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Vishay General Semiconductor - Diodes Division TPSMB7.5A1BHE3/5BT
- Part No.:
- TPSMB7.5A1BHE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB7.5A1BHE3/5BT.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,402
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Product details
Overview
TPSMB7.5A1BHE3/5BT 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 and signal lines. It features a 7.5 V breakdown voltage (VBR), 6.4 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 11.3 V clamping voltage at 53.1 A, and operates up to +185 °C junction temperature. It is used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the TPSMB7.5A1BHE3/5BT datasheet, TPSMB7.5A1BHE3/5BT pinout, TPSMB7.5A1BHE3/5BT application, or TPSMB7.5A1BHE3/5BT equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, TJ = 185 °C rating, and clamping performance under 10/1000 µs surge conditions.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its 7.5 V nominal breakdown voltage is specified at 10 mA test current, with ±5% tolerance (7.13–7.88 V), and exhibits a positive temperature coefficient of +0.052 %/°C for VBR.
The device delivers 53.1 A peak pulse current (IPPM) at 11.3 V clamping voltage under 10/1000 µs waveform, with 75 A non-repetitive forward surge rating (8.3 ms half-sine). It meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 for automotive use when ordered with HE3 suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.13 / 7.50 / 7.88 V at 10 mA - defines precise clamping onset threshold under standardized test conditions |
| VWM | 6.4 V - maximum continuous reverse voltage before leakage exceeds 250 µA, ensuring reliable blocking in normal operation |
| VC @ IPPM | 11.3 V at 53.1 A - actual clamped voltage during 600 W surge, critical for downstream component overvoltage margin |
| PPPM | 600 W (10/1000 µs) - peak transient energy handling capacity without failure under standard surge waveform |
| TJ max | +185 °C - enables operation in under-hood automotive and high-ambient industrial environments without derating |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct cathode orientation in circuit |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 0.220" x 0.130" footprint and matte tin-plated leads |
Pinout & Package
TPSMB7.5A1BHE3/5BT uses the SMB (DO-214AA) package: a two-terminal, surface-mount plastic case with cathode indicated by a color band. Dimensions are 3.94 mm × 2.20 mm × 1.52 mm (L × W × H), mounted on 5.0 mm × 5.0 mm copper pads per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction or surge clamping | Connected to protected line (e.g., power rail or signal trace); must be routed with low-inductance path to ground reference |
| Cathode | Current exit point during clamping; marked by color band | Connected to system ground or low-impedance return path; determines unidirectional clamping direction |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process ensures stable VBR and low leakage across temperature and life cycle |
| AEC-Q101 qualification | Validated reliability for automotive electronics including engine control, body modules, and ADAS sensors |
| MSL Level 1 rating | Compatible with standard SMT reflow profiles up to 260 °C peak, eliminating moisture sensitivity concerns |
| Low clamping ratio | VC/VBR ≈ 1.51 - tight voltage control minimizes overvoltage stress on protected ICs during surge events |
| High IFSM | 75 A (8.3 ms half-sine) - withstands repetitive motor-commutation or relay-switching surges without degradation |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump and inductive kickback in vehicle power distribution networks. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between power input and ground, activated within <1 ns of overvoltage event. Use Value: Limits transient voltage to ≤11.3 V, preserving 12 V-rated microcontrollers and CAN transceivers during ISO 7637-2 Pulse 1/2a/5a events. | Use Scenario: Shielding analog output lines of pressure or temperature sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) surge clamp on 0–5 V or 4–20 mA signal paths exposed to ESD and field wiring transients. Use Value: Maintains signal integrity with <250 µA leakage at 6.4 V, preventing false triggering while clamping fast-rising surges to safe levels. |
| Consumer Device USB Port ESD Suppression | Telecom Equipment DC Power Input Protection |
Use Scenario: Secondary-level ESD protection on VBUS line of USB-C ports in laptops and docking stations. IC Role / Device Role / Timing Role: Standoff device operating below 5.5 V nominal bus voltage, triggered only during >8 kV contact ESD events per IEC 61000-4-2. Use Value: Clamps to 11.3 V within nanoseconds, preventing latch-up or gate oxide damage in USB power switches and PD controllers. | Use Scenario: Front-end surge suppression on -48 V DC telecom power inputs subjected to lightning-induced surges per GR-1089. IC Role / Device Role / Timing Role: High-energy (600 W) unidirectional clamp on negative supply rail, oriented with cathode to -48 V and anode to ground. Use Value: Absorbs 10/1000 µs surges up to 53.1 A while maintaining thermal stability at +85 °C ambient, supporting NEBS compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5A | Same SMB package, identical VBR (7.13–7.88 V), but rated for 600 W with 10/1000 µs waveform and 53.1 A IPPM; no AEC-Q101 qualification stated in standard version | Not pre-qualified for automotive; suitable for industrial/commercial designs where AEC-Q101 is not mandated | Select SMBJ7.5A if AEC-Q101 is unnecessary and cost optimization is prioritized |
| SMCJ7.5A | Larger SMC (DO-214AB) package, same electrical specs but higher 1500 W PPPM rating; 10.5 V VC at 123 A IPPM | Requires PCB layout change due to larger footprint; used where higher single-pulse energy absorption is required | Select SMCJ7.5A only when surge energy exceeds 600 W and board space allows larger package |
Compared with SMBJ7.5A and SMCJ7.5A, TPSMB7.5A1BHE3/5BT provides AEC-Q101 qualification in the compact SMB outline, enabling drop-in use in automotive PCBs without redesign, while delivering identical clamping performance and thermal robustness up to +185 °C.
Availability
TPSMB7.5A1BHE3/5BT is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface circuits, and telecom DC power input stages requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.
Supply support for TPSMB7.5A1BHE3/5BT 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 is part of Vishay's PAR® transient voltage suppressor family, engineered specifically for robust, high-energy surge protection in harsh environments including automotive under-hood, industrial motor drives, and outdoor telecom infrastructure.
FAQ
What is the breakdown voltage tolerance for TPSMB7.5A1BHE3/5BT?
The TPSMB7.5A1BHE3/5BT has a breakdown voltage (VBR) range of 7.13 V to 7.88 V at 10 mA test current, representing a ±5% tolerance around the nominal 7.5 V value. This specification is confirmed in the Vishay datasheet Document Number 88406, Table "ELECTRICAL CHARACTERISTICS", row for TPSMB7.5A. The tolerance ensures predictable clamping behavior across production lots and temperature ranges.
Is TPSMB7.5A1BHE3/5BT AEC-Q101 qualified?
Yes, TPSMB7.5A1BHE3/5BT is AEC-Q101 qualified. The HE3 suffix in the part number explicitly denotes RoHS-compliant and AEC-Q101 qualified construction, as stated in the "MECHANICAL DATA" section of the Vishay datasheet. This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing, making TPSMB7.5A1BHE3/5BT suitable for automotive electronic control units.
What is the clamping voltage of TPSMB7.5A1BHE3/5BT at its rated peak pulse current?
The clamping voltage (VC) of TPSMB7.5A1BHE3/5BT is 11.3 V at 53.1 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is specified in the "ELECTRICAL CHARACTERISTICS" table of the Vishay datasheet and reflects the maximum voltage seen across the device during a full-power surge event, directly determining the protection level provided to downstream components.
Does TPSMB7.5A1BHE3/5BT have bidirectional capability?
No, TPSMB7.5A1BHE3/5BT is unidirectional only. The datasheet explicitly states "Available in unidirectional polarity only" under FEATURES, and the device marking code KGP and cathode band orientation confirm this configuration. It conducts and clamps only for positive transients relative to its cathode; a separate device or bidirectional variant (e.g., TPSMB7.5CA) would be required for symmetrical surge protection.
What is the maximum operating junction temperature for TPSMB7.5A1BHE3/5BT?
The maximum operating junction temperature (TJ) for TPSMB7.5A1BHE3/5BT is +185 °C, as listed in the "PRIMARY CHARACTERISTICS" and "MAXIMUM RATINGS" sections of the Vishay datasheet. This rating enables reliable operation in high-ambient environments such as automotive engine compartments or industrial enclosures, and supports extended lifetime under thermal stress when properly mounted on adequate copper area.
TPSMB7.5A1BHE3/5BT 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):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 53.1A
- 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)
TPSMB7.5A1BHE3/5BT FAQ
1.How can I place an order for TPSMB7.5A1BHE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB7.5A1BHE3/5BT 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 TPSMB7.5A1BHE3/5BT reliable?
The price and inventory of TPSMB7.5A1BHE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB7.5A1BHE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB7.5A1BHE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB7.5A1BHE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB7.5A1BHE3/5BT?
TPSMB7.5A1BHE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB7.5A1BHE3/5BT 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 TPSMB7.5A1BHE3/5BT?
For technical support, including TPSMB7.5A1BHE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB7.5A1BHE3/5BT requirements.
6.How does Aetrix verify that TPSMB7.5A1BHE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB7.5A1BHE3/5BT 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 TPSMB7.5A1BHE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB7.5A1BHE3/5BT?
All TPSMB7.5A1BHE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB7.5A1BHE3/5BT, 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 TPSMB7.5A1BHE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB7.5A1BHE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB7.5A1BHE3/5BT Tags
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