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Vishay General Semiconductor - Diodes Division TPSMB10AHE3/5BT
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- Part No.:
- TPSMB10AHE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB10AHE3/5BT.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,601
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Product details
Overview
TPSMB10AHE3/5BT from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode designed for clamping inductive switching surges and lightning-induced transients on power rails and signal lines. It features a 10.0 V nominal breakdown voltage (VBR), 8.55 V maximum stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 14.5 V maximum clamping voltage at 14.5 A peak pulse current, and operates up to +185 °C junction temperature - deployed in automotive engine control units and industrial sensor interfaces.
For engineers reviewing the TPSMB10AHE3/5BT datasheet, TPSMB10AHE3/5BT pinout, TPSMB10AHE3/5BT application, or TPSMB10AHE3/5BT equivalent, this page delivers verified electrical parameters, SMB (DO-214AA) package details, AEC-Q101 qualification status, clamping performance under 10/1000 µs surge, and direct alternatives with documented parameter divergence.
Technical Context
The TPSMB10AHE3/5BT employs passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its unidirectional architecture provides precise reverse-biased clamping with 0.064 %/°C temperature coefficient of VBR, enabling predictable voltage threshold behavior across -65 °C to +185 °C operating range.
Rated for 600 W peak pulse power (10/1000 µs waveform) and 75 A non-repetitive forward surge current (8.3 ms half-sine), it meets MSL Level 1 reflow requirements (260 °C peak) and supports automotive-grade reliability via AEC-Q101 qualification - confirmed by HE3 suffix and RoHS-compliant matte tin plating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 9.5 V / 10.0 V / 10.5 V - defines precise reverse conduction onset; ensures reliable clamping above 8.55 V system operating rail |
| VWM | 8.55 V - maximum continuous reverse voltage before leakage exceeds 5 µA; sets safe margin below 10 V logic/power rails |
| VC @ IPPM | 14.5 V - clamped voltage at 14.5 A peak pulse; limits downstream IC stress during 600 W transient events |
| PPPM | 600 W - peak pulse power handling (10/1000 µs); sustains repetitive surge duty cycle ≤ 0.01 % without degradation |
| TJ max | +185 °C - enables placement near high-power components in engine bays or industrial motor drives without derating |
| IR @ VWM | 5 µA - ultra-low reverse leakage at 8.55 V; preserves battery life in always-on automotive modules |
| Package | SMB (DO-214AA) - standardized surface-mount footprint with 0.205" × 0.220" pad layout; compatible with automated SMT assembly |
Pinout & Package
SMB (DO-214AA) package with molded plastic body, matte tin-plated leads, cathode band marking, and UL 94 V-0 flammability rating. Dimensions: 0.130" × 0.155" × 0.084" (3.30 mm × 3.94 mm × 2.13 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-side reference | Connected to ground or lower-potential node; completes clamping path during overvoltage events |
| Cathode | Reverse-biased clamping node | Connected to protected line (e.g., 12 V rail); conducts when transient exceeds VBR, shunting energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood applications including ECU, body control, and ADAS sensor protection |
| 185 °C junction capability | Enables operation in high-ambient environments without thermal derating - critical for engine compartment placement |
| 600 W 10/1000 µs pulse rating | Handles ISO 7637-2 Pulse 1/2a/5a transients and IEC 61000-4-5 surge events in industrial power supplies |
| Low clamping ratio (VC/VBR = 1.45) | Minimizes voltage overshoot during clamping - protects 12 V-rated MOSFETs and microcontrollers with tight VDS margins |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and single-reflow processing at 260 °C peak - eliminates baking requirements in production |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protection of 12 V supply rail against load-dump and inductive kickback from fuel injectors and solenoids. IC Role / Device Role / Timing Role: Unidirectional TVS diode providing fast (<1 ns) clamping to limit rail voltage to ≤14.5 V during 600 W transients. Use Value: Prevents latch-up and gate oxide damage in MCU power management ICs and high-side drivers exposed to ISO 16750-2 transients. |
Use Scenario: Shielding 24 V digital input channels from field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Standoff-clamp device placed between terminal block and optocoupler input, absorbing IEC 61000-4-4 EFT bursts. Use Value: Maintains signal integrity by limiting transient voltage to <15 V, ensuring reliable opto-isolator triggering without false edge detection. |
| Telecom Power Supply Front-End | Consumer Appliance Motor Drive Board |
Use Scenario: Safeguarding AC/DC converter primary-side bias rails from lightning-induced surges entering via PoE or AC mains. IC Role / Device Role / Timing Role: Secondary-side TVS suppressing coupled transients on auxiliary 12 V bias supply feeding PWM controllers. Use Value: Enables compliance with ITU-T K.20/21 immunity standards by clamping 10/1000 µs surges to <14.5 V before reaching controller ICs. |
Use Scenario: Protecting H-bridge gate drivers from back-EMF spikes generated by brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Rail-to-rail clamp on 15 V gate drive supply, activated within nanoseconds of voltage excursion beyond 10.5 V. Use Value: Eliminates need for external snubbers by absorbing 600 W motor commutation energy, reducing BOM count and board space. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Lower PPPM (400 W), higher VC (16.7 V), same SMB package and VBR range | Not AEC-Q101 qualified; limited to commercial/industrial use where automotive reliability not required | Select SMAJ10A only for cost-sensitive non-automotive designs accepting reduced surge margin and no automotive qualification |
| TPSMB10AHM3/5BT | Identical electrical specs; halogen-free molding compound and JESD201 Class 2 whisker resistance - no performance difference | Required where halogen-free compliance (IEC 61249-2-21) or enhanced whisker resistance is mandated in medical or aerospace programs | Choose TPSMB10AHM3/5BT when RoHS+halogen-free and whisker resistance are contractual requirements - otherwise TPSMB10AHE3/5BT suffices |
Compared with SMAJ10A, TPSMB10AHE3/5BT delivers 50 % higher surge power headroom and automotive qualification; versus TPSMB10AHM3/5BT, it trades halogen-free content for identical clamping performance and broader supply availability.
Availability
TPSMB10AHE3/5BT is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC input conditioning, and telecom power supply front-end surge suppression requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for TPSMB10AHE3/5BT 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 diodes, rectifiers, TVS devices, and optoelectronics with emphasis on high-reliability, high-temperature, and automotive-qualified components.
The TPSMB series was engineered specifically for robust transient suppression in harsh environments - targeting under-hood automotive, industrial motor controls, and telecom infrastructure where 185 °C operation and AEC-Q101 validation are mandatory.
FAQ
What is the exact breakdown voltage tolerance for TPSMB10AHE3/5BT?
The TPSMB10AHE3/5BT has a guaranteed breakdown voltage range of 9.5 V (minimum) to 10.5 V (maximum) at 1 mA test current, with 10.0 V nominal value. This ±5 % tolerance is measured per ANSI/IEEE C62.35 standards and remains stable across temperature due to its 0.064 %/°C temperature coefficient - critical for consistent clamping in automotive ambient swings.
Is TPSMB10AHE3/5BT suitable for bidirectional transient protection?
No, TPSMB10AHE3/5BT is unidirectional only, as confirmed by Vishay's datasheet and ordering code structure ('A' suffix denotes unidirectional). For bidirectional protection, engineers must select a 'CA' variant such as TPSMB10CAHE3/5BT - using TPSMB10AHE3/5BT on AC-coupled or floating lines risks failure during negative transients.
Does TPSMB10AHE3/5BT require heatsinking in standard PCB layouts?
No additional heatsinking is required for TPSMB10AHE3/5BT under typical surge conditions. Its SMB package is rated for 600 W peak pulse power when mounted on 0.2" × 0.2" copper pads per terminal, and thermal resistance is optimized for transient dissipation - continuous power handling is not applicable since it operates only during short-duration surges.
What does the 'HE3/5BT' suffix indicate in TPSMB10AHE3/5BT?
The 'HE3' denotes RoHS-compliant, AEC-Q101-qualified construction with matte tin plating and JESD201 Class 2 whisker resistance; '5BT' specifies 7" tape-and-reel packaging with 750-unit quantity and standard orientation. This full suffix confirms automotive-grade reliability, lead-free compliance, and SMT-ready delivery format for TPSMB10AHE3/5BT.
How does TPSMB10AHE3/5BT perform at elevated junction temperatures?
TPSMB10AHE3/5BT maintains full specification compliance up to +185 °C junction temperature, with VBR shifting predictably per αT = 0.064 %/°C. At 150 °C, its VBR increases by ~8 % - still within safe clamping margin for 12 V systems - and leakage remains ≤20 µA, ensuring stable operation in engine bay or industrial enclosure deployments.
TPSMB10AHE3/5BT 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 (SMBJ)
TPSMB10AHE3/5BT FAQ
1.How can I place an order for TPSMB10AHE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB10AHE3/5BT 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 TPSMB10AHE3/5BT reliable?
The price and inventory of TPSMB10AHE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB10AHE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB10AHE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB10AHE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB10AHE3/5BT?
TPSMB10AHE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB10AHE3/5BT 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 TPSMB10AHE3/5BT?
For technical support, including TPSMB10AHE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB10AHE3/5BT requirements.
6.How does Aetrix verify that TPSMB10AHE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB10AHE3/5BT 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 TPSMB10AHE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB10AHE3/5BT?
All TPSMB10AHE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB10AHE3/5BT, 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 TPSMB10AHE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB10AHE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB10AHE3/5BT Tags
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