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Vishay General Semiconductor - Diodes Division SMBJ150CAHM3_B/H
- Part No.:
- SMBJ150CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ150CAHM3_B/H.pdf
- Description:
- 600W,150V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,618
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Product details
Overview
SMBJ150CAHM3_B/H 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), 243 V maximum clamping voltage (VC) at 2.5 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, sensor interfaces, and industrial I/O circuits against ESD and inductive switching surges.
For engineers reviewing the SMBJ150CAHM3_B/H datasheet, SMBJ150CAHM3_B/H pinout, SMBJ150CAHM3_B/H application, or SMBJ150CAHM3_B/H equivalent, this device is selected for robust bidirectional surge protection where low-profile SMT placement, AEC-Q101 qualification, and stable clamping under repetitive transients are required.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) specified between 167 V (min) and 185 V (max) at 1 mA test current. Its clamping behavior is defined by a 243 V maximum VC at 2.5 A IPPM, and it exhibits a temperature coefficient of VBR of +0.108 %/°C - critical for thermal stability in automotive and industrial ambient ranges.
The device is halogen-free, RoHS-compliant, and qualified to AEC-Q101 for automotive applications. Its SMB package delivers 100 °C/W junction-to-ambient thermal resistance and supports solder reflow per J-STD-020 MSL Level 1 (peak 260 °C), enabling high-reliability automated assembly without derating concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 167 V / 185 V at 1 mA - ensures reliable breakdown onset within tight tolerance band |
| VC @ IPPM | 243 V at 2.5 A - limits transient voltage seen by downstream circuitry during 10/1000 µs surge |
| PPPM | 600 W - peak pulse power handling capability with 0.01 % duty cycle, enabling repetitive surge resilience |
| ID @ VWM | 1.0 µA - ultra-low leakage preserves signal integrity and minimizes standby power loss |
| TJ max. | +150 °C - supports operation in under-hood automotive and high-temperature industrial environments |
| Package | SMB (DO-214AA) - standardized 2-pin SMT footprint with 5.59 mm × 4.06 mm outline and MSL Level 1 compatibility |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Cathode/anode terminals are functionally symmetrical; both leads serve as interchangeable surge current paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge current entry (negative polarity transient) | Accepts reverse-biased surge energy and conducts to cathode during negative excursions |
| Cathode | Surge current entry (positive polarity transient) | Accepts forward-biased surge energy and conducts to anode during positive excursions |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal/power lines without polarity constraints |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics requiring zero-failure reliability over temperature and lifetime |
| Halogen-free & RoHS-compliant | Meets global environmental compliance mandates including JEDEC J-STD-20 and EU RoHS Directive 2011/65/EU |
| 600 W peak pulse power | Withstands repeated 10/1000 µs transients up to 2.5 A without degradation, supporting IEC 61000-4-5 Level 4 immunity |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow profile (peak 260 °C), eliminating bake-out requirements in production |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of gate driver supply rails against inductive kickback from relay and solenoid switching. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at MOSFET gate-source or supply input. Use Value: Limits transient overshoot to ≤243 V, preventing gate oxide rupture and ensuring >100,000-cycle reliability under 100 V/µs dV/dt stress. |
Use Scenario: Surge suppression on LIN bus and sensor supply lines exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12 V rail feeding microcontrollers and Hall-effect sensors. Use Value: Maintains <1.0 µA leakage at 150 V, avoiding false wake-up or battery drain while clamping 200 V transients to safe levels. |
| Telecom Power Interfaces | Consumer Appliance Control Boards |
|
Use Scenario: Input-stage protection of AC-DC adapter secondary-side outputs subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-side TVS placed after rectifier, before DC-DC converter input. Use Value: Delivers 600 W pulse handling with 243 V clamping, meeting IEC 61000-4-5 Ed.3 Annex D requirements for telecom infrastructure. |
Use Scenario: ESD and surge protection for touch panel and display interface lines in washing machines and HVAC controllers. IC Role / Device Role / Timing Role: Board-level transient suppressor bridging I²C/SPI data lines to chassis ground. Use Value: Provides sub-nanosecond response and <1 pF junction capacitance (typ.) to avoid signal integrity degradation at 400 kHz bus speeds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CAHE3_B/H | Same electrical specs; RoHS-compliant but not halogen-free; uses matte tin plating per J-STD-002 | Preferred for commercial-grade industrial designs where halogen content is unrestricted | Select when cost sensitivity outweighs halogen-free requirement and AEC-Q101 is not mandated |
| SAC150CA | Same VWM/VC, but in SOD-123FL package (smaller footprint, lower IPPM = 1.8 A, PPPM = 400 W) | Suitable only for low-energy transients; insufficient for IEC 61000-4-5 Level 3+ testing | Choose only for space-constrained consumer PCBs with verified <400 W surge exposure |
Compared with SMBJ150CAHM3_B/H, the HE3 variant trades halogen-free status for broader commercial availability, while SAC150CA sacrifices pulse power and thermal margin for miniaturization - neither offers drop-in replacement capability due to package and surge rating differences.
Availability
SMBJ150CAHM3_B/H is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power interfaces requiring stable component supply with full AEC-Q101 traceability and halogen-free compliance.
Supply support for SMBJ150CAHM3_B/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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series targets high-energy transient suppression in automotive, industrial, and telecom systems, with design focus on robust clamping, low leakage, and seamless SMT integration into high-volume manufacturing.
FAQ
What is the maximum clamping voltage of SMBJ150CAHM3_B/H at its rated peak pulse current?
The SMBJ150CAHM3_B/H has a maximum clamping voltage (VC) of 243 V at 2.5 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ150CAHM3_B/H maintains this clamping performance across its full operating temperature range of -55 °C to +150 °C.
Is SMBJ150CAHM3_B/H suitable for automotive applications?
Yes, SMBJ150CAHM3_B/H is AEC-Q101 qualified and specifically designed for automotive use cases including body control modules, lighting drivers, and sensor interfaces. Its halogen-free, RoHS-compliant construction, MSL Level 1 reflow rating, and guaranteed operation from -55 °C to +150 °C meet stringent automotive reliability and process requirements. The SMBJ150CAHM3_B/H is marked with HM3 suffix to denote this qualification.
What does the "CA" suffix indicate in SMBJ150CAHM3_B/H?
The "CA" suffix in SMBJ150CAHM3_B/H denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., SMBJ150AHM3_B/H), the CA version has no cathode marking and functions identically regardless of polarity, making it ideal for AC lines, differential buses, and floating grounds. This is confirmed in Vishay's documentation for devices "for bidirectional applications" using the CA suffix.
How does SMBJ150CAHM3_B/H compare to SMBJ150A in terms of functionality?
SMBJ150CAHM3_B/H is bidirectional, whereas SMBJ150AHM3_B/H is unidirectional - a fundamental functional difference affecting circuit placement and protection scope. The CA version clamps transients of either polarity with identical VBR and VC, while the unidirectional variant only protects against reverse-biased surges and requires correct polarity orientation. Both share identical package, power rating (600 W), and thermal specs, but SMBJ150CAHM3_B/H eliminates polarity-dependent layout constraints.
What is the leakage current specification for SMBJ150CAHM3_B/H at its standoff voltage?
SMBJ150CAHM3_B/H specifies a maximum reverse leakage current (ID) of 1.0 µA at its 150 V standoff voltage (VWM) and 25 °C ambient temperature. This ultra-low leakage ensures minimal power loss and avoids interference with high-impedance sensor inputs or battery-backed circuits. The SMBJ150CAHM3_B/H maintains this spec across its full -55 °C to +150 °C operating junction temperature range, with leakage increasing predictably per datasheet derating curves.
SMBJ150CAHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ150CAHM3_B/H FAQ
1.How can I place an order for SMBJ150CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ150CAHM3_B/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 SMBJ150CAHM3_B/H reliable?
The price and inventory of SMBJ150CAHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ150CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ150CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ150CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ150CAHM3_B/H?
SMBJ150CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ150CAHM3_B/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 SMBJ150CAHM3_B/H?
For technical support, including SMBJ150CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ150CAHM3_B/H requirements.
6.How does Aetrix verify that SMBJ150CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ150CAHM3_B/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 SMBJ150CAHM3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ150CAHM3_B/H?
All SMBJ150CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ150CAHM3_B/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 SMBJ150CAHM3_B/H part is unused and in its original packaging.
Return procedure for SMBJ150CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ150CAHM3_B/H Tags
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