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Vishay General Semiconductor - Diodes Division TPC22AHM3/87A
- Part No.:
- TPC22AHM3/87A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC22AHM3/87A.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:3,914
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Product details
Overview
TPC22AHM3/87A 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 20.9–23.1 V at 1 mA, clamping voltage of 30.6 V at 49.0 A peak pulse current, and operates up to +185 °C junction temperature.
For engineers reviewing the TPC22AHM3/87A datasheet, TPC22AHM3/87A pinout, TPC22AHM3/87A application, or TPC22AHM3/87A equivalent, key selection criteria include its AEC-Q101 qualification, low-profile 1.1 mm height, MSL Level 1 rating, and suitability for protecting MOSFETs, sensor signal lines, and ICs against inductive switching transients.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of 10/1000 µs waveform transients. Its unidirectional polarity and junction temperature capability up to +185 °C support deployment in under-hood automotive environments and high-temperature industrial control systems.
The device is rated for 200 A non-repetitive forward surge current (8.3 ms half-sine), with maximum forward voltage of 3.5 V at 100 A, and exhibits a typical VBR temperature coefficient of +0.084 %/°C - critical for stable clamping performance across thermal operating ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 20.9 / 22.0 / 23.1 V at 1 mA - defines precise voltage threshold where avalanche conduction begins |
| VWM | 18.8 V - maximum continuous reverse working voltage before leakage exceeds 1 µA |
| VC @ IPPM | 30.6 V at 49.0 A - clamping voltage during 10/1000 µs surge, limiting downstream component stress |
| PPPM | 1500 W - peak pulse power handling capacity under standardized transient conditions |
| TJ max. | +185 °C - enables operation in high-temperature automotive and industrial enclosures without derating |
| Package | SMPC (TO-277A) - surface-mount, low-profile (1.1 mm height), AEC-Q101 qualified, MSL Level 1 |
| Leakage @ VWM | ≤1.0 µA at 25 °C - ensures minimal standby power loss and signal integrity in high-impedance circuits |
Pinout & Package
TPC22AHM3/87A is housed in a 3-terminal SMPC (TO-277A) package with cathode band marking on terminal 1. The package features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards, and meets JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Anode-side reference node | Connected to protected circuit's positive rail; forms cathode connection for unidirectional clamping path |
| 2 (Cathode) | Common cathode node | Internally tied to Pin 1; dual-cathode configuration enhances current sharing and thermal distribution |
| 3 (Anode) | Ground reference node | Connected to system ground or low-impedance return path; completes transient current loop during clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| Junction passivation | Optimized die surface passivation reduces leakage drift and improves long-term stability under thermal stress |
| Low profile (1.1 mm height) | Enables use in space-constrained modules such as engine control units and ADAS sensor housings |
| MSL Level 1 | Zero floor life limitation - can be stored indefinitely before reflow without baking preconditioning |
| Halogen-free & RoHS-compliant | Meets global environmental compliance requirements for automotive and industrial OEM supply chains |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive Interface |
|---|---|
Use Scenario: Protection of microcontroller I/O pins and CAN transceiver power rails against load dump and alternator ripple transients in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between power input and ground, responding within nanoseconds to suppress >100 V spikes. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic interfaces while maintaining <1 µA leakage at 18.8 V nominal battery voltage. | Use Scenario: Safeguarding gate drivers and position feedback sensors (e.g., Hall-effect, encoder) from inductive kickback during PWM-controlled motor commutation. IC Role / Device Role / Timing Role: Transient shunt connected across motor phase outputs and controller supply rails to divert surge energy away from sensitive analog front-ends. Use Value: Clamps 49 A surges to ≤30.6 V, preserving signal integrity on 24 V DC bus interfaces and extending sensor lifetime in harsh factory environments. |
| Telecom Power Supply Input | Automotive Camera Module ESD Protection |
Use Scenario: Secondary-level surge protection on AC/DC converter outputs feeding PoE-powered network equipment, guarding against line-induced transients. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after primary MOV-based protection to handle residual fast-rising edges not absorbed upstream. Use Value: Provides precise 18.8 V working voltage margin above 15 V nominal output, ensuring no false triggering during normal regulation. | Use Scenario: Front-end protection of FAKRA or HSD connectors in rear-view or surround-view camera modules exposed to cable discharge events and hot-swap transients. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on power and video signal lines, leveraging 1.1 mm profile to fit within tight connector housing constraints. Use Value: Delivers 1500 W peak power handling without compromising signal fidelity due to minimal parasitic capacitance and sub-ns response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | Lower PPPM (400 W), SMA package (higher profile, 2.3 mm), same VBR range but higher VC (35.5 V @ 11.3 A) | Not AEC-Q101 qualified; limited to commercial/industrial use; unsuitable for under-hood automotive | Select when cost sensitivity outweighs automotive qualification and power handling needs |
| TPC22AHE3/87A | Same electrical specs and TO-277A package; differs only in halogen-free compliance level (HM3 vs HE3 suffix denotes different revision codes) | No functional difference; identical thermal, mechanical, and electrical behavior in circuit | Prefer for legacy BOM alignment if HE3 variant already qualified in production |
Compared with SMAJ22A and TPC22AHE3/87A, the TPC22AHM3/87A uniquely combines AEC-Q101 qualification, 1500 W surge rating, and 1.1 mm profile - making it optimal for next-generation automotive ECUs and compact industrial controllers where space, reliability, and power density are jointly constrained.
Availability
TPC22AHM3/87A is available at Aetrix Electronics and suitable for automotive engine control units, industrial motor drive interfaces, and telecom power supply inputs requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for TPC22AHM3/87A 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 devices, and optoelectronics with emphasis on high-reliability, automotive-qualified components.
The TPC series is part of Vishay's PAR® transient voltage suppressor family, engineered specifically for robust protection of automotive and industrial electronics against ISO 7637-2 and IEC 61000-4-5 compliant transients.
FAQ
What is the exact breakdown voltage range for TPC22AHM3/87A?
The TPC22AHM3/87A has a guaranteed breakdown voltage (VBR) range of 20.9 V to 23.1 V at 1 mA test current, with a nominal value of 22.0 V. This specification is measured per ANSI/IEEE C62.35 and confirmed in Vishay's official datasheet document 89056, revision 19-Apr-2022. The TPC22AHM3/87A maintains this tolerance across its qualified operating temperature range.
Is TPC22AHM3/87A qualified for automotive applications?
Yes, the TPC22AHM3/87A is AEC-Q101 qualified and explicitly rated for automotive use. It meets stringent reliability requirements including temperature cycling, mechanical shock, and humidity bias testing. Its +185 °C maximum junction temperature and MSL Level 1 rating further validate its suitability for under-hood and ADAS applications - all documented in the official Vishay TPC6.8A–TPC51A datasheet.
What does the HM3/87A suffix indicate in TPC22AHM3/87A?
The HM3/87A suffix identifies the packaging and revision: "HM3" denotes halogen-free, RoHS-compliant construction in SMPC (TO-277A) package with matte tin plating, while "87A" specifies the tape-and-reel delivery format (7-inch reel, 1500 units). This matches Vishay's preferred ordering code structure defined in the datasheet's Ordering Information section.
How does TPC22AHM3/87A compare to standard SMAJ22A in terms of surge capability?
The TPC22AHM3/87A delivers 1500 W peak pulse power (PPPM) versus 400 W for SMAJ22A - a 3.75× higher surge rating. It also achieves lower clamping voltage (30.6 V vs. 35.5 V) at higher surge current (49.0 A vs. 11.3 A), and is AEC-Q101 qualified whereas SMAJ22A is not. These differences make the TPC22AHM3/87A suitable for demanding automotive and industrial surge environments where SMAJ22A would fail.
Can TPC22AHM3/87A be used in bidirectional configurations?
No, the TPC22AHM3/87A is strictly unidirectional and must be oriented with its cathode terminals (Pins 1 and 2) toward the protected line and anode (Pin 3) toward ground. Bidirectional protection requires a separate device such as the TPD22AHM3/87A or dual-diode configurations - the TPC22AHM3/87A datasheet explicitly states "Unidirection only" under Features and confirms polarity in the Electrical Characteristics table.
TPC22AHM3/87A 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):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 49A
- 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)
TPC22AHM3/87A FAQ
1.How can I place an order for TPC22AHM3/87A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC22AHM3/87A 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 TPC22AHM3/87A reliable?
The price and inventory of TPC22AHM3/87A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC22AHM3/87A is usually 5 days.
3.What payment methods are accepted for TPC22AHM3/87A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC22AHM3/87A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC22AHM3/87A?
TPC22AHM3/87A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC22AHM3/87A 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 TPC22AHM3/87A?
For technical support, including TPC22AHM3/87A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC22AHM3/87A requirements.
6.How does Aetrix verify that TPC22AHM3/87A is sourced from the original manufacturer or authorized distributors?
All TPC22AHM3/87A 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 TPC22AHM3/87A meets industry standards.
7.What is the process for return or replacement of TPC22AHM3/87A?
All TPC22AHM3/87A units undergo pre-shipment inspection (PSI). If there is an issue with TPC22AHM3/87A, 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 TPC22AHM3/87A part is unused and in its original packaging.
Return procedure for TPC22AHM3/87A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC22AHM3/87A Tags
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