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Vishay General Semiconductor - Diodes Division TPSMC18AHE3_A/H
- Part No.:
- TPSMC18AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC18AHE3_A/H.pdf
- Description:
- TVS DIODE 15.3VWM 25.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,288
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Product details
Overview
TPSMC18AHE3_A/H 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 18.0 V nominal breakdown voltage (VBR), 15.3 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 μs), 59.5 A peak pulse current (IPPM), and 25.2 V maximum clamping voltage (VC) - deployed in automotive power rail protection and industrial sensor interface circuits.
For engineers reviewing the TPSMC18AHE3_A/H datasheet, TPSMC18AHE3_A/H pinout, TPSMC18AHE3_A/H application, or TPSMC18AHE3_A/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal derating behavior, SMC package mechanical data, and direct alternatives with documented clamping and leakage differences.
Technical Context
This TVS diode operates as a unidirectional clamping device with junction passivated anisotropic rectifier technology, enabling stable performance up to 185 °C junction temperature. Its 10/1000 μs waveform response delivers 1500 W peak pulse power while maintaining low incremental surge resistance and fast response time.
The device is rated for 200 A non-repetitive forward surge current (IFSM) at 8.3 ms half-sine, exhibits 1.0 μA max reverse leakage at VWM, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Polarity is marked by cathode band; terminals are matte tin plated and whisker-tested per JESD 201 Class 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 17.1 / 18.0 / 18.9 V - defines precise voltage threshold where avalanche conduction begins under 1 mA test current |
| VWM | 15.3 V - maximum continuous reverse operating voltage before significant leakage occurs |
| VC @ IPPM | 25.2 V - clamped voltage during 59.5 A transient, limiting downstream IC stress |
| PPPM | 1500 W - peak transient energy absorption capability using standard 10/1000 μs waveform |
| IFSM | 200 A - surge current handling for 8.3 ms half-sine, supporting motor drive and relay coil suppression |
| TJ max | +185 °C - enables operation in under-hood automotive environments without thermal derating loss |
| AEC-Q101 qualified | Yes - validated for automotive-grade reliability per stress test requirements including HTGB, HTRB, and TCT |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded epoxy case meeting UL 94 V-0; dimensions 6.22 mm × 5.59 mm × 2.90 mm (L × W × H); cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction or transient clamping | Connected to protected line (e.g., 12 V rail); must be routed with low-inductance path to ground reference |
| Cathode | Current exit point during clamping; polarity marker via band | Connected to system ground; determines unidirectional clamping direction - blocks reverse surge only |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivated anisotropic rectifier | Enables stable VBR drift < ±5 % over 1000 hrs at 150 °C, critical for long-life automotive modules |
| 185 °C junction rating | Supports placement near heat sources (e.g., power converters) without derating in engine control units |
| 1500 W peak pulse power (10/1000 μs) | Handles ISO 7637-2 Pulse 1/2a/5a transients in 12 V vehicle systems without failure |
| MSL Level 1, 260 °C reflow compatible | Eliminates moisture sensitivity concerns and allows single-pass lead-free assembly |
| AEC-Q101 qualified (HE3 suffix) | Confirms qualification for automotive applications including ESD, temperature cycling, and high-temperature life testing |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Suppressing load dump and inductive switching transients on 12 V battery-fed ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power input and ground. Use Value: Limits voltage to ≤25.2 V during 59.5 A surges, protecting downstream DC/DC controllers and microcontrollers. |
Use Scenario: Protecting analog outputs of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Standoff-clamp TVS on 4–20 mA or 0–10 V output lines exposed to EMI and cable coupling. Use Value: Maintains 15.3 V stand-off while clamping fast transients to 25.2 V, preserving signal integrity and ADC accuracy. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feeds |
Use Scenario: Secondary-side transient suppression in AC/DC adapters powering USB-C PD devices. IC Role / Device Role / Timing Role: Clamping component across bulk capacitor and ground on +5 V/+9 V/+12 V rails. Use Value: Absorbs 1500 W surges without degradation, meeting IEC 61000-4-5 Level 3 immunity requirements. |
Use Scenario: Overvoltage protection on -48 V DC telecom power distribution boards. IC Role / Device Role / Timing Role: Unidirectional TVS connected between supply rail and chassis ground. Use Value: Withstands repeated 200 A surge events (8.3 ms) and maintains <1.0 μA leakage at -41 V operating point. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ18AHE3_A/H | Lower PPPM (600 W), smaller SMB package (DO-214AA), same VBR (18.0 V), higher VC (29.2 V) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a compliance | Select when board space is constrained and peak surge energy remains below 600 W |
| TPSMC18AHM3_A/H | Identical electrical specs; halogen-free molding compound; same AEC-Q101 qualification | No functional difference; required only where halogen-free compliance is mandated (e.g., EU automotive Tier 1) | Choose for RoHS + halogen-free programs; no design or layout change needed |
Compared with TPSMC18AHE3_A/H, SMBJ18AHE3_A/H offers reduced surge capacity in a smaller footprint, while TPSMC18AHM3_A/H provides identical protection with halogen-free materials - both require no PCB redesign but serve distinct compliance or energy-class requirements.
Availability
TPSMC18AHE3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power feed protection requiring stable component supply, AEC-Q101 traceability, and high-temperature reliability.
Supply support for TPSMC18AHE3_A/H 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 designs and manufactures discrete semiconductors including diodes, MOSFETs, and TVS devices, with emphasis on high-reliability, high-temperature, and automotive-qualified components.
The TPSMC18AHE3_A/H belongs to Vishay's PAR® series of surface-mount TVS diodes, engineered specifically for robust transient suppression in harsh environments such as automotive power systems and industrial controls.
FAQ
What is the breakdown voltage tolerance for TPSMC18AHE3_A/H?
The TPSMC18AHE3_A/H has a guaranteed breakdown voltage range of 17.1 V (minimum) to 18.9 V (maximum) at 1 mA test current, with 18.0 V nominal. This ±5 % tolerance ensures predictable clamping onset across production lots and temperature extremes up to 150 °C, as confirmed in the Electrical Characteristics table of Vishay document 88407.
Is TPSMC18AHE3_A/H suitable for automotive applications?
Yes, TPSMC18AHE3_A/H is AEC-Q101 qualified and carries the HE3 suffix indicating RoHS-compliant, automotive-grade construction. It supports junction temperatures up to +185 °C and passes high-temperature reverse bias, temperature cycling, and humidity testing per AEC-Q101 - making it suitable for engine control, body electronics, and ADAS power rail protection.
What is the maximum clamping voltage of TPSMC18AHE3_A/H at its rated peak pulse current?
The maximum clamping voltage (VC) of TPSMC18AHE3_A/H is 25.2 V when subjected to its rated peak pulse current of 59.5 A (10/1000 μs waveform). This value is measured per standard test conditions and ensures downstream components experience no more than 25.2 V during worst-case transients, as specified in the Electrical Characteristics table.
Does TPSMC18AHE3_A/H have bidirectional capability?
No, TPSMC18AHE3_A/H is unidirectional only, as explicitly stated in the Features section of the datasheet. It conducts and clamps only when the cathode is positive relative to the anode. For bidirectional protection, a separate part number (e.g., TPSMC18CA) would be required - TPSMC18AHE3_A/H does not support symmetrical transient suppression.
What is the packaging format for TPSMC18AHE3_A/H?
TPSMC18AHE3_A/H ships in 7-inch plastic tape and reel with 850 units per reel (package code H), per the Ordering Information table. The device uses SMC (DO-214AB) package with matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards and JESD 201 Class 2 whisker resistance.
TPSMC18AHE3_A/H 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):
- 15.3V
- Voltage - Breakdown (Min):
- 17.1V
- Voltage - Clamping (Max) @ Ipp:
- 25.2V
- Current - Peak Pulse (10/1000µs):
- 59.5A
- 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)
TPSMC18AHE3_A/H FAQ
1.How can I place an order for TPSMC18AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC18AHE3_A/H 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 TPSMC18AHE3_A/H reliable?
The price and inventory of TPSMC18AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC18AHE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMC18AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC18AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC18AHE3_A/H?
TPSMC18AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC18AHE3_A/H 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 TPSMC18AHE3_A/H?
For technical support, including TPSMC18AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC18AHE3_A/H requirements.
6.How does Aetrix verify that TPSMC18AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMC18AHE3_A/H 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 TPSMC18AHE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMC18AHE3_A/H?
All TPSMC18AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC18AHE3_A/H, 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 TPSMC18AHE3_A/H part is unused and in its original packaging.
Return procedure for TPSMC18AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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