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Vishay General Semiconductor - Diodes Division TPC22AHM3_A/I
- Part No.:
- TPC22AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC22AHM3_A/I.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:4,133
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Product details
Overview
TPC22AHM3_A/I from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in TO-277A (SMPC) 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 A peak pulse current, and operates up to +185 °C junction temperature.
For engineers reviewing the TPC22AHM3_A/I datasheet, TPC22AHM3_A/I pinout, TPC22AHM3_A/I application, or TPC22AHM3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, low-profile 1.1 mm height, MSL Level 1 rating, and suitability for protecting MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning surges.
Technical Context
The TPC22AHM3_A/I employs passivated anisotropic rectifier technology optimized for fast response time and low incremental surge resistance. Its unidirectional architecture enables robust forward conduction during overvoltage events while maintaining tight clamping performance under 10/1000 μs waveform conditions.
Rated for TJ = −65 °C to +185 °C, it supports automotive-grade thermal reliability and meets JESD201 Class 2 whisker resistance. The device is characterized with 1.0 mA test current for VBR, 1.0 μA IR at VWM, and 300 μs pulse width for clamping validation per ANSI/IEEE C62.35.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 20.9 V / 23.1 V at 1.0 mA - defines precise reverse breakdown threshold for reliable triggering |
| VWM | 18.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 30.6 V at 49.0 A - clamping voltage limits downstream circuit stress during 10/1000 μs surge |
| PPPM | 1500 W - peak pulse power handling capability under standardized transient waveform |
| TJ max | +185 °C - enables operation in under-hood automotive and high-temperature industrial environments |
| Package | TO-277A (SMPC) - surface-mount, low-profile (1.1 mm typical height), AEC-Q101 qualified |
| Surge Current IFSM | 200 A - withstands 8.3 ms half-sine surge without degradation |
Pinout & Package
TO-277A (SMPC) package: 3-terminal surface-mount configuration with cathode-anode-cathode layout; matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Cathode | Reverse-biased terminal connected to protected line; forms primary clamping path with Terminal 3 |
| Terminal 2 | Anode | Common reference node tied to ground or system return; enables bidirectional cathode symmetry |
| Terminal 3 | Cathode | Second cathode terminal - electrically identical to Terminal 1; allows dual-point connection for lower inductance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Junction temperature rating | +185 °C maximum - supports placement near heat sources in engine control units and power modules |
| Low profile height | 1.1 mm typical - enables use in space-constrained PCB layouts and automated SMT assembly |
| MSL Level 1 | No floor life limitation - eliminates bake requirements prior to reflow soldering |
| Halogen-free & RoHS-compliant | HM3 suffix indicates compliance with environmental regulations and JEDEC JESD201 whisker resistance Class 2 |
Applications
| Automotive Powertrain ECUs | Industrial Motor Drive Control Boards |
|---|---|
Use Scenario: Protection of 24 V CAN bus transceivers and microcontroller I/O pins against load dump and alternator ripple. IC Role / Device Role: Unidirectional TVS clamp placed between signal line and ground to limit transient overvoltage. Use Value: Clamps 30.6 V at 49 A, preventing latch-up or gate oxide damage in 3.3 V/5 V logic interfaces. |
Use Scenario: Safeguarding gate drivers and current-sense amplifiers from inductive kickback during IGBT switching. IC Role / Device Role: High-power transient suppressor across DC bus rails and isolated feedback paths. Use Value: 1500 W peak power rating absorbs energy from 200 A surge currents without failure. |
| Telecom Base Station Power Supplies | Consumer Appliance Sensor Interfaces |
Use Scenario: Shielding PMICs and ADC inputs from lightning-induced surges on AC/DC front-end circuits. IC Role / Device Role: Primary-level TVS on 48 V intermediate bus lines feeding telecom subsystems. Use Value: Withstands repeated 10/1000 μs transients up to 1500 W while maintaining <1.0 μA leakage at 18.8 V. |
Use Scenario: Protecting Hall-effect sensors and thermistor signal lines in washing machine control boards. IC Role / Device Role: Low-capacitance unidirectional clamp on analog sensor outputs routed near motor windings. Use Value: 1.1 mm height avoids interference with mechanical enclosures; AEC-Q101 ensures long-term field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A-E3/57T (Vishay) | DO-214AC package; 22 V VBR; 400 W PPPM; 1.8 mm height; same AEC-Q101 qualification | Lower power rating suits consumer-grade designs; less suitable for high-energy automotive transients | Select when board space permits larger footprint and surge energy is ≤400 W |
| TPC22AHE3_A/I (Vishay) | Same electrical specs but HM3 → HE3 suffix; identical TO-277A package; differs only in tape/reel packaging (I vs. H) and revision code | No functional difference; HE3 denotes later revision with identical performance and qualification | Choose TPC22AHM3_A/I for legacy BOM alignment; TPC22AHE3_A/I for latest production release |
Compared with SMAJ22A-E3/57T and TPC22AHE3_A/I, the TPC22AHM3_A/I delivers 3.75× higher peak power handling in the same compact TO-277A footprint, making it optimal for automotive and industrial systems where energy absorption and thermal margin are critical.
Availability
TPC22AHM3_A/I is available at Aetrix Electronics and suitable for automotive powertrain ECUs, industrial motor drives, and telecom base station power supplies requiring stable component supply and AEC-Q101 compliance.
Supply support for TPC22AHM3_A/I 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, and protection devices with emphasis on reliability, efficiency, and automotive-grade qualification.
The TPC series targets high-energy transient suppression in harsh environments, specifically engineered for AEC-Q101 compliance, extended temperature operation, and low-inductance surface-mount packaging for automotive and industrial power electronics.
FAQ
What is the clamping voltage of TPC22AHM3_A/I at its rated peak pulse current?
The TPC22AHM3_A/I has a maximum clamping voltage (VC) of 30.6 V when subjected to its rated peak pulse current (IPPM) of 49.0 A under 10/1000 μs waveform conditions. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for downstream components such as microcontrollers and gate drivers in the TPC22AHM3_A/I protection circuit.
Is TPC22AHM3_A/I qualified for automotive applications?
Yes, the TPC22AHM3_A/I is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood and powertrain applications. Its TO-277A package meets JESD201 Class 2 whisker resistance, and the HM3 suffix confirms halogen-free, RoHS-compliant construction - all verified per Vishay's qualification report for the TPC22AHM3_A/I family.
What does the "HM3" suffix mean in TPC22AHM3_A/I?
The "HM3" suffix in TPC22AHM3_A/I indicates halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance and AEC-Q101 qualification. The "A" denotes the revision code, and "I" specifies 13-inch tape-and-reel packaging with 6500 units per reel - distinct from "H" (7-inch reel, 1500 units) used in other variants of the TPC22AHM3_A/I series.
Can TPC22AHM3_A/I be used in bidirectional configurations?
No, the TPC22AHM3_A/I is strictly unidirectional and must be oriented with its anode (Terminal 2) toward ground and cathodes (Terminals 1 and 3) toward the protected line. Bidirectional protection requires two TPC22AHM3_A/I devices in series opposition or a dedicated bidirectional TVS such as the SMBJ22CA - the TPC22AHM3_A/I datasheet explicitly states "Uni-direction only" as a core feature.
What is the maximum reverse leakage current of TPC22AHM3_A/I at its stand-off voltage?
The TPC22AHM3_A/I exhibits a maximum reverse leakage current (IR) of 1.0 μA at its stand-off voltage (VWM) of 18.8 V, measured at 25 °C. At elevated temperature (TJ = 150 °C), leakage increases to 10 μA - a value confirmed in the Electrical Characteristics table of the official Vishay datasheet for the TPC22AHM3_A/I device.
TPC22AHM3_A/I 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:
- Active
- 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_A/I FAQ
1.How can I place an order for TPC22AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC22AHM3_A/I 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_A/I reliable?
The price and inventory of TPC22AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC22AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPC22AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC22AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC22AHM3_A/I?
TPC22AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC22AHM3_A/I 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_A/I?
For technical support, including TPC22AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC22AHM3_A/I requirements.
6.How does Aetrix verify that TPC22AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPC22AHM3_A/I 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_A/I meets industry standards.
7.What is the process for return or replacement of TPC22AHM3_A/I?
All TPC22AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPC22AHM3_A/I, 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_A/I part is unused and in its original packaging.
Return procedure for TPC22AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC22AHM3_A/I Tags
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