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Vishay General Semiconductor - Diodes Division TPC27AHM3/86A
- Part No.:
- TPC27AHM3/86A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC27AHM3/86A.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:7,847
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Product details
Overview
TPC27AHM3/86A 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 electronics protection. It features a breakdown voltage of 25.7–28.4 V at 1 mA, clamping voltage of 37.5 V at 40 A peak pulse current, and operates up to 185 °C junction temperature.
For engineers reviewing the TPC27AHM3/86A datasheet, TPC27AHM3/86A pinout, TPC27AHM3/86A application, or TPC27AHM3/86A equivalent, key selection criteria include unidirectional surge clamping performance, AEC-Q101 qualification, low-profile 1.1 mm height, and compatibility with automated SMT placement on power rails and sensor signal lines.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable breakdown behavior and low incremental surge resistance under repetitive 10/1000 µs transients. Its junction temperature rating of 185 °C enables operation in under-hood automotive environments and high-power industrial control modules.
The device exhibits fast response time (<1 ns), meets MSL Level 1 per J-STD-020, and is halogen-free, RoHS-compliant, and qualified to AEC-Q101. Its SMPC (TO-277A) package supports high thermal dissipation while maintaining minimal PCB footprint and profile.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - sustains high-energy transients without failure in automotive load-dump or inductive switching events |
| Breakdown Voltage VBR | 25.7–28.4 V at 1 mA - defines precise clamping onset threshold for 24 V system rail protection |
| Clamping Voltage VC | 37.5 V at 40 A IPPM - limits downstream IC/MOSFET stress during worst-case surge conditions |
| Stand-off Voltage VWM | 23.1 V - ensures reliable blocking during normal 24 V nominal operation with margin before conduction |
| Junction Temperature Range | −65 °C to +185 °C - supports extended-temperature deployment in engine control units and industrial motor drives |
| Package | SMPC (TO-277A) - 3-pin surface-mount package with cathode-marked terminals and 1.1 mm typical height |
Pinout & Package
TPC27AHM3/86A is housed in the SMPC (TO-277A) package: a 3-terminal surface-mount case with cathode band marking on terminal 1 and 2, and anode on terminal 3. Dimensions conform to JEDEC TO-277A standard, with 0.189" × 0.134" footprint and 1.1 mm typical height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Transient current sink path | Connected to protected line (e.g., 24 V rail); conducts surge current to ground when VWM exceeded |
| 2 (Cathode) | Parallel cathode connection | Internally tied to Pin 1; enables dual-cathode layout for enhanced current sharing and thermal distribution |
| 3 (Anode) | Reference/ground return | Connected to system ground; completes clamping path; must be low-inductance for effective transient suppression |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Junction passivation | Stabilizes VBR over life and temperature; reduces parameter drift in harsh thermal environments |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive gate drivers |
| MSL Level 1 rating | Enables unlimited floor life and reflow compatibility without dry-pack or baking requirements |
| Halogen-free & RoHS-compliant | Meets environmental compliance mandates for global automotive and industrial OEM supply chains |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Digital I/O Module |
|---|---|
|
Use Scenario: Protecting 24 V power input and CAN transceiver supply rails against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between rail and ground to shunt surge energy away from MCU, CAN PHY, and LDO regulators. Use Value: Clamps 37.5 V at 40 A, limiting stress on 36 V-rated components while surviving 185 °C under-hood ambient. |
Use Scenario: Safeguarding 24 V digital input channels from field-wiring induced transients in factory automation systems. IC Role / Device Role / Timing Role: Front-end protection element on optocoupler input side, absorbing inductive kickback from solenoid/valve coils. Use Value: 1500 W peak power rating handles repetitive 10/1000 µs surges; dual-cathode design improves current sharing across multi-channel inputs. |
| Telecom Remote Radio Unit (RRU) | Consumer Appliance Motor Drive Board |
|
Use Scenario: Shielding 24 V bias supply of RF power amplifiers from lightning-induced surges on outdoor power feeds. IC Role / Device Role / Timing Role: Primary surge suppression device mounted at board edge, upstream of DC/DC converters and bias regulators. Use Value: 1.1 mm profile allows integration in space-constrained outdoor enclosures; AEC-Q101 qualification ensures long-term field reliability. |
Use Scenario: Securing microcontroller GPIO and half-bridge gate driver supplies in washing machine motor control boards. IC Role / Device Role / Timing Role: Rail-level TVS on 12–24 V logic supply, protecting against commutation spikes from BLDC motor back-EMF. Use Value: Fast <1 ns response prevents latch-up in CMOS logic; low leakage (<1 µA at 23.1 V) avoids standby current penalties. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A (onsemi) | Lower PPPM (400 W), higher VC (45.4 V at 8.8 A), SMA package (higher thermal resistance) | Not rated for automotive under-hood use; limited to commercial-temp consumer/industrial applications | Choose for cost-sensitive non-automotive designs where 1500 W surge capacity is not required |
| TPSMA6.8A (Vishay) | Same family architecture but lower voltage grade (6.8 V VBR), 400 W PPPM, SMA package | Lacks AEC-Q101 qualification and 185 °C TJ rating; unsuitable for automotive or high-temp industrial use | Select only for 5–12 V rail protection where full TPC series performance and qualification are unnecessary |
Compared with SMAJ28A and TPSMA6.8A, TPC27AHM3/86A delivers 3.75× higher surge power handling, tighter VBR tolerance (±5 % vs. ±10 %), and automotive-grade qualification-making it the only option among the three suitable for AEC-Q101-compliant 24 V system protection.
Availability
TPC27AHM3/86A is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC I/O modules, telecom remote radio units, and consumer appliance motor drive boards requiring stable component supply and long-term lifecycle support.
Supply support for TPC27AHM3/86A 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 MOSFETs for high-reliability power and protection applications.
The TPC series was developed specifically for AEC-Q101-compliant transient suppression in 12 V and 24 V automotive and industrial systems, emphasizing high-temperature operation, low-profile packaging, and robust surge endurance.
FAQ
What is the breakdown voltage range of the TPC27AHM3/86A?
The TPC27AHM3/86A has a guaranteed breakdown voltage (VBR) range of 25.7 V to 28.4 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures predictable clamping onset in 24 V systems and aligns with automotive load-dump protection standards. The nominal VBR is 27.0 V, and the temperature coefficient is +0.087 %/°C.
Is the TPC27AHM3/86A suitable for automotive under-hood applications?
Yes, the TPC27AHM3/86A is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it explicitly suitable for under-hood automotive applications such as engine control units, transmission control modules, and body control modules. Its SMPC package and passivated junction ensure reliability under thermal cycling and humidity exposure.
What does the HM3/86A suffix indicate in TPC27AHM3/86A?
The HM3/86A suffix denotes Vishay's halogen-free, RoHS-compliant SMPC package with matte tin-plated leads, JESD201 Class 2 whisker resistance, and MSL Level 1 rating. "HM3" specifies the base package variant, while "86A" indicates the revision code per Vishay's internal documentation (Document Number 89056, Revision 19-Apr-2022).
How does the dual-cathode configuration of TPC27AHM3/86A improve performance?
The TPC27AHM3/86A features two cathode terminals (Pins 1 and 2) internally tied together, enabling parallel PCB routing to reduce current density and thermal hot spots. This configuration lowers effective surge resistance and improves heat spreading across the package, directly supporting its 1500 W peak pulse power rating and sustained operation at elevated temperatures.
What is the maximum clamping voltage of TPC27AHM3/86A at rated surge current?
The TPC27AHM3/86A has a maximum clamping voltage (VC) of 37.5 V at 40 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per standard test methods and guarantees that protected downstream components (e.g., 36 V-rated regulators or CAN transceivers) remain within safe operating limits during surge events.
TPC27AHM3/86A 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):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 40A
- 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)
TPC27AHM3/86A FAQ
1.How can I place an order for TPC27AHM3/86A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC27AHM3/86A 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 TPC27AHM3/86A reliable?
The price and inventory of TPC27AHM3/86A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC27AHM3/86A is usually 5 days.
3.What payment methods are accepted for TPC27AHM3/86A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC27AHM3/86A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC27AHM3/86A?
TPC27AHM3/86A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC27AHM3/86A 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 TPC27AHM3/86A?
For technical support, including TPC27AHM3/86A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC27AHM3/86A requirements.
6.How does Aetrix verify that TPC27AHM3/86A is sourced from the original manufacturer or authorized distributors?
All TPC27AHM3/86A 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 TPC27AHM3/86A meets industry standards.
7.What is the process for return or replacement of TPC27AHM3/86A?
All TPC27AHM3/86A units undergo pre-shipment inspection (PSI). If there is an issue with TPC27AHM3/86A, 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 TPC27AHM3/86A part is unused and in its original packaging.
Return procedure for TPC27AHM3/86A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC27AHM3/86A Tags
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