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Vishay General Semiconductor - Diodes Division TPC27AHM3_A/I
- Part No.:
- TPC27AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC27AHM3_A/I.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:6,500
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Product details
Overview
TPC27AHM3_A/I from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in TO-277A (SMPC) package, designed for high-reliability automotive and industrial electronics protection. It features a breakdown voltage of 25.7–28.4 V at 1 mA, clamps to ≤37.5 V at 40 A peak pulse current, and operates up to +185 °C junction temperature.
For engineers reviewing the TPC27AHM3_A/I datasheet, TPC27AHM3_A/I pinout, TPC27AHM3_A/I application, or TPC27AHM3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, low-profile 1.1 mm height, MSL Level 1 rating, uni-directional polarity, and suitability for protecting MOSFETs, sensor signal lines, and IC power rails against inductive switching transients.
Technical Context
The TPC27AHM3_A/I employs passivated anisotropic rectifier technology optimized for fast transient response and low incremental surge resistance. Its junction design supports 185 °C operation and meets JESD201 Class 2 whisker testing requirements.
It delivers 1500 W peak pulse power per 10/1000 μs waveform with clamping voltage ≤37.5 V at 40 A, and exhibits ≤1.0 μA reverse leakage at 23.1 V stand-off voltage and 25 °C - critical for low-power sensor interface protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains high-energy surges without failure in automotive load-dump or inductive kick scenarios |
| Breakdown Voltage VBR | 25.7–28.4 V at 1 mA - ensures reliable triggering above system nominal voltage (e.g., 24 V rail) |
| Clamping Voltage VC | ≤37.5 V at IPPM = 40 A - limits downstream voltage stress on protected 3.3 V/5 V logic or gate drivers |
| Stand-off Voltage VWM | 23.1 V - provides margin below VBR while blocking normal operating voltage with <1.0 μA leakage |
| Junction Temperature Range | −65 °C to +185 °C - enables deployment in under-hood automotive, industrial motor control, and harsh-environment applications |
| Package | TO-277A (SMPC) - surface-mount, low-profile (1.1 mm), AEC-Q101 qualified, halogen-free, RoHS-compliant |
| Surge Current IPPM | 40 A - withstands repetitive 10/1000 μs transients per IEC 61000-4-5 Level 3/4 compliance testing |
Pinout & Package
TO-277A (SMPC) package: 3-terminal surface-mount device with cathode-anode-cathode configuration; 1.1 mm typical height; JEDEC-compliant outline; matte tin-plated leads solderable per J-STD-002/JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (Cathode) | Anode-side cathode connection | Common cathode node shared with Terminal 2; connects to protected circuit's positive rail or signal line |
| Terminal 2 (Anode) | Anode | Connects to ground or return path; defines uni-directional conduction path from cathode to anode during overvoltage |
| Terminal 3 (Cathode) | Anode-side cathode connection | Electrically tied to Terminal 1; enables dual-cathode layout for enhanced thermal and current-handling symmetry |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per AEC standard |
| Junction passivation | Reduces surface leakage and improves long-term stability under high-humidity and high-bias conditions |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C / 60 % RH - eliminates bake requirements before reflow assembly |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns rise time), improving clamping precision |
| Very fast response time | Sub-nanosecond turn-on enables protection of high-speed interfaces and sensitive gate drivers |
Applications
| Automotive Body Control Module (BCM) | Industrial Motor Drive Gate Protection |
|---|---|
Use Scenario: Protecting microcontroller I/O and LIN bus transceivers from load-dump and alternator ripple in 12 V/24 V vehicle systems. IC Role / Device Role: Uni-directional TVS placed between supply rail and ground to clamp positive transients. Use Value: Withstands 1500 W surges and operates up to +185 °C, meeting ISO 7637-2 Pulse 5a requirements without derating. |
Use Scenario: Shielding IGBT/MOSFET gate drivers from Miller-induced voltage spikes during high-di/dt switching. IC Role / Device Role: Low-capacitance, fast-response TVS across gate-to-source to prevent false turn-on. Use Value: Clamps to ≤37.5 V within nanoseconds, preserving gate oxide integrity and enabling robust 20 kHz+ PWM operation. |
| Automotive Sensor Signal Line Protection | Telecom Power Supply Input Stage |
Use Scenario: Safeguarding analog outputs of pressure, temperature, and position sensors connected to ECU inputs. IC Role / Device Role: Standoff-rated TVS on sensor output line to suppress ESD and cable discharge events. Use Value: 23.1 V VWM blocks normal 0–5 V or 0–10 V signals while leaking <1.0 μA - preserving ADC accuracy and offset stability. |
Use Scenario: Front-end transient suppression on 24 V/48 V telecom DC input before DC-DC conversion. IC Role / Device Role: Primary surge protector in series with input filter, rated for repeated 10/1000 μs surges. Use Value: 40 A IPPM and 1500 W PPPM meet GR-1089-CORE Level 3 immunity, reducing need for secondary clamping stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-E3/57T (Vishay) | Lower PPPM (400 W), SMA package (higher profile, 2.2 mm), VBR = 26.7–29.5 V, VC = 38.9 V @ 10.3 A | Not AEC-Q101 qualified; limited to commercial/industrial use; lower surge handling requires parallel devices for 1500 W duty | Select when cost sensitivity outweighs automotive qualification and space constraints allow larger footprint |
| TPC27AHM3_A/H (Vishay) | Identical electrical specs and TO-277A package; differs only in packaging - 7" tape/reel (1500 pcs) vs. 13" tape/reel (6500 pcs) | No functional or application difference; same thermal, electrical, and mechanical performance | Choose based on production volume and SMT line feeder compatibility - no design or reliability trade-offs |
Compared with SMAJ24A-E3/57T, TPC27AHM3_A/I offers triple the surge power rating and automotive qualification in a lower-profile package; compared with TPC27AHM3_A/H, it delivers identical protection performance with higher reel quantity for high-volume automated assembly.
Availability
TPC27AHM3_A/I is available at Aetrix Electronics and suitable for automotive body control modules, industrial motor drives, sensor interface circuits, and telecom power supply inputs requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.
Supply support for TPC27AHM3_A/I 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, MOSFETs, and optoelectronics with emphasis on reliability and application-specific optimization.
The TPC series is engineered for high-energy transient suppression in automotive and industrial environments, targeting AEC-Q101 compliance, extended temperature operation, and low-profile surface-mount integration.
FAQ
What is the maximum clamping voltage of the TPC27AHM3_A/I under peak surge conditions?
The TPC27AHM3_A/I clamps to a maximum of 37.5 V when subjected to its rated 40 A peak pulse current (10/1000 μs waveform). This value is guaranteed across the full operating temperature range and ensures protected downstream components - such as 3.3 V or 5 V logic ICs - remain within safe voltage limits during transient events. The TPC27AHM3_A/I achieves this with low incremental surge resistance and fast response characteristics inherent to its passivated anisotropic rectifier structure.
Is the TPC27AHM3_A/I qualified for automotive applications?
Yes, the TPC27AHM3_A/I is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood and chassis-mounted automotive systems. It passes stress tests including temperature cycling, highly accelerated life testing (HALT), and ESD per AEC-Q101 Rev D. The TO-277A package also meets JESD201 Class 2 whisker resistance and MSL Level 1, supporting lead-free reflow without preconditioning - all verified for the exact TPC27AHM3_A/I part number.
What does the "HM3_A/I" suffix indicate in TPC27AHM3_A/I?
The "HM3" denotes Vishay's halogen-free, RoHS-compliant, AEC-Q101-qualified TO-277A package variant; "A" is the revision code; "I" specifies the 13-inch tape-and-reel packaging format containing 6500 units. This distinguishes it from the "H" variant (7-inch reel, 1500 units), while maintaining identical electrical, thermal, and mechanical specifications. The TPC27AHM3_A/I is not a functional variant - only the packaging differs.
Can the TPC27AHM3_A/I be used in bi-directional protection circuits?
No, the TPC27AHM3_A/I is strictly uni-directional and must be connected with its anode to ground and cathodes to the protected line. It does not conduct in reverse bias beyond its specified leakage current and cannot suppress negative-going transients. For bi-directional protection, a separate device such as a bi-directional TVS (e.g., TPSMC24CA) or back-to-back uni-directional configuration would be required - the TPC27AHM3_A/I itself provides no reverse clamping capability.
What is the standoff voltage and leakage current specification for the TPC27AHM3_A/I at room temperature?
The TPC27AHM3_A/I has a maximum stand-off voltage (VWM) of 23.1 V and guarantees reverse leakage current ≤1.0 μA at that voltage and 25 °C ambient. This low leakage preserves signal integrity in high-impedance sensor interfaces and avoids loading on precision analog circuits. Leakage remains ≤10 μA even at elevated junction temperatures up to 150 °C, ensuring stable performance across automotive operating ranges.
TPC27AHM3_A/I 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:
- Active
- 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_A/I FAQ
1.How can I place an order for TPC27AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC27AHM3_A/I 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_A/I reliable?
The price and inventory of TPC27AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC27AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPC27AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC27AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC27AHM3_A/I?
TPC27AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC27AHM3_A/I 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_A/I?
For technical support, including TPC27AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC27AHM3_A/I requirements.
6.How does Aetrix verify that TPC27AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPC27AHM3_A/I 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_A/I meets industry standards.
7.What is the process for return or replacement of TPC27AHM3_A/I?
All TPC27AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPC27AHM3_A/I, 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_A/I part is unused and in its original packaging.
Return procedure for TPC27AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC27AHM3_A/I Tags
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