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Vishay General Semiconductor - Diodes Division TPSMB30A-1BHE3_A/I
- Part No.:
- TPSMB30A-1BHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB30A-1BHE3_A/I.pdf
- Description:
- TVS DIODE 600W SMB DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPSMB30A-1BHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 30 V breakdown voltage (VBR), 25.6 V stand-off voltage (VWM), 41.4 V clamping voltage at 14.5 A peak pulse current, and 600 W peak pulse power with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics.
For engineers reviewing the TPSMB30A-1BHE3_A/I datasheet, TPSMB30A-1BHE3_A/I pinout, TPSMB30A-1BHE3_A/I application, or TPSMB30A-1BHE3_A/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 185 °C maximum junction temperature, low incremental surge resistance, and compatibility with high-reliability PCB layouts requiring MSL Level 1 reflow.
Technical Context
This TVS diode operates as a clamping-type overvoltage protection device, leveraging passivated anisotropic rectifier technology to deliver fast response time (<1 ns) and stable clamping under repetitive transients. Its unidirectional configuration enables protection of DC-biased signal or power rails without forward conduction during normal operation.
The device is characterized by a positive temperature coefficient of breakdown voltage (αT = 0.088 %/°C), enabling predictable VBR drift across its -65 °C to +185 °C operating range. It meets JESD201 Class 2 whisker resistance and is qualified to AEC-Q101 for automotive use, with RoHS-compliant matte tin-plated terminals solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 28.5 / 30.0 / 31.5 V - ensures reliable triggering above system nominal voltage while avoiding false trips |
| VWM | 25.6 V - maximum continuous reverse voltage before leakage exceeds 1 μA, defining safe operating margin |
| VC @ IPPM | 41.4 V - clamping voltage at 14.5 A peak pulse, limiting downstream component stress during ESD/surge events |
| PPPM | 600 W - peak pulse power handling with 10/1000 µs waveform, supporting robust protection in automotive load-dump scenarios |
| TJ max. | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| Package | SMB (DO-214AA) - standardized surface-mount footprint with 0.220" × 0.130" body and cathode band marking |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMB (DO-214AA), molded epoxy case meeting UL 94 V-0, with matte tin-plated leads and cathode indicated by a color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes clamping path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Passivated anisotropic rectifier technology | Enables stable VBR and low leakage (<1 μA at VWM) across temperature and lifetime |
| 185 °C junction rating | Supports placement near heat-generating components (e.g., power MOSFETs, DC-DC converters) without derating |
| 600 W peak pulse power (10/1000 µs) | Withstands ISO 7637-2 Pulse 5a load-dump surges in 12 V automotive systems |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without pre-baking or special handling |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive applications including engine control units, body electronics, and ADAS sensors |
Applications
| Automotive Engine Control Unit (ECU) Power Input Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Protects 12 V supply rail of engine control modules against load-dump transients up to 40 V and 200 ms duration. IC Role / Device Role / Timing Role: Clamping TVS diode placed between battery input and upstream DC-DC converter input. Use Value: Limits transient voltage to ≤41.4 V, preventing damage to 36 V-rated input capacitors and controller ICs. | Use Scenario: Shields 24 V digital input channels of programmable logic controllers from inductive kickback from solenoid valves. IC Role / Device Role / Timing Role: Unidirectional transient suppressor connected between field input and internal optocoupler input stage. Use Value: Clamps 600 W surges within 1 ns, preserving signal integrity and eliminating false triggering of logic inputs. |
| Telecom Base Station Sensor Interface Protection | Consumer Appliance Motor Drive Board Protection |
Use Scenario: Safeguards analog sensor signal lines (e.g., temperature, pressure) in outdoor telecom cabinets exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at connector entry point before signal conditioning amplifier. Use Value: Maintains <10 pF junction capacitance at 0 V bias, minimizing signal distortion on 10 kHz–1 MHz sensor outputs. | Use Scenario: Guards microcontroller GPIO pins and gate drivers on washing machine motor control boards against commutation spikes. IC Role / Device Role / Timing Role: Standoff-rated TVS on half-bridge gate drive traces and MCU power rails. Use Value: Withstands 75 A non-repetitive forward surge (IFSM), surviving repeated motor startup transients without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30AHE3_A/I | Same SMB package, identical VBR/VC, but lower PPPM = 600 W (same rating) and no AEC-Q101 documentation in public datasheet | Not explicitly qualified for automotive; suitable for industrial/commercial only | Select when AEC-Q101 is not required and cost optimization is prioritized |
| TPSMB30AHM3_A/I | Identical electrical specs and AEC-Q101 qualification; differs only in halogen-free molding compound | Required for RoHS+halogen-free compliance programs (e.g., EU automotive Tier 1 mandates) | Select when halogen-free material compliance is mandatory for final assembly |
Compared with SMBJ30AHE3_A/I and TPSMB30AHM3_A/I, the TPSMB30A-1BHE3_A/I provides verified AEC-Q101 qualification with standard RoHS compliance, making it the default choice for automotive designs where both reliability and regulatory alignment are required without halogen-free overhead.
Availability
TPSMB30A-1BHE3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, telecom base station interfaces, and consumer appliance motor drives requiring stable component supply, long-term lifecycle support, and AEC-Q101 assurance.
Supply support for TPSMB30A-1BHE3_A/I 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 power MOSFETs with emphasis on high-reliability, high-temperature, and automotive-grade performance.
The TPSMB series is designed specifically for surface-mount transient suppression in harsh environments, targeting applications demanding AEC-Q101 qualification, 185 °C operation, and robust 600 W surge handling in compact SMB packages.
FAQ
What is the clamping voltage of the TPSMB30A-1BHE3_A/I at its rated peak pulse current?
The TPSMB30A-1BHE3_A/I has a maximum clamping voltage (VC) of 41.4 V at its specified peak pulse current (IPPM) of 14.5 A, measured using the standard 10/1000 µs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is critical for ensuring downstream components remain within their absolute maximum ratings. The TPSMB30A-1BHE3_A/I maintains this clamping performance across its full operating temperature range.
Is the TPSMB30A-1BHE3_A/I qualified for automotive applications?
Yes, the TPSMB30A-1BHE3_A/I is AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101-qualified variants. This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD, validating the TPSMB30A-1BHE3_A/I for use in engine control units, body electronics, and ADAS subsystems where reliability under thermal and electrical stress is mandatory.
What does the "-1B" in TPSMB30A-1BHE3_A/I signify?
The "-1B" in TPSMB30A-1BHE3_A/I is a revision identifier indicating the specific manufacturing lot or process iteration per Vishay's internal change control system. It reflects minor process enhancements or test methodology updates that do not affect electrical specifications, package dimensions, or qualification status. All TPSMB30A-1BHE3_A/I units retain full compatibility with earlier TPSMB30AHE3_A/I revisions in form, fit, and function.
Can the TPSMB30A-1BHE3_A/I be used in bidirectional protection circuits?
No, the TPSMB30A-1BHE3_A/I is unidirectional only, as explicitly stated in the Vishay datasheet. It protects against positive transients on a DC-biased line referenced to ground and cannot suppress negative-going surges. For bidirectional protection, a separate device such as the TPSMB30CA-1BHE3_A/I (center-tapped, bidirectional variant) or a pair of unidirectional TVS diodes in series-opposed configuration would be required - the TPSMB30A-1BHE3_A/I alone does not provide symmetrical clamping.
What is the maximum printed circuit board pad size recommended for TPSMB30A-1BHE3_A/I thermal performance?
Vishay specifies that the TPSMB30A-1BHE3_A/I achieves its rated 600 W peak pulse power when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads at each terminal, per Figure 2 in the datasheet. Using smaller pads reduces thermal mass and increases junction temperature rise during surge events, potentially derating pulse power capability. The TPSMB30A-1BHE3_A/I's thermal performance is directly tied to this pad layout, and deviation requires recalculating safe operating area using the provided derating curves.
TPSMB30A-1BHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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)
TPSMB30A-1BHE3_A/I FAQ
1.How can I place an order for TPSMB30A-1BHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB30A-1BHE3_A/I 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_A/I reliable?
The price and inventory of TPSMB30A-1BHE3_A/I 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_A/I is usually 5 days.
3.What payment methods are accepted for TPSMB30A-1BHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB30A-1BHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB30A-1BHE3_A/I?
TPSMB30A-1BHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB30A-1BHE3_A/I 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_A/I?
For technical support, including TPSMB30A-1BHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB30A-1BHE3_A/I requirements.
6.How does Aetrix verify that TPSMB30A-1BHE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMB30A-1BHE3_A/I 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_A/I meets industry standards.
7.What is the process for return or replacement of TPSMB30A-1BHE3_A/I?
All TPSMB30A-1BHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB30A-1BHE3_A/I, 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_A/I part is unused and in its original packaging.
Return procedure for TPSMB30A-1BHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB30A-1BHE3_A/I Tags
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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