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Vishay General Semiconductor - Diodes Division TPSMB30A-1BHE3/5BT
- Part No.:
- TPSMB30A-1BHE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB30A-1BHE3/5BT.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,240
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Product details
Overview
TPSMB30A-1BHE3/5BT 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 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, and 600 W peak pulse power rating per 10/1000 µs waveform - used in automotive power supply protection and industrial sensor interface circuits.
For engineers reviewing the TPSMB30A-1BHE3/5BT datasheet, TPSMB30A-1BHE3/5BT pinout, TPSMB30A-1BHE3/5BT application, or TPSMB30A-1BHE3/5BT equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, TJ = 185 °C junction temperature rating, and clamping performance under repetitive surge conditions.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver stable clamping across -65 °C to +185 °C operating range, with low incremental surge resistance and sub-nanosecond response time. Its design supports high-reliability automotive applications where thermal stability and surge repetition tolerance are critical.
The device operates exclusively in unidirectional mode, with cathode marked by a band on the SMB package. It meets MSL Level 1 per J-STD-020, with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102, and passes JESD 201 Class 2 whisker testing.
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 at which avalanche conduction begins under standardized test conditions |
| VWM | 25.6 V - maximum continuous reverse working voltage before leakage exceeds 1 µA, ensuring no false triggering during normal operation |
| VC @ IPPM | 41.4 V at 14.5 A (10/1000 µs) - clamping voltage seen by protected circuit during worst-case surge, limiting stress on downstream ICs |
| PPPM | 600 W - peak pulse power handling capability determines survivability against transient energy bursts without degradation |
| TJ max. | +185 °C - enables use in under-hood automotive environments and high-temperature industrial enclosures without derating |
| Polarity | Unidirectional - protects only against positive-going transients relative to cathode; requires correct orientation in series with power rail |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 0.220" x 0.130" footprint, compatible with automated placement and reflow |
Pinout & Package
SMB (DO-214AA) package with molded epoxy body, matte tin-plated leads, and cathode identification via color band. Dimensions: 4.57 mm × 3.30 mm × 2.20 mm (L × W × H); mounting pad layout specified per Vishay drawing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line (e.g., VIN); conducts surge current to ground when voltage exceeds VBR |
| Anode | Reference node | Typically tied to system ground or lower-potential rail; completes conduction path during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per JEDEC standard |
| Junction passivation | Reduces surface leakage and improves long-term stability under high-humidity or contaminated environments |
| MSL Level 1 rating | Allows unlimited floor life and reflow up to 260 °C peak without preconditioning - simplifies SMT manufacturing flow |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage overshoot during surge events, reducing risk of latch-up or gate oxide damage in protected MOSFETs/ICs |
| 185 °C TJ capability | Supports operation in engine control units (ECUs), battery management systems (BMS), and other high-ambient-temperature zones |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V/24 V power inputs in engine control modules from load dump and alternator ripple. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between input rail and ground, conducting only during overvoltage events. Use Value: Limits peak rail voltage to ≤41.4 V during 14.5 A surges, preventing damage to microcontrollers and CAN transceivers. |
Use Scenario: Safeguarding analog output lines of pressure/temperature sensors exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional shunt clamp on sensor output trace, activated within <1 ns of overvoltage onset. Use Value: Maintains signal integrity by clamping transients below ADC input absolute maximum ratings while adding <1 pF capacitance. |
| Telecom DC Power Interface | Consumer Device USB Port Surge Suppression |
Use Scenario: Guarding PoE-powered equipment inputs against induced surges from nearby AC wiring or lightning coupling. IC Role / Device Role / Timing Role: Primary-level TVS on 48 V DC input, coordinated with secondary-side protection. Use Value: Absorbs 600 W pulses without failure, enabling compliance with IEC 61000-4-5 Level 3 (1 kV/2 Ω) requirements. |
Use Scenario: Adding robustness to USB-C power delivery paths in portable electronics subjected to human-body-model ESD. IC Role / Device Role / Timing Role: Standoff-rated TVS on VBUS line, rated for 25.6 V continuous operation and 41.4 V clamping. Use Value: Prevents port disablement or PMIC latch-up during ±15 kV contact ESD events per IEC 61000-4-2. |
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 VBR range (28.5–31.5 V), identical SMB package, but not AEC-Q101 qualified; lower TJ max. (150 °C) | Approved for commercial/industrial use only; unsuitable for automotive under-hood deployment | Select SMBJ30A only for cost-sensitive non-automotive designs where AEC-Q101 and 185 °C operation are not required |
| TPSMB30CA | Bi-directional variant with same VBR, VC, and package; adds symmetric clamping for AC-coupled or bidirectional signal lines | Required for differential bus protection (e.g., RS-485, CAN FD) where negative transients must also be suppressed | Choose TPSMB30CA when protecting balanced interfaces or systems subject to reverse-polarity transients |
Compared with SMBJ30A and TPSMB30CA, the TPSMB30A-1BHE3/5BT uniquely combines AEC-Q101 qualification, 185 °C junction rating, and unidirectional clamping - making it optimal for automotive power rail protection where thermal margin and automotive compliance are mandatory.
Availability
TPSMB30A-1BHE3/5BT is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power interfaces, and consumer USB-C PD systems requiring stable component supply and long-term lifecycle support.
Supply support for TPSMB30A-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 diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, thermal performance, and automotive qualification.
The TPSMB30A-1BHE3/5BT belongs to Vishay's PAR® family of high-power surface-mount TVS diodes, engineered specifically for harsh-environment transient suppression in automotive, industrial, and telecom infrastructure applications.
FAQ
What is the exact breakdown voltage range for TPSMB30A-1BHE3/5BT?
The TPSMB30A-1BHE3/5BT has a guaranteed breakdown voltage (VBR) range of 28.5 V to 31.5 V at test current IT = 1 mA, measured per ANSI/IEEE C62.35. This specification is confirmed in Vishay document 88406, revision 23-Jan-2024, and applies directly to the TPSMB30A-1BHE3/5BT as part of the TPSMB30A variant group.
Is TPSMB30A-1BHE3/5BT AEC-Q101 qualified?
Yes, TPSMB30A-1BHE3/5BT is AEC-Q101 qualified. The "HE3" suffix denotes RoHS-compliant and AEC-Q101 qualified construction, as stated in the Vishay datasheet (document 88406). This qualification covers temperature cycling, high-temperature operating life, and mechanical shock testing required for automotive electronics.
What is the maximum clamping voltage of TPSMB30A-1BHE3/5BT under surge conditions?
The TPSMB30A-1BHE3/5BT exhibits a maximum clamping voltage (VC) of 41.4 V at 14.5 A peak pulse current using the 10/1000 µs waveform. This value is measured per standard test conditions and ensures downstream components see limited overvoltage during transient events.
Does TPSMB30A-1BHE3/5BT support bidirectional transient suppression?
No, TPSMB30A-1BHE3/5BT is unidirectional only. It clamps positive transients relative to its cathode terminal and does not protect against negative-going surges. For bidirectional protection, the TPSMB30CA variant must be selected instead.
What package type does TPSMB30A-1BHE3/5BT use, and what are its key mechanical features?
TPSMB30A-1BHE3/5BT uses the SMB (DO-214AA) package: 4.57 mm × 3.30 mm × 2.20 mm body with matte tin-plated leads, UL 94 V-0 molding compound, and cathode indicated by a color band. It meets MSL Level 1 and JESD 201 Class 2 whisker resistance requirements.
TPSMB30A-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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 14.5A
- 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)
TPSMB30A-1BHE3/5BT FAQ
1.How can I place an order for TPSMB30A-1BHE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB30A-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 TPSMB30A-1BHE3/5BT reliable?
The price and inventory of TPSMB30A-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 TPSMB30A-1BHE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB30A-1BHE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB30A-1BHE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB30A-1BHE3/5BT?
TPSMB30A-1BHE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB30A-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 TPSMB30A-1BHE3/5BT?
For technical support, including TPSMB30A-1BHE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB30A-1BHE3/5BT requirements.
6.How does Aetrix verify that TPSMB30A-1BHE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB30A-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 TPSMB30A-1BHE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB30A-1BHE3/5BT?
All TPSMB30A-1BHE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB30A-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 TPSMB30A-1BHE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB30A-1BHE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB30A-1BHE3/5BT Tags
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