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Vishay General Semiconductor - Diodes Division TPSMC27HE3/9AT
- Part No.:
- TPSMC27HE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC27HE3/9AT.pdf
- Description:
- TVS DIODE 21.8VWM 39.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,392
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Product details
Overview
TPSMC27HE3/9AT from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features 27 V breakdown voltage (VBR = 25.7–28.4 V at IT = 1 mA), 23.1 V stand-off voltage (VWM), 37.5 V maximum 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 - used in automotive power rail protection and industrial sensor interface circuits.
For engineers reviewing the TPSMC27HE3/9AT datasheet, TPSMC27HE3/9AT pinout, TPSMC27HE3/9AT application, or TPSMC27HE3/9AT equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 1500 W surge capability, thermal stability to 185 °C, and compatibility with automated SMT assembly under J-STD-020 MSL level 1.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD and switching-induced transients. Its junction passivation and high-TJ design support operation in harsh environments including automotive under-hood and industrial motor drive control units.
The device is rated for non-repetitive 10/1000 µs waveform surges up to 1500 W and 8.3 ms half-sine forward surge current of 200 A. Clamping performance is validated at 40 A IPPM, yielding VC = 37.5 V - critical for protecting 24 V nominal systems against ISO 7637-2 Pulse 1/2a/5a events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 25.7 / 27.0 / 28.4 V at 1 mA - defines precise breakdown threshold for reliable overvoltage triggering |
| VWM | 23.1 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 37.5 V at 40 A - clamping voltage limiting protected circuit stress during 10/1000 µs surge |
| PPPM | 1500 W - peak pulse power handling per JEDEC standard waveform, enabling robust transient immunity |
| TJ max. | +185 °C - supports high-temperature automotive and industrial applications without derating |
| Polarity | Unidirectional - protects only against positive transients relative to cathode, suitable for DC supply rails |
| MSL Level | Level 1 (260 °C peak reflow) - compatible with standard lead-free SMT processes without moisture sensitivity concerns |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated terminals, cathode indicated by color band. Dimensions: 7.11 mm × 6.22 mm × 2.90 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential side of protected line (e.g., ground or return path) |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to higher-potential side (e.g., 24 V rail); marked by color band |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability per stress test requirements, including temperature cycling and HTRB |
| 185 °C junction rating | Enables deployment in engine control modules and powertrain electronics without thermal derating |
| 1500 W peak pulse power | Withstands severe load dump and inductive kick events in 12 V/24 V vehicle electrical systems |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage overshoot during clamping, reducing stress on downstream MOSFETs and ICs |
| MSL Level 1 compliance | Eliminates pre-bake requirement prior to reflow, streamlining high-volume manufacturing |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in body control modules against ISO 7637-2 Pulse 5a (load dump) and Pulse 1 (inductive switch-off). IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and input filter capacitor to clamp transients before they reach LDOs and microcontrollers. Use Value: Limits clamped voltage to ≤37.5 V, ensuring downstream 40 V-rated components remain within safe operating area during 1500 W surge events. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) of pressure sensors in factory automation equipment exposed to relay coil switching noise. IC Role / Device Role / Timing Role: TVS placed across sensor output terminals to shunt fast-rising transients induced by nearby AC contactors. Use Value: Sub-1 ns response time and 37.5 V clamping prevent latch-up or damage to precision op-amps and ADC front-ends. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Securing -48 V DC input of telecom base station power supplies against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Unidirectional TVS connected between -48 V rail and chassis ground to absorb common-mode energy coupled onto power lines. Use Value: 185 °C rating ensures stable clamping performance in sealed, thermally constrained enclosures without thermal runaway risk. |
Use Scenario: Shielding gate drivers and bootstrap circuits in BLDC motor inverters inside HVAC systems from voltage spikes generated by PWM switching and back-EMF. IC Role / Device Role / Timing Role: TVS mounted directly at inverter module input to suppress dv/dt-induced coupling into control logic. Use Value: 1500 W pulse rating handles repetitive commutation transients while maintaining <1 µA leakage at 23.1 V standby. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A-E3/5AT (Vishay) | Lower PPPM (400 W), SMA package (smaller footprint), same VBR range (26.6–29.4 V), but lower IPPM (12.3 A) | Not suitable for 1500 W load dump; limited to low-energy ESD and signal-line protection | Select when board space is constrained and surge energy is ≤400 W |
| TPSMC27AHM3/9AT (Vishay) | Identical electrical specs; halogen-free molding compound and whisker-resistant plating per JESD 201 Class 2 | Required for RoHS-compliant, halogen-free BOMs in EU/Asia automotive programs | Choose when material compliance (halogen-free + AEC-Q101) is mandatory |
Compared with TPSMC27HE3/9AT, SMAJ28A-E3/5AT offers smaller size but sacrifices >60 % pulse power handling, while TPSMC27AHM3/9AT provides identical protection performance with enhanced environmental compliance - making it a direct material-grade alternative rather than a functional downgrade.
Availability
TPSMC27HE3/9AT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and telecom DC input protection requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for TPSMC27HE3/9AT 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 qualification.
The TPSMC series was developed specifically for high-energy transient suppression in automotive and industrial environments where AEC-Q101 compliance, 185 °C operation, and 1500 W pulse capability are mandatory design requirements.
FAQ
What is the breakdown voltage tolerance of TPSMC27HE3/9AT?
The TPSMC27HE3/9AT has a specified breakdown voltage 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 VBR distribution ensures consistent clamping behavior across production lots and supports reliable overvoltage detection in safety-critical 24 V systems where TPSMC27HE3/9AT is deployed.
Is TPSMC27HE3/9AT AEC-Q101 qualified?
Yes, TPSMC27HE3/9AT is AEC-Q101 qualified - confirmed by Vishay's documentation stating "AEC-Q101 qualified available" for HE3-suffix parts and listing automotive ordering code P/NHE3. The qualification covers stress tests including HTGB, HTRB, and temperature cycling, validating TPSMC27HE3/9AT for use in automotive powertrain and body electronics.
What is the maximum clamping voltage of TPSMC27HE3/9AT and at what current is it measured?
The maximum clamping voltage of TPSMC27HE3/9AT is 37.5 V, measured at 40 A peak pulse current using the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events and is a key parameter for verifying that downstream components like 40 V MOSFETs remain within their absolute maximum ratings when TPSMC27HE3/9AT is active.
Does TPSMC27HE3/9AT support lead-free reflow soldering?
Yes, TPSMC27HE3/9AT meets J-STD-020 MSL Level 1 with a maximum peak reflow temperature of 260 °C, making it fully compatible with standard lead-free soldering processes. Its matte tin-plated terminals are solderable per J-STD-002 and JESD 22-B102, and the device requires no pre-bake - simplifying manufacturing integration for TPSMC27HE3/9AT in high-volume SMT lines.
What is the polarity configuration of TPSMC27HE3/9AT?
TPSMC27HE3/9AT is unidirectional - it conducts only during reverse-bias overvoltage conditions, with the cathode terminal marked by a color band. This configuration is intended for DC supply rail protection (e.g., 24 V systems), where transients occur as positive spikes relative to ground; TPSMC27HE3/9AT does not protect against negative-going transients on the same line.
TPSMC27HE3/9AT 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)
TPSMC27HE3/9AT FAQ
1.How can I place an order for TPSMC27HE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC27HE3/9AT 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 TPSMC27HE3/9AT reliable?
The price and inventory of TPSMC27HE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC27HE3/9AT is usually 5 days.
3.What payment methods are accepted for TPSMC27HE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC27HE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC27HE3/9AT?
TPSMC27HE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC27HE3/9AT 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 TPSMC27HE3/9AT?
For technical support, including TPSMC27HE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC27HE3/9AT requirements.
6.How does Aetrix verify that TPSMC27HE3/9AT is sourced from the original manufacturer or authorized distributors?
All TPSMC27HE3/9AT 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 TPSMC27HE3/9AT meets industry standards.
7.What is the process for return or replacement of TPSMC27HE3/9AT?
All TPSMC27HE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC27HE3/9AT, 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 TPSMC27HE3/9AT part is unused and in its original packaging.
Return procedure for TPSMC27HE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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