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Vishay General Semiconductor - Diodes Division TPC15HM3/87A
- Part No.:
- TPC15HM3/87A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC15HM3/87A.pdf
- Description:
- TVS DIODE 12.1VWM 22VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:7,881
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Product details
Overview
TPC15HM3/87A from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in SMPC (TO-277A) package, designed for clamping inductive load transients and ESD events on power rails and signal lines. It features a 15.0 V nominal breakdown voltage (VBR), 12.8 V stand-off voltage (VWM), 21.2 V maximum clamping voltage (VC) at 70.8 A peak pulse current, and AEC-Q101 qualification for automotive use.
For engineers reviewing the TPC15HM3/87A datasheet, TPC15HM3/87A pinout, TPC15HM3/87A application, or TPC15HM3/87A equivalent, key selection criteria include its 1500 W peak pulse power rating, 185 °C junction temperature capability, low-profile 1.1 mm height, unidirectional polarity, and compatibility with automated SMT placement in high-reliability automotive and industrial power rail protection.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and fast response time under 10/1000 µs transients. Its junction passivation enables stable operation up to TJ = 185 °C, supporting under-hood automotive environments and high-temperature industrial PCB layouts.
The device operates exclusively in unidirectional mode with cathode-anode polarity, requiring correct orientation during layout. Clamping performance is specified at IPPM = 70.8 A (10/1000 µs), delivering VC ≤ 21.2 V - critical for protecting 12 V and 15 V logic-supplied MOSFET gates and microcontroller I/O pins from load dump and ISO 7637-2 pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 15.0 V - ensures reliable triggering above normal 12 V system operating voltage while avoiding false trips |
| VWM | 12.8 V - maximum continuous reverse voltage before leakage exceeds 1 µA, compatible with 12 V automotive supply rails |
| VC @ IPPM | 21.2 V - clamping voltage limits downstream IC stress during 70.8 A surge, staying below typical 24 V absolute max ratings |
| PPPM | 1500 W - handles severe transients like ISO 7637-2 Pulse 5a (load dump) without failure |
| TJ max. | 185 °C - supports operation in engine control units and power distribution modules with minimal derating |
| Package | SMPC (TO-277A) - 3-pin surface-mount package with 0.189" x 0.134" footprint and 1.1 mm profile for space-constrained layouts |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 |
Pinout & Package
TPC15HM3/87A is housed in a 3-terminal SMPC (TO-277A) package with cathode-cathode-anode configuration. The package features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets MSL Level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reverse-biased terminal | Connected to protected line (e.g., 12 V rail); conducts when voltage exceeds VBR |
| 2 (Cathode) | Reverse-biased terminal | Internally tied to Pin 1; provides dual-cathode symmetry for thermal and current sharing |
| 3 (Anode) | Reference/ground terminal | Connected to system ground or low-impedance return path; completes clamping loop during surge |
Key Features
| Feature | Design Value |
|---|---|
| Passivated anisotropic rectifier technology | Enables stable VBR tolerance (±5 %) and low leakage (<1 µA at VWM) across temperature and life cycle |
| 185 °C junction rating | Eliminates need for thermal derating in under-hood ECUs and motor control units operating at ambient >125 °C |
| 1.1 mm typical height | Reduces board clearance issues in stacked power modules and compact ADAS sensor housings |
| MSL Level 1 rating | Allows unlimited floor life and reflow without baking, simplifying high-volume automotive SMT production |
| Halogen-free & RoHS-compliant | Meets automotive OEM material compliance requirements (e.g., GMW3172, Ford WSS-M99P9999-A1) |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive Gate Protection |
|---|---|
Use Scenario: Suppressing load dump transients on 12 V battery-fed ECUs in passenger vehicles per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input to clamp surges within 1 ns. Use Value: Limits voltage to ≤21.2 V during 70.8 A transients, preventing damage to upstream regulators and MCU power supplies. | Use Scenario: Protecting gate drivers of 600 V IGBTs in HVAC inverter drives from Miller-induced voltage spikes. IC Role / Device Role / Timing Role: TVS connected between gate and source to clamp dv/dt-induced overshoot during switching transitions. Use Value: Fast response and low VC prevent unintended IGBT turn-on and shoot-through failures in high-frequency PWM operation. |
| Telecom DC Power Input Protection | Automotive Sensor Signal Line Protection |
Use Scenario: Safeguarding 48 V PoE-powered base station equipment against lightning-induced surges on DC input lines. IC Role / Device Role / Timing Role: Primary clamping device on DC input before bulk capacitance and secondary regulation stages. Use Value: 1500 W rating absorbs multi-kA induced surges without degradation, maintaining uptime in outdoor telecom cabinets. | Use Scenario: Shielding LIN bus or analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in vehicle cabins. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at connector interface to shunt ESD energy before entering signal conditioning circuitry. Use Value: Sub-100 pF junction capacitance preserves signal integrity on 20 kbps LIN lines while meeting ISO 10605 30 kV contact discharge requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | Lower PPPM (400 W), SMA package (larger footprint, 2.2 mm height), VC = 24.4 V at 24.7 A | Not AEC-Q101 qualified; suitable for non-automotive consumer/industrial use only | Select when cost sensitivity outweighs automotive qualification and surge margin requirements |
| TPC15HM3/87A | Same family, identical electrical specs and packaging - direct revision variant of TPC15A with HM3 suffix and 87A marking | No functional difference; same AEC-Q101 qualification and SMPC footprint | Preferred for new designs requiring Vishay's latest halogen-free, whisker-tested construction |
Compared with SMAJ15A and TPC15A, TPC15HM3/87A delivers higher surge robustness (1500 W vs. 400 W), lower profile (1.1 mm vs. 2.2 mm), and automotive-grade reliability - making it optimal for next-generation power rail protection where space, temperature, and qualification are critical.
Availability
TPC15HM3/87A is available at Aetrix Electronics and suitable for automotive electronic control units, industrial motor drives, telecom power inputs, and sensor interface circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TPC15HM3/87A 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 Intertechnology is a global manufacturer of discrete semiconductors and passive components, specializing in high-reliability solutions for automotive, industrial, and computing markets.
TPC15HM3/87A belongs to Vishay's PAR® series of surface-mount TVS diodes, engineered specifically for high-power transient suppression in harsh-environment applications where AEC-Q101 qualification and 185 °C operation are mandatory.
FAQ
What is the exact breakdown voltage tolerance for TPC15HM3/87A?
The TPC15HM3/87A has a breakdown voltage (VBR) range of 14.3 V to 15.8 V at 1.0 mA test current, corresponding to a ±5 % tolerance around the nominal 15.0 V value. This specification is verified per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet Document Number 89056, Table on page 2. The tolerance remains stable across temperature due to its 0.076 %/°C temperature coefficient.
Is TPC15HM3/87A pin-compatible with earlier TPC15A variants?
Yes, TPC15HM3/87A shares identical SMPC (TO-277A) package dimensions, pinout (cathode-cathode-anode), and solder pad layout with all TPC15A family members. The "HM3/87A" suffix denotes Vishay's halogen-free, RoHS-compliant, AEC-Q101-qualified revision with enhanced whisker resistance - no PCB redesign is required when upgrading from legacy TPC15A parts.
Does TPC15HM3/87A meet ISO 7637-2 Pulse 5a requirements?
TPC15HM3/87A is rated for 1500 W peak pulse power with a 10/1000 µs waveform, which exceeds the energy requirement of ISO 7637-2 Pulse 5a (load dump) for 12 V systems. When used with appropriate PCB layout (short traces, low-inductance grounding), it clamps transients to ≤21.2 V at 70.8 A - well within the safe operating area for most automotive power management ICs referenced in the TPC15HM3/87A datasheet.
What is the maximum leakage current of TPC15HM3/87A at 12.8 V and 150 °C?
At VWM = 12.8 V and TJ = 150 °C, the TPC15HM3/87A exhibits a maximum reverse leakage current (ID) of 10 µA, as specified in the Electrical Characteristics table on page 2 of Vishay Document Number 89056. This elevated leakage remains within acceptable limits for battery-sensitive automotive modules, especially when paired with low-quiescent-current monitoring circuits.
Can TPC15HM3/87A be used in bidirectional configurations?
No, TPC15HM3/87A is strictly unidirectional and must be oriented with anode (Pin 3) toward ground and cathodes (Pins 1 & 2) toward the protected line. Bidirectional protection requires separate devices such as the SMBJ15CA or dedicated bidirectional TVS arrays. Attempting to use TPC15HM3/87A in reverse bias beyond its 12.8 V VWM will cause premature conduction and potential failure.
TPC15HM3/87A 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):
- 12.1V
- Voltage - Breakdown (Min):
- 13.5V
- Voltage - Clamping (Max) @ Ipp:
- 22V
- Current - Peak Pulse (10/1000µs):
- 68.2A
- 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)
TPC15HM3/87A FAQ
1.How can I place an order for TPC15HM3/87A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC15HM3/87A 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 TPC15HM3/87A reliable?
The price and inventory of TPC15HM3/87A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC15HM3/87A is usually 5 days.
3.What payment methods are accepted for TPC15HM3/87A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC15HM3/87A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC15HM3/87A?
TPC15HM3/87A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC15HM3/87A 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 TPC15HM3/87A?
For technical support, including TPC15HM3/87A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC15HM3/87A requirements.
6.How does Aetrix verify that TPC15HM3/87A is sourced from the original manufacturer or authorized distributors?
All TPC15HM3/87A 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 TPC15HM3/87A meets industry standards.
7.What is the process for return or replacement of TPC15HM3/87A?
All TPC15HM3/87A units undergo pre-shipment inspection (PSI). If there is an issue with TPC15HM3/87A, 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 TPC15HM3/87A part is unused and in its original packaging.
Return procedure for TPC15HM3/87A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC15HM3/87A Tags
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