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Vishay General Semiconductor - Diodes Division TPSMB30HE3/5BT
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- Part No.:
- TPSMB30HE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB30HE3/5BT.pdf
- Description:
- TVS DIODE 24.3VWM 43.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,949
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Product details
Overview
TPSMB30HE3/5BT from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive 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, 600 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - deployed in automotive power supply protection and industrial sensor interface circuits.
For engineers reviewing the TPSMB30HE3/5BT datasheet, TPSMB30HE3/5BT pinout, TPSMB30HE3/5BT application, or TPSMB30HE3/5BT equivalent, this page delivers verified electrical parameters, SMB (DO-214AA) package details, AEC-Q101 qualification status, thermal derating curves, and direct alternative part comparisons - all grounded in Vishay Document #88406 (Rev. 23-Jan-2024).
Technical Context
The TPSMB30HE3/5BT uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and excellent clamping linearity under repetitive 10/1000 µs transients. Its unidirectional polarity and cathode-band marking align with standard SMB layout conventions for reverse-biased protection placement across DC rails.
Rated for TJ = –65 °C to +185 °C and qualified to AEC-Q101, it supports high-reliability automotive applications where thermal stability and solder-reflow robustness (MSL Level 1, 260 °C peak) are mandatory. The 0.088 %/°C temperature coefficient of VBR enables predictable voltage drift over temperature in engine control units and ADAS power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 28.5 V / 30.0 V / 31.5 V at 1 mA - defines precise clamping onset threshold for overvoltage detection |
| VWM | 25.6 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 41.4 V at 14.5 A - limits downstream IC stress during 600 W transient events |
| PPPM | 600 W (10/1000 µs waveform) - sustains high-energy surges without thermal runaway |
| TJ max | +185 °C - enables operation in under-hood automotive environments and industrial motor drives |
| Package | SMB (DO-214AA) - industry-standard 2-pin SMD footprint with 5.0 mm × 5.0 mm copper pad requirement |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
TPSMB30HE3/5BT is housed in an SMB (DO-214AA) surface-mount package with molded epoxy body, matte tin-plated leads, and cathode identification via a color band. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal per Vishay's thermal derating guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-impedance return path; completes clamping loop during transient |
| Cathode | High-side connection point | Connected to protected line (e.g., 24 V rail); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Handles high-energy load-dump and ISO 7637-2 Pulse 5a transients without degradation |
| TJ = 185 °C capability | Supports under-hood placement in automotive ECUs without external heatsinking |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without popcorn or delamination risk |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive production use including HTGB, TC, and HTRB stress testing |
| 0.088 %/°C VBR tempco | Enables stable clamping threshold across –40 °C to +150 °C ambient ranges |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 24 V supply inputs in engine control modules against ISO 7637-2 load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and input filter capacitor. Use Value: Limits voltage to ≤41.4 V during 14.5 A surges, preventing damage to downstream PMICs and microcontrollers. |
Use Scenario: Safeguarding analog outputs of pressure sensors in factory automation systems exposed to relay coil flyback. IC Role / Device Role / Timing Role: Low-capacitance TVS shunting transient energy from 0–5 V signal lines to ground. Use Value: Clamps sub-µs spikes within 1 ns response time while maintaining <1 µA leakage at 25.6 V operating voltage. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Surge Suppression |
Use Scenario: Guarding 48 V PoE-powered equipment inputs against lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary-level TVS on DC input stage upstream of DC/DC converter. Use Value: Absorbs 600 W pulses with <10% VC variation across temperature, ensuring consistent protection margin. |
Use Scenario: Suppressing commutation spikes in BLDC motor inverters inside smart home appliances. IC Role / Device Role / Timing Role: Parallel-mounted TVS across MOSFET drain-source terminals. Use Value: Withstands repetitive 75 A IFSM surges and maintains stable VBR up to +185 °C junction temperature. |
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 no AEC-Q101 qualification | Lacks automotive qualification; suitable for industrial/commercial only | Select SMBJ30A when AEC-Q101 is not required and cost sensitivity outweighs qualification needs |
| TPSMB30AHM3/5BT | Identical electrical specs and AEC-Q101 qualification, but halogen-free molding compound and JESD201 Class 2 whisker resistance | Required for RoHS+halogen-free compliance programs (e.g., EU automotive Tier 1s) | Choose TPSMB30AHM3/5BT when halogen-free material compliance and enhanced whisker resistance are mandated |
Compared with TPSMB30HE3/5BT, SMBJ30A offers identical clamping performance at lower qualification cost, while TPSMB30AHM3/5BT adds halogen-free construction and whisker resistance - both share the same SMB footprint and thermal profile but differ in compliance scope and reliability validation level.
Availability
TPSMB30HE3/5BT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for TPSMB30HE3/5BT 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 was engineered specifically for robust transient suppression in harsh-environment applications - delivering stable clamping, AEC-Q101 qualification, and extended temperature operation up to +185 °C junction.
FAQ
What is the maximum clamping voltage of the TPSMB30HE3/5BT at its rated peak pulse current?
The TPSMB30HE3/5BT has a maximum clamping voltage (VC) of 41.4 V at its rated peak pulse current (IPPM) of 14.5 A using the 10/1000 µs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for downstream components. The TPSMB30HE3/5BT maintains this clamping performance across its full operating temperature range.
Is the TPSMB30HE3/5BT qualified for automotive applications?
Yes, the TPSMB30HE3/5BT is AEC-Q101 qualified, as confirmed by Vishay Document #88406. Its HE3 suffix denotes RoHS-compliant and AEC-Q101-qualified construction, including validation for high-temperature storage, temperature cycling, and highly accelerated life testing. The TPSMB30HE3/5BT meets requirements for under-hood and powertrain applications where reliability at TJ = +185 °C is critical.
What package type does the TPSMB30HE3/5BT use, and what are its key mechanical constraints?
The TPSMB30HE3/5BT uses the SMB (DO-214AA) surface-mount package, with dimensions of 4.57 mm × 3.94 mm × 2.20 mm and cathode identification via a color band. Per Vishay's thermal guidelines, it must be mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads at each terminal to sustain its 600 W peak pulse rating. The TPSMB30HE3/5BT is MSL Level 1 compliant with 260 °C peak reflow tolerance.
How does the temperature coefficient affect the breakdown voltage of the TPSMB30HE3/5BT?
The TPSMB30HE3/5BT has a typical temperature coefficient (αT) of +0.088 %/°C for VBR. This means its breakdown voltage increases by approximately 0.0264 V per °C rise above 25 °C - e.g., at +125 °C, VBR rises by ~8.8 V from nominal. This linear drift is accounted for in automotive designs using the formula VBR at TJ = VBR at 25 °C × (1 + αT × (TJ − 25)). The TPSMB30HE3/5BT's stable tempco ensures predictable clamping across wide ambient ranges.
What is the difference between TPSMB30HE3/5BT and TPSMB30AHM3/5BT?
The TPSMB30HE3/5BT and TPSMB30AHM3/5BT share identical electrical specifications, AEC-Q101 qualification, and SMB packaging. The HM3 suffix indicates halogen-free molding compound and compliance with JESD201 Class 2 whisker resistance - required for certain automotive Tier 1 programs. The TPSMB30HE3/5BT uses standard RoHS-compliant epoxy. Both parts are interchangeable electrically, but material compliance differs.
TPSMB30HE3/5BT 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 (SMBJ)
TPSMB30HE3/5BT FAQ
1.How can I place an order for TPSMB30HE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB30HE3/5BT 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 TPSMB30HE3/5BT reliable?
The price and inventory of TPSMB30HE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB30HE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB30HE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB30HE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB30HE3/5BT?
TPSMB30HE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB30HE3/5BT 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 TPSMB30HE3/5BT?
For technical support, including TPSMB30HE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB30HE3/5BT requirements.
6.How does Aetrix verify that TPSMB30HE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB30HE3/5BT 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 TPSMB30HE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB30HE3/5BT?
All TPSMB30HE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB30HE3/5BT, 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 TPSMB30HE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB30HE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB30HE3/5BT Tags
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