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Vishay General Semiconductor - Diodes Division TPSMA10AHE3_B/I
- Part No.:
- TPSMA10AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA10AHE3_B/I.pdf
- Description:
- TVS DIODE 8.65VWM 14.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,872
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Product details
Overview
TPSMA10AHE3_B/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features 10 V breakdown voltage (VBR = 9.5–10.5 V at 1 mA), 8.65 V stand-off voltage (VWM), 27.6 V clamping voltage (VC) at 14.5 A peak pulse current, 400 W peak pulse power (10/1000 µs), and 185 °C maximum junction temperature - deployed in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the TPSMA10AHE3_B/I datasheet, TPSMA10AHE3_B/I pinout, TPSMA10AHE3_B/I application, or TPSMA10AHE3_B/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 185 °C thermal capability, low clamping ratio (VC/VBR ≈ 2.76), and compatibility with automated SMT assembly per J-STD-002.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable breakdown characteristics under high-temperature stress. Its junction design supports operation up to 185 °C and meets MSL Level 1 (260 °C peak reflow), enabling use in under-hood automotive modules and industrial controllers exposed to thermal cycling.
The device delivers fast response time and low incremental surge resistance to limit transient overvoltage before downstream ICs or MOSFETs are damaged. Clamping performance is specified at 14.5 A IPPM with 27.6 V VC, ensuring robust protection against 10/1000 µs lightning-induced surges and inductive switching spikes.
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 voltage threshold where avalanche conduction begins reliably |
| VWM | 8.65 V - maximum continuous reverse working voltage before leakage exceeds 5 µA |
| VC @ IPPM | 27.6 V at 14.5 A - clamped voltage during 400 W transient, limiting stress on protected circuitry |
| PPPM | 400 W (10/1000 µs waveform) - peak surge energy handling capacity without failure |
| TJ max. | 185 °C - enables deployment in high-temperature environments including engine control units |
| Polarity | Unidirectional - protects against positive-going transients only; cathode band denotes polarity |
| AEC-Q101 | Qualified - validated for automotive-grade reliability per stress test requirements |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, matte tin-plated leads, RoHS-compliant and halogen-free (HE3 suffix), MSL Level 1 rated.
| 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 low-impedance return path for clamping loop integrity |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Ensures stable VBR drift < ±5 % over 1000 hrs at 150 °C, critical for long-life automotive modules |
| 400 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surge (4 kV line-earth) when properly laid out on PCB |
| Low clamping ratio (VC/VBR ≈ 2.76) | Minimizes overvoltage overshoot during fast transients, protecting 12 V logic interfaces |
| TJ = 185 °C capability | Supports operation in ambient temperatures up to 150 °C with full derating, meeting AEC-Q101 thermal stress limits |
| Meets JESD 201 Class 2 whisker test | Prevents tin whisker growth under thermal/humidity cycling, enhancing field reliability |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) in engine control modules from load dump and ISO 7637-2 pulses. IC Role / Device Role: Unidirectional TVS clamp placed between signal line and chassis ground to shunt transient energy before reaching sensitive front-end amplifiers. Use Value: Withstands 185 °C junction temperature and maintains VBR stability across life cycle, satisfying AEC-Q101 requirements for under-hood placement. | Use Scenario: Guarding digital input channels of programmable logic controllers against EFT/burst noise and 2 kV surge events per IEC 61000-4-4/4-5. IC Role / Device Role: Primary overvoltage clamp on 24 V DC input lines, coordinated with series impedance to limit let-through energy. Use Value: 27.6 V clamping voltage ensures protected 24 V logic remains below absolute maximum ratings of microcontroller GPIOs. |
| Consumer Power Adapter Surge Suppression | Telecom Line Interface Protection |
Use Scenario: Secondary-side transient suppression on 5–12 V DC outputs of wall adapters and USB PD chargers exposed to AC line surges. IC Role / Device Role: Fast-response unidirectional clamp between output rail and GND, absorbing residual transients after primary MOV filtering. Use Value: 400 W PPPM rating and low VF (3.5 V at 25 A) enable effective energy diversion without thermal runaway during repetitive surges. | Use Scenario: Protecting Ethernet PHYs and PoE injectors from induced surges on twisted-pair data lines in building infrastructure. IC Role / Device Role: Line-to-ground TVS on differential pairs, used in conjunction with common-mode chokes for balanced surge rejection. Use Value: 10/1000 µs waveform compliance and 14.5 A IPPM ensure immunity to telecom-grade lightning surges per GR-1089-CORE. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Same SMA package, 10 V VBR, but lower PPPM (400 W same), no AEC-Q101 qualification, TJ max = 150 °C | Not suitable for automotive under-hood use; limited to commercial/industrial ambient ≤ 85 °C | Select SMAJ10A only for cost-sensitive non-automotive designs where AEC-Q101 and 185 °C operation are not required. |
| TPSMA10AHM3_B/I | Identical electrical specs and AEC-Q101 qualification; HM3 suffix indicates halogen-free construction vs. HE3's RoHS-only compliance | No functional difference; HM3 preferred where halogen-free BOM compliance is mandated (e.g., EU WEEE, specific OEM specs) | Choose TPSMA10AHM3_B/I when halogen-free materials are contractually required; otherwise TPSMA10AHE3_B/I satisfies standard automotive and industrial needs. |
Compared with SMAJ10A and TPSMA10AHM3_B/I, the TPSMA10AHE3_B/I uniquely combines AEC-Q101 qualification, 185 °C junction rating, and RoHS compliance in a single standard-grade variant - making it the default choice for automotive Tier 1 suppliers requiring traceable, production-ready TVS diodes without halogen-free overhead.
Availability
TPSMA10AHE3_B/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O protection, and consumer power adapter surge suppression requiring stable component supply, AEC-Q101 validation, and high-temperature reliability.
Supply support for TPSMA10AHE3_B/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 high-reliability and automotive-grade components.
The TPSMAxxA family is engineered for robust transient suppression in harsh environments - targeting automotive powertrain, body electronics, and industrial control systems where thermal resilience and AEC-Q101 compliance are mandatory.
FAQ
What is the breakdown voltage tolerance of the TPSMA10AHE3_B/I?
The TPSMA10AHE3_B/I has a breakdown voltage (VBR) range of 9.5 V to 10.5 V at 1 mA test current, representing ±5 % tolerance around the nominal 10.0 V value. This tight distribution ensures consistent clamping behavior across production lots and supports reliable design margining in safety-critical circuits such as automotive sensor interfaces.
Is the TPSMA10AHE3_B/I qualified to AEC-Q101?
Yes, the TPSMA10AHE3_B/I is fully AEC-Q101 qualified, as confirmed by Vishay's documentation (Document Number 88405, Revision 23-Jan-2024). The HE3 suffix explicitly denotes AEC-Q101 qualification, and the device undergoes stress testing including HTGB, HTRB, and temperature cycling to meet automotive reliability standards.
What is the maximum clamping voltage for the TPSMA10AHE3_B/I under surge conditions?
The maximum clamping voltage (VC) of the TPSMA10AHE3_B/I is 27.6 V at 14.5 A peak pulse current (IPPM) using the 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during transient events.
Does the TPSMA10AHE3_B/I have a unidirectional or bidirectional configuration?
The TPSMA10AHE3_B/I is a unidirectional TVS diode, meaning it conducts only during positive voltage transients relative to its cathode terminal. Polarity is marked by a color band on the cathode end, and it must be oriented with cathode toward the protected line and anode to ground for proper operation.
What is the thermal rating and reflow compatibility of the TPSMA10AHE3_B/I?
The TPSMA10AHE3_B/I is rated for a maximum junction temperature of 185 °C and meets MSL Level 1 per J-STD-020, with a maximum lead-free reflow peak temperature of 260 °C. Its matte tin-plated terminals are solderable per J-STD-002 and JESD 22-B102, supporting standard SMT assembly processes.
TPSMA10AHE3_B/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.65V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 27.6A
- 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)
TPSMA10AHE3_B/I FAQ
1.How can I place an order for TPSMA10AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA10AHE3_B/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 TPSMA10AHE3_B/I reliable?
The price and inventory of TPSMA10AHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA10AHE3_B/I is usually 5 days.
3.What payment methods are accepted for TPSMA10AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA10AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA10AHE3_B/I?
TPSMA10AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA10AHE3_B/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 TPSMA10AHE3_B/I?
For technical support, including TPSMA10AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA10AHE3_B/I requirements.
6.How does Aetrix verify that TPSMA10AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All TPSMA10AHE3_B/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 TPSMA10AHE3_B/I meets industry standards.
7.What is the process for return or replacement of TPSMA10AHE3_B/I?
All TPSMA10AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA10AHE3_B/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 TPSMA10AHE3_B/I part is unused and in its original packaging.
Return procedure for TPSMA10AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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