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Vishay General Semiconductor - Diodes Division TPSMC15AHE3/9AT
- Part No.:
- TPSMC15AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC15AHE3/9AT.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,337
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Product details
Overview
TPSMC15AHE3/9AT 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 a 15 V breakdown voltage (VBR = 14.3–15.8 V at 1 mA), 12.8 V stand-off voltage (VWM), 21.2 V clamping voltage (VC) at 70.8 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the TPSMC15AHE3/9AT datasheet, TPSMC15AHE3/9AT pinout, TPSMC15AHE3/9AT application, or TPSMC15AHE3/9AT equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 185 °C junction temperature rating, low leakage (<1 μA at VWM), and SMC package compatibility with high-reliability PCB layouts requiring MSL Level 1 reflow.
Technical Context
This TVS diode operates as a clamping-type overvoltage protector using passivated anisotropic rectifier technology. Its junction design enables stable breakdown behavior up to TJ = 185 °C and supports fast response time (<1 ns) to transients induced by inductive switching or ESD events.
The device delivers 1500 W peak pulse power dissipation under standardized 10/1000 μs waveform conditions when mounted on 8.0 mm × 8.0 mm copper pads. Its low incremental surge resistance ensures minimal voltage overshoot during high-current surges, while the cathode-band polarity marking aligns with standard SMC orientation conventions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 14.3 / 15.0 / 15.8 V at 1 mA - defines precise voltage threshold where avalanche conduction begins |
| VWM | 12.8 V - maximum continuous reverse voltage before significant leakage occurs |
| VC @ IPPM | 21.2 V at 70.8 A - clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 1500 W (10/1000 μs) - energy-handling capacity for transient suppression without failure |
| IR @ VWM | <1.0 μA - ensures negligible standby power loss and signal integrity in high-impedance circuits |
| TJ max. | 185 °C - enables operation in under-hood automotive and high-temperature industrial environments |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct orientation in series with line |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, MSL Level 1 compliant, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Cathode identified by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to ground or low-side reference in unidirectional clamp configuration |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to protected line; absorbs surge energy into ground path when VLINE exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR drift <0.076 %/°C and reliable long-term clamping performance |
| 1500 W peak pulse power (10/1000 μs) | Supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain and body electronics per stress test requirements |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving system-level immunity |
| MSL Level 1, 260 °C peak reflow | Allows single-pass lead-free assembly without moisture-induced damage or delamination |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between input rail and chassis ground. Use Value: Clamps transients to ≤21.2 V while handling 1500 W pulses, preventing damage to downstream DC/DC converters and microcontrollers. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Line-side transient suppressor on differential or single-ended signal traces. Use Value: Sub-μA leakage preserves signal accuracy; fast response prevents latch-up in precision front-end amplifiers. |
| Telecom DC Power Input Protection | Consumer Device USB/Power Port Protection |
Use Scenario: Safeguarding PoE-powered equipment inputs against lightning-induced surges on 48 V rails. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side DC bus before DC/DC regulation. Use Value: 185 °C TJ rating ensures reliability in sealed telecom enclosures with limited airflow. | Use Scenario: Adding surge resilience to USB-C PD input stages in portable medical or smart home hubs. IC Role / Device Role / Timing Role: Secondary-level TVS on VBUS line upstream of protection FETs and controllers. Use Value: SMC footprint allows compact placement near connectors; AEC-Q101 qualification adds confidence in field longevity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | Same VBR range and unidirectional polarity, but lower PPPM = 600 W in SMB package | Lower energy handling limits use to sub-automotive or low-risk consumer ports | Select when board space is constrained and surge threat level is moderate (e.g., IEC 61000-4-2 only) |
| TPSMC15AHM3/9AT | Identical electrical specs; HM3 suffix denotes halogen-free, RoHS-compliant, AEC-Q101 qualified variant | No functional difference; used where halogen-free material compliance is mandated | Choose for automotive OEMs requiring full material declaration and green manufacturing compliance |
Compared with TPSMC15AHE3/9AT, SMBJ15A offers reduced surge margin in a smaller package, while TPSMC15AHM3/9AT provides identical protection with halogen-free construction - enabling direct substitution where environmental compliance drives material selection.
Availability
TPSMC15AHE3/9AT is available at Aetrix Electronics and suitable for automotive power supply protection, industrial sensor interface protection, and telecom DC power input protection requiring stable component supply, AEC-Q101 validation, and high-temperature operational assurance.
Supply support for TPSMC15AHE3/9AT 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, thermal performance, and automotive-grade qualification.
The TPSMC15AHE3/9AT belongs to Vishay's PAR® family of high-power surface-mount TVS diodes, engineered specifically for demanding transient suppression in automotive, industrial, and telecom infrastructure where sustained high-temperature operation and AEC-Q101 compliance are mandatory.
FAQ
What is the breakdown voltage tolerance of TPSMC15AHE3/9AT?
The TPSMC15AHE3/9AT has a specified breakdown voltage range of 14.3 V to 15.8 V at 1 mA test current, representing ±5% tolerance around the nominal 15 V rating. This tight VBR distribution ensures consistent clamping onset across production lots and supports predictable overvoltage protection design margins in safety-critical systems.
Is TPSMC15AHE3/9AT suitable for bidirectional transient protection?
No, TPSMC15AHE3/9AT is a unidirectional TVS diode and only protects against positive-going transients on the cathode side. For bidirectional protection, a separate device such as TPSMC15CAHE3/9AT (the complementary bipolar version) must be used. The HE3 suffix confirms unidirectional polarity, and the cathode band marking must be oriented toward the protected line.
Does TPSMC15AHE3/9AT meet AEC-Q101 requirements?
Yes, TPSMC15AHE3/9AT is AEC-Q101 qualified, as confirmed by Vishay's documentation (Document Number 88407, Revision 19-Jan-2024). The HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction, including stress testing for temperature cycling, humidity bias HAST, and mechanical shock - making it suitable for automotive powertrain and body electronics applications.
What is the maximum clamping voltage of TPSMC15AHE3/9AT under surge conditions?
The maximum clamping voltage (VC) of TPSMC15AHE3/9AT is 21.2 V at 70.8 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value represents the upper limit of voltage imposed on the protected circuit during worst-case surge events and is critical for ensuring downstream components remain within their absolute maximum ratings.
Can TPSMC15AHE3/9AT be used in lead-free reflow processes?
Yes, TPSMC15AHE3/9AT is rated for MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C, fully compatible with standard lead-free soldering profiles. Its matte tin-plated terminals meet J-STD-002 and JESD 22-B102 solderability requirements, and the molding compound complies with UL 94 V-0 flammability standards.
TPSMC15AHE3/9AT 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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 70.8A
- 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)
TPSMC15AHE3/9AT FAQ
1.How can I place an order for TPSMC15AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC15AHE3/9AT 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 TPSMC15AHE3/9AT reliable?
The price and inventory of TPSMC15AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC15AHE3/9AT is usually 5 days.
3.What payment methods are accepted for TPSMC15AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC15AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC15AHE3/9AT?
TPSMC15AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC15AHE3/9AT 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 TPSMC15AHE3/9AT?
For technical support, including TPSMC15AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC15AHE3/9AT requirements.
6.How does Aetrix verify that TPSMC15AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All TPSMC15AHE3/9AT 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 TPSMC15AHE3/9AT meets industry standards.
7.What is the process for return or replacement of TPSMC15AHE3/9AT?
All TPSMC15AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC15AHE3/9AT, 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 TPSMC15AHE3/9AT part is unused and in its original packaging.
Return procedure for TPSMC15AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC15AHE3/9AT Tags
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