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Vishay General Semiconductor - Diodes Division TPSMC27AHE3_A/I
- Part No.:
- TPSMC27AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC27AHE3_A/I.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,143
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Product details
Overview
TPSMC27AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power rails and signal lines. It features a 27 V breakdown voltage (VBR = 25.7–28.4 V at 1 mA), 23.1 V stand-off voltage (VWM), 37.5 V clamping voltage (VC) at 40 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - ideal for automotive power supply rail protection.
For engineers reviewing the TPSMC27AHE3_A/I datasheet, TPSMC27AHE3_A/I pinout, TPSMC27AHE3_A/I application, or TPSMC27AHE3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, SMC (DO-214AB) package compatibility, unidirectional polarity, low clamping ratio (VC/VBR ≈ 1.39), and high surge current capability (IPPM = 40 A) under standardized transients.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable breakdown characteristics across temperature and lifetime. Its 185 °C maximum junction temperature and MSL Level 1 rating support reflow soldering at 260 °C and enable use in under-hood automotive environments without derating penalties.
The device responds to transients in <1 ps with low incremental surge resistance, delivering precise clamping during 10/1000 µs surges. Its unidirectional configuration protects against positive-going transients only, requiring correct orientation relative to circuit polarity and grounding scheme.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 25.7 V / 27.0 V / 28.4 V at 1 mA - defines reliable conduction onset under ESD/EFT stress |
| VWM | 23.1 V - maximum continuous reverse voltage before leakage exceeds 1 µA |
| VC @ IPPM | 37.5 V at 40 A - clamped voltage during 1500 W transient, limiting downstream IC stress |
| PPPM | 1500 W (10/1000 µs) - peak surge power handling per single event, validated on 8 mm × 8 mm copper pads |
| TJ max. | +185 °C - enables operation in high-temp automotive zones without thermal shutdown |
| Polarity | Unidirectional - protects against positive transients only; cathode band denotes terminal polarity |
| Qualification | AEC-Q101 qualified - certified for automotive electronic systems per stress test requirements |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic case with matte tin-plated leads. Cathode indicated by color band. Compliant with UL 94 V-0 flammability rating and J-STD-002/JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path | Connected to system ground or low-impedance reference; carries full surge current during clamping |
| Cathode | Protected line connection | Connected to line being protected (e.g., 24 V rail); voltage referenced to anode during clamp |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Stable VBR drift <±5% over 1000 hrs at 150 °C, ensuring long-term reliability in harsh environments |
| 1500 W peak pulse power (10/1000 µs) | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Combination Wave surges without degradation |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes voltage overshoot on protected ICs, reducing risk of latch-up or gate oxide damage |
| MSL Level 1, 260 °C peak reflow | Enables standard lead-free SMT assembly without pre-baking or special handling |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive power electronics including body control modules and ADAS sensor interfaces |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in engine control units (ECUs) against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between battery feed and DC/DC converter input. Use Value: Clamps transients to ≤37.5 V, preventing damage to downstream regulators rated for 40 V absolute max. | Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional TPSMC27AHE3_A/I guards against positive spikes on 20–28 V sensor excitation lines. Use Value: Limits voltage excursion to 37.5 V during 40 A surge, preserving ADC front-end integrity and calibration stability. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Supplies |
Use Scenario: Shielding PoE-powered equipment (e.g., IP cameras) from induced surges on 24–30 V DC distribution lines. IC Role / Device Role / Timing Role: Standoff-rated TVS placed upstream of hot-swap controllers and DC/DC stages. Use Value: Withstands repeated 1500 W pulses while maintaining VWM = 23.1 V, ensuring no false triggering during normal operation. | Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role / Timing Role: Mounted across motor terminals or on H-bridge supply rails to absorb inductive kickback. Use Value: Fast response (<1 ps) and low dynamic impedance limit spike amplitude to safe levels for MOSFET gate drivers and microcontrollers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A | Lower PPPM (400 W), higher VC/VBR ratio (≈1.5), same SMC package | Not AEC-Q101 qualified; limited to commercial/industrial use | Select when cost sensitivity outweighs automotive qualification and surge margin requirements |
| TPSMC27AHM3_A/I | Halogen-free variant; identical electrical specs and AEC-Q101 qualification | Required for RoHS-compliant, halogen-free BOMs in EU automotive programs | Choose for compliance-critical designs where material content must meet JESD201 Class 2 whisker resistance and halogen-free mandates |
Compared with SMAJ28A and TPSMC27AHM3_A/I, the TPSMC27AHE3_A/I delivers superior surge robustness (1500 W vs. 400 W), tighter clamping (37.5 V vs. ~42 V), and verified automotive qualification - making it the preferred choice for safety-critical 24 V systems where failure modes demand highest reliability.
Availability
TPSMC27AHE3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom DC feeds, and consumer appliance motor drives requiring stable component supply, AEC-Q101 assurance, and high-temperature operational continuity.
Supply support for TPSMC27AHE3_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 devices, and optoelectronics with emphasis on reliability, thermal performance, and automotive-grade qualification.
The TPSMC series belongs to Vishay's PAR® family of high-power TVS diodes, engineered specifically for demanding automotive and industrial applications where sustained high-temperature operation and repeatable surge immunity are mandatory.
FAQ
What is the maximum operating temperature for TPSMC27AHE3_A/I?
The TPSMC27AHE3_A/I has a maximum junction temperature (TJ) of +185 °C, enabling reliable operation in under-hood automotive environments and high-power industrial enclosures without thermal derating. This rating is validated per AEC-Q101 stress testing and supported by its passivated anisotropic rectifier structure. The TPSMC27AHE3_A/I maintains specified VBR and VC performance across the full -65 °C to +185 °C range.
Is TPSMC27AHE3_A/I AEC-Q101 qualified?
Yes, the TPSMC27AHE3_A/I is fully AEC-Q101 qualified, as confirmed by Vishay's documentation (Document Number: 88407, Revision: 19-Jan-2024). The HE3 suffix explicitly denotes AEC-Q101 qualification and RoHS compliance. This certification covers stress tests including high-temperature operating life, temperature cycling, and surge robustness - making the TPSMC27AHE3_A/I suitable for automotive powertrain and chassis applications.
What does the "HE3" suffix mean in TPSMC27AHE3_A/I?
The "HE3" suffix in TPSMC27AHE3_A/I indicates RoHS-compliant construction and AEC-Q101 qualification. It distinguishes this variant from non-automotive versions (e.g., base P/N without HE3/HM3) and confirms compliance with JESD201 Class 2 whisker resistance, MSL Level 1 reflow capability (260 °C peak), and automotive reliability requirements. The "A/I" denotes 13-inch tape-and-reel packaging with 3500 units per reel.
How does TPSMC27AHE3_A/I compare to SMAJ28A in surge handling?
The TPSMC27AHE3_A/I provides 1500 W peak pulse power (10/1000 µs), more than 3.7× higher than SMAJ28A's 400 W rating. Its clamping voltage is 37.5 V at 40 A versus ~42 V for SMAJ28A at 28.3 A, resulting in lower energy dissipation in protected circuits. Unlike SMAJ28A, the TPSMC27AHE3_A/I is AEC-Q101 qualified and rated for 185 °C operation - critical for automotive deployment where SMAJ28A is restricted to commercial/industrial use.
What is the clamping voltage of TPSMC27AHE3_A/I at its rated surge current?
The clamping voltage (VC) of TPSMC27AHE3_A/I is 37.5 V measured at its peak pulse current (IPPM) of 40 A under the standard 10/1000 µs waveform. This value is guaranteed per Vishay's Electrical Characteristics table (Document 88407, page 2) and reflects the maximum voltage seen by downstream components during worst-case transient events - a key parameter for ensuring compatibility with 40 V-rated ICs and MOSFETs in the protected circuit.
TPSMC27AHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- 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:
- DO-214AB (SMCJ)
TPSMC27AHE3_A/I FAQ
1.How can I place an order for TPSMC27AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC27AHE3_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 TPSMC27AHE3_A/I reliable?
The price and inventory of TPSMC27AHE3_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 TPSMC27AHE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMC27AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC27AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC27AHE3_A/I?
TPSMC27AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC27AHE3_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 TPSMC27AHE3_A/I?
For technical support, including TPSMC27AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC27AHE3_A/I requirements.
6.How does Aetrix verify that TPSMC27AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMC27AHE3_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 TPSMC27AHE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMC27AHE3_A/I?
All TPSMC27AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC27AHE3_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 TPSMC27AHE3_A/I part is unused and in its original packaging.
Return procedure for TPSMC27AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC27AHE3_A/I Tags
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