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Vishay General Semiconductor - Diodes Division TPSMC27HE3_A/H
- Part No.:
- TPSMC27HE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC27HE3_A/H.pdf
- Description:
- TVS DIODE 21.8VWM 39.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,396
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Product details
Overview
TPSMC27HE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-reliability overvoltage protection of sensitive electronics. It features a 27 V nominal 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 40 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor signal lines in automotive powertrain control units.
For engineers reviewing the TPSMC27HE3_A/H datasheet, TPSMC27HE3_A/H pinout, TPSMC27HE3_A/H application, or TPSMC27HE3_A/H equivalent, key selection considerations include its AEC-Q101 qualification, 185 °C junction temperature rating, unidirectional polarity, low incremental surge resistance, and compatibility with automated SMT assembly under J-STD-020 MSL level 1 conditions.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for stable clamping under repetitive transients and high-temperature operation. Its junction design enables reliable performance up to TJ = 185 °C and meets automotive-grade reliability requirements per AEC-Q101.
The device delivers fast response time (<1 ps), excellent clamping ratio (VC/VBR ≈ 1.39), and low dynamic impedance, ensuring effective suppression of inductive switching spikes and ESD events on 12 V and 24 V automotive supply rails and sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 25.7 / 27.0 / 28.4 V at 1 mA - defines precise voltage threshold where avalanche conduction begins |
| VWM | 23.1 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 37.5 V at 40.0 A - clamped voltage during 1500 W transient, limiting stress on downstream components |
| PPPM | 1500 W (10/1000 µs) - peak power handling capacity for standardized surge immunity testing |
| TJ max. | +185 °C - enables use in under-hood automotive environments without derating |
| Polarity | Unidirectional - protects against positive-going transients only; cathode marked by band |
| Package | SMC (DO-214AB) - industry-standard SMT outline with 8.0 mm × 8.0 mm copper pad thermal requirement |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to system ground or low-impedance return plane during clamping event |
| Cathode | Protected line connection point | Connected to line being protected (e.g., 12 V rail or sensor output); marked by band |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including powertrain and body control modules |
| Junction passivation | Enhanced long-term stability under high-temperature bias and humidity exposure |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a) |
| 185 °C TJ capability | Eliminates need for thermal derating in engine bay or power converter designs |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs of ECUs and junction boxes from load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and input filter capacitor. Use Value: Limits transient voltage to ≤37.5 V during 1500 W surges, preventing damage to upstream PMICs and microcontrollers. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across signal and ground near connector entry point. Use Value: Clamps ESD (IEC 61000-4-2) and cable discharge events without distorting mV-level sensor signals. |
| Telecom DC Power Input | Consumer Power Adapter Output |
Use Scenario: Overvoltage protection on -48 V telecom rectifier outputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary TVS on secondary-side DC bus before DC/DC converters. Use Value: Withstands 200 A non-repetitive forward surge (IFSM) and maintains clamping integrity after repeated transients. |
Use Scenario: Secondary-side transient suppression on USB-C PD adapter 20 V output rails. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after synchronous rectifier and before output capacitor. Use Value: VWM = 23.1 V ensures no leakage during normal 20 V operation while clamping >30 V faults. |
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/VBR ratio (≈1.5), SMA package (smaller thermal mass) | Not AEC-Q101 qualified; limited to commercial-temperature industrial use | Select when cost and board space are critical and automotive qualification is not required |
| TPSMC27AHM3_A/H | Identical electrical specs; halogen-free molding compound (HM3 suffix vs. HE3) | Same automotive use cases; required where halogen-free compliance is mandated (e.g., EU automotive Tier 1) | Direct material substitution where RoHS + halogen-free + AEC-Q101 are all mandatory |
Compared with SMAJ28A and TPSMC27AHM3_A/H, the TPSMC27HE3_A/H provides optimal balance of 1500 W surge robustness, AEC-Q101 validation, and JEDEC-standard SMC thermal performance - making it preferred for high-reliability 12 V/24 V automotive subsystems where both qualification and power handling are non-negotiable.
Availability
TPSMC27HE3_A/H is available at Aetrix Electronics and suitable for automotive powertrain control, industrial sensor interface protection, and telecom DC power input applications requiring stable component supply, long-lifecycle availability, and traceable sourcing.
Supply support for TPSMC27HE3_A/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, TVS devices, and optoelectronics with emphasis on reliability and high-temperature performance.
The TPSMC series was developed specifically for automotive and industrial transient suppression, targeting AEC-Q101 compliance, 185 °C operation, and high-power 10/1000 µs surge immunity in compact SMC packages.
FAQ
What is the breakdown voltage tolerance for TPSMC27HE3_A/H?
The TPSMC27HE3_A/H has a specified breakdown voltage range of 25.7 V to 28.4 V at 1 mA test current, per the Vishay datasheet revision 19-Jan-2024. This ±5% tolerance ensures consistent clamping behavior across production lots and supports robust design margining for 24 V automotive systems. The nominal VBR of 27.0 V is used for typical circuit analysis of the TPSMC27HE3_A/H.
Is TPSMC27HE3_A/H suitable for bidirectional transient protection?
No, the TPSMC27HE3_A/H is unidirectional only, as confirmed in the Vishay datasheet's FEATURES section. It protects against positive transients on the cathode side relative to anode ground. For bidirectional protection, a separate device such as the SMBJ26CA or a back-to-back configuration would be required - the TPSMC27HE3_A/H does not support reverse-polarity surge suppression.
Does TPSMC27HE3_A/H meet AEC-Q101 requirements?
Yes, the TPSMC27HE3_A/H is explicitly AEC-Q101 qualified, as stated in the "FEATURES" section and "ORDERING INFORMATION" table of the Vishay datasheet (Doc. #88407). The HE3 suffix denotes RoHS-compliant and AEC-Q101 qualified construction, making the TPSMC27HE3_A/H appropriate for automotive applications including engine control, ADAS, and body electronics.
What is the maximum clamping voltage of TPSMC27HE3_A/H at rated surge current?
The TPSMC27HE3_A/H exhibits a maximum clamping voltage (VC) of 37.5 V at 40.0 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuits during worst-case transients - a critical parameter for validating safe operation of downstream ICs in the TPSMC27HE3_A/H-protected system.
Can TPSMC27HE3_A/H be used in lead-free reflow processes?
Yes, the TPSMC27HE3_A/H is rated for MSL level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C, fully compatible with standard lead-free soldering profiles. Its matte tin-plated terminals meet J-STD-002 and JESD 22-B102 requirements, and the HE3 suffix confirms qualification for high-temperature SMT assembly - essential for reliable manufacturing of the TPSMC27HE3_A/H.
TPSMC27HE3_A/H 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):
- 21.8V
- Voltage - Breakdown (Min):
- 24.3V
- Voltage - Clamping (Max) @ Ipp:
- 39.1V
- Current - Peak Pulse (10/1000µs):
- 38.4A
- 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)
TPSMC27HE3_A/H FAQ
1.How can I place an order for TPSMC27HE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC27HE3_A/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 TPSMC27HE3_A/H reliable?
The price and inventory of TPSMC27HE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC27HE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMC27HE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC27HE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC27HE3_A/H?
TPSMC27HE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC27HE3_A/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 TPSMC27HE3_A/H?
For technical support, including TPSMC27HE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC27HE3_A/H requirements.
6.How does Aetrix verify that TPSMC27HE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMC27HE3_A/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 TPSMC27HE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMC27HE3_A/H?
All TPSMC27HE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC27HE3_A/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 TPSMC27HE3_A/H part is unused and in its original packaging.
Return procedure for TPSMC27HE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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