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Vishay General Semiconductor - Diodes Division TPSMC27HE3/57T
- Part No.:
- TPSMC27HE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC27HE3/57T.pdf
- Description:
- TVS DIODE 21.8VWM 39.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,840
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Product details
Overview
TPSMC27HE3/57T 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 on power and signal lines. It features 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), 40.0 A peak pulse current (IPPM), and clamps to 37.5 V at rated surge. It is used to protect MOSFETs, ICs, and sensor signal lines in automotive power systems.
For engineers reviewing the TPSMC27HE3/57T datasheet, TPSMC27HE3/57T pinout, TPSMC27HE3/57T application, or TPSMC27HE3/57T equivalent, key selection criteria include unidirectional polarity, 185 °C maximum junction temperature, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.39), and MSL Level 1 moisture sensitivity rating.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-temperature stability and reliability under repetitive surge stress. Its junction design enables operation up to TJ = 185 °C and meets AEC-Q101 requirements for automotive under-hood applications.
The device delivers fast response time (<1 ns), low incremental surge resistance, and excellent clamping performance with VC = 37.5 V at IPPM = 40.0 A (10/1000 µs waveform). It is rated for 200 A non-repetitive forward surge current (8.3 ms half-sine) and exhibits <1.0 µA reverse leakage at VWM and 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 25.7 / 27.0 / 28.4 V at 1 mA - defines precise voltage threshold where avalanche conduction begins |
| VWM | 23.1 V - maximum continuous reverse operating voltage before significant leakage |
| VC @ IPPM | 37.5 V at 40.0 A - clamped voltage during 1500 W surge, limiting downstream stress |
| PPPM | 1500 W (10/1000 µs) - peak transient energy absorption capability per pulse |
| TJ max. | +185 °C - enables use in high-temperature environments including engine control units |
| Polarity | Unidirectional - protects against positive transients only; cathode band denotes protected line |
| MSL Rating | Level 1 (J-STD-020) - supports standard reflow without baking preconditioning |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Dimensions: 7.11 × 6.60 × 2.90 mm (L × W × H), cathode indicated by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge return path | Connected to ground or low-impedance reference; completes clamping loop during transient |
| Cathode | Protected line connection | Connected to line being safeguarded (e.g., 24 V rail or sensor output); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use with lifetime reliability under thermal cycling and humidity stress |
| 185 °C junction rating | Enables placement near heat sources (e.g., power converters) without derating penalties |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/5a surges and IEC 61000-4-5 combination wave events |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage exposure to downstream ICs while maintaining margin above VWM |
| MSL Level 1 | Eliminates pre-bake requirement for PCB assembly, reducing manufacturing cost and cycle time |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply rails in body control modules against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery input and DC-DC converter input stage. Use Value: Limits transient voltage to ≤37.5 V, preventing damage to 40 V-rated input capacitors and controller ICs. | Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC analog inputs. IC Role / Device Role / Timing Role: TVS placed across sensor output and ground to shunt ESD and cable discharge events. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) within nanoseconds, preserving signal integrity and ADC accuracy. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Protection |
Use Scenario: Guarding -48 V telecom power feeds against lightning-induced surges on outdoor cabinet wiring. IC Role / Device Role / Timing Role: Unidirectional TVS installed at power entry point before upstream fuse and filter network. Use Value: Absorbs 1500 W surge energy without failure, maintaining system uptime during storm conditions. | Use Scenario: Shielding microcontroller GPIOs driving small BLDC fans or solenoids in smart home appliances. IC Role / Device Role / Timing Role: TVS placed at motor driver output to suppress back-EMF spikes during commutation. Use Value: Prevents latch-up in 3.3 V logic by clamping inductive kick to <38 V, enabling robust field deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ27A | Lower PPPM = 600 W; same VBR range but SMB package (smaller footprint, lower thermal mass) | Not AEC-Q101 qualified; limited to commercial/industrial ambient (TJ max = 150 °C) | Select when board space is constrained and automotive qualification is not required. |
| TPSMC27AHM3/57T | Identical electrical specs; halogen-free molding compound and whisker-resistant plating (JESD 201 Class 2) | No functional difference; preferred for RoHS+halogen-free compliance programs | Choose for green manufacturing initiatives without sacrificing performance or qualification. |
Compared with SMBJ27A and TPSMC27AHM3/57T, the TPSMC27HE3/57T uniquely combines AEC-Q101 qualification, 185 °C operation, and 1500 W surge capacity in the SMC package-making it the only option among the three validated for under-hood automotive power rail protection.
Availability
TPSMC27HE3/57T is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, and telecom DC feed applications requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for TPSMC27HE3/57T 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 diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, high-temperature operation, and automotive-grade qualification.
The TPSMC27HE3/57T belongs to Vishay's PAR® series of high-power surface-mount TVS diodes, engineered specifically for robust transient suppression in harsh environments such as automotive engine compartments and industrial control cabinets.
FAQ
What is the breakdown voltage tolerance of the TPSMC27HE3/57T?
The TPSMC27HE3/57T has a breakdown voltage (VBR) range of 25.7 V to 28.4 V at 1 mA test current, corresponding to ±5% tolerance around the nominal 27 V rating. This tight tolerance ensures predictable clamping onset across production lots and supports reliable overvoltage margining in safety-critical designs like automotive ECUs.
Is the TPSMC27HE3/57T suitable for bidirectional transient protection?
No, the TPSMC27HE3/57T is unidirectional only, with cathode marked by a band and designed to clamp positive transients relative to ground. For bidirectional protection (e.g., data lines subject to ± surges), a dedicated bidirectional TVS such as the SMAJ27CA must be used instead of the TPSMC27HE3/57T.
Does the TPSMC27HE3/57T require derating at elevated ambient temperatures?
Yes, the TPSMC27HE3/57T must be derated above 25 °C ambient per Figure 2 in its datasheet. At 125 °C ambient, its peak pulse power drops to ~60% of the 1500 W rating at 25 °C. Designers must apply this derating curve when sizing the TPSMC27HE3/57T for high-temperature locations such as near power inductors or engine bays.
What is the maximum reverse leakage current of the TPSMC27HE3/57T at 25 °C and 150 °C?
At 25 °C and VWM = 23.1 V, the TPSMC27HE3/57T exhibits ≤1.0 µA reverse leakage. At 150 °C and the same voltage, leakage increases to ≤10 µA, as specified in the Electrical Characteristics table. This controlled leakage ensures minimal power loss in always-on automotive circuits while maintaining clamping readiness.
How does the TPSMC27HE3/57T compare to standard SMAJ-series TVS diodes in surge handling?
The TPSMC27HE3/57T delivers 1500 W peak pulse power (10/1000 µs), more than double the 600 W rating of the SMAJ27A in the smaller SMA package. Its larger SMC (DO-214AB) footprint provides superior thermal dissipation and higher IPPM (40.0 A vs. 19.9 A), making the TPSMC27HE3/57T better suited for high-energy automotive and industrial surge events.
TPSMC27HE3/57T 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):
- 21.8V
- Voltage - Breakdown (Min):
- 24.3V
- Voltage - Clamping (Max) @ Ipp:
- 39.1V
- Current - Peak Pulse (10/1000µs):
- 38.4A
- 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)
TPSMC27HE3/57T FAQ
1.How can I place an order for TPSMC27HE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC27HE3/57T 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 TPSMC27HE3/57T reliable?
The price and inventory of TPSMC27HE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC27HE3/57T is usually 5 days.
3.What payment methods are accepted for TPSMC27HE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC27HE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC27HE3/57T?
TPSMC27HE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC27HE3/57T 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 TPSMC27HE3/57T?
For technical support, including TPSMC27HE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC27HE3/57T requirements.
6.How does Aetrix verify that TPSMC27HE3/57T is sourced from the original manufacturer or authorized distributors?
All TPSMC27HE3/57T 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 TPSMC27HE3/57T meets industry standards.
7.What is the process for return or replacement of TPSMC27HE3/57T?
All TPSMC27HE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC27HE3/57T, 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 TPSMC27HE3/57T part is unused and in its original packaging.
Return procedure for TPSMC27HE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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