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Vishay General Semiconductor - Diodes Division TPSMB15AHE3_A/H
- Part No.:
- TPSMB15AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB15AHE3_A/H.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,634
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Product details
Overview
TPSMB15AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode designed for clamping inductive load switching and lightning-induced transients on power rails and signal lines. It features a 15.0 V nominal breakdown voltage (VBR), 12.8 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 21.2 V maximum clamping voltage at 28.3 A, and operates up to +185 °C junction temperature - suitable for automotive power rail protection.
For engineers reviewing the TPSMB15AHE3_A/H datasheet, TPSMB15AHE3_A/H pinout, TPSMB15AHE3_A/H application, or TPSMB15AHE3_A/H equivalent, this page delivers verified electrical parameters, SMB (DO-214AA) package details, AEC-Q101 qualification status, thermal derating curves, and real-world use cases in automotive ECUs and industrial sensor interfaces.
Technical Context
The TPSMB15AHE3_A/H uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and excellent clamping performance under repetitive 10/1000 µs transients. Its unidirectional polarity and cathode-band marking align with standard SMB layout conventions for reverse-biased protection placement across DC inputs.
Rated for TJ = –65 °C to +185 °C, it supports high-reliability automotive applications where thermal stability is critical; its 0.076 %/°C VBR temperature coefficient enables predictable voltage shift over temperature, and its MSL Level 1 rating ensures robust reflow compatibility without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 14.3 / 15.0 / 15.8 V - defines precise clamping onset threshold at 1 mA test current; ensures reliable turn-on before downstream IC damage. |
| VWM | 12.8 V - maximum continuous reverse working voltage; allows safe operation below breakdown during normal 12 V system operation. |
| VC @ IPPM | 21.2 V - clamped voltage at 28.3 A peak pulse; limits transient energy delivered to protected circuitry within safe margin. |
| PPPM | 600 W - peak pulse power handling (10/1000 µs); sustains automotive ISO 7637-2 Pulse 1/2a/5a surges without degradation. |
| IFSM | 75 A - non-repetitive forward surge current (8.3 ms half-sine); withstands motor commutation spikes in power electronics. |
| TJ max. | +185 °C - extended junction temperature rating; enables placement near hot components in engine control units and power converters. |
| αT | 0.076 %/°C - temperature coefficient of VBR; supports accurate transient margin calculation across full operating range. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Cathode identified by color band; anode and cathode terminals are axially oriented along the body length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance return plane; completes clamping loop during overvoltage events. |
| Cathode | Protected line connection point | Connected to the line being protected (e.g., 12 V rail); reverse-biased during normal operation, conducts only during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables compliance with ISO 7637-2 and SAE J1113-11 surge immunity requirements for automotive modules. |
| TJ = 185 °C capability | Supports under-hood deployment in ECU and body control modules without thermal derating penalties. |
| AEC-Q101 qualification (HE3 suffix) | Validates reliability for automotive-grade production use, including HTOL, TC, and HAST stress testing. |
| MSL Level 1 (260 °C peak) | Eliminates pre-bake requirement for lead-free reflow assembly, reducing manufacturing complexity and cost. |
| Low clamping ratio (VC/VBR ≈ 1.41) | Minimizes voltage overshoot during fast transients, improving protection margin for 16 V-rated downstream components. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply lines in engine control units against load dump and alternator ripple transients per ISO 7637-2. IC Role / Device Role: Unidirectional TVS diode placed between battery rail and local regulator input. Use Value: Clamps transients to ≤21.2 V, preserving integrity of 24 V-tolerant LDOs and microcontrollers without derating. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation systems. IC Role / Device Role: Low-capacitance transient suppressor on differential or single-ended signal traces. Use Value: Limits induced voltage to <22 V during ±8 kV contact ESD (IEC 61000-4-2), preventing ADC saturation and latch-up. |
| Consumer Power Adapter Input Protection | Telecom DC Feeder Line Surge Suppression |
Use Scenario: Safeguarding AC/DC adapter primary-side rectifier outputs from surge coupling via mains input. IC Role / Device Role: Secondary-side TVS on bulk capacitor node to absorb residual switching transients. Use Value: Absorbs 600 W pulses without failure, maintaining adapter reliability under EN 61000-4-5 Level 3 surge stress. | Use Scenario: Protecting PoE-powered equipment front-end circuits from induced surges on 48 V DC feeder lines. IC Role / Device Role: Unidirectional clamp on DC input rail upstream of DC-DC converter. Use Value: Withstands repetitive 10/1000 µs surges up to 28.3 A while holding clamping voltage below 22 V, ensuring uninterrupted data link operation. |
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 | 400 W PPPM, 24.4 V VC @ 24.2 A, same SMB package, no AEC-Q101 qualification | Limited to commercial/industrial use; not validated for automotive thermal cycling or humidity exposure | Select when cost sensitivity outweighs automotive qualification needs and lower surge energy suffices. |
| SMCJ15A | 1500 W PPPM, 24.4 V VC @ 61.5 A, larger SMC (DO-214AB) package, AEC-Q101 available (HM3 suffix) | Higher surge capacity but requires PCB area increase; better for ISO 7637-2 Pulse 5a worst-case scenarios | Choose when system-level surge testing exceeds 600 W requirements and board space permits larger footprint. |
Compared with SMAJ15A and SMCJ15A, the TPSMB15AHE3_A/H delivers optimal balance of AEC-Q101 compliance, 600 W surge capability, and SMB footprint - making it ideal for space-constrained automotive modules where qualification and thermal robustness are mandatory.
Availability
TPSMB15AHE3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power feeders requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for TPSMB15AHE3_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 performance.
The TPSMB series belongs to Vishay's PAR® transient suppression platform, engineered specifically for high-temperature, high-surge environments in automotive and industrial power systems - delivering consistent clamping behavior across extreme thermal and electrical stress conditions.
FAQ
What is the maximum clamping voltage of the TPSMB15AHE3_A/H at its rated peak pulse current?
The TPSMB15AHE3_A/H has a maximum clamping voltage (VC) of 21.2 V at its rated peak pulse current (IPPM) of 28.3 A, measured using a 10/1000 µs waveform. This value is guaranteed per Vishay's datasheet revision 23-Jan-2024 (Document Number: 88406) and reflects worst-case clamping performance under standardized surge conditions. The TPSMB15AHE3_A/H maintains this clamping level across its full operating temperature range, supporting robust design margins for 16 V-rated downstream components.
Is the TPSMB15AHE3_A/H qualified to AEC-Q101 standards?
Yes, the TPSMB15AHE3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101 qualified construction. This qualification covers stress tests including high-temperature operating life (HTOL), temperature cycling (TC), and highly accelerated stress test (HAST), validating suitability for automotive powertrain and chassis applications. The TPSMB15AHE3_A/H meets all requirements specified in the AEC-Q101 Rev D standard.
What is the standoff voltage (VWM) of the TPSMB15AHE3_A/H, and how does it relate to 12 V automotive systems?
The TPSMB15AHE3_A/H has a standoff voltage (VWM) of 12.8 V, meaning it remains non-conductive under normal 12 V system operation, including typical battery variations (11–14.5 V). This provides a 0.8 V margin above nominal 12 V and accommodates alternator regulation peaks without leakage or thermal stress. The TPSMB15AHE3_A/H thus functions reliably as a passive protector on vehicle power rails without false triggering during routine operation.
Does the TPSMB15AHE3_A/H have a defined temperature coefficient for its breakdown voltage?
Yes, the TPSMB15AHE3_A/H has a specified temperature coefficient (αT) of +0.076 %/°C for its breakdown voltage (VBR). This positive coefficient means VBR increases linearly with junction temperature, enabling accurate prediction of clamping behavior across –65 °C to +185 °C. Designers can apply the formula VBR at TJ = VBR at 25 °C × (1 + αT × (TJ − 25)) to calculate threshold shifts - a key parameter for TPSMB15AHE3_A/H in thermally aggressive under-hood locations.
What packaging and moisture sensitivity level (MSL) applies to the TPSMB15AHE3_A/H?
The TPSMB15AHE3_A/H is supplied in 7" plastic tape and reel (package code H, base quantity 750), with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. It meets MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C - eliminating the need for dry-packaging or baking prior to lead-free assembly. This MSL rating is explicitly confirmed in Vishay's datasheet for the TPSMB15AHE3_A/H and supports high-yield SMT manufacturing.
TPSMB15AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- 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):
- 28.3A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMB)
TPSMB15AHE3_A/H FAQ
1.How can I place an order for TPSMB15AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB15AHE3_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 TPSMB15AHE3_A/H reliable?
The price and inventory of TPSMB15AHE3_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 TPSMB15AHE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMB15AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB15AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB15AHE3_A/H?
TPSMB15AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB15AHE3_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 TPSMB15AHE3_A/H?
For technical support, including TPSMB15AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB15AHE3_A/H requirements.
6.How does Aetrix verify that TPSMB15AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMB15AHE3_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 TPSMB15AHE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMB15AHE3_A/H?
All TPSMB15AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB15AHE3_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 TPSMB15AHE3_A/H part is unused and in its original packaging.
Return procedure for TPSMB15AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB15AHE3_A/H Tags
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