My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ150CAHE3_A/I
;;2.jpg)
- Part No.:
- SMBJ150CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ150CAHE3_A/I.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,266
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ150CAHE3_A/I from Vishay General Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 150 V standoff voltage (VWM), 167–185 V breakdown range (VBR), 243 V maximum clamping voltage (VC) at 2.5 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies and telecom infrastructure.
For engineers reviewing the SMBJ150CAHE3_A/I datasheet, SMBJ150CAHE3_A/I pinout, SMBJ150CAHE3_A/I application, or SMBJ150CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT assembly on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protection element across bidirectional signal or DC bus lines, responding within <1 ps to ESD and lightning-induced surges. Its glass-passivated junction ensures stable breakdown behavior under repetitive transients, while the low incremental surge resistance minimizes voltage overshoot during high-current events.
The SMBJ150CAHE3_A/I is rated for -55 °C to +150 °C operating junction temperature, meets MSL Level 1 per J-STD-020 (260 °C peak reflow), and supports 0.01 % duty cycle repetitive surge conditions. Its unmarked bidirectional polarity eliminates orientation concerns during placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR min/max | 167 V / 185 V at 1 mA test current - guaranteed breakdown onset range; ensures consistent clamping threshold across production lots. |
| VC @ IPPM | 243 V at 2.5 A - maximum clamped voltage during 10/1000 µs surge; determines protected circuit's peak overvoltage exposure. |
| PPPM | 600 W - peak pulse power handling with 10/1000 µs waveform; defines transient energy absorption capacity without failure. |
| ID @ VWM | 1.0 µA - reverse leakage at full standoff voltage; ensures minimal standby power loss and signal integrity in high-impedance circuits. |
| TJ max | +150 °C - maximum junction temperature; enables reliable operation in enclosed industrial enclosures or under sustained load. |
| RθJA | 100 °C/W - thermal resistance junction-to-ambient on standard PCB pad layout; informs derating requirements above 25 °C ambient. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward conduction mode | Connects to lower-potential side of protected line; forms symmetrical clamping path with cathode in bidirectional operation. |
| Cathode | Current exit point in forward conduction mode | Connects to higher-potential side; together with anode, enables equal clamping in both voltage polarities. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating DC lines without polarity constraints or external circuitry. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - suitable for under-hood and infotainment systems. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) and ISO 7637-2 pulse 1/2/5a when properly mounted on 5.0 mm × 5.0 mm copper pads. |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak, eliminating bake-out requirements and supporting high-yield SMT manufacturing. |
| Glass-passivated junction | Provides stable VBR tolerance and low leakage drift over time and temperature, critical for long-life industrial deployments. |
Applications
| Industrial Power Supply Protection | Automotive Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V DC input rails in programmable logic controllers (PLCs) against inductive switching spikes from solenoid drivers. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed across input terminals to limit transient excursions below 24 V rail-rated IC thresholds. Use Value: Prevents latch-up or gate oxide damage in upstream DC-DC controllers and microcontrollers by limiting clamped voltage to 243 V during 600 W surges. |
Use Scenario: Shielding CAN FD and LIN bus transceivers in body control modules from battery dump and load-dump events. IC Role / Device Role / Timing Role: Bidirectional transient suppressor connected between signal pair and chassis ground to absorb ±100 V surges. Use Value: Maintains signal integrity during ISO 7637-2 Pulse 5a (75 V, 400 ms) by clamping without forward conduction, preserving bus timing margins. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Safeguarding Ethernet PHY interfaces and PoE injectors in network edge switches exposed to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Secondary-level TVS on secondary-side DC outputs and data lines, coordinated with primary GDTs and MOVs. Use Value: Limits residual clamping voltage to ≤243 V after upstream suppression, ensuring compliance with IEC 61000-4-5 Ed.3 Class B immunity requirements. |
Use Scenario: Protecting gate drivers and MCU I/O pins in smart washing machine motor control boards from commutation spikes. IC Role / Device Role / Timing Role: Localized TVS on half-bridge gate drive traces and microcontroller ADC inputs to suppress sub-100 ns ringing. Use Value: Reduces EMI-induced false triggering and analog measurement errors by clamping fast transients before they propagate into sensitive analog domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA-M3/5B | Halogen-free, RoHS-compliant, commercial-grade variant; lacks AEC-Q101 qualification. | Not approved for automotive use; suitable for cost-sensitive industrial or consumer designs where automotive reliability is not required. | Select when halogen-free compliance is mandated and automotive qualification is unnecessary. |
| SMCJ150CAHE3_A/I | Same electrical specs but in larger SMC (DO-214AB) package; higher thermal mass and RθJA = 50 °C/W. | Better suited for high-repetition-rate surges or elevated ambient temperatures (>85 °C) due to superior heat dissipation. | Choose when board space allows and thermal performance under sustained surge duty exceeds SMBJ capability. |
Compared with SMBJ150CAHE3_A/I, the M3/5B alternative offers identical clamping performance without automotive qualification, while the SMCJ150CAHE3_A/I provides enhanced thermal robustness in a larger footprint - enabling trade-offs between reliability certification, thermal headroom, and PCB area.
Availability
SMBJ150CAHE3_A/I is available at Aetrix Electronics and suitable for industrial power supply protection, automotive sensor interface hardening, and telecom line card surge mitigation requiring stable component supply, AEC-Q101 traceability, and consistent 600 W transient handling.
Supply support for SMBJ150CAHE3_A/I 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, precision, and automotive-grade validation.
The SMBJ series delivers standardized transient suppression in compact SMB packages, engineered for high-volume automated assembly in automotive, industrial, and telecom applications demanding repeatable clamping performance and AEC-Q101 compliance.
FAQ
What does the "CA" suffix indicate in SMBJ150CAHE3_A/I?
The "CA" suffix denotes a bidirectional configuration - meaning SMBJ150CAHE3_A/I provides symmetrical clamping for both positive and negative voltage transients without polarity sensitivity. Unlike unidirectional variants (e.g., SMBJ150A), it has no cathode band marking and is used where AC signals or floating DC lines require protection in both directions.
Is SMBJ150CAHE3_A/I suitable for automotive applications?
Yes, SMBJ150CAHE3_A/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation. It undergoes stress testing for temperature cycling, humidity bias, and mechanical shock, making it appropriate for under-hood, infotainment, and body electronics where transient immunity and long-term reliability are critical.
What is the maximum clamping voltage of SMBJ150CAHE3_A/I and at what current is it specified?
The maximum clamping voltage (VC) of SMBJ150CAHE3_A/I is 243 V, measured at a peak pulse current (IPPM) of 2.5 A using the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is guaranteed across the operating temperature range.
How does the SMB (DO-214AA) package of SMBJ150CAHE3_A/I affect thermal performance?
The SMB package of SMBJ150CAHE3_A/I delivers a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This limits continuous power dissipation to 5.0 W at 50 °C ambient and requires derating above that temperature per Vishay's Fig. 2 curve.
Can SMBJ150CAHE3_A/I replace SMBJ150A in a design?
No - SMBJ150CAHE3_A/I is bidirectional, while SMBJ150A is unidirectional with a marked cathode band. Substituting them requires verifying circuit topology: SMBJ150CAHE3_A/I may be used only where symmetrical clamping is needed and polarity independence is acceptable; otherwise, incorrect connection could lead to unintended conduction or failed protection.
SMBJ150CAHE3_A/I 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 243V
- Current - Peak Pulse (10/1000µs):
- 2.5A
- 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)
SMBJ150CAHE3_A/I FAQ
1.How can I place an order for SMBJ150CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ150CAHE3_A/I 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 SMBJ150CAHE3_A/I reliable?
The price and inventory of SMBJ150CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ150CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ150CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ150CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ150CAHE3_A/I?
SMBJ150CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ150CAHE3_A/I 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 SMBJ150CAHE3_A/I?
For technical support, including SMBJ150CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ150CAHE3_A/I requirements.
6.How does Aetrix verify that SMBJ150CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ150CAHE3_A/I 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 SMBJ150CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ150CAHE3_A/I?
All SMBJ150CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ150CAHE3_A/I, 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 SMBJ150CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMBJ150CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ150CAHE3_A/I 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 …
