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Vishay General Semiconductor - Diodes Division TPSMA10HE3_A/I
- Part No.:
- TPSMA10HE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA10HE3_A/I.pdf
- Description:
- TVS DIODE 8.1VWM 15VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,459
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Product details
Overview
TPSMA10HE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 10.0 V nominal breakdown voltage (VBR), 8.65 V maximum stand-off voltage (VWM), 27.6 V clamping voltage at 27.6 A peak pulse current (IPPM), 400 W peak pulse power (10/1000 μs), and 185 °C maximum junction temperature - deployed in automotive sensor protection and industrial power supply input stages.
For engineers reviewing the TPSMA10HE3_A/I datasheet, TPSMA10HE3_A/I pinout, TPSMA10HE3_A/I application, or TPSMA10HE3_A/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 10/1000 μs waveform clamping performance, thermal derating above 25 °C, and compatibility with automated SMT assembly using J-STD-002-compliant matte tin terminals.
Technical Context
The TPSMA10HE3_A/I uses passivated anisotropic rectifier technology to achieve stable clamping under repetitive surge conditions. Its 185 °C junction rating enables operation in high-temperature automotive engine compartments and industrial motor drives without thermal shutdown.
It delivers 400 W peak pulse power per 10/1000 μs waveform with low incremental surge resistance and fast response time (<1 ns), ensuring robust protection against ESD, lightning-induced surges, and inductive switching transients on DC rails and analog signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 9.50 / 10.0 / 10.50 V at 1.0 mA - defines precise voltage threshold where avalanche conduction begins, critical for accurate overvoltage trip point alignment. |
| VWM | 8.65 V - maximum continuous reverse operating voltage before leakage exceeds 5.0 μA; sets safe DC bias margin for protected circuitry. |
| VC @ IPPM | 27.6 V at 27.6 A - clamped voltage during 400 W transient, directly limiting stress on downstream ICs like microcontrollers or MOSFET gate drivers. |
| PPPM | 400 W (10/1000 μs) - peak surge energy handling capacity; determines survivability against IEC 61000-4-5 Level 4 surges. |
| TJ max. | 185 °C - enables use in under-hood automotive modules and high-ambient industrial environments without derating penalties below 150 °C. |
| Polarity | Unidirectional - blocks reverse current only; requires correct orientation relative to DC rail polarity during PCB layout. |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 0.208" x 0.157" footprint; compatible with standard reflow profiles including 260 °C peak (MSL Level 1). |
Pinout & Package
SMA (DO-214AC) package with axial lead configuration: cathode denoted by color band; leads are matte tin plated, solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to lower-potential side of protected line (e.g., GND or negative rail); completes clamping loop during surge events. |
| Cathode | Avalanche conduction node / clamping reference | Connected to higher-potential side (e.g., VIN or signal line); establishes precise VBR threshold and defines unidirectional blocking direction. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control units and ADAS sensor interfaces. |
| 185 °C junction capability | Enables uninterrupted operation in ambient temperatures up to 150 °C without power derating - eliminates need for oversized heatsinking in compact enclosures. |
| 400 W peak pulse power | Withstands IEC 61000-4-5 combination wave (1.2/50 μs voltage + 8/20 μs current) up to Level 4 (4 kV/2 kA) when properly mounted on 5 mm × 5 mm copper pads. |
| Low clamping ratio (VC/VBR = 2.76) | Minimizes overvoltage overshoot during fast transients - protects 3.3 V and 5 V logic interfaces without requiring additional series impedance. |
| MSL Level 1 moisture sensitivity | Allows indefinite floor life at ≤30 °C/60% RH; no baking required prior to reflow - reduces manufacturing overhead and avoids moisture-induced popcorning. |
Applications
| Automotive Engine Control Unit (ECU) Power Input Protection | Industrial PLC Digital Input Protection |
|---|---|
|
Use Scenario: Protects 12 V battery-fed microcontroller power rails from load dump spikes (up to 35 V, 400 ms) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamps positive-going transients while remaining non-conductive during normal operation. Use Value: Prevents latch-up or permanent damage to 32-bit MCUs (e.g., NXP S32K) by limiting VIN to ≤27.6 V during 400 W surges. |
Use Scenario: Shields 24 V digital input channels of programmable logic controllers from field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Fast-response transient suppressor placed upstream of optocoupler input stage to absorb >1 kV transients. Use Value: Maintains signal integrity across 10+ year field deployments by eliminating false triggering caused by >100 V transients on DIN-rail-mounted I/O modules. |
| Consumer Appliance Motor Drive Board Protection | Telecom Base Station Sensor Interface Protection |
|
Use Scenario: Guards BLDC motor driver IC power supplies against back-EMF spikes generated during PWM commutation. IC Role / Device Role / Timing Role: Standoff-mode protector that conducts only during >10 V overvoltage events, preserving efficiency during steady-state operation. Use Value: Extends lifetime of gate drivers (e.g., TI DRV8305) by reducing cumulative junction stress from repetitive 100–200 V, 100 ns spikes. |
Use Scenario: Safeguards RS-485 transceiver inputs (e.g., MAX3485) connected to outdoor antenna sensors exposed to lightning-induced ground potential rise. IC Role / Device Role / Timing Role: Primary-level surge clamp on differential bus lines, coordinated with secondary GDT or MOV stages. Use Value: Enables compliance with ITU-T K.20/21 immunity requirements by limiting common-mode voltage to <30 V during 10/700 μs telecom surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Same SMA package, 10 V VBR, but rated for 400 W with 10/1000 μs waveform and not AEC-Q101 qualified; TJ max = 150 °C. | Lacks automotive qualification and high-temperature capability; suitable for commercial-grade consumer electronics only. | Select SMAJ10A only if AEC-Q101 and 185 °C operation are not required - reduces cost where environmental stress is minimal. |
| TPSMA10AHM3_A/I | Identical electrical specs and AEC-Q101 qualification; differs only in halogen-free molding compound (HM3 suffix vs. HE3). | No functional difference; HM3 variant mandated for RoHS + halogen-free compliance in EU automotive programs. | Choose TPSMA10AHM3_A/I when full material compliance (halogen-free + RoHS) is contractually required - otherwise TPSMA10HE3_A/I satisfies standard AEC-Q101 needs. |
Compared with SMAJ10A, TPSMA10HE3_A/I provides verified automotive reliability and extended thermal margin; versus TPSMA10AHM3_A/I, it offers identical protection performance with standard RoHS compliance - making it optimal for cost-sensitive AEC-Q101 designs without halogen restrictions.
Availability
TPSMA10HE3_A/I is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC input conditioning, and telecom sensor interface protection requiring stable component supply across multi-year production cycles.
Supply support for TPSMA10HE3_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 high-reliability diodes, rectifiers, and protection devices for demanding industrial and automotive applications.
The TPSMA10HE3_A/I belongs to Vishay's PAR® family of transient voltage suppressors, engineered specifically for high-temperature stability and repeatable clamping performance in harsh electromagnetic environments.
FAQ
What is the maximum clamping voltage of the TPSMA10HE3_A/I at its rated peak pulse current?
The TPSMA10HE3_A/I has a maximum clamping voltage (VC) of 27.6 V at its rated peak pulse current (IPPM) of 27.6 A, measured under the standardized 10/1000 μs waveform condition. This value ensures downstream components such as 3.3 V or 5 V microcontrollers remain within absolute maximum ratings during surge events. The TPSMA10HE3_A/I achieves this clamping performance consistently across its operational temperature range up to 185 °C.
Is the TPSMA10HE3_A/I qualified for automotive applications?
Yes, the TPSMA10HE3_A/I is AEC-Q101 qualified, having passed rigorous stress tests including high-temperature reverse bias, temperature cycling, and ESD. Its 185 °C maximum junction temperature and robust construction make it suitable for under-hood automotive modules such as engine control units and body control modules. The TPSMA10HE3_A/I is explicitly designated for automotive use via its HE3 suffix per Vishay's ordering nomenclature.
What does the "HE3" suffix indicate in TPSMA10HE3_A/I?
The "HE3" suffix in TPSMA10HE3_A/I denotes RoHS-compliant construction and AEC-Q101 qualification, as defined in Vishay's ordering documentation. It distinguishes this variant from non-automotive versions (e.g., base TPSMA10A) and confirms compliance with automotive reliability standards. The "A/I" portion specifies packaging in 13-inch tape-and-reel format with 7500 units per reel - a detail confirmed in the official Vishay ordering information table.
Can the TPSMA10HE3_A/I be used in bidirectional protection circuits?
No, the TPSMA10HE3_A/I is unidirectional only, as explicitly stated in the Vishay datasheet under FEATURES. It conducts avalanche current in reverse bias only and blocks forward current beyond ~3.5 V. For bidirectional protection, a separate device such as the SMBJ10CA or a back-to-back TPSMA10HE3_A/I pair would be required - but the TPSMA10HE3_A/I itself cannot suppress negative-going transients on positive rails without external circuitry.
What is the standoff voltage (VWM) of the TPSMA10HE3_A/I, and why does it matter?
The TPSMA10HE3_A/I has a maximum standoff voltage (VWM) of 8.65 V, meaning it remains non-conductive with leakage <5.0 μA up to this DC or RMS voltage level. This parameter is critical for ensuring no power loss or signal distortion during normal operation - for example, when protecting a 5 V or 8 V supply rail. Exceeding VWM risks premature conduction and increased standby current, so proper margin between system operating voltage and VWM must be maintained in the TPSMA10HE3_A/I design-in.
TPSMA10HE3_A/I 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_A/I FAQ
1.How can I place an order for TPSMA10HE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA10HE3_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 TPSMA10HE3_A/I reliable?
The price and inventory of TPSMA10HE3_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 TPSMA10HE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMA10HE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA10HE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA10HE3_A/I?
TPSMA10HE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA10HE3_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 TPSMA10HE3_A/I?
For technical support, including TPSMA10HE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA10HE3_A/I requirements.
6.How does Aetrix verify that TPSMA10HE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMA10HE3_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 TPSMA10HE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMA10HE3_A/I?
All TPSMA10HE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA10HE3_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 TPSMA10HE3_A/I part is unused and in its original packaging.
Return procedure for TPSMA10HE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA10HE3_A/I Tags
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