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Vishay General Semiconductor - Diodes Division TPC20HM3/86A
- Part No.:
- TPC20HM3/86A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC20HM3/86A.pdf
- Description:
- TVS DIODE 16.2VWM 29.1VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:4,447
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Product details
Overview
TPC20HM3/86A 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 circuit protection. It features a 20 V nominal breakdown voltage (VBR = 19.0–21.0 V), 17.1 V standoff voltage (VWM), clamps at ≤27.7 V under 54.2 A peak pulse current, and operates up to +185 °C junction temperature.
For engineers reviewing the TPC20HM3/86A datasheet, TPC20HM3/86A pinout, TPC20HM3/86A application, or TPC20HM3/86A equivalent, key selection criteria include its AEC-Q101 qualification, low-profile 1.1 mm height, MSL Level 1 moisture sensitivity, and unidirectional surge suppression capability for MOSFET gate and sensor line protection.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for fast response (<300 μs pulse width) and low incremental surge resistance. Its clamping behavior is defined by a 10/1000 μs waveform with PPPM = 1500 W and IPPM = 54.2 A at TA = 25 °C.
The device is rated for TJ = –65 °C to +185 °C, meets JESD201 Class 2 whisker resistance, and features matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 19.0 / 20.0 / 21.0 V - ensures reliable breakdown initiation above system operating voltage while maintaining margin against false triggering |
| VWM | 17.1 V - maximum continuous reverse voltage the device blocks without significant leakage (≤1.0 μA at 25 °C) |
| VC @ IPPM | ≤27.7 V - clamping voltage during 54.2 A 10/1000 μs surge, limiting protected IC voltage stress |
| PPPM | 1500 W - peak pulse power handling per single non-repetitive transient event |
| TJ max | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| Package | SMPC (TO-277A) - surface-mount, 3-terminal, low-profile (1.1 mm typical height), AEC-Q101 qualified |
Pinout & Package
TPC20HM3/86A is housed in a 3-terminal SMPC (TO-277A) package with cathode band marking on terminal 1. The package conforms to JEDEC TO-277A outline and features matte tin-plated leads for robust solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Anode-side reference node for unidirectional clamping | Connected to protected line; conducts when transient exceeds VBR, shunting surge to ground via terminal 3 |
| 2 (Cathode) | Second cathode connection | Internally tied to terminal 1; provides parallel current path and thermal derating margin |
| 3 (Anode) | Common ground return | Connected to system ground; completes clamping path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| MSL Level 1 | Unlimited floor life at ≤30 °C/85 % RH - eliminates bake requirements before SMT assembly |
| Junction temperature rating | +185 °C maximum - supports placement near heat sources in engine control units and motor drives |
| Low profile (1.1 mm) | Enables use in space-constrained modules such as ADAS camera housings and compact ECUs |
Applications
| Automotive Powertrain ECU Protection | Industrial Motor Drive Gate Protection |
|---|---|
Use Scenario: Protecting microcontroller I/O and CAN transceiver lines from load dump and inductive switching transients in engine control units. IC Role / Device Role: Unidirectional TVS placed between signal line and chassis ground to clamp transients before they reach sensitive inputs. Use Value: With VC ≤27.7 V and 1500 W surge rating, TPC20HM3/86A limits voltage stress below 30 V, preserving 3.3 V/5 V logic integrity during ISO 7637-2 Pulse 5a events. | Use Scenario: Safeguarding high-side and low-side MOSFET gate drivers from Miller-induced voltage spikes in 3-phase inverters. IC Role / Device Role: TVS connected between gate and source terminals to suppress dv/dt-induced turn-on and prevent gate oxide damage. Use Value: Fast 300 μs response and low clamping voltage ensure gate voltage remains within ±20 V absolute maximum rating during switching transients. |
| Automotive Sensor Signal Line Protection | Telecom DC Power Input Protection |
Use Scenario: Shielding analog outputs of pressure, temperature, and position sensors from ESD and cable discharge events in vehicle cabins. IC Role / Device Role: Unidirectional TVS installed at connector interface to absorb contact discharge per ISO 10605 (30 kV air, 15 kV contact). Use Value: 1.0 μA leakage at 17.1 V VWM prevents signal offset in millivolt-level sensor outputs while providing 1500 W transient immunity. | Use Scenario: Protecting 24 V DC input stages of telecom base station power supplies from lightning-induced surges on outdoor cabling. IC Role / Device Role: Primary front-end TVS on DC input rail, coordinated with upstream MOVs and downstream fuses. Use Value: 54.2 A IPPM and 27.7 V clamping enable coordination with 30 V-rated input capacitors and 28 V DC-DC controllers without overstress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ20A | DO-214AC package; lower PPPM = 400 W; VC = 32.4 V @ 12.3 A | Not AEC-Q101 qualified; limited to commercial-grade industrial use | Select SMAJ20A only for cost-sensitive non-automotive designs where 1500 W surge immunity is not required. |
| TPC20H-M3/86A (same part, alternate suffix) | Identical electrical specs and packaging; differs only in tape-and-reel packaging code (86A vs. standard HM3_A) | No functional difference; same PCB layout and thermal performance | TPC20H-M3/86A is a packaging variant - verify reel size (7″ vs. 13″) and quantity (1500 vs. 6500) match production needs. |
Compared with SMAJ20A and TPC20H-M3/86A, the TPC20HM3/86A uniquely delivers automotive-grade 1500 W surge handling in a low-profile SMPC package, enabling direct replacement in AEC-Q101-compliant designs without layout change-whereas SMAJ20A lacks qualification and surge capacity, and TPC20H-M3/86A is functionally identical but requires packaging verification.
Availability
TPC20HM3/86A is available at Aetrix Electronics and suitable for automotive powertrain ECUs, industrial motor drives, telecom DC power inputs, and sensor interface circuits requiring stable component supply across extended temperature and high-surge environments.
Supply support for TPC20HM3/86A 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 qualification.
The TPC20HM3/86A belongs to Vishay's PAR® series of high-power surface-mount TVS diodes, engineered specifically for AEC-Q101-compliant transient suppression in harsh-environment automotive and industrial systems.
FAQ
What is the breakdown voltage tolerance for TPC20HM3/86A?
The TPC20HM3/86A has a specified breakdown voltage range of 19.0 V (minimum) to 21.0 V (maximum) at 1.0 mA test current, with 20.0 V nominal. This ±5 % tolerance ensures consistent clamping onset across production lots while maintaining sufficient margin above its 17.1 V standoff voltage. The parameter is measured per ANSI/IEEE C62.35 and validated during 100 % production testing.
Is TPC20HM3/86A suitable for bidirectional transient protection?
No, TPC20HM3/86A is strictly unidirectional and must not be used for bidirectional surge suppression. Its internal structure supports conduction only from cathode to anode during overvoltage events. For AC or dual-polarity signal lines, a dedicated bidirectional TVS such as TPC20H-M3/86A's counterpart in the same family (e.g., TPC20CA) is required. Using TPC20HM3/86A in reverse-biased configurations risks permanent failure.
Does TPC20HM3/86A require derating at elevated ambient temperatures?
Yes, TPC20HM3/86A must be derated above TA = 25 °C per Figure 2 in the datasheet. At 85 °C ambient, its peak pulse power drops to approximately 75 % of 1500 W (≈1125 W), and at 125 °C, it falls to ~50 %. Derating ensures junction temperature remains ≤185 °C during surge events. Layout practices-such as using ≥2 oz copper and thermal vias-directly impact achievable derated performance.
What is the meaning of the "86A" suffix in TPC20HM3/86A?
The "86A" suffix in TPC20HM3/86A denotes a specific tape-and-reel packaging configuration: 7-inch diameter reel, 1500 units per reel, with HM3 halogen-free, RoHS-compliant, and AEC-Q101-qualified construction. It is functionally identical to TPC20H-M3/A but reflects Vishay's internal ordering code for logistics and inventory tracking-not a revision or performance variant.
How does TPC20HM3/86A compare to standard SMAJ20A in terms of surge current handling?
TPC20HM3/86A delivers 54.2 A peak pulse current (IPPM) under 10/1000 μs waveform, more than 4× higher than SMAJ20A's 12.3 A. This enables TPC20HM3/86A to withstand ISO 7637-2 Pulse 5a load dump events without degradation, whereas SMAJ20A is limited to lower-energy transients. Both share 20 V nominal VBR, but TPC20HM3/86A's superior surge capacity stems from its larger die and SMPC package thermal mass.
TPC20HM3/86A 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):
- 16.2V
- Voltage - Breakdown (Min):
- 18V
- Voltage - Clamping (Max) @ Ipp:
- 29.1V
- Current - Peak Pulse (10/1000µs):
- 51.5A
- 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)
TPC20HM3/86A FAQ
1.How can I place an order for TPC20HM3/86A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC20HM3/86A 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 TPC20HM3/86A reliable?
The price and inventory of TPC20HM3/86A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC20HM3/86A is usually 5 days.
3.What payment methods are accepted for TPC20HM3/86A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC20HM3/86A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC20HM3/86A?
TPC20HM3/86A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC20HM3/86A 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 TPC20HM3/86A?
For technical support, including TPC20HM3/86A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC20HM3/86A requirements.
6.How does Aetrix verify that TPC20HM3/86A is sourced from the original manufacturer or authorized distributors?
All TPC20HM3/86A 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 TPC20HM3/86A meets industry standards.
7.What is the process for return or replacement of TPC20HM3/86A?
All TPC20HM3/86A units undergo pre-shipment inspection (PSI). If there is an issue with TPC20HM3/86A, 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 TPC20HM3/86A part is unused and in its original packaging.
Return procedure for TPC20HM3/86A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC20HM3/86A Tags
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