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Vishay General Semiconductor - Diodes Division TPSMB10A-1BHE3/5BT
- Part No.:
- TPSMB10A-1BHE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB10A-1BHE3/5BT.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,099
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Product details
Overview
TPSMB10A-1BHE3/5BT from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching transients and lightning-induced surges on power rails and signal lines. It features a 10 V breakdown voltage (VBR min = 9.5 V), 8.55 V standoff voltage (VWM), 600 W peak pulse power (10/1000 µs), 14.5 V clamping voltage at 41.4 A, and operates up to +185 °C junction temperature.
For engineers reviewing the TPSMB10A-1BHE3/5BT datasheet, TPSMB10A-1BHE3/5BT pinout, TPSMB10A-1BHE3/5BT application, or TPSMB10A-1BHE3/5BT equivalent, this page delivers verified electrical specs, SMB (DO-214AA) package details, automotive-grade reliability data (AEC-Q101 qualified), and real-world protection use cases for industrial power supplies, automotive sensor interfaces, and telecom line protection.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with optimized junction passivation for stable clamping under high-temperature stress. Its unidirectional polarity and low incremental surge resistance enable precise overvoltage suppression during fast-rising transients (response time < 1.0 ps).
The device meets MSL Level 1 per J-STD-020, supports 260 °C lead-free reflow, and is rated for repetitive 10/1000 µs surge pulses at 0.01% duty cycle - validated for automotive ECUs, industrial motor drives, and 48 V board-level power systems requiring TJ = 185 °C operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 9.5 V / 10.0 V / 10.5 V - ensures reliable conduction onset above system operating voltage while avoiding false triggering |
| VWM | 8.55 V - maximum continuous reverse working voltage compatible with 9 V nominal supply rails |
| VC @ IPPM | 14.5 V - clamps 41.4 A surge to safe levels for downstream 16 V-rated ICs and MOSFETs |
| PPPM | 600 W - sustains 10/1000 µs transients common in automotive load-dump and inductive kick scenarios |
| TJ max | +185 °C - enables placement near hot components (e.g., power converters, engine control modules) |
| IFSM | 75 A - withstands 8.3 ms half-sine surge without degradation, critical for motor driver protection |
| Leakage @ VWM | 5 µA - negligible standby current draw in battery-powered sensor nodes |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected circuit ground or low-side return path |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected line (e.g., 12 V rail, CAN_H, sensor VDD) |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Provides robust immunity against ISO 7637-2 Pulse 1/2a/5a transients in automotive 12 V systems |
| TJ = 185 °C capability | Supports under-hood deployment without derating in engine control units and ADAS domain controllers |
| AEC-Q101 qualification (HE3 suffix) | Validates reliability for automotive safety-critical applications per stress test requirements |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage overshoot during fast transients, protecting sensitive gate oxides and ADC inputs |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free assembly without moisture sensitivity concerns |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Suppressing load-dump transients (ISO 16750-2) on 12 V battery-fed ECUs in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and DC-DC converter input stage. Use Value: Clamps 35 V/100 ms transients to ≤14.5 V, preventing damage to 16 V-rated buck controller ICs and enabling compliance with OEM stress test requirements. |
Use Scenario: Protecting analog output lines of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: TVS mounted directly at connector interface to shunt ESD (IEC 61000-4-2) and cable discharge events. Use Value: Limits induced voltage to <15 V within nanoseconds, preserving 24-bit ADC accuracy and preventing latch-up in precision op-amps. |
| Telecom Line Surge Protection | Consumer Power Adapter Input Protection |
|
Use Scenario: Guarding PoE-powered Ethernet switch ports against lightning-induced surges on twisted-pair cables. IC Role / Device Role / Timing Role: Paired unidirectional TVS on each data pair (e.g., TX+/TX−) referenced to local ground plane. Use Value: Absorbs 600 W common-mode surges per pair while maintaining signal integrity up to 100 MHz due to low capacitance (<100 pF). |
Use Scenario: Safeguarding AC-DC adapter primary-side rectifier outputs against mains overvoltage spikes. IC Role / Device Role / Timing Role: TVS connected across bulk capacitor terminals to clamp 1 kV/1.2 µs surges per IEC 61000-4-5. Use Value: Prevents capacitor overvoltage failure and secondary-side regulator shutdown by limiting peak voltage to 14.5 V during 41.4 A transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Lower PPPM (400 W), same VBR range, SMA package (smaller thermal mass) | Limited to lower-energy transients (e.g., ESD-only); not suitable for automotive load-dump | Select when space-constrained and surge energy <400 W; verify thermal derating at TJ > 150 °C |
| TPSMB10CA | Bi-directional variant; identical VBR, VC, and PPPM but symmetric clamping | Required for AC-coupled or bidirectional signal lines (e.g., RS-485, USB D+/D−) | Choose only if protecting differential pairs or AC signals; unidirectional TPSMB10A-1BHE3/5BT is optimal for DC rails |
Compared with SMAJ10A and TPSMB10CA, the TPSMB10A-1BHE3/5BT delivers higher surge robustness (600 W vs. 400 W) and automotive qualification - making it the preferred choice for 12 V power rail protection where AEC-Q101 compliance and thermal resilience are mandatory.
Availability
TPSMB10A-1BHE3/5BT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal conditioning circuits, and telecom infrastructure power interfaces requiring stable component supply, long-term lifecycle support, and traceable AEC-Q101 qualified parts.
Supply support for TPSMB10A-1BHE3/5BT 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, MOSFETs, and passive components for automotive, industrial, and computing markets.
The TPSMB10A-1BHE3/5BT belongs to Vishay's PAR® family of surface-mount TVS diodes, engineered specifically for high-temperature, high-surge environments including engine compartments, industrial motor drives, and outdoor telecom equipment.
FAQ
What is the clamping voltage of the TPSMB10A-1BHE3/5BT at its rated peak pulse current?
The TPSMB10A-1BHE3/5BT has a maximum clamping voltage (VC) of 14.5 V at its peak pulse current (IPPM) of 41.4 A, measured using the standard 10/1000 µs waveform. This value ensures downstream 16 V-rated components remain within safe operating limits during surge events. The TPSMB10A-1BHE3/5BT achieves this with low incremental surge resistance, minimizing voltage overshoot beyond the specified VC.
Is the TPSMB10A-1BHE3/5BT qualified for automotive applications?
Yes, the TPSMB10A-1BHE3/5BT carries the HE3 suffix, confirming it is RoHS-compliant and AEC-Q101 qualified per Vishay's documentation. It is rated for operation up to +185 °C junction temperature and meets MSL Level 1 reflow requirements - making it suitable for under-hood automotive modules such as body control units and ADAS power supplies. The TPSMB10A-1BHE3/5BT is explicitly listed in Vishay's AEC-Q101 qualified product matrix.
What package type does the TPSMB10A-1BHE3/5BT use, and what are its key mechanical features?
The TPSMB10A-1BHE3/5BT uses the SMB (DO-214AA) surface-mount package, with dimensions of 4.57 mm × 3.94 mm × 2.20 mm. Key mechanical features include matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, UL 94 V-0 molding compound, and cathode identification via a visible color band. The TPSMB10A-1BHE3/5BT is supplied in 7″ or 13″ plastic tape-and-reel formats per ordering code.
How does the TPSMB10A-1BHE3/5BT differ from the bi-directional TPSMB10CA?
The TPSMB10A-1BHE3/5BT is unidirectional, clamping only reverse-voltage transients relative to its cathode, whereas the TPSMB10CA provides symmetrical clamping for both polarities. Both share identical VBR, VC, and PPPM ratings, but the TPSMB10A-1BHE3/5BT is optimized for DC power rail protection (e.g., 12 V inputs), while TPSMB10CA suits AC-coupled or differential signal lines like RS-485. The TPSMB10A-1BHE3/5BT cannot replace TPSMB10CA in bidirectional applications.
What is the maximum leakage current of the TPSMB10A-1BHE3/5BT at its standoff voltage?
The TPSMB10A-1BHE3/5BT exhibits a maximum reverse leakage current (IR) of 5 µA at its 8.55 V standoff voltage (VWM) and 25 °C ambient temperature. At elevated junction temperatures (e.g., 150 °C), leakage increases to ≤20 µA - still well below thresholds that would impact battery life or sensor bias stability. This low leakage is maintained across the full operating temperature range of the TPSMB10A-1BHE3/5BT.
TPSMB10A-1BHE3/5BT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 41.4A
- 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)
TPSMB10A-1BHE3/5BT FAQ
1.How can I place an order for TPSMB10A-1BHE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB10A-1BHE3/5BT 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 TPSMB10A-1BHE3/5BT reliable?
The price and inventory of TPSMB10A-1BHE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB10A-1BHE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB10A-1BHE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB10A-1BHE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB10A-1BHE3/5BT?
TPSMB10A-1BHE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB10A-1BHE3/5BT 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 TPSMB10A-1BHE3/5BT?
For technical support, including TPSMB10A-1BHE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB10A-1BHE3/5BT requirements.
6.How does Aetrix verify that TPSMB10A-1BHE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB10A-1BHE3/5BT 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 TPSMB10A-1BHE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB10A-1BHE3/5BT?
All TPSMB10A-1BHE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB10A-1BHE3/5BT, 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 TPSMB10A-1BHE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB10A-1BHE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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