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Vishay General Semiconductor - Diodes Division TPC22CAHM3/H
- Part No.:
- TPC22CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC22CAHM3/H.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:9,775
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Product details
Overview
TPC22CAHM3/H from Vishay General Semiconductor is a bidirectional 1500 W transient voltage suppressor (TVS) in the SMPC (TO-277A) surface-mount 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/H datasheet, TPC22CAHM3/H pinout, TPC22CAHM3/H application, or TPC22CAHM3/H equivalent, key selection criteria include its AEC-Q101 qualification, low-profile 1.1 mm height, MSL Level 1 rating, halogen-free RoHS-compliant construction, and suitability for inductive load switching transients on sensor signal lines and MOSFET gate drivers.
Technical Context
The TPC22CAHM3/H implements a junction-passivated PAR® design optimized for fast response to transient overvoltages with minimal leakage (<1.0 μA at 18.8 V). Its bidirectional structure enables symmetrical clamping without polarity dependency, supporting protection of AC-coupled or differential signal paths.
Rated for 1500 W peak pulse power under 10/1000 μs waveform, it delivers stable clamping performance across -65 °C to +185 °C operating range and maintains reliability under reflow conditions up to 260 °C peak, meeting J-STD-020 and JESD201 Class 2 whisker test requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 20.9 V / 23.1 V - ensures reliable triggering above 18.8 V stand-off without false activation |
| VWM | 18.8 V - maximum continuous reverse working voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 30.6 V - clamping voltage limits downstream IC stress during 49.0 A surge events |
| PPPM | 1500 W - handles high-energy transients from inductive loads like solenoids or motors |
| TJ max | +185 °C - supports under-hood automotive placement and extended thermal margin |
| Package | SMPC (TO-277A) - ultra-low profile (1.1 mm typical height), compatible with automated SMT assembly |
| AEC-Q101 | Qualified - validated for automotive-grade reliability per stress test standard |
Pinout & Package
TPC22CAHM3/H uses the SMPC (TO-277A) surface-mount package: 2-terminal, bidirectional device with no polarity marking. Dimensions conform to JEDEC TO-277A: 4.80 × 3.70 × 1.10 mm (L × W × H), matte tin-plated leads solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no marking required |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically symmetric to Terminal 1; enables placement flexibility on PCB without orientation constraints |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation PAR® design | Reduces leakage drift and improves long-term stability under thermal cycling and humidity stress |
| 185 °C junction rating | Enables direct placement near high-power components in engine control units and motor drivers |
| 1.1 mm typical height | Minimizes board space and Z-height constraints in compact automotive ECUs and ADAS modules |
| MSL Level 1, 260 °C peak | Eliminates pre-bake requirement and supports standard lead-free reflow profiles |
| Halogen-free, RoHS-compliant | Meets global environmental compliance mandates including EU Directive 2011/65/EU and JIS C 0950 |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive kickback in vehicle body control modules. IC Role / Device Role / Timing Role: Bidirectional TVS placed at connector interface to clamp ±30.6 V surges before reaching sensitive input pins. Use Value: Prevents latch-up or permanent damage to microcontrollers and signal conditioners during ISO 7637-2 Pulse 1/2a/5a events. | Use Scenario: Safeguarding gate driver inputs and feedback sensing nodes in variable-frequency drives exposed to relay contact bounce and transformer switching noise. IC Role / Device Role / Timing Role: Fast-response transient suppressor across isolated signal paths to maintain timing integrity of PWM control signals. Use Value: Maintains system uptime by preventing false triggering or reset events caused by sub-100 ns transients. |
| Consumer Power Adapter Outputs | Telecom Line Interface Circuits |
Use Scenario: Secondary-side overvoltage suppression in USB-C PD adapters and wireless charging transmitters subject to output short-circuit recovery spikes. IC Role / Device Role / Timing Role: Standoff-rated protector (18.8 V) placed after DC-DC converter output to absorb energy from inductor flyback. Use Value: Enables robust 1500 W surge handling without derating at elevated ambient temperatures up to +85 °C. | Use Scenario: Protection of Ethernet PHY interfaces and DSL line drivers against lightning-induced surges and ESD events per IEC 61000-4-5 Level 3. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp integrated into front-end filter network ahead of transformer coupling. Use Value: Preserves signal integrity with <1.0 μA leakage at 18.8 V, minimizing baseline offset in precision analog receivers. |
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 (2.5 mm height) | Requires polarity-aware layout; unsuitable for AC or differential lines without external diode pairing | Select when unidirectional protection suffices and board height allows SMA footprint |
| TPC24CAHM3/H | Higher VBR (22.8–25.2 V); same package, AEC-Q101, and 1500 W rating | Better suited for 24 V systems with higher surge margin; slightly reduced IPPM (45.2 A) | Choose for 24 V nominal rails where tighter clamping margin vs. system overvoltage threshold is critical |
Compared with SMAJ22A-E3/57T and TPC24CAHM3/H, the TPC22CAHM3/H provides optimal balance of 12 V–24 V dual-rail compatibility, ultra-low profile, and bidirectional symmetry-making it preferred for space-constrained automotive sensor nodes requiring zero-orientation mounting and full polarity immunity.
Availability
TPC22CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial motor drive inputs, and consumer power adapter outputs requiring stable component supply and AEC-Q101 compliance.
Supply support for TPC22CAHM3/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, efficiency, and application-specific optimization.
The TPCxxCA series belongs to Vishay's PAR®-enhanced TVS family, engineered specifically for high-energy transient suppression in harsh-environment automotive and industrial systems where thermal resilience and AEC-Q101 validation are mandatory.
FAQ
What is the maximum clamping voltage of the TPC22CAHM3/H under rated surge conditions?
The TPC22CAHM3/H has a maximum clamping voltage (VC) of 30.6 V when subjected to its rated 49.0 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on protected circuitry during transient events, ensuring downstream components remain within safe operating limits.
Is the TPC22CAHM3/H suitable for use in automotive applications?
Yes, the TPC22CAHM3/H is AEC-Q101 qualified and rated for operation from -65 °C to +185 °C junction temperature, making it suitable for under-hood and chassis-mounted automotive applications. Its halogen-free, RoHS-compliant construction and MSL Level 1 reflow capability further support compliance with automotive manufacturing and environmental standards.
What does the "HM3" suffix indicate in TPC22CAHM3/H?
The "HM3" suffix in TPC22CAHM3/H denotes Vishay's halogen-free, RoHS-compliant, AEC-Q101-qualified variant in the SMPC (TO-277A) package. The "/H" indicates packaging in 7-inch plastic tape and reel with 1500 units per reel, optimized for high-speed SMT placement.
How does the bidirectional nature of the TPC22CAHM3/H affect its PCB layout?
The TPC22CAHM3/H is bidirectional with no polarity marking, allowing either terminal to be connected to line or ground without orientation constraints. This simplifies PCB layout by eliminating the need for silkscreen polarity indicators or directional placement checks, reducing assembly errors and enabling flexible routing in differential or AC-coupled signal paths.
What is the standoff voltage rating of the TPC22CAHM3/H, and why is it important?
The TPC22CAHM3/H has a maximum stand-off voltage (VWM) of 18.8 V, meaning it remains non-conductive with leakage <1.0 μA up to this DC or RMS voltage. This rating ensures reliable operation in 12 V and 24 V nominal systems while providing sufficient margin below the 20.9 V minimum breakdown voltage to prevent false triggering during normal operation.
TPC22CAHM3/H 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/H FAQ
1.How can I place an order for TPC22CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC22CAHM3/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 TPC22CAHM3/H reliable?
The price and inventory of TPC22CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC22CAHM3/H is usually 5 days.
3.What payment methods are accepted for TPC22CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC22CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC22CAHM3/H?
TPC22CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC22CAHM3/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 TPC22CAHM3/H?
For technical support, including TPC22CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC22CAHM3/H requirements.
6.How does Aetrix verify that TPC22CAHM3/H is sourced from the original manufacturer or authorized distributors?
All TPC22CAHM3/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 TPC22CAHM3/H meets industry standards.
7.What is the process for return or replacement of TPC22CAHM3/H?
All TPC22CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with TPC22CAHM3/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 TPC22CAHM3/H part is unused and in its original packaging.
Return procedure for TPC22CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC22CAHM3/H Tags
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