Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > TVS Diodes

Vishay General Semiconductor - Diodes Division SMBJ7.0HE3/5B

Name: SMBJ7.0HE3/5B
Brand: Vishay General Semiconductor - Diodes Division
SKU: SMBJ7.0HE3/5B
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: SMBJ7.0HE3/5B

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: DO-214AA, SMB

Datasheet:: SMBJ7.0HE3/5B.pdf

Description:: TVS DIODE 7VWM 13.3VC DO214AA

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,925

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

SMBJ7.0HE3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 7.0 V stand-off voltage (V_WM), 7.78–8.60 V breakdown voltage (V_BR) at 10 mA, 12.0 V maximum clamping voltage (V_C) at 50.0 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.

For engineers reviewing the SMBJ7.0HE3/5B datasheet, SMBJ7.0HE3/5B pinout, SMBJ7.0HE3/5B application, or SMBJ7.0HE3/5B equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (R_θJA = 100 °C/W), junction temperature range (−55 to +150 °C), and packaging details for tape-and-reel delivery (3200 pcs per 13″ reel).

Technical Context

This TVS diode operates as a unidirectional clamping device, leveraging an avalanche breakdown mechanism to limit transient overvoltages before they damage downstream ICs or MOSFETs. Its glass-passivated junction ensures stable leakage performance (<800 µA at V_WM) and fast response time (<1 ns), while the cathode-band polarity marking enables reliable automated placement on PCBs.

The SMBJ7.0HE3/5B is rated for 600 W peak pulse power under 10/1000 µs waveform with 0.01% duty cycle, and supports repetitive surge events when thermally managed via its 20 °C/W junction-to-lead thermal resistance. It meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 for automotive-grade reliability.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	7.0 V - Maximum continuous reverse operating voltage before clamping begins; sets upper limit for normal circuit operation.
V_BR (min/max)	7.78 V / 8.60 V at I_T = 10 mA - Confirmed breakdown threshold range defining turn-on consistency across production lots.
V_C @ I_PPM	12.0 V at 50.0 A - Clamped voltage during worst-case 10/1000 µs surge; determines maximum stress seen by protected device.
P_PPM	600 W - Peak pulse power handling capability; defines transient energy absorption capacity without failure.
I_PPM	50.0 A - Peak surge current supported at V_C; used with PCB trace width and layout to ensure safe current path.
T_J max.	+150 °C - Maximum junction temperature; constrains ambient operating range and heatsinking requirements.
R_θJA	100 °C/W - Junction-to-ambient thermal resistance on standard 0.2″ × 0.2″ copper pads; guides thermal pad design for sustained surge duty.

Pinout & Package

Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking on body.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Current entry terminal during forward conduction	Connected to lower-potential side (e.g., ground or return path) in unidirectional protection configuration.
Cathode	Current exit terminal during forward conduction; marked with band	Connected to protected line (e.g., 7 V rail or signal input); clamps transients toward anode reference.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive applications including engine control, infotainment, and ADAS modules requiring high-reliability surge suppression.
600 W peak pulse power (10/1000 µs)	Enables protection against ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 surges without derating in typical layouts.
Glass passivated junction	Ensures stable reverse leakage (<800 µA at 7.0 V) and long-term parameter stability under thermal cycling and humidity exposure.
MSL Level 1 (260 °C peak reflow)	Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements.
Low incremental surge resistance	Minimizes V_C overshoot during fast-rising transients, improving clamping precision for sub-100 ns edges.

Applications

Automotive Power Rail Protection	Industrial Sensor Signal Line Protection
Use Scenario: Protecting 5–12 V power inputs in automotive body control modules (BCM) exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between supply rail and chassis ground to shunt transients before reaching MCU or CAN transceivers. Use Value: Limits clamped voltage to ≤12.0 V during 50 A surges, preventing latch-up or gate oxide damage in 3.3 V/5 V logic devices downstream.	Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) from ESD and switching noise in factory-floor pressure/temperature sensors. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between signal and return, referenced to local ground plane to suppress common-mode transients. Use Value: Maintains signal integrity with <12.0 V clamping and <800 µA leakage at 7.0 V, avoiding DC offset or loading errors in precision measurement circuits.
Consumer Device USB Port Protection	Telecom Equipment DC Input Stage
Use Scenario: Safeguarding USB VBUS lines in portable chargers and docking stations against hot-plug surges and ESD events. IC Role / Device Role / Timing Role: Unidirectional TVS installed between VBUS and GND, upstream of USB power switches and load switches. Use Value: Responds in <1 ns to ±8 kV contact ESD (IEC 61000-4-2), clamping to 12.0 V to prevent damage to USB PD controllers and port protection ICs.	Use Scenario: Guarding −48 V DC telecom power inputs against lightning-induced surges and induced transients on central office equipment. IC Role / Device Role / Timing Role: Series-connected unidirectional TVS on negative rail, referenced to system ground, to absorb differential-mode surges. Use Value: Withstands 600 W pulses and operates up to +150 °C ambient, ensuring uptime in sealed, high-temperature telecom enclosures.

Automotive Power Rail Protection

Industrial Sensor Signal Line Protection

Use Scenario: Protecting 5–12 V power inputs in automotive body control modules (BCM) exposed to load dump and alternator ripple.

IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between supply rail and chassis ground to shunt transients before reaching MCU or CAN transceivers.

Use Value: Limits clamped voltage to ≤12.0 V during 50 A surges, preventing latch-up or gate oxide damage in 3.3 V/5 V logic devices downstream.

Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) from ESD and switching noise in factory-floor pressure/temperature sensors.

IC Role / Device Role / Timing Role: Low-capacitance TVS connected between signal and return, referenced to local ground plane to suppress common-mode transients.

Use Value: Maintains signal integrity with <12.0 V clamping and <800 µA leakage at 7.0 V, avoiding DC offset or loading errors in precision measurement circuits.

Consumer Device USB Port Protection

Telecom Equipment DC Input Stage

Use Scenario: Safeguarding USB VBUS lines in portable chargers and docking stations against hot-plug surges and ESD events.

IC Role / Device Role / Timing Role: Unidirectional TVS installed between VBUS and GND, upstream of USB power switches and load switches.

Use Value: Responds in <1 ns to ±8 kV contact ESD (IEC 61000-4-2), clamping to 12.0 V to prevent damage to USB PD controllers and port protection ICs.

Use Scenario: Guarding −48 V DC telecom power inputs against lightning-induced surges and induced transients on central office equipment.

IC Role / Device Role / Timing Role: Series-connected unidirectional TVS on negative rail, referenced to system ground, to absorb differential-mode surges.

Use Value: Withstands 600 W pulses and operates up to +150 °C ambient, ensuring uptime in sealed, high-temperature telecom enclosures.

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient voltage suppression applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMBJ7.0A-E3/5B	Commercial-grade (non-AEC-Q101), identical electrical specs and SMB package.	Lacks automotive qualification; suitable for consumer/industrial use where AEC-Q101 is not mandated.	Select when cost sensitivity outweighs automotive reliability requirements and no vehicle-level validation is needed.
SAC7.0	Same V_WM (7.0 V) but lower P_PPM (400 W), smaller SOD-123FL package, non-AEC-Q101.	Lower surge margin and no automotive qualification; limited to space-constrained, low-energy environments.	Choose only for compact PCBs with ≤400 W threat profiles and no automotive or harsh-environment requirements.

Compared with SMBJ7.0A-E3/5B, the SMBJ7.0HE3/5B adds AEC-Q101 qualification without altering electrical behavior; versus SAC7.0, it delivers 50% higher surge power and proven thermal robustness in larger SMB footprint - critical for sustained industrial or automotive deployment.

Availability

SMBJ7.0HE3/5B is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power input stages requiring stable component supply, AEC-Q101 compliance, and repeatable 600 W transient suppression performance.

Supply support for SMBJ7.0HE3/5B includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.

The SMBJ series is engineered for high-energy transient suppression in automotive, industrial, and communications systems - delivering consistent clamping performance, AEC-Q101 qualification, and robust thermal design in standardized surface-mount packages.

FAQ

What is the clamping voltage of SMBJ7.0HE3/5B at its rated peak pulse current?

The SMBJ7.0HE3/5B has a maximum clamping voltage (V_C) of 12.0 V at 50.0 A peak pulse current (I_PPM) under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and represents the upper bound of voltage imposed on protected circuitry during worst-case surge events - a key parameter for verifying compatibility with downstream IC voltage tolerances in designs using SMBJ7.0HE3/5B.

Is SMBJ7.0HE3/5B qualified for automotive applications?

Yes, SMBJ7.0HE3/5B is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" (RoHS-compliant and AEC-Q101 qualified). This qualification validates its reliability for automotive powertrain, chassis, and body electronics subjected to extended temperature cycling, mechanical shock, and high-humidity environments - making SMBJ7.0HE3/5B suitable for deployment in ECUs, ADAS sensors, and infotainment systems where automotive-grade assurance is mandatory.

What does the "5B" suffix mean in SMBJ7.0HE3/5B?

The "5B" suffix in SMBJ7.0HE3/5B denotes the preferred package code for 13-inch diameter plastic tape-and-reel delivery, containing 3200 units per reel. This packaging format is optimized for high-volume SMT assembly lines and ensures consistent feeding performance in pick-and-place machines - distinct from "52" (7-inch reel, 750 units) and critical for production planning when sourcing SMBJ7.0HE3/5B.

How does SMBJ7.0HE3/5B differ from SMBJ7.0A-E3/5B?

SMBJ7.0HE3/5B and SMBJ7.0A-E3/5B share identical electrical characteristics (V_WM, V_BR, V_C, P_PPM) and SMB package dimensions, but differ in qualification: SMBJ7.0HE3/5B carries AEC-Q101 certification, while SMBJ7.0A-E3/5B is commercial-grade only. Both use RoHS-compliant matte tin plating and meet MSL Level 1 - so SMBJ7.0HE3/5B is selected specifically when automotive reliability validation is required for the final application.

What is the maximum operating junction temperature for SMBJ7.0HE3/5B?

The maximum operating junction temperature (T_J) for SMBJ7.0HE3/5B is +150 °C, as specified in Vishay's datasheet Document Number 88392. This rating allows reliable operation in under-hood automotive environments and sealed industrial enclosures, provided thermal design (e.g., copper pad area, airflow, adjacent heat sources) keeps actual junction temperature below this limit - a constraint directly tied to power dissipation and ambient conditions in any implementation using SMBJ7.0HE3/5B.

SMBJ7.0HE3/5B Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Package/Case:: DO-214AA, SMB

Series:: TransZorb®

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: Zener

Unidirectional Channels:: 1

Bidirectional Channels:: -

Voltage - Reverse Standoff (Typ):: 7V

Voltage - Breakdown (Min):: 7.78V

Voltage - Clamping (Max) @ Ipp:: 13.3V

Current - Peak Pulse (10/1000µs):: 45.1A

Power - Peak Pulse:: 600W

Power Line Protection:: No

Applications:: -

Capacitance @ Frequency:: -

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AA (SMBJ)

SMBJ7.0HE3/5B FAQ

1.How can I place an order for SMBJ7.0HE3/5B through Aetrix?

Please submit a Request for Quotation (RFQ) for SMBJ7.0HE3/5B on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SMBJ7.0HE3/5B reliable?

The price and inventory of SMBJ7.0HE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ7.0HE3/5B is usually 5 days.

3.What payment methods are accepted for SMBJ7.0HE3/5B?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ7.0HE3/5B transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SMBJ7.0HE3/5B?

SMBJ7.0HE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SMBJ7.0HE3/5B order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SMBJ7.0HE3/5B?

For technical support, including SMBJ7.0HE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ7.0HE3/5B requirements.

6.How does Aetrix verify that SMBJ7.0HE3/5B is sourced from the original manufacturer or authorized distributors?

All SMBJ7.0HE3/5B products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SMBJ7.0HE3/5B meets industry standards.

7.What is the process for return or replacement of SMBJ7.0HE3/5B?

All SMBJ7.0HE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ7.0HE3/5B, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SMBJ7.0HE3/5B part is unused and in its original packaging.

Return procedure for SMBJ7.0HE3/5B:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-11 Comparator Circuit: Voltage Thresholds, Op-Amp Differences, LM393 and Practical Design

Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.

2026-09-10 Schmitt Trigger Explained: Hysteresis, Circuits, Inverters and Applications

Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …