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Vishay General Semiconductor - Diodes Division TPSMB30-12HE3/5BT
- Part No.:
- TPSMB30-12HE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB30-12HE3/5BT.pdf
- Description:
- TVS DIODE 24.3VWM 43.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,874
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Product details
Overview
TPSMB30-12HE3/5BT 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 30 V breakdown voltage (VBR = 28.5–31.5 V at IT = 1 mA), 25.6 V stand-off voltage (VWM), 41.4 V maximum clamping voltage (VC) at 14.5 A peak pulse current, 600 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - used in automotive power supply protection and industrial sensor interface circuits.
For engineers reviewing the TPSMB30-12HE3/5BT datasheet, TPSMB30-12HE3/5BT pinout, TPSMB30-12HE3/5BT application, or TPSMB30-12HE3/5BT equivalent, this page delivers verified electrical parameters, SMB (DO-214AA) package dimensions, cathode/anode terminal roles, AEC-Q101 qualification status, and real-world surge protection use cases aligned with IEC 61000-4-5 and ISO 7637-2 compliance requirements.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its unidirectional polarity enables forward-biased conduction during overvoltage events while maintaining low leakage (<1 µA at VWM) under normal operation.
The device meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and is qualified to AEC-Q101 - confirming suitability for automotive under-hood and engine control unit (ECU) applications requiring TJ = 185 °C capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 28.5 V / 30.0 V / 31.5 V at IT = 1 mA - defines precise voltage threshold where clamping initiates |
| VWM | 25.6 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 41.4 V at 14.5 A (10/1000 µs) - limits downstream IC voltage stress during surge events |
| PPPM | 600 W - peak pulse power handling capacity under standardized transient waveform |
| TJ max. | +185 °C - enables reliable operation in high-temperature automotive and industrial environments |
| Polarity | Unidirectional - provides reverse-biased clamping only; requires correct cathode orientation in circuit |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 0.220" x 0.130" footprint and thermal pad compatibility |
Pinout & Package
SMB (DO-214AA) package: molded epoxy case with matte tin-plated leads, UL 94 V-0 flammability rating, cathode indicated by color band. Dimensions: 5.59 mm × 3.30 mm × 2.20 mm (L × W × H); recommended copper pad size: 5.0 mm × 5.0 mm per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line; conducts reverse current during overvoltage to clamp voltage |
| Anode | Reference/ground return path | Typically tied to system ground or lower-potential rail; completes clamping current path |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR drift < ±5 % over 1000 hrs at 150 °C, critical for long-life automotive modules |
| 600 W peak pulse power (10/1000 µs) | Withstands repetitive 0.01 % duty cycle surges without degradation - validated per IEC 61000-4-5 |
| AEC-Q101 qualification (HE3 suffix) | Confirms reliability for automotive powertrain and body electronics per stress test requirements |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage margin between clamping and IC absolute maximum ratings |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture-related popcorning or delamination |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Transient voltage suppressor placed at input filter stage to limit rail voltage excursion before LDO or MCU. Use Value: Clamps to ≤41.4 V during 14.5 A surge, preventing damage to downstream 36 V-rated regulators and microcontrollers. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Unidirectional TVS connected between signal line and ground to shunt fast transients before op-amp input. Use Value: Sub-1 ns response time and <1 µA leakage at 25.6 V ensure signal integrity and minimal offset error in precision measurement paths. |
| Telecom Line Card Surge Suppression | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding Ethernet PHY power pins and data lines against induced surges from nearby AC mains or lightning coupling. IC Role / Device Role / Timing Role: Standoff-clamp TVS on 3.3 V/5 V bias rails feeding magnetics and PHY ICs. Use Value: 25.6 V VWM allows safe operation across wide input tolerances while clamping to 41.4 V to protect 36 V absolute-maximum-rated PHYs. | Use Scenario: Suppressing back-EMF spikes from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Mounted across motor terminals to absorb inductive kickback energy during MOSFET turn-off. Use Value: 75 A IFSM rating handles repeated 8.3 ms half-sine surges, extending MOSFET lifetime and reducing EMI emissions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A | Same SMB package, identical VBR (28.5–31.5 V), but rated for 600 W with 10/1000 µs waveform and no AEC-Q101 qualification | Not qualified for automotive under-hood use; suitable for commercial/industrial PCBs without automotive certification needs | Select SMBJ30A when AEC-Q101 is not required and cost optimization is prioritized |
| SMCJ30A | Larger SMC (DO-214AB) package, same electrical specs, higher 1500 W PPPM, but 2.5× larger footprint and 3× higher thermal mass | Better suited for high-energy industrial motor drives where PCB space permits and surge energy exceeds 600 W | Choose SMCJ30A only if board layout accommodates larger package and higher surge margin is needed |
Compared with SMBJ30A and SMCJ30A, the TPSMB30-12HE3/5BT uniquely combines AEC-Q101 qualification, SMB footprint, and 600 W capability - making it the optimal choice for space-constrained automotive modules requiring certified reliability without layout redesign.
Availability
TPSMB30-12HE3/5BT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom line cards, and consumer appliance motor drive circuits requiring stable component supply and full traceability.
Supply support for TPSMB30-12HE3/5BT 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-grade performance.
The TPSMB series belongs to Vishay's PAR® (Protected Anisotropic Rectifier) transient voltage suppressor product line, engineered specifically for robust surge immunity in harsh environments including automotive power systems and industrial automation equipment.
FAQ
What is the exact breakdown voltage range of the TPSMB30-12HE3/5BT?
The TPSMB30-12HE3/5BT has a guaranteed breakdown voltage (VBR) range of 28.5 V to 31.5 V at test current IT = 1 mA, with nominal value 30.0 V. This specification is measured per ANSI/IEEE C62.35 and confirmed in Vishay Document Number 88406, Revision 23-Jan-2024. The TPSMB30-12HE3/5BT maintains this tolerance across its qualified temperature range.
Is the TPSMB30-12HE3/5BT AEC-Q101 qualified?
Yes, the TPSMB30-12HE3/5BT is AEC-Q101 qualified. Its HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101-qualified construction, verified per Vishay's qualification report referenced in Document Number 88406. This makes the TPSMB30-12HE3/5BT suitable for automotive powertrain and body electronics applications requiring certified reliability.
What is the maximum clamping voltage of the TPSMB30-12HE3/5BT under surge conditions?
The TPSMB30-12HE3/5BT exhibits a maximum clamping voltage (VC) of 41.4 V at peak pulse current IPPM = 14.5 A using the standardized 10/1000 µs waveform. This value is measured per JEDEC test methods and ensures predictable overvoltage limiting for downstream components such as 36 V-rated regulators or microcontrollers in the protected circuit.
Does the TPSMB30-12HE3/5BT have unidirectional or bidirectional polarity?
The TPSMB30-12HE3/5BT is unidirectional only, as stated in the Vishay datasheet. Its cathode is marked by a color band, and it conducts surge current only when reverse-biased - meaning it must be oriented with cathode toward the protected line and anode toward ground or lower potential. Bidirectional variants are not offered in the TPSMB30-12HE3/5BT family.
What package type does the TPSMB30-12HE3/5BT use, and what are its key mechanical features?
The TPSMB30-12HE3/5BT uses the SMB (DO-214AA) surface-mount package: 5.59 mm × 3.30 mm × 2.20 mm, UL 94 V-0 rated molding compound, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and MSL Level 1 rating (260 °C peak reflow). The cathode band identifies polarity, and recommended copper pad size is 5.0 mm × 5.0 mm per terminal.
TPSMB30-12HE3/5BT 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):
- 24.3V
- Voltage - Breakdown (Min):
- 27V
- Voltage - Clamping (Max) @ Ipp:
- 43.5V
- Current - Peak Pulse (10/1000µs):
- 13.8A
- 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)
TPSMB30-12HE3/5BT FAQ
1.How can I place an order for TPSMB30-12HE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB30-12HE3/5BT 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 TPSMB30-12HE3/5BT reliable?
The price and inventory of TPSMB30-12HE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB30-12HE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB30-12HE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB30-12HE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB30-12HE3/5BT?
TPSMB30-12HE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB30-12HE3/5BT 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 TPSMB30-12HE3/5BT?
For technical support, including TPSMB30-12HE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB30-12HE3/5BT requirements.
6.How does Aetrix verify that TPSMB30-12HE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB30-12HE3/5BT 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 TPSMB30-12HE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB30-12HE3/5BT?
All TPSMB30-12HE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB30-12HE3/5BT, 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 TPSMB30-12HE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB30-12HE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB30-12HE3/5BT Tags
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