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Vishay General Semiconductor - Diodes Division TPSMA10HE3_A/H
- Part No.:
- TPSMA10HE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA10HE3_A/H.pdf
- Description:
- TVS DIODE 8.1VWM 15VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,610
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Product details
Overview
TPSMA10HE3_A/H 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 stand-off voltage (VWM), 27.6 V maximum clamping voltage (VC) at 20 A peak pulse current, 400 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - ideal for automotive power rail protection.
For engineers reviewing the TPSMA10HE3_A/H datasheet, TPSMA10HE3_A/H pinout, TPSMA10HE3_A/H application, or TPSMA10HE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, thermal derating above 25 °C, clamping performance under repetitive surge conditions, and compatibility with standard SMA PCB footprints.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under high-temperature operation (TJ = 185 °C). Its low incremental surge resistance and fast response time enable effective suppression of inductive switching spikes and lightning-induced transients on DC power rails and sensor interfaces.
The device is rated for 40 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine) and exhibits a typical VBR temperature coefficient of +0.064 %/°C - enabling predictable voltage shift across automotive operating ranges without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 9.50 / 10.0 / 10.50 V - defines precise voltage threshold at which avalanche conduction begins under 1.0 mA test current |
| VWM | 8.65 V - maximum continuous reverse voltage before leakage exceeds 5.0 µA, ensuring no false triggering during normal operation |
| VC @ IPPM | 27.6 V at 20 A - clamped voltage during 10/1000 µs surge, limiting downstream IC stress to safe levels |
| PPPM | 400 W - peak pulse power handling capability per JEDEC-standard waveform, supporting robust ESD/EFT immunity |
| TJ max. | +185 °C - enables use in under-hood automotive environments and high-power industrial enclosures without thermal derating penalties |
| Polarity | Unidirectional - protects only against positive transients relative to cathode; requires correct orientation in series with protected line |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 0.208" x 0.157" footprint and J-STD-020 MSL Level 1 rating |
Pinout & Package
SMA (DO-214AC) package with axial lead configuration: molded plastic body, matte tin-plated terminals, cathode indicated by color band. Compliant with UL 94 V-0 flammability rating and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts avalanche current to ground when VLINE exceeds VBR |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane; completes clamping path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification |
| Junction passivation | Reduces surface leakage and improves long-term stability under humid or contaminated operating conditions |
| MSL Level 1 | Zero floor life limitation - can be stored indefinitely at ≤30 °C/60% RH and mounted without baking |
| Low clamping ratio (VC/VBR) | 2.76 - ensures minimal overvoltage margin between breakdown and clamping, maximizing protection headroom |
| High IFSM | 40 A - withstands repeated motor commutation surges or relay coil de-energization without degradation |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load-dump transients (up to 35 V, 100 ms) on 12 V battery-fed ECUs in engine control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and upstream DC-DC converter input capacitor. Use Value: Limits peak voltage to 27.6 V during ISO 7637-2 Pulse 5a, preventing damage to 36 V-rated input stages. | Use Scenario: Guarding analog outputs of pressure sensors exposed to EFT bursts in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: TVS connected across sensor output and ground to shunt 5 kV/500 Hz EFT noise coupled onto 4–20 mA loop wiring. Use Value: Clamps transients within 1 ns, preserving signal integrity and avoiding ADC saturation or microcontroller reset. |
| Consumer USB Power Input Protection | Telecom DC Feeder Line Protection |
Use Scenario: Protecting USB-C PD input circuitry in portable medical devices from hot-plug induced overshoot and cable discharge events. IC Role / Device Role / Timing Role: TVS installed at USB-C receptacle VBUS pin, referenced to chassis ground. Use Value: Withstands 10/1000 µs surges up to 400 W while maintaining <5 µA leakage at 5 V, avoiding standby current penalty. | Use Scenario: Safeguarding PoE-powered Ethernet switches against lightning-induced surges on 48 V DC feeder lines. IC Role / Device Role / Timing Role: TVS deployed on each DC feed pair (PSE side), coordinated with gas discharge tube primary protection. Use Value: Provides secondary clamping at 27.6 V to prevent MOSFET gate oxide rupture in active DC-DC controllers. |
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, 400 W PPPM, but VBR = 11.1–12.3 V (min/typ/max); not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial designs where AEC compliance is not mandated | Select SMAJ10A only if AEC-Q101 is unnecessary and higher VBR tolerance is acceptable for system margin |
| TPSMA10AHM3_A/H | Identical electrical specs and AEC-Q101 qualification; differs only in halogen-free molding compound and JESD201 Class 2 whisker rating | Required for RoHS+halogen-free compliance programs; identical thermal and clamping behavior | Choose TPSMA10AHM3_A/H when environmental compliance mandates halogen-free materials without sacrificing performance |
Compared with SMAJ10A and TPSMA10AHM3_A/H, the TPSMA10HE3_A/H provides AEC-Q101 qualification and RoHS compliance in a cost-optimized variant - making it the preferred choice for automotive Tier-1 suppliers requiring traceable sourcing and validated reliability data, while retaining full interchangeability in layout and thermal design.
Availability
TPSMA10HE3_A/H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC feeder line safeguarding requiring stable component supply across extended production lifecycles.
Supply support for TPSMA10HE3_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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on high-reliability and automotive-grade solutions.
The TPSMA10HE3_A/H belongs to Vishay's PAR® family of high-temperature-stable transient voltage suppressors, engineered specifically for harsh-environment clamping in automotive, industrial, and telecom infrastructure applications.
FAQ
What is the maximum clamping voltage of the TPSMA10HE3_A/H under a 10/1000 µs surge?
The TPSMA10HE3_A/H has a maximum clamping voltage (VC) of 27.6 V when subjected to a 20 A peak pulse current with a 10/1000 µs waveform. This value is measured per JEDEC standards and reflects worst-case clamping performance at room temperature; actual VC may decrease slightly at elevated junction temperatures due to negative dynamic resistance characteristics.
Is the TPSMA10HE3_A/H qualified to AEC-Q101 standards?
Yes, the TPSMA10HE3_A/H is fully AEC-Q101 qualified. The "HE3" suffix explicitly denotes RoHS-compliant and AEC-Q101-qualified construction, verified through temperature cycling, high-temperature reverse bias, and ESD testing per the AEC-Q101-004 and -011 specifications. Full qualification reports are available upon request from Vishay.
What is the stand-off voltage (VWM) of the TPSMA10HE3_A/H, and why does it matter?
The TPSMA10HE3_A/H has a stand-off voltage (VWM) of 8.65 V, meaning it remains in high-impedance blocking mode up to this reverse voltage. This parameter ensures no significant leakage current flows during normal operation - critical for low-power systems where standby current must stay below 5 µA, such as automotive always-on modules.
Can the TPSMA10HE3_A/H be used in bidirectional protection circuits?
No, the TPSMA10HE3_A/H is unidirectional only, as confirmed in the Vishay datasheet. It protects against positive transients relative to its cathode. For bidirectional protection (e.g., AC lines or differential signals), a separate bidirectional TVS like SMBJ10CA or two back-to-back unidirectional devices would be required - the TPSMA10HE3_A/H alone cannot clamp negative excursions.
What is the thermal derating behavior of the TPSMA10HE3_A/H above 25 °C ambient?
The TPSMA10HE3_A/H follows standard thermal derating per Figure 2 in the datasheet: peak pulse power (PPPM) decreases linearly from 400 W at 25 °C to zero at 185 °C junction temperature. At 125 °C TJ, PPPM is approximately 240 W. Designers must calculate actual TJ using PCB copper area and ambient conditions to ensure safe operation.
TPSMA10HE3_A/H 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/H FAQ
1.How can I place an order for TPSMA10HE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA10HE3_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 TPSMA10HE3_A/H reliable?
The price and inventory of TPSMA10HE3_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 TPSMA10HE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMA10HE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA10HE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA10HE3_A/H?
TPSMA10HE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA10HE3_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 TPSMA10HE3_A/H?
For technical support, including TPSMA10HE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA10HE3_A/H requirements.
6.How does Aetrix verify that TPSMA10HE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMA10HE3_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 TPSMA10HE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMA10HE3_A/H?
All TPSMA10HE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA10HE3_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 TPSMA10HE3_A/H part is unused and in its original packaging.
Return procedure for TPSMA10HE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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