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Vishay General Semiconductor - Diodes Division TPC27HM3/87A
- Part No.:
- TPC27HM3/87A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC27HM3/87A.pdf
- Description:
- TVS DIODE 21.8VWM 39.1VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:5,539
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Product details
Overview
TPC27HM3/87A from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in SMPC (TO-277A) package, designed for high-reliability automotive and industrial electronics protection. It features a breakdown voltage of 25.7–28.4 V at 1 mA, clamping voltage of 37.5 V at 40 A peak pulse current, and operates up to +185 °C junction temperature.
For engineers reviewing the TPC27HM3/87A datasheet, TPC27HM3/87A pinout, TPC27HM3/87A application, or TPC27HM3/87A equivalent, key selection criteria include unidirectional surge clamping performance, AEC-Q101 qualification, low-profile 1.1 mm height, and compatibility with automated SMT placement on power rails and sensor interfaces.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable breakdown behavior and low incremental surge resistance. Its 10/1000 μs waveform rating supports robust protection against inductive switching transients and ESD events in automotive power domains.
The device is rated for 200 A non-repetitive forward surge current (8.3 ms half-sine), exhibits 3.5 V maximum forward voltage at 100 A, and maintains clamping integrity across -65 °C to +185 °C operating junction temperature range - meeting stringent automotive thermal requirements.
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 where avalanche conduction begins |
| VWM | 23.1 V - maximum continuous reverse working voltage before leakage exceeds 1 μA |
| VC @ IPPM | 37.5 V at 40.0 A - clamping voltage during 1500 W transient, limiting downstream IC stress |
| PPPM | 1500 W - peak pulse power handling capability per 10/1000 μs waveform |
| TJ max | +185 °C - enables operation in under-hood automotive environments without derating |
| Package | SMPC (TO-277A) - 3-terminal surface-mount package with cathode band marking and 1.1 mm profile |
| AEC-Q101 | Qualified - certified for automotive-grade reliability per stress test standard |
Pinout & Package
TPC27HM3/87A is housed in the SMPC (TO-277A) package: a 3-terminal, low-profile surface-mount case with cathode band marking on terminal 1 and 2, and anode on terminal 3. Dimensions conform to JEDEC TO-277A standard (4.80 × 4.40 × 1.10 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Transient current sink path | Connected to protected line; conducts surge current to ground when VWM exceeded |
| 2 (Cathode) | Parallel cathode connection | Internally tied to Pin 1; doubles current-handling capacity and improves thermal distribution |
| 3 (Anode) | Reference/ground return | Connected to system ground; completes clamping loop during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Stable VBR tolerance (±5 %) and low leakage (<1 μA at VWM) across temperature and lifetime |
| MSL Level 1 compliance | Unlimited floor life at ≤30 °C/60 % RH - eliminates bake requirement prior to reflow |
| Matte tin-plated terminals | Solderable per J-STD-002 and JESD 22-B102 - ensures reliable wetting and joint strength in lead-free reflow |
| Halogen-free & RoHS-compliant | Meets environmental regulations without compromising surge robustness or thermal performance |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V CAN bus power lines and LIN transceivers from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between battery rail and DC-DC input stage. Use Value: Limits transient voltage to ≤37.5 V during 40 A surges, preventing damage to downstream PMICs and microcontrollers. | Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Standoff protector on signal conditioning path, absorbing ESD and inductive kickback from solenoid drivers. Use Value: Maintains <1 μA leakage at 23.1 V, preserving signal integrity while surviving 1500 W pulses per IEC 61000-4-5. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding 48 V PoE-powered equipment inputs from lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: Primary clamping device on primary-side DC input, upstream of isolation barrier. Use Value: Clamps within nanoseconds to 37.5 V, enabling use with 50 V-rated capacitors and reducing need for secondary-stage TVS. | Use Scenario: Guarding BLDC motor driver gate supplies against back-EMF spikes in smart HVAC and washing machine inverters. IC Role / Device Role / Timing Role: Rail clamp on 12–24 V logic supply feeding gate drivers and current sense amplifiers. Use Value: Withstands 200 A 8.3 ms surge, protecting sensitive analog components without degradation after repeated motor commutation events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A | Lower PPPM (400 W), SMA package (higher thermal resistance), VC = 45.4 V at 8.8 A | Not AEC-Q101 qualified; limited to commercial/industrial use | Choose for cost-sensitive non-automotive designs where 1500 W surge margin is not required |
| TPC27HM3/87A | Same family, identical electrical specs - HM3/87A denotes halogen-free, RoHS, AEC-Q101, MSL-1 variant | Direct replacement within Vishay's TPC27A series with enhanced reliability attributes | Select when automotive qualification, low-profile mounting, and high-energy clamping are mandatory |
Compared with SMAJ28A and other legacy SMA TVS diodes, TPC27HM3/87A delivers 3.75× higher peak power rating, 1.1 mm profile for space-constrained layouts, and guaranteed AEC-Q101 compliance - making it suitable for next-generation automotive and industrial power protection where thermal and reliability margins are critical.
Availability
TPC27HM3/87A 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 and long-term lifecycle support.
Supply support for TPC27HM3/87A 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, MOSFETs, and optoelectronics with emphasis on reliability and application-specific performance.
The TPC series was developed specifically for high-energy, high-temperature transient suppression in automotive and industrial systems - combining AEC-Q101 qualification, low-profile packaging, and precise clamping control.
FAQ
What is the exact breakdown voltage range for TPC27HM3/87A?
The TPC27HM3/87A has a guaranteed breakdown voltage range of 25.7 V to 28.4 V at 1 mA test current, with nominal value of 27.0 V. This range is measured per ANSI/IEEE C62.35 and confirmed across production lots. The TPC27HM3/87A maintains this specification over its full operating temperature range (-65 °C to +185 °C) with a temperature coefficient of +0.087 %/°C.
Is TPC27HM3/87A suitable for 24 V automotive systems?
Yes, TPC27HM3/87A is explicitly designed for 24 V automotive applications. Its 23.1 V standoff voltage (VWM) provides adequate margin above nominal 24 V rail, while its 37.5 V clamping voltage at 40 A ensures downstream components remain within safe operating limits during load-dump events. The AEC-Q101 qualification and +185 °C junction rating further confirm suitability for under-hood deployment in TPC27HM3/87A-based designs.
Does TPC27HM3/87A have dual cathode terminals for current sharing?
Yes, TPC27HM3/87A features two cathode terminals (Pins 1 and 2) internally connected to increase surge current handling and improve thermal dissipation. This dual-cathode configuration allows the device to sustain higher peak pulse currents without localized heating, directly supporting its 1500 W PPPM rating and 200 A IFSM capability. The layout is standardized in the TO-277A outline.
What is the meaning of the "HM3/87A" suffix in TPC27HM3/87A?
The "HM3/87A" suffix in TPC27HM3/87A indicates halogen-free, RoHS-compliant construction (HM3), AEC-Q101 qualification, and revision code "A". The "87A" denotes the specific tape-and-reel packaging variant per Vishay's ordering nomenclature - confirming compliance with JESD201 Class 2 whisker testing and matte tin plating per J-STD-002. This suffix distinguishes it from non-automotive variants like TPC27A.
Can TPC27HM3/87A replace older SMAJ28A in existing PCB layouts?
No, TPC27HM3/87A cannot be used as a drop-in replacement for SMAJ28A due to different package footprints: TPC27HM3/87A uses SMPC (TO-277A), while SMAJ28A uses SMA. Although both are unidirectional TVS diodes with similar VBR, the TPC27HM3/87A requires updated land pattern, stencil design, and reflow profile validation. Its superior 1500 W rating and AEC-Q101 status justify redesign where enhanced protection is needed.
TPC27HM3/87A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- TO-277, 3-PowerDFN
- Series:
- PAR®, eSMP®
- 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:
- TO-277A (SMPC)
TPC27HM3/87A FAQ
1.How can I place an order for TPC27HM3/87A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC27HM3/87A 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 TPC27HM3/87A reliable?
The price and inventory of TPC27HM3/87A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC27HM3/87A is usually 5 days.
3.What payment methods are accepted for TPC27HM3/87A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC27HM3/87A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC27HM3/87A?
TPC27HM3/87A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC27HM3/87A 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 TPC27HM3/87A?
For technical support, including TPC27HM3/87A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC27HM3/87A requirements.
6.How does Aetrix verify that TPC27HM3/87A is sourced from the original manufacturer or authorized distributors?
All TPC27HM3/87A 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 TPC27HM3/87A meets industry standards.
7.What is the process for return or replacement of TPC27HM3/87A?
All TPC27HM3/87A units undergo pre-shipment inspection (PSI). If there is an issue with TPC27HM3/87A, 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 TPC27HM3/87A part is unused and in its original packaging.
Return procedure for TPC27HM3/87A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC27HM3/87A Tags
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