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Vishay General Semiconductor - Diodes Division TPSMC27HE3_A/I
- Part No.:
- TPSMC27HE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC27HE3_A/I.pdf
- Description:
- TVS DIODE 21.8VWM 39.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,570
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Product details
Overview
TPSMC27HE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 27.0 V breakdown voltage (VBR), 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 - used to safeguard MOSFETs, ICs, and sensor signal lines in automotive and industrial power rails.
For engineers reviewing the TPSMC27HE3_A/I datasheet, TPSMC27HE3_A/I pinout, TPSMC27HE3_A/I application, or TPSMC27HE3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C junction rating, low clamping ratio (VC/VBR = 1.39), unidirectional polarity, and RoHS-compliant matte tin terminations - all critical for high-reliability 12 V/24 V automotive subsystems and industrial I/O protection.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device triggered by transient overvoltages exceeding its 27.0 V breakdown threshold. Its passivated anisotropic rectifier structure enables fast response (<1 ns) and low incremental surge resistance, ensuring stable clamping under repetitive 10/1000 µs surges up to 1500 W.
Rated for continuous operation from –65 °C to +185 °C, it supports high-temperature environments without derating loss. The SMC package provides mechanical robustness and thermal dissipation via 8.0 mm × 8.0 mm copper pads, meeting MSL Level 1 and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 25.7 / 27.0 / 28.4 V - precise breakdown ensures reliable triggering before downstream IC damage |
| VWM | 23.1 V - maximum continuous reverse working voltage compatible with 24 V nominal systems |
| VC @ IPPM | 37.5 V - clamping voltage limits stress on protected circuitry during 40.0 A transients |
| PPPM | 1500 W - handles severe inductive switching surges per ISO 7637-2 Pulse 1/2a/5a |
| IFSM | 200 A - withstands 8.3 ms half-sine surge events without failure |
| TJ max | +185 °C - enables under-hood placement in automotive ECUs without thermal derating |
| Polarity | Unidirectional - protects against positive-going transients only; cathode band denotes terminal |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded epoxy case with UL 94 V-0 rating; dimensions 6.22 mm × 5.59 mm × 2.46 mm; matte tin-plated leads, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VIN > VBR |
| Anode | Reference return path | Typically tied to system ground or low-impedance return plane for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| 185 °C junction rating | Enables direct mounting near heat sources (e.g., power converters) without external heatsinking |
| 1500 W peak pulse power | Meets ISO 16750-2 and ISO 7637-2 test levels for 12 V/24 V vehicle networks |
| Low clamping ratio (VC/VBR = 1.39) | Minimizes overvoltage overshoot during fast transients, reducing risk to downstream logic |
| MSL Level 1, 260 °C reflow | Compatible with standard lead-free SMT assembly processes without moisture sensitivity concerns |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs of body control modules (BCM) and lighting drivers against load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and input filter capacitor. Use Value: Clamps transients to ≤37.5 V within nanoseconds, preventing latch-up or gate oxide rupture in upstream PMICs and microcontrollers. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across signal and ground to absorb ESD and field-induced surges. Use Value: Maintains 23.1 V working voltage margin while limiting surge energy to <150 mJ, preserving sensor accuracy and isolation integrity. |
| Telecom DC Power Input | Computer Peripheral Port Protection |
Use Scenario: Safeguarding 48 V DC input stages of PoE-powered switches and base station RF amplifiers. IC Role / Device Role / Timing Role: Primary overvoltage clamp on bulk input rail prior to DC/DC converter stage. Use Value: Withstands 200 A non-repetitive surge (8.3 ms) and delivers 1500 W pulse handling without degradation. |
Use Scenario: Protecting USB-C and HDMI hot-swap interfaces in docking stations and monitors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Fast-response TVS placed at connector entry point, referenced to chassis ground. Use Value: Sub-1 ns response time and 37.5 V clamping prevent data corruption and PHY latch-up during ±8 kV contact ESD (IEC 61000-4-2). |
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 | Lower PPPM (400 W), higher VC/VBR ratio (1.52), SMA package (smaller thermal mass) | Limited to lower-energy transients; not AEC-Q101 qualified; unsuitable for automotive under-hood use | Select for cost-sensitive consumer electronics where 1500 W surge immunity is unnecessary |
| 1.5KE27A | Through-hole DO-201 package, same VBR and VC, but lower IFSM (125 A) and no AEC-Q101 qualification | Requires PCB through-hole real estate; lacks high-temp reliability validation for automotive deployment | Choose only for legacy board upgrades or prototyping where SMT assembly is unavailable |
Compared with SMAJ28A-E3/5AT and 1.5KE27A, the TPSMC27HE3_A/I delivers superior surge robustness (1500 W vs. 400 W/600 W), automotive-grade qualification, and SMT compatibility - making it the preferred choice for production-grade 24 V industrial and automotive power protection.
Availability
TPSMC27HE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, telecom power supplies, and computer peripheral interface protection requiring stable component supply and long-term lifecycle assurance.
Supply support for TPSMC27HE3_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 and high-temperature performance.
The TPSMC series was engineered specifically for high-energy transient suppression in harsh-environment applications - targeting automotive, industrial, and telecom systems where AEC-Q101 compliance and 185 °C operation are mandatory.
FAQ
What is the breakdown voltage tolerance for TPSMC27HE3_A/I?
The TPSMC27HE3_A/I has a specified breakdown voltage range of 25.7 V (minimum) to 28.4 V (maximum) at 1 mA test current, with a typical value of 27.0 V. This ±5% tolerance ensures consistent triggering behavior across production lots and supports design margining for 24 V system protection. All values are measured per ANSI/IEEE C62.35 standards and validated at 25 °C ambient.
Is TPSMC27HE3_A/I suitable for bidirectional transient protection?
No, TPSMC27HE3_A/I is unidirectional only - it protects against positive-going transients on the cathode side relative to anode. For bidirectional protection (e.g., AC lines or data buses), a separate symmetric TVS array or dual-diode configuration is required. The device marking "A" suffix and documentation explicitly state unidirectional polarity; no bidirectional variant exists in the TPSMCxxA family.
Does TPSMC27HE3_A/I meet automotive qualification standards?
Yes, TPSMC27HE3_A/I is AEC-Q101 qualified - confirmed in the Vishay datasheet (Document Number: 88407, Revision: 19-Jan-2024). This includes stress testing for high-temperature reverse bias, temperature cycling, and humidity bias life. The HE3 suffix denotes RoHS compliance and AEC-Q101 qualification, making it suitable for automotive powertrain, body, and chassis modules.
What is the maximum clamping voltage of TPSMC27HE3_A/I at rated surge current?
The maximum clamping voltage (VC) of TPSMC27HE3_A/I is 37.5 V at 40.0 A peak pulse current (IPPM) using a 10/1000 µs waveform. This value is guaranteed across temperature and represents worst-case clamping under standardized surge conditions - critical for verifying that protected ICs remain below their absolute maximum voltage ratings during fault events.
Can TPSMC27HE3_A/I be used in lead-free reflow processes?
Yes, TPSMC27HE3_A/I is rated for lead-free reflow with a maximum peak temperature of 260 °C and meets MSL Level 1 per J-STD-020. Its matte tin-plated terminals comply with J-STD-002 and JESD22-B102 solderability standards, and it passes JESD201 Class 2 whisker testing - enabling compatibility with standard Pb-free SMT assembly lines without preconditioning or special handling.
TPSMC27HE3_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):
- 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_A/I FAQ
1.How can I place an order for TPSMC27HE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC27HE3_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 TPSMC27HE3_A/I reliable?
The price and inventory of TPSMC27HE3_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 TPSMC27HE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMC27HE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC27HE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC27HE3_A/I?
TPSMC27HE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC27HE3_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 TPSMC27HE3_A/I?
For technical support, including TPSMC27HE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC27HE3_A/I requirements.
6.How does Aetrix verify that TPSMC27HE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMC27HE3_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 TPSMC27HE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMC27HE3_A/I?
All TPSMC27HE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC27HE3_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 TPSMC27HE3_A/I part is unused and in its original packaging.
Return procedure for TPSMC27HE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC27HE3_A/I Tags
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