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Vishay General Semiconductor - Diodes Division TPSMC27AHE3/57T
- Part No.:
- TPSMC27AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC27AHE3/57T.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,744
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Product details
Overview
TPSMC27AHE3/57T from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection of sensitive electronics. It features a 27 V breakdown voltage (VBR = 25.7–28.4 V at 1 mA), 23.1 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 μs), clamping voltage of 37.5 V at 40 A, and operates up to +185 °C junction temperature - ideal for automotive power rail and sensor line protection.
For engineers reviewing the TPSMC27AHE3/57T datasheet, TPSMC27AHE3/57T pinout, TPSMC27AHE3/57T application, or TPSMC27AHE3/57T equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 rating, 1.0 μA max reverse leakage at VWM, and compatibility with high-reliability automotive and industrial PCB layouts requiring robust ESD/transient immunity.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of inductive switching transients and lightning-induced surges. Its junction design supports stable clamping performance across -65 °C to +185 °C operating range.
The device delivers 1500 W peak pulse power under standardized 10/1000 μs waveform conditions when mounted on 8.0 mm × 8.0 mm copper pads, with clamping voltage tightly controlled at 37.5 V at 40 A IPPM - critical for protecting downstream MOSFETs and ICs without overvoltage stress.
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 precise voltage threshold where avalanche conduction begins, ensuring reliable turn-on before system damage |
| VWM | 23.1 V - maximum continuous reverse working voltage; must exceed normal circuit operating voltage to prevent leakage or false triggering |
| PPPM | 1500 W (10/1000 μs) - peak transient energy absorption capacity; determines survivability against IEC 61000-4-5 Level 4 surges |
| VC @ IPPM | 37.5 V at 40 A - clamped voltage during worst-case surge; directly limits stress on protected ICs or MOSFETs |
| TJ max | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures without derating |
| IR @ VWM | 1.0 μA - ultra-low reverse leakage ensures minimal standby power loss and signal integrity on low-current sensor lines |
| AEC-Q101 | Qualified - confirms reliability validation per automotive stress test standards including HTGB, HTRB, and temperature cycling |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated terminals, RoHS-compliant and halogen-free (HE3 suffix), MSL Level 1 (260 °C reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes low-inductance surge current loop for optimal clamping |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR drift < ±5 % over lifetime and temperature, critical for long-term automotive module reliability |
| 1500 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 4 kV surge tests on 2 Ω/12 Ω coupling networks without degradation |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<100 ns), improving protection margin for high-speed interfaces |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain, body control, and ADAS modules requiring zero-failure field performance |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without preconditioning or special handling |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply lines in engine control units (ECUs) against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery input and DC/DC converter input stage. Use Value: Clamps transients to ≤37.5 V, preventing overvoltage shutdown or latch-up of downstream PMICs rated for 36 V max input. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors from EFT and surge coupling. IC Role / Device Role / Timing Role: TVS placed across signal and return paths at connector entry point. Use Value: Sub-1 ns response ensures clamping before transient propagates into precision op-amp or ADC front-end stages. |
| Telecom Line Card Surge Suppression | Consumer Power Adapter Input Protection |
|
Use Scenario: Safeguarding Ethernet PHY power pins and bias rails in PoE-powered switches against lightning-induced common-mode surges. IC Role / Device Role / Timing Role: TVS connected between VDD and GND on isolated DC/DC bias windings. Use Value: 185 °C TJ rating allows placement near hot-running magnetics without thermal derating of surge capability. |
Use Scenario: Adding secondary-level surge immunity to AC-DC adapter primary-side rectifier outputs before bulk capacitor. IC Role / Device Role / Timing Role: Unidirectional TVS installed across bridge rectifier output to absorb switching spikes and line surges. Use Value: 1.0 μA leakage at 23.1 V ensures no measurable impact on no-load efficiency or standby power compliance (e.g., DOE Level VI). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ27A | Lower PPPM (400 W), same VBR range, SMA package (smaller footprint, lower thermal mass) | Limited to consumer-grade or low-energy industrial I/O; insufficient for automotive load dump | Select only if space-constrained and surge threat level is ≤IEC 61000-4-5 Level 2 |
| TPSMC27AHM3/57T | Identical electrical specs; HM3 suffix denotes halogen-free construction (vs. HE3's RoHS-only) | Required for strict environmental compliance in EU automotive Tier 1 supply chains | Choose HM3 when halogen-free certification is mandated by OEM specification |
Compared with SMAJ27A and TPSMC27AHM3/57T, the TPSMC27AHE3/57T offers superior surge robustness (1500 W vs. 400 W) and automotive qualification out-of-box, while maintaining identical pinout and layout compatibility with its HM3 variant - enabling direct material substitution where halogen content is not restricted.
Availability
TPSMC27AHE3/57T is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor transmitters, telecom line cards, and consumer power adapters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TPSMC27AHE3/57T 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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive applications.
The TPSMC27AHE3/57T belongs to Vishay's PAR® series of high-power TVS diodes, engineered specifically for AEC-Q101-compliant transient protection in harsh-environment electronic systems.
FAQ
What is the clamping voltage of the TPSMC27AHE3/57T at its rated peak pulse current?
The TPSMC27AHE3/57T 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 JEDEC standards and ensures predictable overvoltage limiting for protected circuits. The TPSMC27AHE3/57T maintains this clamping performance across its full operating temperature range, making it suitable for under-hood automotive use where thermal stability is critical.
Is the TPSMC27AHE3/57T qualified for automotive applications?
Yes, the TPSMC27AHE3/57T is AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code suffix "HE3". This qualification covers stress tests including high-temperature reverse bias, high-temperature operating life, and temperature cycling - validating its suitability for automotive powertrain, body electronics, and ADAS modules. The TPSMC27AHE3/57T meets all requirements for deployment in safety-critical vehicle subsystems.
What does the "HE3" suffix mean in TPSMC27AHE3/57T?
The "HE3" suffix in TPSMC27AHE3/57T indicates RoHS-compliant construction and AEC-Q101 qualification. It also specifies matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, plus passing JESD 201 Class 2 whisker testing. The "57T" denotes tape-and-reel packaging in 13-inch reels (3500 pcs), per Vishay's preferred delivery mode for this base part number.
How does the TPSMC27AHE3/57T compare to bidirectional TVS diodes in surge protection?
The TPSMC27AHE3/57T is unidirectional and optimized for DC power line protection where reverse voltage is not expected - offering lower leakage (1.0 μA at VWM) and tighter VBR tolerance than equivalent bidirectional devices. Unlike bidirectional TVS diodes, the TPSMC27AHE3/57T cannot protect AC signals or dual-polarity rails; its design prioritizes efficiency and precision in automotive and industrial DC systems.
What is the maximum operating temperature for the TPSMC27AHE3/57T?
The TPSMC27AHE3/57T has a maximum junction temperature (TJ) rating of +185 °C, verified per Vishay's datasheet revision 19-Jan-2024. This enables reliable operation in high-ambient environments such as engine compartments or enclosed industrial drives. Derating curves in Figure 2 confirm usable power dissipation down to 50 % of rated PPPM at 150 °C ambient, supporting robust thermal design margins.
TPSMC27AHE3/57T 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)
TPSMC27AHE3/57T FAQ
1.How can I place an order for TPSMC27AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC27AHE3/57T 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 TPSMC27AHE3/57T reliable?
The price and inventory of TPSMC27AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC27AHE3/57T is usually 5 days.
3.What payment methods are accepted for TPSMC27AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC27AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC27AHE3/57T?
TPSMC27AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC27AHE3/57T 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 TPSMC27AHE3/57T?
For technical support, including TPSMC27AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC27AHE3/57T requirements.
6.How does Aetrix verify that TPSMC27AHE3/57T is sourced from the original manufacturer or authorized distributors?
All TPSMC27AHE3/57T 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 TPSMC27AHE3/57T meets industry standards.
7.What is the process for return or replacement of TPSMC27AHE3/57T?
All TPSMC27AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC27AHE3/57T, 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 TPSMC27AHE3/57T part is unused and in its original packaging.
Return procedure for TPSMC27AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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