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Vishay General Semiconductor - Diodes Division SMBJ150AHE3/5B
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- Part No.:
- SMBJ150AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ150AHE3/5B.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,411
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Product details
Overview
SMBJ150AHE3/5B 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 DC power rails and signal lines. It features a 150 V standoff voltage (VWM), 167–185 V breakdown voltage (VBR) at 1 mA, 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 - deployed in industrial motor drives, telecom power supplies, and automotive ECUs.
For engineers reviewing the SMBJ150AHE3/5B datasheet, SMBJ150AHE3/5B pinout, SMBJ150AHE3/5B application, or SMBJ150AHE3/5B equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (−55 to +150 °C), and RoHS-compliant packaging details essential for ESD/surge protection design-in and BOM validation.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (<1 µA leakage at VWM), then rapidly avalanches below 1 ns to clamp transient energy when voltage exceeds VBR. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance.
The device is rated for 600 W peak pulse power (10/1000 µs), 100 A non-repetitive forward surge current (8.3 ms half-sine), and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its cathode-band polarity marking and matte tin-plated leads comply with J-STD-002 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR (min/max) | 167 V / 185 V at IT = 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during transients. |
| VC @ IPPM | 243 V at 2.5 A - Clamped voltage under rated 10/1000 µs surge; determines protected circuit's maximum stress level. |
| PPPM | 600 W - Peak pulse power handling capability; enables suppression of high-energy lightning-induced surges. |
| IFSM | 100 A - Single half-sine surge rating (8.3 ms); supports protection against inductive switch-off spikes in power electronics. |
| TJ max. | +150 °C - Maximum junction temperature; allows operation in under-hood automotive and industrial environments. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs heatsinking requirements. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads. 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 configuration. |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to protected line (e.g., 150 V rail); avalanche conduction occurs from cathode to anode during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control units and ADAS power rails. |
| 600 W peak pulse power (10/1000 µs) | Enables suppression of high-energy transients per ISO 7637-2 Pulse 5a without degradation across 0.01% duty cycle. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on downstream ICs (e.g., MCU I/O or gate drivers) during surge events. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements. |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term parameter stability under thermal cycling and humidity exposure. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
|
Use Scenario: Protection of 150 V DC bus against switching transients from IGBT gate driver feedback loops and contactor bounce. IC Role / Device Role / Timing Role: Shunt clamping element placed across bus rails to limit voltage excursions to ≤243 V during 600 W surges. Use Value: Prevents destruction of bus capacitors and gate drivers by limiting transient overvoltage within safe SOA margins. |
Use Scenario: Input-stage surge protection on −48 V telecom rectifier outputs exposed to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Unidirectional TVS connected cathode-to-rail to clamp positive-going transients while blocking reverse leakage. Use Value: Maintains <1 µA leakage at −48 V, ensuring no impact on standby current while delivering 243 V clamping under 2.5 A surge. |
| Automotive Engine Control Units | Industrial PLC I/O Modules |
|
Use Scenario: Protection of 12 V/24 V auxiliary supply inputs in ECU modules subjected to load dump per ISO 16750-2. IC Role / Device Role / Timing Role: Secondary clamping stage after primary TVS or varistor, leveraging fast response (<1 ns) and AEC-Q101 qualification. Use Value: Survives 100 A 8.3 ms surge pulses and operates reliably from −55 °C to +150 °C ambient. |
Use Scenario: Signal line protection on analog input channels (e.g., 4–20 mA sensors) interfacing with 150 V field wiring. IC Role / Device Role / Timing Role: Low-capacitance shunt suppressor (typ. <100 pF) placed at connector entry to divert induced transients before signal conditioning. Use Value: Clamps induced surges to ≤243 V without distorting low-frequency sensor signals due to minimal junction capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A-E3/5B | Commercial-grade variant; lacks AEC-Q101 qualification and automotive traceability. | Acceptable for industrial or consumer equipment where automotive reliability is not required. | Select when cost sensitivity outweighs automotive qualification needs and full lifecycle traceability is unnecessary. |
| SMCJ150AHE3/5B | Same VWM/VBR/VC specs but in larger SMC (DO-214AB) package; higher PPPM = 1500 W. | Better suited for higher-energy surge environments (e.g., outdoor telecom cabinets) requiring >600 W margin. | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 4 and PCB layout permits larger footprint. |
Compared with SMBJ150A-E3/5B, the SMBJ150AHE3/5B adds AEC-Q101 qualification and automotive traceability without changing electrical specs; versus SMCJ150AHE3/5B, it trades 900 W lower peak power for 30% smaller PCB area and identical thermal performance on standard pads.
Availability
SMBJ150AHE3/5B is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive engine control units, and PLC I/O modules requiring stable component supply with full automotive-grade traceability and RoHS compliance.
Supply support for SMBJ150AHE3/5B 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series is engineered for high-reliability transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where consistent clamping performance and long-term stability are critical.
FAQ
What is the clamping voltage of SMBJ150AHE3/5B at its rated peak pulse current?
The SMBJ150AHE3/5B has a maximum clamping voltage (VC) of 243 V when subjected to its rated peak pulse current of 2.5 A using a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuits during surge events. The SMBJ150AHE3/5B maintains this clamping performance across its full operating temperature range of −55 °C to +150 °C.
Is SMBJ150AHE3/5B qualified for automotive applications?
Yes, SMBJ150AHE3/5B is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix "HE3". This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD, making SMBJ150AHE3/5B suitable for use in engine control units, body electronics, and ADAS power domains where automotive-grade reliability is mandatory.
What is the standoff voltage rating of SMBJ150AHE3/5B, and how does it relate to system design?
The SMBJ150AHE3/5B has a reverse standoff voltage (VWM) of 150 V, meaning it remains non-conductive up to this DC or RMS voltage level. In system design, VWM must exceed the maximum normal operating voltage of the protected line - for example, a 130 V DC bus - to prevent leakage or premature conduction. The SMBJ150AHE3/5B provides 20 V margin above such rails while maintaining <1 µA leakage at rated VWM.
Does SMBJ150AHE3/5B have a bidirectional variant, and how does it differ?
No - SMBJ150AHE3/5B is strictly unidirectional, identified by the "A" suffix and cathode band marking. Bidirectional variants use the "CA" suffix (e.g., SMBJ150CA) and lack polarity marking. The SMBJ150AHE3/5B conducts only during positive transients relative to its cathode; SMBJ150CA clamps both polarities symmetrically, making it appropriate for AC signal lines or differential buses where polarity reversal occurs.
What package type and mounting specifications apply to SMBJ150AHE3/5B?
SMBJ150AHE3/5B uses the SMB (DO-214AA) surface-mount package with standardized dimensions: 4.57 mm × 3.94 mm body, 2.20 mm height, and 1.52 mm lead width. It is supplied in 13" tape-and-reel (3200 pcs/reel, code "5B") and requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for rated thermal and surge performance. The SMBJ150AHE3/5B meets J-STD-020 MSL Level 1 with 260 °C peak reflow profile.
SMBJ150AHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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)
SMBJ150AHE3/5B FAQ
1.How can I place an order for SMBJ150AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ150AHE3/5B 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 SMBJ150AHE3/5B reliable?
The price and inventory of SMBJ150AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ150AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ150AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ150AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ150AHE3/5B?
SMBJ150AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ150AHE3/5B 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 SMBJ150AHE3/5B?
For technical support, including SMBJ150AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ150AHE3/5B requirements.
6.How does Aetrix verify that SMBJ150AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ150AHE3/5B 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 SMBJ150AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ150AHE3/5B?
All SMBJ150AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ150AHE3/5B, 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 SMBJ150AHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ150AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ150AHE3/5B Tags
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