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Vishay General Semiconductor - Diodes Division TPSMA10HE3/5AT
- Part No.:
- TPSMA10HE3/5AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA10HE3/5AT.pdf
- Description:
- TVS DIODE 8.1VWM 15VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,900
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Product details
Overview
TPSMA10HE3/5AT from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, rated for 10 V breakdown voltage (VBR = 9.5–10.5 V at 1 mA), 400 W peak pulse power (10/1000 µs), and 185 °C maximum junction temperature - used to protect MOSFETs and signal lines in automotive sensor units against inductive switching transients.
For engineers reviewing the TPSMA10HE3/5AT datasheet, TPSMA10HE3/5AT pinout, TPSMA10HE3/5AT application, or TPSMA10HE3/5AT equivalent, key selection criteria include clamping voltage (VC = 27.6 V at IPPM), unidirectional polarity, AEC-Q101 qualification, TJ = 185 °C capability, and MSL Level 1 moisture sensitivity rating.
Technical Context
This TVS diode operates as a voltage-clamping protection device that enters avalanche conduction when reverse voltage exceeds its 9.5–10.5 V breakdown threshold. It delivers 400 W peak pulse power handling with low incremental surge resistance and fast response time to suppress transients induced by inductive load switching.
Designed for high-reliability environments, the TPSMA10HE3/5AT features junction passivation optimized for stable performance up to 185 °C, meets J-STD-020 MSL Level 1 (260 °C reflow peak), and uses matte tin-plated leads compliant with JESD 22-B102 and J-STD-002 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 9.5 V / 10.0 V / 10.5 V at 1 mA - defines precise avalanche onset for reliable overvoltage triggering |
| VWM | 8.65 V - maximum continuous reverse working voltage before leakage rises significantly |
| VC at IPPM | 27.6 V - clamping voltage during 400 W transient, limiting downstream stress on protected ICs |
| IPPM | 14.5 A - peak pulse current supported under 10/1000 µs waveform, critical for surge margin calculation |
| TJ max. | 185 °C - enables operation in under-hood automotive and industrial high-temp environments |
| Polarity | Unidirectional - protects against positive transients only; cathode marked by band |
| MSL Level | Level 1 per J-STD-020 - allows unlimited floor life and standard 260 °C reflow without baking |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, molded plastic case meeting UL 94 V-0 flammability rating; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts avalanche current to ground during overvoltage event |
| Anode | Reference node | Typically tied to system ground or common return path; completes clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivated anisotropic rectifier technology | Ensures stable VBR and low leakage across temperature and lifetime |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
| 400 W peak pulse power (10/1000 µs) | Supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges |
| Low clamping ratio (VC/VBR ≈ 2.76) | Minimizes voltage overshoot during clamping, reducing risk to downstream logic and analog circuits |
| Matte tin-plated leads, whisker-tested (JESD 201 Class 2) | Enables reliable solder joints in lead-free assembly without tin whisker growth risk |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting CAN/LIN bus interface ICs and Hall-effect sensors in engine control modules exposed to load-dump and inductive kickback. IC Role / Device Role / Timing Role: Voltage-clamping transient suppressor placed directly at connector entry point before signal conditioning stage. Use Value: Limits transient voltage to ≤27.6 V during 14.5 A pulses, preventing latch-up or gate oxide damage in 5 V/3.3 V sensor interfaces. | Use Scenario: Safeguarding microcontroller GPIOs and optocoupler inputs connected to relay coils and solenoid drivers in PLC I/O modules. IC Role / Device Role / Timing Role: Fast-response shunt protector absorbing inductive energy from 24 V DC coil de-energization. Use Value: Clamps 100 ns–1 µs rise-time transients within 1 ns response window, preserving signal integrity and MCU reset stability. |
| Consumer Power Adapter Outputs | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side overvoltage suppression on 12 V output rails of AC/DC adapters powering smart home hubs and IoT gateways. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 8.65 V) placed after DC-DC converter to absorb cross-regulation spikes and ESD events. Use Value: Maintains <5 µA leakage at 8.65 V while clamping 400 W surges, avoiding quiescent current penalty in battery-backed systems. | Use Scenario: Primary-level protection on -48 V telecom power feeds entering line cards, guarding against lightning-induced surges per ITU-T K.20/21. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to negative rail, coordinated with upstream GDT and series impedance. Use Value: Withstands repetitive 10/1000 µs surges at 0.01% duty cycle and supports 185 °C ambient operation in sealed chassis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | Same VBR range (9.5–10.5 V), but SMB package (DO-214AA); 600 W PPPM, higher IPPM (32.4 A) | Larger footprint; better suited for higher-energy surges where board space permits | Select SMBJ10A when surge energy exceeds 400 W or PCB layout allows larger SMA footprint |
| TPSMA10AHM3/5AT | Identical electrical specs and package; halogen-free molding compound instead of standard RoHS-compliant compound | Required for strict halogen-free compliance programs (e.g., certain Tier 1 automotive OEMs) | Choose TPSMA10AHM3/5AT if material declaration mandates halogen-free status beyond RoHS |
Compared with SMBJ10A and TPSMA10AHM3/5AT, the TPSMA10HE3/5AT offers optimal balance of compact SMA footprint, AEC-Q101 qualification, and 400 W surge capability - making it ideal for space-constrained automotive and industrial PCBs where halogen-free is not mandated.
Availability
TPSMA10HE3/5AT is available at Aetrix Electronics and suitable for automotive sensor units, industrial motor drive inputs, and telecom line card surge protection requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for TPSMA10HE3/5AT 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 TPSMA10HE3/5AT belongs to Vishay's PAR® family of surface-mount TVS diodes, engineered specifically for high-reliability transient suppression in automotive, industrial, and telecom infrastructure where thermal stability and AEC-Q101 validation are mandatory.
FAQ
What is the breakdown voltage tolerance of the TPSMA10HE3/5AT?
The TPSMA10HE3/5AT has a specified breakdown voltage (VBR) range of 9.5 V to 10.5 V at 1 mA test current, representing ±5% tolerance around the nominal 10 V rating. This tight tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage margin design in safety-critical circuits such as automotive ECUs where the TPSMA10HE3/5AT is commonly deployed.
Is the TPSMA10HE3/5AT qualified for automotive use?
Yes, the TPSMA10HE3/5AT is AEC-Q101 qualified, as confirmed by Vishay's documentation for HE3-suffix parts. This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD, validating its suitability for under-hood and cabin applications. The TPSMA10HE3/5AT is explicitly designated for automotive use in Vishay's ordering information and mechanical data sections.
What is the maximum clamping voltage of the TPSMA10HE3/5AT under surge conditions?
The maximum clamping voltage (VC) of the TPSMA10HE3/5AT is 27.6 V at peak pulse current (IPPM) of 14.5 A, measured using the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during transient events and is critical for ensuring compatibility with 3.3 V or 5 V logic interfaces downstream of the TPSMA10HE3/5AT.
Does the TPSMA10HE3/5AT have a bidirectional configuration option?
No, the TPSMA10HE3/5AT is unidirectional only, as stated in Vishay's datasheet features section. It protects against positive transients relative to ground and requires correct polarity orientation (cathode toward protected line). Bidirectional variants are not offered in the TPSMAxxA family; engineers requiring symmetrical protection must select a dedicated bidirectional TVS such as the SMBJ10CA or equivalent.
What is the moisture sensitivity level (MSL) rating for the TPSMA10HE3/5AT?
The TPSMA10HE3/5AT meets MSL Level 1 per J-STD-020, with a maximum reflow peak temperature of 260 °C. This means the device has unlimited floor life and can undergo standard lead-free reflow without preconditioning or baking - a key advantage for high-volume SMT manufacturing where the TPSMA10HE3/5AT is integrated into automotive and industrial PCB assemblies.
TPSMA10HE3/5AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.1V
- Voltage - Breakdown (Min):
- 9V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 26.7A
- Power - Peak Pulse:
- 400W
- 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-214AC (SMA)
TPSMA10HE3/5AT FAQ
1.How can I place an order for TPSMA10HE3/5AT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA10HE3/5AT 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 TPSMA10HE3/5AT reliable?
The price and inventory of TPSMA10HE3/5AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA10HE3/5AT is usually 5 days.
3.What payment methods are accepted for TPSMA10HE3/5AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA10HE3/5AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA10HE3/5AT?
TPSMA10HE3/5AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA10HE3/5AT 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 TPSMA10HE3/5AT?
For technical support, including TPSMA10HE3/5AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA10HE3/5AT requirements.
6.How does Aetrix verify that TPSMA10HE3/5AT is sourced from the original manufacturer or authorized distributors?
All TPSMA10HE3/5AT 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 TPSMA10HE3/5AT meets industry standards.
7.What is the process for return or replacement of TPSMA10HE3/5AT?
All TPSMA10HE3/5AT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA10HE3/5AT, 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 TPSMA10HE3/5AT part is unused and in its original packaging.
Return procedure for TPSMA10HE3/5AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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