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Vishay General Semiconductor - Diodes Division TPSMB27A61HE3J/5BT
- Part No.:
- TPSMB27A61HE3J/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB27A61HE3J/5BT.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPSMB27A61HE3J/5BT from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching surges and lightning-induced transients on power rails and signal lines. It features a 27 V breakdown voltage (VBR = 25.7–28.4 V at 1 mA), 23.1 V stand-off voltage (VWM), 37.5 V maximum clamping voltage (VC) at 16 A peak pulse current, 600 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - suitable for automotive power rail protection in engine control units.
For engineers reviewing the TPSMB27A61HE3J/5BT datasheet, TPSMB27A61HE3J/5BT pinout, TPSMB27A61HE3J/5BT application, or TPSMB27A61HE3J/5BT equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, clamping performance under 10/1000 µs surge, and thermal derating above 25 °C ambient.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with optimized junction passivation for stable high-temperature operation. Its unidirectional architecture provides low dynamic impedance during clamping and fast response time (<1 ns) to transient events.
The device is rated for 75 A non-repetitive forward surge current (8.3 ms half-sine), exhibits 0.087 %/°C temperature coefficient of VBR, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak - confirming suitability for automated SMT assembly in automotive-grade production.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 25.7–28.4 V at 1 mA - defines precise clamping initiation threshold for overvoltage detection |
| Stand-off Voltage VWM | 23.1 V - maximum continuous reverse voltage before leakage exceeds 1 µA, ensuring no false triggering |
| Clamping Voltage VC | 37.5 V at 16 A (10/1000 µs) - limits downstream IC voltage stress during surge events |
| Peak Pulse Power PPPM | 600 W (10/1000 µs waveform) - supports robust transient energy absorption without failure |
| Junction Temperature Range | −65 °C to +185 °C - enables deployment in under-hood automotive environments |
| AEC-Q101 Qualified | Yes - validated for automotive reliability including temperature cycling, HTRB, and ESD |
| Package | SMB (DO-214AA) - industry-standard 2-pin surface-mount outline with cathode band marking |
Pinout & Package
TPSMB27A61HE3J/5BT uses the SMB (DO-214AA) package: molded plastic case with matte tin-plated leads, 0.220" × 0.130" footprint, cathode indicated by a color band. Mounting requires 5.0 mm × 5.0 mm copper pads per terminal per Vishay's thermal derating guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction or clamping | Connected to protected circuit ground or low-side return path; determines unidirectional clamping direction |
| Cathode | Current exit point during clamping; marked by color band | Connected to protected line (e.g., 24 V rail); reverse-biased during normal operation, avalanches during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 185 °C Junction Rating | Enables reliable operation in high-ambient automotive locations (e.g., power distribution modules) |
| 600 W Peak Pulse Power | Withstands ISO 7637-2 Pulse 1/2a/5a transients without degradation when properly mounted |
| AEC-Q101 Qualification (HE3 suffix) | Confirms compliance with automotive stress tests including HTGB, H3TRB, and temperature cycling |
| Low Clamping Ratio (VC/VWM ≈ 1.62) | Minimizes overvoltage margin between operating and clamping thresholds for tighter system protection |
| MSL Level 1 Reflow Compatibility | Supports lead-free reflow up to 260 °C peak without popcorn or delamination risk |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: Protecting 24 V supply inputs in engine control units (ECUs) against load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between power rail and chassis ground. Use Value: Limits transient voltage to ≤37.5 V during 16 A surges, preventing damage to MCU power management ICs and CAN transceivers. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) in industrial pressure sensors exposed to ESD and field wiring faults. IC Role / Device Role / Timing Role: Standby-mode reverse-biased protector on sensor output node. Use Value: Maintains <1 µA leakage at 23.1 V while clamping 8 kV contact ESD to <40 V, preserving signal integrity. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters for smart home hubs subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response clamp on regulated 12 V output rail. Use Value: Responds in <1 ns to 10/1000 µs transients, limiting voltage overshoot to protect USB-PD controllers and PMICs. |
Use Scenario: DC power feed line protection in remote radio head (RRH) base stations powered via -48 V telecom supply. IC Role / Device Role / Timing Role: Unidirectional surge suppressor on -48 V input before DC/DC conversion. Use Value: Withstands repetitive 600 W surges per IEC 61000-4-5 Level 4 while maintaining 185 °C operational capability in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Lower VBR (22.8–25.2 V), lower PPPM (400 W), same SMB package | Rated for less severe transients; not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification and 600 W surge requirement |
| SMCJ27A | Same VBR range, higher PPPM (1500 W), larger SMC (DO-214AB) package | Requires PCB layout change; better for high-energy industrial surges | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 4 and board space allows SMC footprint |
Compared with SMAJ24A and SMCJ27A, the TPSMB27A61HE3J/5BT uniquely balances AEC-Q101 qualification, 600 W capability, and SMB footprint - making it optimal for space-constrained automotive modules where qualification and thermal robustness are mandatory.
Availability
TPSMB27A61HE3J/5BT is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, consumer power adapters, and telecom DC feeder systems requiring stable component supply across extended temperature and high-reliability environments.
Supply support for TPSMB27A61HE3J/5BT 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 high-reliability and automotive-grade solutions.
The TPSMB series belongs to Vishay's PAR® transient voltage suppressor product line, engineered specifically for high-temperature stability and AEC-Q101-compliant surge protection in automotive power systems and industrial controls.
FAQ
What is the exact breakdown voltage range for TPSMB27A61HE3J/5BT?
The TPSMB27A61HE3J/5BT has a guaranteed breakdown voltage (VBR) range of 25.7 V to 28.4 V at 1 mA test current, measured per ANSI/IEEE C62.35. This range ensures consistent clamping behavior across production lots and supports design margining for automotive 24 V systems where nominal rail can reach 28 V during load dump.
Is TPSMB27A61HE3J/5BT AEC-Q101 qualified?
Yes, TPSMB27A61HE3J/5BT is AEC-Q101 qualified - confirmed by its HE3 suffix per Vishay's ordering nomenclature and documentation (Doc. #88406). The qualification covers temperature cycling, high-temperature reverse bias (HTRB), and humidity testing, validating its use in automotive powertrain and body electronics applications.
What does the "61" in TPSMB27A61HE3J/5BT signify?
The "61" in TPSMB27A61HE3J/5BT is a revision code denoting the specific manufacturing lot or process iteration, consistent with Vishay's naming convention where "_X" (e.g., A, B, 61) indicates revision level. It does not alter electrical specifications but reflects traceability and process control updates per internal Vishay release tracking.
Can TPSMB27A61HE3J/5BT be used in bidirectional configurations?
No, TPSMB27A61HE3J/5BT is unidirectional only, as explicitly stated in the Vishay datasheet. It conducts only in reverse avalanche mode and must be oriented with cathode toward the protected line. For bidirectional protection, a separate device such as TPSMB27CA or dual-series configuration is required.
What is the maximum clamping voltage of TPSMB27A61HE3J/5BT at rated surge current?
The TPSMB27A61HE3J/5BT clamps to a maximum of 37.5 V at 16 A peak pulse current (10/1000 µs waveform), per the Electrical Characteristics table in Vishay Doc. #88406. This value is critical for verifying that downstream components remain within their absolute maximum voltage ratings during surge events.
TPSMB27A61HE3J/5BT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 16A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
TPSMB27A61HE3J/5BT FAQ
1.How can I place an order for TPSMB27A61HE3J/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB27A61HE3J/5BT 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 TPSMB27A61HE3J/5BT reliable?
The price and inventory of TPSMB27A61HE3J/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB27A61HE3J/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB27A61HE3J/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB27A61HE3J/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB27A61HE3J/5BT?
TPSMB27A61HE3J/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB27A61HE3J/5BT 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 TPSMB27A61HE3J/5BT?
For technical support, including TPSMB27A61HE3J/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB27A61HE3J/5BT requirements.
6.How does Aetrix verify that TPSMB27A61HE3J/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB27A61HE3J/5BT 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 TPSMB27A61HE3J/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB27A61HE3J/5BT?
All TPSMB27A61HE3J/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB27A61HE3J/5BT, 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 TPSMB27A61HE3J/5BT part is unused and in its original packaging.
Return procedure for TPSMB27A61HE3J/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB27A61HE3J/5BT Tags
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