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Vishay General Semiconductor - Diodes Division TPSMC27AHE3/9AT
- Part No.:
- TPSMC27AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC27AHE3/9AT.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,614
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Product details
Overview
TPSMC27AHE3/9AT from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in automotive and industrial power rails. It features a 27 V breakdown voltage (VBR = 25.7–28.4 V at 1 mA), 1500 W peak pulse power (10/1000 µs), and clamps to 37.5 V at 40 A, operating up to +185 °C junction temperature.
For engineers reviewing the TPSMC27AHE3/9AT datasheet, TPSMC27AHE3/9AT pinout, TPSMC27AHE3/9AT application, or TPSMC27AHE3/9AT equivalent, this device is selected for robust overvoltage protection on 24 V DC systems, MOSFET gate drivers, and automotive sensor supply lines where AEC-Q101 qualification, low clamping voltage, and high-temperature reliability are critical.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable breakdown characteristics across temperature. Its unidirectional polarity enables forward-biased operation during positive transients while blocking reverse leakage below 23.1 V stand-off voltage (VWM).
The device is rated for 200 A non-repetitive surge current (8.3 ms half-sine) and exhibits low incremental surge resistance, ensuring predictable clamping behavior under fast-rising transients such as load dump or inductive switching events in automotive ECUs and industrial motor controls.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 25.7 V / 27.0 V / 28.4 V at 1 mA - defines precise voltage threshold for avalanche conduction onset |
| VWM | 23.1 V - maximum continuous reverse working voltage before significant leakage begins |
| VC @ IPPM | 37.5 V at 40.0 A - clamping voltage limiting downstream circuit stress during 10/1000 µs surge |
| PPPM | 1500 W - peak pulse power handling capability per standard 10/1000 µs waveform |
| TJ max. | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| IR @ VWM | 1.0 µA - ultra-low reverse leakage preserves system standby power integrity |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal requirement |
Pinout & Package
Package: SMC (DO-214AB), molded case with matte tin-plated leads, cathode indicated by color band. Mounting requires 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal for rated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during reverse-biased clamping | Connected to protected line (e.g., 24 V rail); conducts surge current toward ground when VIN exceeds VBR |
| Cathode | Current exit point during clamping; marked with band | Connected to system ground or low-impedance return path; establishes unidirectional conduction direction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47 |
| Junction passivation optimized design | Stable VBR drift < ±5 % over lifetime at 150 °C, supporting long-term field deployment |
| 1500 W peak pulse power (10/1000 µs) | Withstands ISO 7637-2 Pulse 5a (load dump) without degradation in 24 V systems |
| Low incremental surge resistance | Ensures minimal voltage overshoot during fast transients (< 1 ns response time), protecting sensitive gate oxides |
| MSL Level 1 (260 °C reflow) | Compatible with standard lead-free SMT assembly processes without moisture sensitivity concerns |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting 24 V supply inputs of engine control units (ECUs) against ISO 7637-2 load dump transients up to 60 V. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery rail and DC-DC converter input. Use Value: Limits transient voltage to ≤37.5 V at 40 A, preventing damage to downstream LDOs and microcontrollers rated for 36 V absolute maximum. | Use Scenario: Safeguarding gate driver ICs in 3-phase inverter stages from Miller-induced voltage spikes during IGBT switching. IC Role / Device Role / Timing Role: Fast-response clamping element across high-side gate-to-source terminals. Use Value: Sub-1 ns response time and 37.5 V clamping prevent false turn-on and gate oxide rupture in 600 V IGBT modules. |
| Sensor Signal Line Protection | Telecom DC Power Interface |
Use Scenario: Shielding analog output lines of pressure/temperature sensors in harsh factory environments from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage (1.0 µA) unidirectional TVS placed at sensor PCB edge connector. Use Value: Maintains signal integrity with <1 pF junction capacitance at zero bias, avoiding bandwidth reduction in 10 kHz sensor outputs. | Use Scenario: Overvoltage protection on -48 V telecom power feeds entering base station equipment cabinets. IC Role / Device Role / Timing Role: Primary surge suppression device upstream of DC-DC converters and hot-swap controllers. Use Value: 185 °C TJ rating ensures uninterrupted operation in sealed outdoor cabinets reaching 85 °C ambient with internal self-heating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A | Lower PPPM (400 W), higher VC (45.4 V at 8.8 A), same SMC package | Not AEC-Q101 qualified; limited to commercial/industrial use | Select only if surge energy is ≤400 W and automotive qualification is not required |
| TPSMC27AHE3/52T | Identical electrical specs; differs only in tape-and-reel packaging (3500 pcs vs. 850 pcs per reel) | No functional difference; identical performance and qualification | Choose based on production volume and assembly line feed requirements |
Compared with SMAJ28A and TPSMC27AHE3/52T, the TPSMC27AHE3/9AT delivers certified automotive reliability, 1500 W surge capacity, and tighter VBR tolerance - making it the sole choice for safety-critical 24 V rail protection where load dump immunity and long-term thermal stability are mandatory.
Availability
TPSMC27AHE3/9AT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial motor drives, sensor interface modules, and telecom power distribution systems requiring stable component supply and AEC-Q101 compliance.
Supply support for TPSMC27AHE3/9AT 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, high-temperature, and automotive-qualified components.
The TPSMC series is engineered specifically for demanding transient suppression in automotive power systems and industrial equipment, combining AEC-Q101 qualification, 185 °C operation, and 1500 W pulse capability in the compact SMC package.
FAQ
What is the breakdown voltage range of the TPSMC27AHE3/9AT?
The TPSMC27AHE3/9AT has a guaranteed breakdown voltage (VBR) range of 25.7 V to 28.4 V at 1 mA test current, with a nominal value of 27.0 V. This tight tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage margin design in 24 V systems where the TPSMC27AHE3/9AT is commonly deployed.
Is the TPSMC27AHE3/9AT AEC-Q101 qualified?
Yes, the TPSMC27AHE3/9AT is AEC-Q101 qualified. The HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction per Vishay's ordering nomenclature. This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD, confirming suitability for automotive under-hood and chassis applications.
What is the maximum clamping voltage of the TPSMC27AHE3/9AT at rated surge current?
The TPSMC27AHE3/9AT clamps to a maximum of 37.5 V at its rated peak pulse current of 40.0 A (10/1000 µs waveform). This clamping voltage is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuits during worst-case surge events, directly enabling compatibility with 36 V-rated downstream ICs.
Does the TPSMC27AHE3/9AT support lead-free reflow soldering?
Yes, the TPSMC27AHE3/9AT meets MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C. Its matte tin-plated leads are solderable per J-STD-002 and JESD22-B102, and the HE3 suffix confirms compliance with lead-free assembly requirements for both RoHS and automotive manufacturing environments.
What is the thermal derating behavior of the TPSMC27AHE3/9AT above 25 °C ambient?
The TPSMC27AHE3/9AT follows standard thermal derating per Figure 2 in its datasheet: peak pulse power decreases linearly above 25 °C ambient, reaching ~50 % of rated 1500 W at ~125 °C case temperature. This behavior is enabled by its 185 °C maximum junction temperature rating, allowing sustained operation in high-ambient industrial enclosures when properly heatsinked.
TPSMC27AHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- 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):
- 40A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
TPSMC27AHE3/9AT FAQ
1.How can I place an order for TPSMC27AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC27AHE3/9AT 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 TPSMC27AHE3/9AT reliable?
The price and inventory of TPSMC27AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC27AHE3/9AT is usually 5 days.
3.What payment methods are accepted for TPSMC27AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC27AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC27AHE3/9AT?
TPSMC27AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC27AHE3/9AT 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 TPSMC27AHE3/9AT?
For technical support, including TPSMC27AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC27AHE3/9AT requirements.
6.How does Aetrix verify that TPSMC27AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All TPSMC27AHE3/9AT 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 TPSMC27AHE3/9AT meets industry standards.
7.What is the process for return or replacement of TPSMC27AHE3/9AT?
All TPSMC27AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC27AHE3/9AT, 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 TPSMC27AHE3/9AT part is unused and in its original packaging.
Return procedure for TPSMC27AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC27AHE3/9AT Tags
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