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Vishay General Semiconductor - Diodes Division TPC36CAHM3/H
- Part No.:
- TPC36CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC36CAHM3/H.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:5,641
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Product details
Overview
TPC36CAHM3/H from Vishay General Semiconductor is a bidirectional 1500 W transient voltage suppressor (TVS) in SMPC (TO-277A) package, designed for high-reliability automotive and industrial electronics protection. It features a standoff voltage of 30.8 V, breakdown voltage range of 34.2–37.8 V at 1 mA, clamping voltage of 49.9 V at 30.1 A, junction temperature rating up to +185 °C, and AEC-Q101 qualification.
For engineers reviewing the TPC36CAHM3/H datasheet, TPC36CAHM3/H pinout, TPC36CAHM3/H application, or TPC36CAHM3/H equivalent, key selection criteria include peak pulse power (1500 W), bidirectional clamping performance, low-profile 1.1 mm height, halogen-free RoHS-compliant construction, and JESD201 Class 2 whisker resistance - all critical for automotive sensor line and MOSFET gate protection in harsh environments.
Technical Context
The TPC36CAHM3/H implements a junction-passivated PAR® design optimized for fast transient response and stable clamping under repetitive surge stress. Its bidirectional structure enables symmetrical suppression of positive and negative transients without polarity sensitivity, and its 10/1000 μs waveform-rated 1500 W peak power supports robust protection against ISO 7637-2 and ISO 16750-2 automotive load-dump and inductive-switching events.
Rated for operation from –65 °C to +185 °C, the device uses a silicon avalanche diode architecture with low leakage (<1 μA at 30.8 V) and tight VBR tolerance (±5% typical), ensuring predictable turn-on behavior across temperature and lifetime. The SMPC package provides mechanical robustness and thermal performance suitable for automated SMT assembly and under-hood automotive placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30.8 V - Maximum continuous reverse operating voltage before significant leakage; defines safe signal line bias margin |
| VBR (min/max) | 34.2 V / 37.8 V at 1 mA - Avalanche breakdown threshold range; ensures reliable conduction onset during overvoltage |
| VC @ IPPM | 49.9 V at 30.1 A - Clamped voltage under 10/1000 μs surge; determines protected circuit's maximum stress level |
| PPPM | 1500 W - Peak pulse power handling per single transient; meets ISO 7637-2 Pulse 5a requirements |
| TJ max | +185 °C - Maximum junction temperature; enables under-hood deployment without derating in high-ambient zones |
| Polarity | Bidirectional - Symmetric clamping for AC-coupled or floating signal lines; eliminates orientation concerns during placement |
| MSL Level | Level 1 per J-STD-020 - No floor life limitation; supports standard reflow without dry-pack or baking |
Pinout & Package
Package: SMPC (TO-277A), surface-mount, 2-terminal, halogen-free, RoHS-compliant, AEC-Q101 qualified, 1.1 mm typical height, 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 identical to Terminal 1; symmetric layout simplifies PCB routing and layout reuse |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation PAR® design | Enables stable long-term clamping performance and reduced parameter drift under thermal cycling |
| AEC-Q101 qualification | Validated reliability for automotive powertrain, body control, and ADAS modules per stress test requirements |
| 1.1 mm profile | Reduces board space and enables placement beneath connectors or in constrained ECU housings |
| Low leakage (<1 μA @ VWM) | Minimizes standby power loss and avoids false triggering in high-impedance sensor interfaces |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth under thermal/humidity stress, critical for 15+ year automotive service life |
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 ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector entry point to clamp transients before reaching interface ICs. Use Value: Maintains signal integrity under ISO 16750-2 Pulse 4a (50 V, 100 ms) and IEC 61000-4-2 ±8 kV contact discharge. | Use Scenario: Safeguarding microcontroller GPIOs and optocoupler inputs connected to relay coils or solenoid drivers in PLC I/O modules. IC Role / Device Role / Timing Role: Fast-response shunt protector absorbing inductive kickback energy from 24 V DC control circuits. Use Value: Limits voltage excursion to ≤49.9 V during 30.1 A surges, preventing latch-up or permanent damage to 3.3 V/5 V logic inputs. |
| Consumer Power Adapter Outputs | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage suppression on 12–24 V DC output rails of wall adapters and USB-PD auxiliary supplies. IC Role / Device Role / Timing Role: Standoff-clamp TVS parallel to output capacitor, triggered only during fault conditions. Use Value: Withstands repeated 1500 W pulses without degradation, extending adapter field life in unregulated AC mains environments. | Use Scenario: Protecting Ethernet PHY magnetics and PoE controller inputs against lightning-induced surges on outdoor telecom links. IC Role / Device Role / Timing Role: Primary-stage bidirectional clamp on differential pair before common-mode choke. Use Value: Symmetric clamping preserves signal balance while limiting common-mode voltage to <50 V, preserving IEEE 802.3af/at compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A-E3/5AT | Unidirectional; 33 V VWM; 500 W PPPM; SMA package (higher profile, lower power) | Requires external polarity management; unsuitable for AC or floating lines without series diodes | Select when cost sensitivity outweighs bidirectionality and power headroom, and layout allows polarity-aware placement |
| SMCJ33CA | Bidirectional; 33 V VWM; 1500 W PPPM; DO-214AB package (4.5 mm height, larger footprint) | Same clamping performance but incompatible with ultra-low-profile designs; higher thermal resistance | Choose when existing DO-214AB footprints exist and 1.1 mm height constraint does not apply |
Compared with SMAJ33A-E3/5AT and SMCJ33CA, the TPC36CAHM3/H delivers identical 1500 W surge capability in a 1.1 mm profile with AEC-Q101 and JESD201 Class 2 validation - making it the only option meeting automotive under-hood height, reliability, and bidirectional requirements simultaneously.
Availability
TPC36CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial motor drive inputs, and telecom line interface protection requiring stable component supply, long-lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for TPC36CAHM3/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, MOSFETs, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The TPC36CAHM3/H belongs to Vishay's eSMP® PAR® TVS family, engineered specifically for high-power, high-temperature automotive and industrial transient suppression where compact size, AEC-Q101 compliance, and consistent clamping performance are mandatory.
FAQ
What is the maximum clamping voltage of the TPC36CAHM3/H under a 10/1000 μs surge?
The TPC36CAHM3/H has a maximum clamping voltage (VC) of 49.9 V when subjected to its rated peak pulse current of 30.1 A using the standardized 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees the protected downstream circuit will not experience voltage stress beyond this level during specified transient events.
Is the TPC36CAHM3/H suitable for automotive under-hood applications?
Yes, the TPC36CAHM3/H is explicitly qualified to AEC-Q101 and rated for junction temperatures up to +185 °C, making it suitable for under-hood automotive applications including engine control units, transmission modules, and ADAS sensor interfaces where ambient temperatures exceed 125 °C and reliability over 15 years is required.
Does the TPC36CAHM3/H require polarity-aware PCB layout?
No, the TPC36CAHM3/H is a bidirectional TVS with identical electrical characteristics between both terminals. There is no polarity marking on the device, and either terminal may serve as anode or cathode depending on transient direction - enabling simplified, orientation-agnostic placement on PCBs.
What is the standoff voltage rating of the TPC36CAHM3/H, and how does it relate to system operating voltage?
The TPC36CAHM3/H has a maximum working peak reverse voltage (VWM) of 30.8 V, meaning it remains non-conductive below this level. For reliable operation, system nominal voltage (e.g., 24 V automotive) must be ≤80–90% of VWM to ensure margin against ripple, tolerance, and temperature drift - confirming compatibility with 24 V systems.
How does the SMPC (TO-277A) package of the TPC36CAHM3/H compare to traditional SMA or SMC packages in terms of thermal performance?
The SMPC (TO-277A) package of the TPC36CAHM3/H offers lower thermal resistance than SMA and comparable RθJA to SMC despite its 1.1 mm profile, due to optimized copper clip construction and direct die-to-leadframe thermal path. This enables full 1500 W surge dissipation without derating in standard 2-layer FR-4 layouts with minimal copper area.
TPC36CAHM3/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):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 30.1A
- 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)
TPC36CAHM3/H FAQ
1.How can I place an order for TPC36CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC36CAHM3/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 TPC36CAHM3/H reliable?
The price and inventory of TPC36CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC36CAHM3/H is usually 5 days.
3.What payment methods are accepted for TPC36CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC36CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC36CAHM3/H?
TPC36CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC36CAHM3/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 TPC36CAHM3/H?
For technical support, including TPC36CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC36CAHM3/H requirements.
6.How does Aetrix verify that TPC36CAHM3/H is sourced from the original manufacturer or authorized distributors?
All TPC36CAHM3/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 TPC36CAHM3/H meets industry standards.
7.What is the process for return or replacement of TPC36CAHM3/H?
All TPC36CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with TPC36CAHM3/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 TPC36CAHM3/H part is unused and in its original packaging.
Return procedure for TPC36CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC36CAHM3/H Tags
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