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Vishay General Semiconductor - Diodes Division TPSMA15AHE3_B/H
- Part No.:
- TPSMA15AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA15AHE3_B/H.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPSMA15AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 15.0 V nominal breakdown voltage (VBR), 12.8 V stand-off voltage (VWM), 21.2 V maximum clamping voltage (VC) at 5.0 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 power supply input stages.
For engineers reviewing the TPSMA15AHE3_B/H datasheet, TPSMA15AHE3_B/H pinout, TPSMA15AHE3_B/H application, or TPSMA15AHE3_B/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, clamping performance under 10/1000 µs surge, thermal derating above 25 °C, and compatibility with standard SMA PCB pad layouts per JESD22-B102 solderability requirements.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping across -65 °C to +185 °C operating range. Its 0.076 %/°C temperature coefficient of VBR enables predictable voltage shift under thermal stress, and its low incremental surge resistance ensures minimal overshoot during fast transients.
The device operates exclusively in unidirectional mode with cathode-band polarity marking, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. It is rated for 40 A non-repetitive forward surge current (8.3 ms half-sine) and exhibits 1.0 µA max reverse leakage at VWM and 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 14.3 V / 15.0 V / 15.8 V - defines precise voltage threshold where avalanche conduction begins under 1.0 mA test current |
| VWM | 12.8 V - maximum continuous reverse working voltage before significant leakage; sets safe operating margin below VBR |
| VC @ IPPM | 21.2 V at 5.0 A - clamped voltage during full-rated 400 W transient, directly limiting downstream IC stress |
| PPPM | 400 W (10/1000 µs) - peak surge power handling capability under standardized lightning/inductive-switching waveform |
| TJ max. | +185 °C - enables use in under-hood automotive environments and high-temperature industrial enclosures without derating |
| Polarity | Unidirectional - blocks reverse current only; requires correct orientation relative to protected line polarity |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 0.208" x 0.157" footprint and matte tin-plated leads |
Pinout & Package
SMA (DO-214AC) package with axial lead configuration: molded epoxy body, cathode band marking, and two terminals - anode and cathode - mounted on PCB using 5.0 mm × 5.0 mm copper pads per terminal per JEDEC standards.
| 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 event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD22-A114 |
| 185 °C junction rating | Supports operation in engine control units, ADAS sensors, and industrial motor drives without thermal shutdown |
| 400 W peak pulse power (10/1000 µs) | Withstands ISO 7637-2 Pulse 1/2a/5a surges and IEC 61000-4-5 Combination Wave (1.2/50 µs + 8/20 µs) |
| Low clamping ratio (VC/VBR = 1.41) | Minimizes overvoltage stress on downstream MOSFET gates and MCU I/O pins during clamping |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free assembly without moisture-induced popcorn failure |
Applications
| Automotive Sensor Protection | Industrial Power Input Stage |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load-dump and jump-start transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp induced spikes before they reach sensitive analog inputs or communication PHYs. Use Value: Limits transient voltage to ≤21.2 V during 5 A surge, preserving signal integrity and preventing latch-up in AEC-Q100 qualified MCUs. | Use Scenario: Safeguarding 24 V DC input rails of PLC modules and motor controllers against inductive switching noise and AC line cross-coupling. IC Role / Device Role / Timing Role: Primary overvoltage clamp on bulk input, positioned upstream of DC-DC converters and EMI filters to absorb energy before it propagates into regulation circuitry. Use Value: Handles repetitive 400 W pulses at 0.01% duty cycle while maintaining <1.0 µA leakage at 12.8 V, ensuring no standby power penalty. |
| Consumer Power Adapter Interface | Telecom Line Card Surge Suppression |
Use Scenario: Secondary-side transient suppression on USB-C PD adapter output rails exposed to hot-plug and cable ESD events. IC Role / Device Role / Timing Role: Fast-response unidirectional clamp on VBUS line, coordinated with primary-side MOV and secondary-side ceramic capacitors for multi-stage protection. Use Value: Achieves <1 ns response time and clamps 8/20 µs surges to 21.2 V, meeting IEC 61000-4-2 Level 4 (15 kV air/8 kV contact) compliance. | Use Scenario: Protecting Ethernet PHY interfaces and PoE injectors on telecom access equipment subjected to lightning-induced surges on twisted-pair lines. IC Role / Device Role / Timing Role: Line-to-ground TVS on differential pairs, used in conjunction with common-mode chokes and gas discharge tubes for hybrid surge mitigation. Use Value: Provides 21.2 V clamping at 5 A with 0.076 %/°C VBR stability, enabling consistent protection across -40 °C to +85 °C ambient operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | Same SMA package, 15 V VBR, but rated for 400 W with 1.0 mA IT; lower TJ max. (150 °C); not AEC-Q101 qualified | Lacks automotive qualification and high-temperature capability; suitable for commercial-grade consumer or office equipment only | Select SMAJ15A only if AEC-Q101 and >150 °C operation are not required; verify layout compatibility with identical DO-214AC footprint |
| TPSMA15AHM3_B/H | Identical electrical specs and AEC-Q101 qualification; differs only in halogen-free molding compound and JESD201 Class 2 whisker resistance | No functional difference; chosen when RoHS + halogen-free compliance is mandated by OEM environmental policy | TPSMA15AHM3_B/H is direct material substitute where halogen-free requirement applies; same thermal and electrical behavior |
Compared with SMAJ15A and TPSMA15AHM3_B/H, the TPSMA15AHE3_B/H uniquely combines AEC-Q101 qualification, 185 °C junction rating, and RoHS compliance in a single standard-grade variant - making it optimal for cost-sensitive automotive Tier 2 suppliers requiring proven reliability without halogen-free overhead.
Availability
TPSMA15AHE3_B/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial power input staging, and telecom line card surge suppression requiring stable component supply, traceable lot history, and long-term lifecycle support.
Supply support for TPSMA15AHE3_B/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 components.
The TPSMA series belongs to Vishay's PAR® (Protected Avalanche Rectifier) transient suppression platform, engineered specifically for robust, high-temperature-stable clamping in harsh-environment applications including engine control, ADAS, and industrial automation.
FAQ
What is the breakdown voltage tolerance for TPSMA15AHE3_B/H?
The TPSMA15AHE3_B/H has a specified breakdown voltage range of 14.3 V (min) to 15.8 V (max) at 1.0 mA test current, with 15.0 V nominal. This ±5% tolerance ensures predictable clamping onset across production lots and temperature extremes up to 185 °C junction temperature.
Is TPSMA15AHE3_B/H compatible with lead-free reflow processes?
Yes, TPSMA15AHE3_B/H meets MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C, making it fully compatible with standard lead-free soldering profiles. Its matte tin-plated leads comply with J-STD-002 and JESD22-B102 solderability requirements.
Does TPSMA15AHE3_B/H have AEC-Q101 qualification?
Yes, TPSMA15AHE3_B/H is explicitly AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in datasheet 88405. This qualification covers stress tests including HTGB, H3TRB, and temperature cycling for automotive under-hood deployment.
What is the maximum clamping voltage of TPSMA15AHE3_B/H at rated surge current?
The TPSMA15AHE3_B/H has a maximum clamping voltage (VC) of 21.2 V at 5.0 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuits during surge events.
How does the temperature coefficient affect TPSMA15AHE3_B/H performance?
The TPSMA15AHE3_B/H has a VBR temperature coefficient of +0.076 %/°C. This means its breakdown voltage increases by approximately 11.4 mV/°C above 25 °C, enabling stable clamping behavior across its full -65 °C to +185 °C operating range without unexpected turn-on or loss of margin.
TPSMA15AHE3_B/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:
- Active
- 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):
- 18.9A
- 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)
TPSMA15AHE3_B/H FAQ
1.How can I place an order for TPSMA15AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA15AHE3_B/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 TPSMA15AHE3_B/H reliable?
The price and inventory of TPSMA15AHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA15AHE3_B/H is usually 5 days.
3.What payment methods are accepted for TPSMA15AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA15AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA15AHE3_B/H?
TPSMA15AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA15AHE3_B/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 TPSMA15AHE3_B/H?
For technical support, including TPSMA15AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA15AHE3_B/H requirements.
6.How does Aetrix verify that TPSMA15AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All TPSMA15AHE3_B/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 TPSMA15AHE3_B/H meets industry standards.
7.What is the process for return or replacement of TPSMA15AHE3_B/H?
All TPSMA15AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA15AHE3_B/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 TPSMA15AHE3_B/H part is unused and in its original packaging.
Return procedure for TPSMA15AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA15AHE3_B/H Tags
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