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Vishay General Semiconductor - Diodes Division TPC9.1HM3/87A
- Part No.:
- TPC9.1HM3/87A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC9.1HM3/87A.pdf
- Description:
- TVS DIODE 7.37VWM 13.8VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:6,116
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Product details
Overview
TPC9.1HM3/87A from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in SMPC (TO-277A) package, designed for high-reliability automotive and industrial electronics protection. It features a breakdown voltage of 8.65–9.55 V at 1.0 mA, clamping voltage of 13.4 V at 112 A peak pulse current, and operates from −65 °C to +185 °C junction temperature.
For engineers reviewing the TPC9.1HM3/87A datasheet, TPC9.1HM3/87A pinout, TPC9.1HM3/87A application, or TPC9.1HM3/87A equivalent, key selection criteria include its AEC-Q101 qualification, 1.1 mm profile for space-constrained PCBs, low incremental surge resistance, and suitability for protecting MOSFETs and sensor signal lines against inductive switching transients.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with junction passivation optimized for stable breakdown behavior under repetitive surge stress. Its unidirectional architecture enables precise clamping on positive-going transients while maintaining low leakage (<50 µA at 7.78 V) and fast response time.
The device is rated for 1500 W peak pulse power (10/1000 µs waveform), supports 200 A non-repetitive forward surge current (8.3 ms half-sine), and exhibits a typical VBR temperature coefficient of +0.060 %/°C - enabling predictable clamping across wide thermal operating ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 8.65 / 9.10 / 9.55 V at 1.0 mA - defines precise clamping onset threshold for overvoltage events |
| VWM | 7.78 V - maximum continuous reverse working voltage before leakage rises significantly |
| VC @ IPPM | 13.4 V at 112 A - clamped voltage during 1500 W surge, limiting downstream IC stress |
| PPPM | 1500 W (10/1000 µs) - peak surge energy handling capability for automotive load-dump immunity |
| TJ max | +185 °C - enables operation in under-hood automotive environments without derating |
| Package | SMPC (TO-277A) - surface-mount, low-profile (1.1 mm height), AEC-Q101 qualified |
| Leakage @ VWM | 50 µA at 25 °C - ensures minimal standby power loss in always-on systems |
Pinout & Package
Package: SMPC (TO-277A), 3-terminal surface-mount case with cathode band marking. Dimensions conform to JEDEC TO-277A standard: 4.80 × 3.70 × 1.10 mm (L × W × H), matte tin-plated leads, MSL Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 3) | Current entry point during clamping | Connected to protected line (e.g., power rail or signal); conducts surge current to cathode |
| Cathode 1 (Pin 1) | Common cathode terminal | Internally tied to Cathode 2; provides low-inductance path to ground or reference plane |
| Cathode 2 (Pin 2) | Common cathode terminal | Dual-cathode configuration reduces effective series inductance for faster transient response |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock |
| Junction passivation | Stabilizes VBR over lifetime and prevents parametric drift under repeated surge stress |
| Low profile (1.1 mm height) | Enables use in ultra-thin modules and stacked PCB assemblies where Z-axis space is constrained |
| MSL Level 1 | Zero floor life limitation - can be stored indefinitely before reflow soldering without baking |
| Halogen-free & RoHS-compliant | Meets global environmental compliance requirements for automotive and industrial end equipment |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against ISO 7637-2 pulse 1 (inductive switch-off) and pulse 5a (load dump). IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp transients before they reach LDOs or microcontrollers. Use Value: Clamps 1500 W surges to ≤13.4 V, preventing latch-up or permanent damage to downstream 5 V or 3.3 V logic. | Use Scenario: Safeguarding analog outputs of pressure or temperature sensors connected to PLC I/O modules. IC Role / Device Role / Timing Role: TVS mounted at connector interface to absorb ESD (IEC 61000-4-2) and cable-induced surges before reaching op-amp front-end. Use Value: Limits transient voltage to <13.4 V within nanoseconds, preserving signal integrity and avoiding ADC saturation or offset shift. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feed Protection |
Use Scenario: Secondary-side overvoltage suppression in USB-C PD adapters after synchronous rectification. IC Role / Device Role / Timing Role: TVS placed across output capacitor to absorb flyback spikes caused by transformer leakage inductance. Use Value: Withstands 200 A surge (8.3 ms) and clamps to 13.4 V, preventing overvoltage shutdown of USB-PD controller ICs. | Use Scenario: Protecting PoE-powered devices (e.g., IP cameras) from DC feed transients induced by switch-mode PSE controllers. IC Role / Device Role / Timing Role: TVS installed at PD input to shunt common-mode surges on 48 V DC pair before DC-DC converter input stage. Use Value: 185 °C max junction rating allows reliable operation in sealed enclosures with limited airflow and ambient up to 85 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A | Lower PPPM (400 W), SMA package (higher inductance), VC = 14.4 V @ 28.5 A | Not AEC-Q101 qualified; suited for consumer-grade, non-automotive designs | Select when cost sensitivity outweighs surge robustness and automotive qualification requirements |
| TPC9.1AHM3_A | Identical electrical specs and package; differs only in tape-and-reel packaging code (A vs. 87A) | No functional difference; both meet same AEC-Q101, RoHS, and halogen-free requirements | Preferred for new designs using 7" reel delivery; TPC9.1HM3/87A is legacy reel variant |
Compared with SMAJ9.0A, TPC9.1HM3/87A delivers 275 % higher surge power handling and automotive qualification; versus TPC9.1AHM3_A, it shares identical performance but reflects a different packaging revision - critical for traceability and procurement continuity in production programs.
Availability
TPC9.1HM3/87A is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface design, and telecom DC feed circuits requiring stable component supply and long-term lifecycle support.
Supply support for TPC9.1HM3/87A 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 optoelectronics with emphasis on reliability and automotive-grade validation.
The TPCx.xA series belongs to Vishay's PAR® family of high-power TVS diodes, engineered specifically for AEC-Q101-compliant transient protection in harsh automotive and industrial environments.
FAQ
What is the exact breakdown voltage range for TPC9.1HM3/87A?
The TPC9.1HM3/87A has a guaranteed breakdown voltage (VBR) range of 8.65 V to 9.55 V at 1.0 mA test current, with a nominal value of 9.10 V. This range is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet Document Number 89056, ensuring consistent clamping behavior across production lots.
Is TPC9.1HM3/87A qualified for automotive applications?
Yes, TPC9.1HM3/87A is AEC-Q101 qualified and explicitly rated for automotive use. It meets stringent requirements for temperature cycling, mechanical shock, and humidity testing, and is listed in the "Automotive grade" note of the official datasheet. Its 185 °C maximum junction temperature further supports under-hood deployment.
What does the 'HM3/87A' suffix indicate in TPC9.1HM3/87A?
The 'HM3' denotes Vishay's halogen-free, RoHS-compliant, AEC-Q101-qualified base package designation for the SMPC (TO-277A) outline. The '87A' is a revision code identifying the specific tape-and-reel packaging configuration - 13" diameter reel with 6500 units per reel, per the ordering information table in Document 89056.
How does TPC9.1HM3/87A compare to bidirectional TVS diodes?
TPC9.1HM3/87A is unidirectional and optimized for clamping positive transients on DC lines (e.g., 12 V power rails). Unlike bidirectional devices, it offers lower leakage (<50 µA) and tighter VBR tolerance, making it preferable for DC-coupled protection where reverse polarity is not expected - such as in automotive battery-fed systems.
What is the clamping voltage of TPC9.1HM3/87A under full-rated surge current?
At its peak pulse current (IPPM) of 112 A - corresponding to the 1500 W rating with a 10/1000 µs waveform - the TPC9.1HM3/87A clamps to a maximum of 13.4 V. This value is specified in the Electrical Characteristics table and verified per JEDEC test conditions, ensuring predictable overvoltage limiting during worst-case transients.
TPC9.1HM3/87A 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):
- 7.37V
- Voltage - Breakdown (Min):
- 8.19V
- Voltage - Clamping (Max) @ Ipp:
- 13.8V
- Current - Peak Pulse (10/1000µs):
- 109A
- 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)
TPC9.1HM3/87A FAQ
1.How can I place an order for TPC9.1HM3/87A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC9.1HM3/87A 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 TPC9.1HM3/87A reliable?
The price and inventory of TPC9.1HM3/87A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC9.1HM3/87A is usually 5 days.
3.What payment methods are accepted for TPC9.1HM3/87A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC9.1HM3/87A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC9.1HM3/87A?
TPC9.1HM3/87A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC9.1HM3/87A 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 TPC9.1HM3/87A?
For technical support, including TPC9.1HM3/87A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC9.1HM3/87A requirements.
6.How does Aetrix verify that TPC9.1HM3/87A is sourced from the original manufacturer or authorized distributors?
All TPC9.1HM3/87A 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 TPC9.1HM3/87A meets industry standards.
7.What is the process for return or replacement of TPC9.1HM3/87A?
All TPC9.1HM3/87A units undergo pre-shipment inspection (PSI). If there is an issue with TPC9.1HM3/87A, 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 TPC9.1HM3/87A part is unused and in its original packaging.
Return procedure for TPC9.1HM3/87A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC9.1HM3/87A Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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