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Vishay General Semiconductor - Diodes Division TPSMB30AHM3_A/I
- Part No.:
- TPSMB30AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB30AHM3_A/I.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,122
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Product details
Overview
TPSMB30AHM3_A/I 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), 25.6 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 14.5 A peak pulse current (IPPM), and 41.4 V maximum clamping voltage (VC) - deployed in automotive engine control units, industrial sensor interfaces, and telecom power supplies.
For engineers reviewing the TPSMB30AHM3_A/I datasheet, TPSMB30AHM3_A/I pinout, TPSMB30AHM3_A/I application, or TPSMB30AHM3_A/I equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification, 185 °C junction temperature rating, and verified clamping performance under repetitive 0.01% duty cycle surge conditions.
Technical Context
This TVS diode operates as a voltage-clamping protection device in parallel with sensitive downstream circuitry. Its passivated anisotropic rectifier structure enables fast response (<1 ns), low incremental surge resistance, and stable clamping across -65 °C to +185 °C operating range - critical for under-hood automotive and high-reliability industrial environments.
The device is rated for 75 A non-repetitive forward surge current (8.3 ms half-sine), exhibits only 3.5 V forward voltage at 50 A, and maintains <1 μA reverse leakage at 25.6 V stand-off voltage - ensuring minimal standby power loss while delivering robust overvoltage immunity during transient events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 28.5 V / 30.0 V / 31.5 V - precise breakdown threshold ensures reliable triggering before damage to protected ICs or MOSFETs |
| VWM | 25.6 V - maximum continuous working voltage compatible with 24 V nominal systems with margin |
| VC @ IPPM | 41.4 V - clamping voltage limits stress on downstream components during 14.5 A transient events |
| PPPM | 600 W - peak pulse power handling per 10/1000 µs waveform supports automotive ISO 7637-2 and IEC 61000-4-5 compliance |
| TJ max. | +185 °C - enables operation in high-temperature under-hood locations without derating |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct cathode orientation in PCB layout |
| MSL Level | Level 1 (J-STD-020) - no floor life limitation; safe for standard reflow up to 260 °C peak |
Pinout & Package
Package: SMB (DO-214AA) - surface-mount plastic case with matte tin-plated leads, UL 94 V-0 rated molding compound, and cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode of internal PN junction | Connected to higher-potential rail (e.g., VIN or signal line); clamps when voltage exceeds VBR |
| Anode | Cathode of internal PN junction | Connected to ground or lower-potential reference; completes clamping path during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR drift <0.088 %/°C and long-term reliability under thermal cycling |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including powertrain and body electronics per stress test requirements |
| 600 W peak pulse power (10/1000 µs) | Withstands repeated load-dump and inductive kick transients without degradation |
| Low incremental surge resistance | Minimizes VC overshoot and improves clamping precision during fast-rising transients |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for global automotive and industrial OEMs |
Applications
| Automotive Engine Control Unit (ECU) Power Input Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Protects microcontroller power supply and CAN transceiver inputs from alternator load dump and relay coil flyback in 24 V vehicle systems. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed between battery rail and LDO input, triggered within nanoseconds of overvoltage onset. Use Value: Limits transient voltage to ≤41.4 V, preventing latch-up or gate oxide damage in downstream 3.3 V/5 V logic and analog ICs. | Use Scenario: Shields 24 V digital input channels of programmable logic controllers from field-wiring induced surges and ESD events. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor on each optocoupler input side, absorbing energy before isolation barrier. Use Value: Maintains <1 μA leakage at 25.6 V, avoiding false triggering while clamping 1 kV/500 A surges per IEC 61000-4-5 Level 4. |
| Telecom Power Supply DC-DC Converter Input | Consumer Appliance Motor Driver Board |
Use Scenario: Safeguards primary-side controller ICs and MOSFET gates in AC/DC and DC/DC converters subjected to lightning-induced surges on mains-derived 48 V rails. IC Role / Device Role / Timing Role: Front-end TVS on converter input bus, coordinated with upstream MOV and fuse for staged protection. Use Value: Delivers 600 W pulse handling with 185 °C TJ rating, enabling compact placement near hot-switching nodes without thermal derating. | Use Scenario: Protects H-bridge gate drivers and current-sense amplifiers in washing machine and HVAC motor control boards exposed to brush-commutator noise and inductive spikes. IC Role / Device Role / Timing Role: Unidirectional clamp on low-side shunt resistor supply and driver VDD lines. Use Value: Provides 14.5 A IPPM capability and 41.4 V VC to prevent overvoltage failure during 75 A motor stall surges. |
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, 30 V VBR, but rated for 600 W with 10/1000 µs waveform and not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial use only | Select when AEC-Q101 is not required and cost optimization is prioritized |
| SMCJ30A-Q | Higher 1500 W PPPM, SMC (DO-214AB) package, AEC-Q101 qualified, but larger footprint and 43.5 V VC | Better energy handling but requires PCB redesign; used where higher surge immunity is mandated | Select when system-level surge testing exceeds 600 W requirements or when legacy SMC layout exists |
Compared with SMBJ30AHE3_A/I and SMCJ30A-Q, the TPSMB30AHM3_A/I uniquely balances AEC-Q101 qualification, SMB footprint compatibility, and 41.4 V clamping in a halogen-free construction - making it optimal for space-constrained automotive modules requiring zero-layout-change upgrades from non-qualified variants.
Availability
TPSMB30AHM3_A/I is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interface protection, and telecom DC-DC converter input conditioning requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for TPSMB30AHM3_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 optoelectronics with emphasis on high-reliability, high-temperature, and automotive-grade performance.
The TPSMB series belongs to Vishay's PAR® (Protection Against Transients) family, engineered specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where sustained operation at 185 °C and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum clamping voltage of the TPSMB30AHM3_A/I under peak pulse conditions?
The TPSMB30AHM3_A/I has a maximum clamping voltage (VC) of 41.4 V when subjected to its rated peak pulse current of 14.5 A using the 10/1000 µs waveform. This value is measured per JEDEC standards and guarantees that downstream components experience no more than 41.4 V during transient events - critical for protecting 3.3 V, 5 V, and 24 V logic and power stages. The TPSMB30AHM3_A/I achieves this with low incremental surge resistance and stable junction characteristics.
Is the TPSMB30AHM3_A/I qualified for automotive applications?
Yes, the TPSMB30AHM3_A/I is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's official datasheet (Document Number: 88406). It meets stress test requirements for temperature cycling, humidity bias, and mechanical shock - making it suitable for engine control units, body electronics, and ADAS power domains. The TPSMB30AHM3_A/I also supports halogen-free and RoHS-compliant manufacturing, aligning with Tier 1 automotive supply chain mandates.
What is the operating temperature range of the TPSMB30AHM3_A/I?
The TPSMB30AHM3_A/I operates across a junction temperature range of -65 °C to +185 °C, validated per JEDEC JESD22-A104 and JESD22-A108. This extended range enables deployment in under-hood automotive locations, industrial motor drives, and outdoor telecom equipment without thermal derating. The TPSMB30AHM3_A/I maintains specified VBR, VC, and leakage performance throughout this range, supported by a temperature coefficient of 0.088 %/°C.
Does the TPSMB30AHM3_A/I have unidirectional or bidirectional polarity?
The TPSMB30AHM3_A/I is unidirectional only, as explicitly stated in the Vishay datasheet. Its cathode band marks the terminal connected to the higher-potential side of the circuit, and it clamps only positive-going transients relative to ground. Bidirectional variants (e.g., TPSMB30CA) are separate part numbers. Using the TPSMB30AHM3_A/I in bidirectional applications requires external circuitry or selection of a different device.
What packaging and reel options are available for the TPSMB30AHM3_A/I?
The TPSMB30AHM3_A/I is supplied in 13-inch diameter plastic tape and reel format with a base quantity of 3200 units per reel (ordering code suffix "/I"). It uses the SMB (DO-214AA) package with matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards. The TPSMB30AHM3_A/I is MSL Level 1, allowing unlimited floor life and compatibility with standard lead-free reflow profiles peaking at 260 °C.
TPSMB30AHM3_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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
TPSMB30AHM3_A/I FAQ
1.How can I place an order for TPSMB30AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB30AHM3_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 TPSMB30AHM3_A/I reliable?
The price and inventory of TPSMB30AHM3_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 TPSMB30AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMB30AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB30AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB30AHM3_A/I?
TPSMB30AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB30AHM3_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 TPSMB30AHM3_A/I?
For technical support, including TPSMB30AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB30AHM3_A/I requirements.
6.How does Aetrix verify that TPSMB30AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMB30AHM3_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 TPSMB30AHM3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMB30AHM3_A/I?
All TPSMB30AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB30AHM3_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 TPSMB30AHM3_A/I part is unused and in its original packaging.
Return procedure for TPSMB30AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB30AHM3_A/I Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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