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Vishay General Semiconductor - Diodes Division TPC22CAHM3/I
- Part No.:
- TPC22CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC22CAHM3/I.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:5,024
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Product details
Overview
TPC22CAHM3/I from Vishay General Semiconductor is a bidirectional 1500 W transient voltage suppressor (TVS) in the SMPC (TO-277A) package, designed for high-reliability automotive and industrial electronics protection. It features a breakdown voltage of 20.9–23.1 V, 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 TPC22CAHM3/I datasheet, TPC22CAHM3/I pinout, TPC22CAHM3/I application, or TPC22CAHM3/I equivalent, key selection criteria include its AEC-Q101 qualification, low-profile 1.1 mm height, MSL Level 1 rating, bidirectional surge suppression capability, and compatibility with automated SMT placement on signal lines and power rails.
Technical Context
The TPC22CAHM3/I implements a junction-passivated PAR® structure optimized for fast response to transients induced by inductive load switching or ESD events. Its bidirectional architecture enables symmetrical clamping without polarity sensitivity, and it sustains non-repetitive 10/1000 μs surge pulses up to 1500 W while maintaining ≤30.6 V clamping at 49.0 A.
Rated for TJ = –65 °C to +185 °C, the device meets automotive reliability requirements including JESD201 Class 2 whisker resistance and halogen-free, RoHS-compliant construction. Its SMPC (TO-277A) package supports high thermal dissipation and solderability per J-STD-002 and JESD22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 20.9 V / 23.1 V - ensures reliable breakdown initiation above 18.8 V stand-off without false triggering |
| VWM | 18.8 V - maximum continuous reverse working voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 30.6 V - clamping voltage during 49.0 A 10/1000 μs surge, limiting downstream IC stress |
| PPPM | 1500 W - peak pulse power handling capacity under standardized transient conditions |
| TJ max | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| Package | SMPC (TO-277A) - surface-mount, low-profile (1.1 mm typical height), AEC-Q101 qualified |
| Polarity | Bidirectional - protects AC-coupled or dual-rail circuits without orientation constraints |
Pinout & Package
TPC22CAHM3/I uses a 2-terminal SMPC (TO-277A) package with no polarity marking. Terminals are matte tin-plated for robust solderability and whisker resistance (JESD201 Class 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as input/output path for transient energy; symmetric conduction eliminates orientation dependency |
| Terminal 2 | Anode/Cathode (bidirectional) | Completes the bidirectional clamping path; both terminals function identically under reverse or forward surge conditions |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation (PAR® design) | Reduces leakage drift and improves long-term stability under thermal cycling and humidity stress |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules requiring zero-failure reliability |
| MSL Level 1 (260 °C peak) | Enables standard reflow soldering without moisture-induced damage or popcorn effect |
| Low profile (1.1 mm typical height) | Supports compact PCB layouts in space-constrained modules such as sensor ECUs and infotainment head units |
| Halogen-free & RoHS-compliant | Meets global environmental compliance mandates for automotive OEMs and industrial equipment manufacturers |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector interface or IC input pins. Use Value: Limits transient voltage to ≤30.6 V during 49.0 A surges, preserving signal integrity and preventing latch-up in 3.3 V/5 V sensor interfaces. | Use Scenario: Safeguarding gate drivers and microcontroller I/Os in variable-frequency drives exposed to inductive kickback from relay coils or motor windings. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC bus sensing lines and isolated feedback paths. Use Value: Absorbs 1500 W transient energy without degradation, enabling robust operation in 24 V/48 V industrial control systems. |
| Consumer Power Adapter Outputs | Telecom Line Interface Protection |
Use Scenario: Secondary-side surge protection on USB-C PD and AC/DC adapter outputs subject to lightning-induced surges and hot-plug transients. IC Role / Device Role / Timing Role: Final-stage clamping device between output capacitor and connector. Use Value: Maintains <1.0 μA leakage at 18.8 V, minimizing standby power loss while delivering 30.6 V clamping performance. | Use Scenario: Protecting Ethernet PHYs and DSL line drivers against induced surges on twisted-pair telecom interfaces. IC Role / Device Role / Timing Role: Differential-mode TVS across data pair lines (e.g., TX+/TX−) in PoE-powered equipment. Use Value: Symmetric bidirectional clamping ensures equal protection for both signal polarities without additional components. |
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-E3/57T | Unidirectional; 22 V VWM; 35.5 V VC @ 42.3 A; SMA package (higher profile, lower PPPM = 400 W) | Requires polarity-aware layout; unsuitable for AC or floating-bus applications | Select when unidirectional clamping suffices and board height allows SMA footprint |
| TPC22CAHM3/H | Same electrical specs and SMPC package; differs only in tape-and-reel packaging (7″ vs. 13″ reel, 1500 vs. 6500 units) | No functional or application difference; identical performance and mounting | Choose based on production volume and SMT line feeder compatibility |
Compared with SMAJ22A-E3/57T, TPC22CAHM3/I offers higher surge rating (1500 W vs. 400 W), bidirectional operation, and automotive qualification; compared with TPC22CAHM3/H, it provides identical protection performance but in higher-volume 13″ reel format for large-scale manufacturing.
Availability
TPC22CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial motor controllers, consumer power adapters, and telecom line interfaces requiring stable component supply and AEC-Q101-compliant surge protection.
Supply support for TPC22CAHM3/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, MOSFETs, and protection devices with emphasis on reliability and automotive-grade performance.
The TPC22CAHM3/I belongs to Vishay's PAR® TVS family, engineered specifically for high-energy transient suppression in harsh environments where AEC-Q101 qualification, thermal resilience, and low-profile SMT integration are mandatory.
FAQ
What is the maximum clamping voltage of the TPC22CAHM3/I under surge conditions?
The TPC22CAHM3/I has a maximum clamping voltage (VC) of 30.6 V when subjected to its rated peak pulse current of 49.0 A using a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 standards and ensures downstream circuitry remains within safe operating limits during transient events. The TPC22CAHM3/I maintains this clamping performance across its full operating temperature range.
Is the TPC22CAHM3/I suitable for automotive applications?
Yes, the TPC22CAHM3/I is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood and body-control module applications. Its halogen-free, RoHS-compliant construction and JESD201 Class 2 whisker resistance further validate its use in automotive electronics. The TPC22CAHM3/I is explicitly designated for automotive use via the HM3 suffix in its ordering code.
What does the "HM3" suffix indicate in TPC22CAHM3/I?
The "HM3" suffix in TPC22CAHM3/I denotes halogen-free, RoHS-compliant construction, AEC-Q101 qualification, and compliance with JESD201 Class 2 whisker testing. It also specifies the SMPC (TO-277A) package and indicates the part is intended for automotive-grade applications. The "I" suffix identifies the 13″ tape-and-reel packaging option containing 6500 units.
How does the bidirectional nature of the TPC22CAHM3/I affect circuit design?
The bidirectional configuration of the TPC22CAHM3/I eliminates polarity sensitivity, allowing placement without regard to anode/cathode orientation-ideal for AC-coupled lines, differential buses, or floating grounds. This simplifies layout, reduces BOM complexity, and avoids misorientation risks during assembly. The TPC22CAHM3/I delivers identical clamping performance in both directions, ensuring consistent protection regardless of surge polarity.
What is the standoff voltage (VWM) of the TPC22CAHM3/I, and why is it important?
The TPC22CAHM3/I has a maximum working standoff voltage (VWM) of 18.8 V, meaning it remains in high-impedance state below this voltage with leakage ≤1.0 μA. This parameter ensures minimal interference with normal circuit operation while providing sufficient margin above common 12 V and 15 V rail voltages. Selecting a VWM correctly prevents false triggering and guarantees reliable clamping only during actual overvoltage events.
TPC22CAHM3/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:
- -
- Bidirectional Channels:
- 1
- 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 ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-277A (SMPC)
TPC22CAHM3/I FAQ
1.How can I place an order for TPC22CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC22CAHM3/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 TPC22CAHM3/I reliable?
The price and inventory of TPC22CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC22CAHM3/I is usually 5 days.
3.What payment methods are accepted for TPC22CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC22CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC22CAHM3/I?
TPC22CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC22CAHM3/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 TPC22CAHM3/I?
For technical support, including TPC22CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC22CAHM3/I requirements.
6.How does Aetrix verify that TPC22CAHM3/I is sourced from the original manufacturer or authorized distributors?
All TPC22CAHM3/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 TPC22CAHM3/I meets industry standards.
7.What is the process for return or replacement of TPC22CAHM3/I?
All TPC22CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with TPC22CAHM3/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 TPC22CAHM3/I part is unused and in its original packaging.
Return procedure for TPC22CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC22CAHM3/I Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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