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Vishay General Semiconductor - Diodes Division TPC12CAHM3/H
- Part No.:
- TPC12CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC12CAHM3/H.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:9,974
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Product details
Overview
TPC12CAHM3/H from Vishay General Semiconductor is a bidirectional 1500 W surface-mount transient voltage suppressor (TVS) in the SMPC (TO-277A) package, featuring a standoff voltage of 10.2 V, breakdown voltage range of 11.4–12.6 V at 1 mA, clamping voltage of 16.7 V at 89.8 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the TPC12CAHM3/H datasheet, TPC12CAHM3/H pinout, TPC12CAHM3/H application, or TPC12CAHM3/H equivalent, this device serves as a high-energy, low-profile protection solution for sensitive signal lines and power rails in harsh environments where fast response, low leakage (<2 µA), and junction temperature capability up to +185 °C are critical.
Technical Context
The TPC12CAHM3/H employs a junction-passivated PAR® design optimized for robust transient suppression under repetitive and non-repetitive surge conditions. Its bidirectional architecture enables symmetrical clamping on both polarities without external polarity management.
It delivers 1500 W peak pulse power per the 10/1000 µs waveform standard, with a very fast response time and clamping performance validated across -65 °C to +185 °C operating junction temperature range-meeting automotive thermal stress requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10.2 V - Maximum continuous reverse working voltage before significant leakage; sets upper limit for safe DC bias operation. |
| VBR (min/max) | 11.4 V / 12.6 V at IT = 1 mA - Confirmed breakdown threshold ensures predictable turn-on during transients. |
| VC @ IPPM | 16.7 V at 89.8 A - Clamping voltage limits downstream voltage stress during 1500 W surge events. |
| PPPM | 1500 W - Peak pulse power rating per 10/1000 µs waveform; defines maximum single-event energy absorption. |
| IPPM | 89.8 A - Peak pulse current corresponding to VC; used to size PCB traces and verify system-level surge margin. |
| TJ max | +185 °C - Maximum junction temperature rating supports under-hood automotive placement and high-reliability industrial use. |
| Leakage ID | <2 µA at VWM - Low reverse leakage preserves signal integrity and minimizes standby power loss. |
Pinout & Package
Package: SMPC (TO-277A), halogen-free, RoHS-compliant, AEC-Q101 qualified, with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Typical height: 1.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Identical terminal function; no polarity marking required-enables flexible layout and eliminates orientation errors during automated placement. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically symmetric to Terminal 1; forms a two-terminal, polarity-agnostic clamp across protected line and ground or differential pair. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation (PAR® design) | Enables stable VBR and low leakage over lifetime and temperature extremes, critical for automotive field reliability. |
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements including HTOL, TC, HTRB, and ESD-supports PPAP compliance. |
| MSL Level 1 (260 °C peak) | Allows direct placement into standard lead-free reflow profiles without moisture sensitivity concerns or baking pre-assembly. |
| 1.1 mm typical height | Reduces board profile and mechanical interference in space-constrained modules such as ADAS ECUs and battery management sensors. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage overshoot during fast transients, protecting downstream ICs with tight absolute maximum ratings. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Line Protection |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs and sensor analog outputs (e.g., pressure, temperature) from load dump and inductive switching spikes in vehicle body control modules. IC Role / Device Role / Timing Role: Bidirectional TVS placed between signal line and ground to clamp ±20 V transients while maintaining <2 µA leakage at 10.2 V bias. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V interface ICs during ISO 7637-2 Pulse 1/2a/5a events without adding series impedance. | Use Scenario: Safeguarding differential CAN_H/CAN_L lines against ESD (IEC 61000-4-2) and surge (IEC 61000-4-5) in factory automation gateways and motor drives. IC Role / Device Role / Timing Role: Two-device configuration (one per line) providing symmetrical clamping with matched VBR and VC to preserve common-mode noise rejection. Use Value: Maintains CAN signal integrity up to 1 Mbps by limiting clamping overshoot to ≤16.7 V and preserving <1 pF junction capacitance at zero bias. |
| Consumer Power Adapter Input Protection | Telecom DC Power Rail Protection |
Use Scenario: Suppressing AC-line coupled surges and hot-plug transients on 12 V input rails of USB-C PD adapters and smart home hubs. IC Role / Device Role / Timing Role: Primary-stage TVS mounted directly at connector entry point, absorbing 1500 W pulses before upstream fuse or controller IC. Use Value: Eliminates need for secondary protection stages due to high PPPM and low VC, reducing BOM count and PCB area. | Use Scenario: Guarding 48 V telecom power distribution boards against lightning-induced surges and accidental cross-wiring events. IC Role / Device Role / Timing Role: High-energy bidirectional clamp installed between +48 V rail and chassis ground, rated for repeated exposure to 10/1000 µs waveforms. Use Value: Sustains operation after multiple 1500 W events without parameter drift, verified via AEC-Q101 HTOL and surge endurance testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A-E3/5T | Unidirectional; VWM = 12 V; VC = 19.9 V at 75.4 A; same SMAC (DO-214AC) package but higher clamping voltage. | Requires explicit polarity assignment; unsuitable for AC-coupled or floating differential lines without redesign. | Select when unidirectional protection suffices and layout allows polarity-aware placement; not drop-in for bidirectional use cases. |
| TPC12CAHM3/I | Identical electrical specs and package; differs only in packaging format (13" reel, 6500 pcs vs. 7" reel, 1500 pcs). | No functional or application difference; solely a logistics variant for high-volume production runs. | Choose based on procurement volume and SMT line feeder compatibility-not an electrical alternative. |
Compared with SMAJ12A-E3/5T and TPC12CAHM3/I, the TPC12CAHM3/H offers true bidirectional clamping with lower VC and automotive qualification out-of-box, while TPC12CAHM3/I provides identical performance in alternate tape-and-reel configuration-making it a logistics-only variant rather than a technical alternative.
Availability
TPC12CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, and telecom DC power rail protection requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for TPC12CAHM3/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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The TPC12CAHM3/H belongs to Vishay's eSMP® PAR® TVS family, engineered for high-energy transient suppression in automotive and industrial environments where AEC-Q101 compliance, low profile, and consistent clamping performance are mandatory.
FAQ
What is the maximum clamping voltage of the TPC12CAHM3/H under surge conditions?
The TPC12CAHM3/H has a maximum clamping voltage (VC) of 16.7 V when subjected to its rated peak pulse current of 89.8 A using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 standards and ensures downstream circuitry remains within safe voltage limits during transient events. The TPC12CAHM3/H maintains this clamping performance across its full operating temperature range.
Is the TPC12CAHM3/H suitable for automotive applications?
Yes, the TPC12CAHM3/H 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 MSL Level 1 rating further support automotive manufacturing requirements. The TPC12CAHM3/H is explicitly designated for automotive use with the HM3 suffix per Vishay's ordering nomenclature.
Does the TPC12CAHM3/H require polarity-aware PCB layout?
No-the TPC12CAHM3/H is a bidirectional TVS with identical terminals; there is no anode/cathode distinction or polarity marking on the device. This allows unrestricted orientation during automated placement and simplifies layout for differential or AC-coupled signal paths. The symmetry is inherent to its PAR® design and confirmed in Vishay's mechanical drawings and electrical characterization.
What is the standoff voltage rating of the TPC12CAHM3/H?
The TPC12CAHM3/H has a maximum reverse standoff voltage (VWM) of 10.2 V at 25 °C, meaning it remains in high-impedance state below this DC or RMS voltage level. Leakage current stays below 2 µA at this voltage, ensuring minimal loading on protected circuits. This rating is validated across the full -65 °C to +185 °C junction temperature range.
How does the TPC12CAHM3/H compare to other devices in the TPCxxCA family?
The TPC12CAHM3/H is part of the TPC11CA–TPC36CA family, sharing the same SMPC (TO-277A) package, AEC-Q101 qualification, and PAR® architecture. Its specific VBR (11.4–12.6 V), VWM (10.2 V), and VC (16.7 V) values position it for 12 V nominal systems-distinct from adjacent variants like TPC11CA (VWM = 9.4 V) or TPC13CA (VWM = 11.1 V), which target different bias voltage windows.
TPC12CAHM3/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):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 89.8A
- 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)
TPC12CAHM3/H FAQ
1.How can I place an order for TPC12CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC12CAHM3/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 TPC12CAHM3/H reliable?
The price and inventory of TPC12CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC12CAHM3/H is usually 5 days.
3.What payment methods are accepted for TPC12CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC12CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC12CAHM3/H?
TPC12CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC12CAHM3/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 TPC12CAHM3/H?
For technical support, including TPC12CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC12CAHM3/H requirements.
6.How does Aetrix verify that TPC12CAHM3/H is sourced from the original manufacturer or authorized distributors?
All TPC12CAHM3/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 TPC12CAHM3/H meets industry standards.
7.What is the process for return or replacement of TPC12CAHM3/H?
All TPC12CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with TPC12CAHM3/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 TPC12CAHM3/H part is unused and in its original packaging.
Return procedure for TPC12CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC12CAHM3/H Tags
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