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Vishay General Semiconductor - Diodes Division TPC36AHM3/87A
- Part No.:
- TPC36AHM3/87A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC36AHM3/87A.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:9,753
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Product details
Overview
TPC36AHM3/87A from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in TO-277A (SMPC) package, designed for clamping fast voltage transients on power rails and signal lines. 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, and operates from −65 °C to +185 °C.
For engineers reviewing the TPC36AHM3/87A datasheet, TPC36AHM3/87A pinout, TPC36AHM3/87A application, or TPC36AHM3/87A equivalent, this device is selected for high-reliability automotive and industrial surge protection where low-profile mounting, AEC-Q101 qualification, and sub-1.1 mm height are critical design constraints.
Technical Context
The TPC36AHM3/87A employs passivated anisotropic rectifier technology optimized for junction stability under repetitive surge stress. Its unidirectional architecture provides forward conduction path during overvoltage events while maintaining low leakage (<1 μA at 30.8 V, 25 °C) and tight VBR tolerance (±5 %).
Thermally rated for TJ,max = 185 °C and qualified to AEC-Q101, it supports automotive under-hood applications. The TO-277A (SMPC) package enables automated placement with MSL Level 1 moisture sensitivity and matte tin-plated terminals compliant with J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - sustains single high-energy surges per ISO 7637-2 or IEC 61000-4-5 without failure |
| Standoff Voltage (VWM) | 30.8 V - maximum continuous reverse voltage before significant leakage; sets operating margin vs. 24 V nominal rail |
| Breakdown Voltage (VBR) | 34.2–37.8 V at 1 mA - defines onset of avalanche clamping; ±5 % tolerance ensures predictable turn-on |
| Clamping Voltage (VC) | 49.9 V at 30.1 A - limits peak voltage seen by downstream ICs during 10/1000 µs surge |
| Junction Temperature Range | −65 °C to +185 °C - enables deployment in engine control units and industrial motor drives |
| Package | TO-277A (SMPC) - 3-pin surface-mount package with 1.1 mm typical height and 2.2 mm x 3.7 mm footprint |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
TO-277A (SMPC) is a 3-terminal surface-mount package with cathode-anode-cathode configuration. Its low profile (1.1 mm height) and 2.2 mm × 3.7 mm body support high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 2) | Forward current input / surge return path | Connected to protected line's ground or low-side reference; carries full IPPM during clamping |
| Cathode 1 (Pin 1) | High-side connection to protected circuit | Interfaces directly with 24 V rail or signal line; forms primary clamping junction with Anode |
| Cathode 2 (Pin 3) | Redundant cathode / thermal enhancement | Electrically tied to Cathode 1 internally; improves heat spreading and surge current sharing |
Key Features
| Feature | Design Value |
|---|---|
| 185 °C junction rating | Enables operation in under-hood automotive environments without derating at 125 °C ambient |
| 1.1 mm typical height | Reduces board clearance issues in stacked modules and compact ECUs |
| MSL Level 1 | Eliminates bake requirements prior to reflow, supporting standard SMT processes |
| Halogen-free & RoHS-compliant | Meets automotive OEM material compliance mandates (e.g., GMW3172, Ford WSS-M99P9999-A1) |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., load dump, inductive kick) |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protects microcontroller I/O and CAN transceiver power rails from load-dump and jump-start transients in 24 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed at 24 V input filter stage, acting as first-line transient shunt before LDOs and regulators. Use Value: Clamps 120 V/100 ms load dump to ≤49.9 V, preventing damage to downstream 3.3 V/5 V logic and ensuring ASIL-B functional safety compliance. |
Use Scenario: Shields 24 V digital input channels from field-wiring induced surges caused by relay coil switching and motor contactors. IC Role / Device Role / Timing Role: Primary overvoltage clamp on isolated input front-end, positioned after optocoupler but before Schmitt trigger conditioning. Use Value: Limits transient energy to <15 mJ per pulse, preserving input protection diodes and enabling >100 k-cycle surge endurance per IEC 61000-4-5 Level 4. |
| Telecom Remote Radio Head (RRH) | Consumer Appliance Motor Drive Board |
Use Scenario: Guards DC power feed (−48 V) and RS-485 control lines against lightning-induced surges in outdoor base station cabinets. IC Role / Device Role / Timing Role: Bidirectionally referenced unidirectional TVS used in conjunction with series impedance to protect line drivers and power converters. Use Value: Withstands 1500 W peak pulse without degradation, meeting GR-1089-CORE telecom immunity requirements for AC/DC power inputs. |
Use Scenario: Suppresses commutation spikes from brushed DC motors in washing machine and HVAC blower control boards. IC Role / Device Role / Timing Role: Rail-to-rail clamping device across motor H-bridge supply, activated within <1 ns of overvoltage detection. Use Value: Reduces MOSFET VDS stress by 35 % during 50 A inductive turn-off, extending FET lifetime and eliminating snubber losses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A-E3/5A (Vishay) | Lower PPPM (400 W), SMA package (2.5 mm height), VWM = 33 V, VC = 53.3 V at 7.5 A | Targeted for cost-sensitive consumer electronics; lacks AEC-Q101 and 185 °C rating | Select when space allows taller profile and automotive qualification is not required |
| TPC33AHM3/87A (Vishay) | VWM = 28.2 V, VBR = 31.4–34.7 V, VC = 45.7 V at 32.8 A - lower clamping voltage but reduced standoff margin for 24 V systems | Better suited for 12 V–24 V hybrid rails where tighter clamping is prioritized over margin | Prefer when protecting 3.3 V logic powered from regulated 5 V derived from 24 V, requiring lower VC |
Compared with SMAJ33A-E3/5A, TPC36AHM3/87A delivers 275 % higher surge power handling and automotive qualification; versus TPC33AHM3/87A, it trades 2.6 V higher VWM for 4.2 V higher VC, optimizing for 24 V system margin over absolute clamping level.
Availability
TPC36AHM3/87A is available at Aetrix Electronics and suitable for automotive ECU designs, industrial PLC input protection, telecom power interface hardening, and appliance motor drive surge suppression requiring stable component supply across multi-year production cycles.
Supply support for TPC36AHM3/87A 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 MOSFETs for high-reliability applications.
The TPC36AHM3/87A belongs to Vishay's PAR® series of surface-mount TVS diodes, engineered specifically for automotive and industrial transient suppression where AEC-Q101 compliance, high-temperature operation, and low-profile packaging are mandatory.
FAQ
What is the maximum clamping voltage of the TPC36AHM3/87A under standard test conditions?
The TPC36AHM3/87A has a maximum clamping voltage (VC) of 49.9 V when subjected to a 10/1000 µs surge current pulse of 30.1 A. This value is measured per IEC 61000-4-5 and defines the peak voltage imposed on protected circuitry during worst-case transient events. The TPC36AHM3/87A maintains this clamping performance across its full operating temperature range up to +185 °C junction temperature.
Is the TPC36AHM3/87A qualified for automotive applications?
Yes, the TPC36AHM3/87A is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood automotive applications such as engine control units, transmission control modules, and ADAS power supplies. Its TO-277A package meets MSL Level 1 and uses halogen-free, RoHS-compliant materials aligned with major OEM material specifications.
What does the "HM3/87A" suffix indicate in TPC36AHM3/87A?
The "HM3" denotes Vishay's halogen-free, RoHS-compliant, AEC-Q101-qualified base construction, while "87A" specifies the packaging format: 13-inch diameter plastic tape and reel with 6500 units per reel. This ordering code ensures traceability to manufacturing lot, environmental compliance, and automated SMT compatibility without requiring pre-bake processing.
How does the TO-277A (SMPC) package of the TPC36AHM3/87A differ from standard SMA or SMB packages?
The TO-277A (SMPC) package of the TPC36AHM3/87A measures 2.2 mm × 3.7 mm with a typical height of 1.1 mm - significantly lower than SMA (4.5 mm × 2.7 mm × 2.2 mm) and SMB (4.6 mm × 3.6 mm × 2.3 mm). Its three-terminal cathode-anode-cathode layout improves thermal spreading and surge current handling, while MSL Level 1 rating eliminates moisture sensitivity concerns during reflow.
Can the TPC36AHM3/87A be used in bidirectional protection configurations?
No, the TPC36AHM3/87A is strictly unidirectional and must be oriented with cathode toward the protected line and anode to ground. For bidirectional protection, two TPC36AHM3/87A devices may be connected in series opposing configuration, but this increases board area and cost; dedicated bidirectional TVS devices like the TPSMB33CA are recommended instead.
TPC36AHM3/87A 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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 ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-277A (SMPC)
TPC36AHM3/87A FAQ
1.How can I place an order for TPC36AHM3/87A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC36AHM3/87A 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 TPC36AHM3/87A reliable?
The price and inventory of TPC36AHM3/87A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC36AHM3/87A is usually 5 days.
3.What payment methods are accepted for TPC36AHM3/87A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC36AHM3/87A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC36AHM3/87A?
TPC36AHM3/87A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC36AHM3/87A 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 TPC36AHM3/87A?
For technical support, including TPC36AHM3/87A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC36AHM3/87A requirements.
6.How does Aetrix verify that TPC36AHM3/87A is sourced from the original manufacturer or authorized distributors?
All TPC36AHM3/87A 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 TPC36AHM3/87A meets industry standards.
7.What is the process for return or replacement of TPC36AHM3/87A?
All TPC36AHM3/87A units undergo pre-shipment inspection (PSI). If there is an issue with TPC36AHM3/87A, 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 TPC36AHM3/87A part is unused and in its original packaging.
Return procedure for TPC36AHM3/87A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC36AHM3/87A Tags
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