My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ7.0D-M3/H
;;2.jpg)
- Part No.:
- SMBJ7.0D-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ7.0D-M3/H.pdf
- Description:
- TVS DIODE 7VWM 11.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,348
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ7.0D-M3/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping inductive switching transients and ESD events on power and signal lines. It features a 7.0 V stand-off voltage (VWM), 7.90–8.48 V breakdown voltage (VBR) at 10 mA, 11.8 V maximum clamping voltage (VC) at 50.8 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in industrial sensor interfaces and DC power rail protection.
For engineers reviewing the SMBJ7.0D-M3/H datasheet, SMBJ7.0D-M3/H pinout, SMBJ7.0D-M3/H application, or SMBJ7.0D-M3/H equivalent, key selection criteria include unidirectional polarity, ±3.5 % VBR tolerance, low leakage (<500 μA at VWM), M3 halogen-free RoHS-compliant construction, and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This TVS diode operates as a voltage-clamping device triggered by overvoltage events exceeding its reverse stand-off voltage of 7.0 V. Its silicon avalanche structure delivers sub-nanosecond response time and low incremental surge resistance to limit transient energy before it damages downstream ICs or MOSFETs.
The SMBJ7.0D-M3/H is rated for 150 °C maximum junction temperature and meets J-STD-020 MSL Level 1 with 260 °C reflow peak. Its thermal resistance is 125 °C/W (junction-to-ambient, mounted on minimum recommended pad) and 20 °C/W (junction-to-mount), supporting reliable operation under repetitive surge conditions when properly heatsinked.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse operating voltage; ensures no conduction during normal system operation. |
| VBR min/max | 7.90 V / 8.48 V at 10 mA - Tight ±3.5 % tolerance enables precise overvoltage threshold setting without margin overdesign. |
| VC @ IPPM | 11.8 V at 50.8 A - Clamping voltage under 10/1000 μs surge defines worst-case stress imposed on protected circuitry. |
| PPPM | 600 W - Peak pulse power handling capacity determines survivability against lightning-induced or inductive kickback surges. |
| ID @ VWM | <500 μA - Low reverse leakage preserves signal integrity and minimizes standby power loss in battery-powered systems. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline compatible with high-volume pick-and-place assembly and IPC-7351B footprints. |
| Mounting | M3 suffix - Halogen-free, RoHS-compliant, industrial-grade construction with matte tin-plated leads meeting J-STD-002 solderability. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with cathode band marking; dimensions 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; forms current path during reverse-biased clamping event. |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., 12 V rail or sensor output); carries surge current into anode during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| ±3.5 % VBR tolerance | Enables tighter system-level overvoltage margin control versus looser-tolerance alternatives, reducing need for derating. |
| 600 W peak pulse power (10/1000 μs) | Supports robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation after repeated events. |
| MSL Level 1, 260 °C peak reflow | Eliminates pre-baking requirements and supports single-pass lead-free reflow assembly in high-throughput manufacturing. |
| Low 500 μA max ID at VWM | Minimizes quiescent loading on low-power sensor outputs and battery-backed circuits where leakage directly impacts runtime. |
| M3 halogen-free & RoHS-compliant | Fulfills environmental compliance mandates for industrial and consumer electronics sold in EU, China, and North America markets. |
Applications
| Industrial Sensor Interface Protection | Automotive Body Control Module (BCM) Power Rail |
|---|---|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loop or 0–5 V voltage output) of temperature/pressure sensors exposed to relay coil flyback and ESD in factory automation cabinets. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between sensor output and microcontroller ADC input, referenced to local ground. Use Value: Limits transient voltage to ≤11.8 V during 50.8 A surge, preventing ADC saturation or latch-up while maintaining <500 μA leakage during normal 7.0 V operation. |
Use Scenario: Safeguarding 12 V supply inputs to BCM microcontrollers and CAN transceivers against load dump and alternator ripple spikes. IC Role / Device Role / Timing Role: Primary front-end TVS on main power entry point, positioned upstream of LDO regulators and fuse networks. Use Value: Absorbs 600 W surge energy within 1000 μs, clamping bus voltage to 11.8 V to avoid regulator overvoltage shutdown and preserve CAN communication integrity. |
| Consumer Appliance Motor Drive Board | Telecom DSL Line Card Surge Protection |
Use Scenario: Shielding gate drivers and bootstrap circuits in BLDC motor inverters from inductive kickback generated by PWM-controlled windings. IC Role / Device Role / Timing Role: Localized TVS across half-bridge high-side and low-side driver supply rails (e.g., VDD and VSS). Use Value: Responds in <1 ns to clamp voltage overshoots, preventing gate oxide damage to MOSFETs while sustaining 150 °C junction temperature during repeated commutation cycles. |
Use Scenario: Secondary-level protection on POTS line interface circuits subjected to induced surges from nearby AC mains or lightning coupling. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between tip/ring lines and codec ICs, coordinated with primary GDT-based protection. Use Value: Provides precise 7.0 V standoff and 11.8 V clamping to protect low-voltage telecom ICs without interfering with normal -48 V DC bias or ringing signals. |
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-M3/HR | Same VWM/VBR/VC specs; HR suffix indicates enhanced reliability screening per AEC-Q200 Grade 1 (−40 °C to +125 °C). | Required for automotive under-hood modules where extended temperature cycling and long-term reliability validation are mandated. | Select SMBJ7.0A-M3/HR only if AEC-Q200 qualification is contractually required; otherwise SMBJ7.0D-M3/H offers identical electrical performance at lower cost. |
| P6SMB7.0A | Same SMB package and 7.0 V VWM, but ±5 % VBR tolerance (7.22–7.78 V) and higher 1000 μA max ID at VWM. | Suitable for non-critical consumer applications where tighter clamping precision and ultra-low leakage are not required. | Choose P6SMB7.0A only for cost-sensitive designs accepting wider VBR spread and higher leakage; SMBJ7.0D-M3/H provides superior precision and leakage control. |
Compared with SMBJ7.0A-M3/HR and P6SMB7.0A, the SMBJ7.0D-M3/H delivers tighter ±3.5 % VBR tolerance and lower 500 μA leakage - making it optimal for industrial sensor and telecom line-card designs requiring precise clamping thresholds and minimal standby loading.
Availability
SMBJ7.0D-M3/H is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, and telecom line card protection requiring stable component supply, M3 halogen-free compliance, and repeatable 600 W surge handling.
Supply support for SMBJ7.0D-M3/H 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series was engineered for high-energy transient suppression in space-constrained SMT applications - targeting industrial automation, automotive electronics, and communications infrastructure where consistent clamping performance and process compatibility are critical.
FAQ
What is the maximum clamping voltage of the SMBJ7.0D-M3/H under a 10/1000 μs surge?
The SMBJ7.0D-M3/H has a maximum clamping voltage (VC) of 11.8 V when subjected to its rated peak pulse current of 50.8 A using the standardized 10/1000 μs waveform. This value is measured at the device terminals under defined test conditions and represents the upper bound of voltage seen by downstream circuitry during surge events - a critical parameter for ensuring protected ICs remain within absolute maximum ratings.
Does the SMBJ7.0D-M3/H meet RoHS and halogen-free requirements?
Yes, the SMBJ7.0D-M3/H carries the M3 suffix, which certifies it as halogen-free, RoHS-compliant, and industrial grade per Vishay's material categorization standards. Its molding compound meets UL 94 V-0 flammability rating, and its matte tin-plated leads comply with J-STD-002 solderability requirements - fulfilling environmental and manufacturability mandates for global electronics production.
What is the reverse leakage current specification for SMBJ7.0D-M3/H at its stand-off voltage?
The SMBJ7.0D-M3/H specifies a maximum reverse leakage current (ID) of 500 μA at its 7.0 V stand-off voltage (VWM), tested at TA = 25 °C. This low leakage ensures minimal loading on sensitive analog sensor outputs and battery-powered circuits, preserving signal fidelity and extending operational runtime without compromising transient suppression capability.
Is SMBJ7.0D-M3/H suitable for bidirectional transient protection?
No, SMBJ7.0D-M3/H is a unidirectional TVS diode, indicated by the "D" suffix (as opposed to "CD" for bidirectional variants). It conducts only during reverse-biased overvoltage events - with the cathode band marking the high-side terminal. For AC or bipolar signal line protection, a bidirectional part such as SMBJ7.0CD-M3/H must be selected instead.
What is the thermal resistance and maximum junction temperature rating of SMBJ7.0D-M3/H?
The SMBJ7.0D-M3/H has a typical junction-to-ambient thermal resistance (RθJA) of 125 °C/W when mounted on the minimum recommended PCB pad layout, and a junction-to-mount resistance (RθJM) of 20 °C/W. Its maximum rated junction temperature (TJ max) is +150 °C, enabling reliable operation in industrial environments with elevated ambient temperatures and repetitive surge duty cycles.
SMBJ7.0D-M3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7V
- Voltage - Breakdown (Min):
- 7.9V
- Voltage - Clamping (Max) @ Ipp:
- 11.8V
- Current - Peak Pulse (10/1000µs):
- 50.8A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ7.0D-M3/H FAQ
1.How can I place an order for SMBJ7.0D-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ7.0D-M3/H 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 SMBJ7.0D-M3/H reliable?
The price and inventory of SMBJ7.0D-M3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ7.0D-M3/H is usually 5 days.
3.What payment methods are accepted for SMBJ7.0D-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ7.0D-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ7.0D-M3/H?
SMBJ7.0D-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ7.0D-M3/H 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 SMBJ7.0D-M3/H?
For technical support, including SMBJ7.0D-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ7.0D-M3/H requirements.
6.How does Aetrix verify that SMBJ7.0D-M3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ7.0D-M3/H 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 SMBJ7.0D-M3/H meets industry standards.
7.What is the process for return or replacement of SMBJ7.0D-M3/H?
All SMBJ7.0D-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ7.0D-M3/H, 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 SMBJ7.0D-M3/H part is unused and in its original packaging.
Return procedure for SMBJ7.0D-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ7.0D-M3/H Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
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…
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, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
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.
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.
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…
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…
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…
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 …
