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Vishay General Semiconductor - Diodes Division SMBJ150CHE3/52
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- Part No.:
- SMBJ150CHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ150CHE3/52.pdf
- Description:
- TVS DIODE 150VWM 268VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,410
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Product details
Overview
SMBJ150CHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 150 V stand-off voltage (VWM), 167–185 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), clamping voltage of 243 V at 2.5 A, and operates across –55 °C to +150 °C junction temperature.
For engineers reviewing the SMBJ150CHE3/52 datasheet, SMBJ150CHE3/52 pinout, SMBJ150CHE3/52 application, or SMBJ150CHE3/52 equivalent, this device is selected for robust overvoltage protection on DC power rails, MOSFET gate drivers, and industrial sensor interfaces where AEC-Q101 qualification, low clamping ratio, and high surge current handling are critical.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-banded polarity, leveraging a glass-passivated silicon junction for stable avalanche behavior under repetitive transient stress. Its 100 °C/W junction-to-ambient thermal resistance and 20 °C/W junction-to-lead resistance support reliable operation on standard PCB copper pads without forced cooling.
The SMBJ150CHE3/52 delivers 2.5 A peak pulse current (IPPM) at its rated clamping voltage and maintains <1.0 µA reverse leakage at 150 V (VWM). It meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101, confirming suitability for automotive powertrain and body electronics applications requiring long-term reliability under thermal cycling and humidity exposure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 150 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail protection threshold. |
| VBR (Breakdown Voltage) | 167–185 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients above nominal rail. |
| VC (Clamping Voltage) | 243 V at IPPM = 2.5 A - Peak voltage seen by protected circuit during 600 W surge; determines downstream component voltage stress. |
| PPPM (Peak Pulse Power) | 600 W (10/1000 µs waveform) - Sustains standardized lightning/surge energy without failure; validated at 0.01% duty cycle. |
| IFSM (Surge Current) | 100 A (8.3 ms half-sine) - Withstands single-event inrush surges common in motor drive and relay coil snubbing. |
| TJ Range | –55 °C to +150 °C - Enables deployment in under-hood automotive, industrial controls, and outdoor telecom equipment. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HAST, and mechanical shock per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant and halogen-free (HE3 suffix). Cathode identified by band marking; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR. |
| Anode (unbanded end) | Reference / return path | Typically tied to system ground or low-impedance return; completes clamping path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Handles IEC 61000-4-5 Level 4 surges (4 kV line-earth) on 12–48 V systems without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes voltage overshoot during clamping-critical for safeguarding 150 V-rated MOSFETs and gate drivers. |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive power electronics including engine control units and battery management systems. |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<1 µA) over lifetime and temperature extremes. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply lines in vehicle body control modules from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power input and local regulator. Use Value: Limits transient excursions to ≤243 V, preventing damage to downstream 36 V-rated LDOs and microcontrollers. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) in factory-floor pressure sensors from ESD and cable discharge. IC Role / Device Role / Timing Role: Line-side transient suppressor mounted at connector entry point. Use Value: Clamps 8 kV contact ESD pulses within nanoseconds while adding <1 pF capacitance-no signal integrity impact. |
| MOSFET Gate Driver Protection | Telecom DC Power Input Protection |
|
Use Scenario: Safeguarding high-side N-channel MOSFET gates driven by isolated gate drivers in motor inverters. IC Role / Device Role / Timing Role: Low-capacitance TVS between gate and source to absorb Miller-induced spikes. Use Value: Responds in <1 ps to suppress >100 V ringing, preserving gate oxide integrity without slowing switching. |
Use Scenario: Front-end surge suppression on –48 V DC telecom rectifier outputs feeding base station RF cards. IC Role / Device Role / Timing Role: Primary unidirectional clamp on power feed prior to DC/DC converters. Use Value: Absorbs 600 W IEC 61000-4-5 surges while maintaining <1 µA leakage at –48 V, ensuring standby efficiency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150AHE3/52 | Same electrical specs and AEC-Q101 qualification; differs only in packaging suffix (HE3 vs. HE3/52 denotes tape-and-reel quantity). | No functional difference; identical use in automotive and industrial designs. | Select SMBJ150AHE3/52 if ordering full reel (750 pcs); SMBJ150CHE3/52 is functionally identical and interchangeable. |
| SMCJ150AHE3/52 | Same VWM, VBR, and VC, but in larger SMC (DO-214AB) package with 1500 W PPPM rating. | Used where higher surge margin is required (e.g., outdoor AC/DC front ends), but requires larger PCB footprint. | Choose SMCJ150AHE3/52 only when 1500 W surge capability is mandatory; SMBJ150CHE3/52 offers optimal size/power balance for space-constrained boards. |
Compared with SMBJ150AHE3/52, the SMBJ150CHE3/52 is identical in performance and qualification-only differing in reel packaging notation. Against SMCJ150AHE3/52, it trades 2.5× peak power for 35 % smaller footprint, making it preferred for compact automotive ECUs and portable industrial controllers.
Availability
SMBJ150CHE3/52 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply, AEC-Q101 compliance, and consistent clamping performance across production lots.
Supply support for SMBJ150CHE3/52 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, precision, and automotive-grade validation.
The SMBJ series was developed specifically for high-reliability transient suppression in automotive, industrial, and telecom infrastructure-balancing compact SMB packaging with AEC-Q101 qualification and 600 W surge capability.
FAQ
What is the clamping voltage of SMBJ150CHE3/52 at its rated peak pulse current?
The SMBJ150CHE3/52 has a maximum clamping voltage (VC) of 243 V at 2.5 A peak pulse current (IPPM), measured using the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during a 600 W transient event and is confirmed in the Vishay datasheet revision 09-Jan-2024, page 2.
Is SMBJ150CHE3/52 qualified for automotive applications?
Yes, SMBJ150CHE3/52 is AEC-Q101 qualified, as indicated by the "HE3" suffix in its part number. This certification covers stress tests including temperature cycling, humidity bias HAST, and mechanical shock-validating its use in automotive powertrain, body electronics, and infotainment systems per Vishay's qualification report referenced in document 88392.
What does the "/52" suffix mean in SMBJ150CHE3/52?
The "/52" suffix in SMBJ150CHE3/52 specifies the packaging configuration: 750 pieces per 7-inch diameter plastic tape-and-reel. This is a standard ordering code defined in Vishay's ordering information table (page 3 of document 88392) and does not affect electrical or thermal performance of the SMBJ150CHE3/52 device itself.
How does SMBJ150CHE3/52 differ from bidirectional variants like SMBJ150CA?
SMBJ150CHE3/52 is unidirectional, with polarity marked by a cathode band and intended for DC line protection where reverse conduction must be blocked. In contrast, SMBJ150CA is bidirectional, symmetrical in both directions, and used in AC-coupled or floating signal lines. Their VBR, VC, and PPPM ratings differ slightly due to internal structure-SMBJ150CHE3/52 is not a drop-in replacement for SMBJ150CA.
What is the maximum reverse leakage current for SMBJ150CHE3/52 at its stand-off voltage?
At its 150 V stand-off voltage (VWM) and TA = 25 °C, the SMBJ150CHE3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA, as specified in the Electrical Characteristics table (page 2 of document 88392). This low leakage preserves efficiency in always-on power rails and battery-backed systems.
SMBJ150CHE3/52 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:
- 268V
- Current - Peak Pulse (10/1000µs):
- 2.2A
- 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)
SMBJ150CHE3/52 FAQ
1.How can I place an order for SMBJ150CHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ150CHE3/52 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 SMBJ150CHE3/52 reliable?
The price and inventory of SMBJ150CHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ150CHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ150CHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ150CHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ150CHE3/52?
SMBJ150CHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ150CHE3/52 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 SMBJ150CHE3/52?
For technical support, including SMBJ150CHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ150CHE3/52 requirements.
6.How does Aetrix verify that SMBJ150CHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ150CHE3/52 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 SMBJ150CHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ150CHE3/52?
All SMBJ150CHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ150CHE3/52, 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 SMBJ150CHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ150CHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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