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Vishay General Semiconductor - Diodes Division TPSMB30AHE3/5BT
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- Part No.:
- TPSMB30AHE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB30AHE3/5BT.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,648
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Product details
Overview
TPSMB30AHE3/5BT from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) 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 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 with 10/1000 µs waveform - used in automotive power supply protection and industrial sensor interface circuits.
For engineers reviewing the TPSMB30AHE3/5BT datasheet, TPSMB30AHE3/5BT pinout, TPSMB30AHE3/5BT application, or TPSMB30AHE3/5BT equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C junction temperature rating, SMB (DO-214AA) package compatibility, and verified clamping performance under repetitive surge conditions per IEC 61000-4-5.
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 unidirectional polarity and cathode-band marking align with standard SMB PCB layout conventions for reverse-biased overvoltage protection.
The device is rated for 75 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), 3.5 V max forward voltage at 50 A, and meets J-STD-020 MSL Level 1 with 260 °C reflow peak - confirming suitability for high-reliability automated assembly in automotive ECUs and industrial controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 28.5 / 30.0 / 31.5 V at 1 mA - defines precise voltage threshold where avalanche conduction begins under transient stress |
| 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 limiting downstream IC stress during worst-case surge events |
| PPPM | 600 W - peak pulse power handling capacity, enabling robust protection against IEC 61000-4-5 Level 4 surges |
| TJ max | +185 °C - extended junction temperature capability supporting under-hood automotive and high-ambient industrial environments |
| Polarity & Package | Unidirectional, SMB (DO-214AA) - standardized surface-mount footprint with cathode band for correct orientation during placement |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, 0.220" × 0.130" outline, 0.096 g unit weight. Cathode identified by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to system ground or low-impedance reference plane to complete clamping loop during overvoltage events |
| Cathode | Protected line connection | Connected to the rail or signal line requiring protection; reverse-biased during normal operation, avalanches during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process ensures stable VBR drift < ±5 % over 1000 hrs at 150 °C |
| Clamping ratio (VC/VWM) | 1.62 - low ratio enables tighter margin between operating voltage and clamping level for 24 V systems |
| Response time | < 1 ns - fast enough to protect MOSFET gates and microcontroller I/O pins from ESD and fast transients |
| Solderability & reliability | Meets J-STD-002 (solderability) and JESD 22-B102 (leaded solder wetting); JESD 201 Class 2 whisker resistance |
| Environmental compliance | RoHS-compliant, halogen-free (HM3 suffix variant), MSL Level 1 - supports lead-free reflow and long-term supply continuity |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamp |
|---|---|
|
Use Scenario: Protecting 24 V battery-fed control modules (e.g., body control units) from load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 33 V while remaining inactive below 25.6 V. Use Value: Limits peak voltage to 41.4 V during 14.5 A transients, preventing damage to 36 V-rated DC-DC converters and CAN transceivers. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) of pressure/temperature sensors from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between signal line and ground, leveraging fast response to suppress sub-100 ns transients without distorting 1 kHz bandwidth signals. Use Value: Maintains signal integrity with < 100 pF junction capacitance at 0 V bias, while clamping 8 kV contact ESD per IEC 61000-4-2 to safe levels. |
| Telecom DC Power Input Stage | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Safeguarding PoE-powered equipment (e.g., IP cameras) from induced surges on 48 V DC input derived from Ethernet cables. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input rail upstream of DC-DC regulation, sized for 600 W single-event energy absorption. Use Value: Withstands repeated 10/1000 µs surges up to 600 W at 0.01 % duty cycle, meeting Telcordia GR-1089-CORE Level 3 requirements. |
Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role / Timing Role: Mounted across motor terminals to shunt inductive kickback energy into ground, preventing MOSFET drain-source breakdown. Use Value: Handles 75 A 8.3 ms surge current (IFSM) and clamps transients to ≤41.4 V, protecting 60 V-rated motor driver ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A | Same SMB package, 30 V VBR, but rated for 600 W with 10/1000 µs waveform and 15.2 A IPPM; no AEC-Q101 qualification stated in standard datasheet | Lacks automotive qualification; suitable for commercial/industrial use only where AEC-Q101 is not mandated | Select SMBJ30A when cost sensitivity outweighs automotive compliance requirements and thermal derating margins allow |
| SMCJ30A | Larger SMC (DO-214AB) package, same 30 V VBR, higher 1500 W PPPM, 38.3 A IPPM, but 1.5× footprint area and 0.25 g weight | Used where higher surge energy handling is needed, but board space and weight constraints permit larger package | Choose SMCJ30A only if system-level surge testing requires >600 W capability and PCB layout accommodates 277 mil × 189 mil pad pattern |
Compared with SMBJ30A and SMCJ30A, the TPSMB30AHE3/5BT delivers identical electrical clamping performance in a compact SMB footprint while providing certified AEC-Q101 reliability - making it the preferred choice for space-constrained automotive modules where qualification traceability and high-temperature stability are mandatory.
Availability
TPSMB30AHE3/5BT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power inputs requiring stable component supply with full AEC-Q101 documentation and RoHS/halogen-free compliance.
Supply support for TPSMB30AHE3/5BT 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 solutions.
The TPSMB series belongs to Vishay's PAR® (Protection Against Transients) family, engineered specifically for robust, low-leakage transient suppression in harsh environments - targeting automotive, industrial, and telecom applications demanding AEC-Q101 validation and 185 °C operation.
FAQ
What is the exact breakdown voltage range for TPSMB30AHE3/5BT?
The TPSMB30AHE3/5BT has a guaranteed breakdown voltage (VBR) range of 28.5 V to 31.5 V at 1 mA test current, measured per ANSI/IEEE C62.35. This range ensures consistent avalanche initiation across production lots and temperature extremes, critical for predictable clamping behavior in safety-critical automotive designs.
Is TPSMB30AHE3/5BT qualified to AEC-Q101?
Yes, TPSMB30AHE3/5BT is AEC-Q101 qualified - confirmed by Vishay's ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101 qualified variants. Qualification includes stress tests for temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 Rev D, supporting deployment in automotive powertrain and body electronics.
What is the maximum clamping voltage of TPSMB30AHE3/5BT under surge conditions?
The TPSMB30AHE3/5BT clamps to a maximum of 41.4 V when subjected to a 14.5 A peak pulse current with a 10/1000 µs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
Does TPSMB30AHE3/5BT have a unidirectional or bidirectional configuration?
TPSMB30AHE3/5BT is unidirectional only, as explicitly stated in the Vishay datasheet. Its cathode band marking and electrical characteristics (e.g., forward voltage of 3.5 V at 50 A) confirm asymmetric conduction - intended for reverse-biased protection of positive rails relative to ground.
What is the package type and mounting compatibility of TPSMB30AHE3/5BT?
TPSMB30AHE3/5BT uses the SMB (DO-214AA) surface-mount package with 0.220" × 0.130" outline and matte tin-plated leads. It is compatible with standard reflow profiles (MSL Level 1, peak 260 °C), and its pad layout matches IPC-7351B SMB footprint - enabling drop-in replacement in existing SMB-based PCB designs.
TPSMB30AHE3/5BT 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 (SMBJ)
TPSMB30AHE3/5BT FAQ
1.How can I place an order for TPSMB30AHE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB30AHE3/5BT 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 TPSMB30AHE3/5BT reliable?
The price and inventory of TPSMB30AHE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB30AHE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB30AHE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB30AHE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB30AHE3/5BT?
TPSMB30AHE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB30AHE3/5BT 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 TPSMB30AHE3/5BT?
For technical support, including TPSMB30AHE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB30AHE3/5BT requirements.
6.How does Aetrix verify that TPSMB30AHE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB30AHE3/5BT 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 TPSMB30AHE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB30AHE3/5BT?
All TPSMB30AHE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB30AHE3/5BT, 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 TPSMB30AHE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB30AHE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB30AHE3/5BT Tags
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