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Vishay General Semiconductor - Diodes Division TPSMB7.5AHE3/5BT
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- Part No.:
- TPSMB7.5AHE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB7.5AHE3/5BT.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,811
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Product details
Overview
TPSMB7.5AHE3/5BT 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 7.5 V nominal breakdown voltage (VBR), 6.4 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 11.3 V maximum clamping voltage at 53.1 A, and operates up to +185 °C junction temperature - deployed in automotive power supply protection and industrial sensor interface circuits.
For engineers reviewing the TPSMB7.5AHE3/5BT datasheet, TPSMB7.5AHE3/5BT pinout, TPSMB7.5AHE3/5BT application, or TPSMB7.5AHE3/5BT 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 aligned with Vishay Document #88406 (Rev. 23-Jan-2024).
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and excellent clamping response under repetitive 10/1000 µs transients. Its unidirectional polarity and cathode-band marking enable straightforward integration into DC-biased protection paths without reverse conduction concerns.
Rated for TJ = 185 °C operation and qualified to AEC-Q101, the TPSMB7.5AHE3/5BT supports high-reliability automotive applications where thermal stability and surge robustness are critical. It meets MSL Level 1 per J-STD-020 and withstands 260 °C lead-free reflow peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.13 / 7.50 / 7.88 V at 10 mA - defines precise voltage threshold at which clamping initiates under controlled test conditions |
| VWM | 6.4 V - maximum continuous reverse working voltage before leakage exceeds 250 µA; sets safe operating margin below breakdown |
| VC @ IPPM | 11.3 V at 53.1 A - clamped voltage during 600 W transient, determining protected circuit's worst-case overvoltage exposure |
| PPPM | 600 W (10/1000 µs waveform) - peak surge energy handling capacity under standardized lightning/inductive-spike test condition |
| IFSM | 75 A (8.3 ms half-sine) - single-event forward surge current rating, critical for input-stage fuse coordination and layout robustness |
| TJ max. | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures without thermal derating penalties |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 0.220" x 0.130" footprint, optimized for thermal dissipation on 5 mm × 5 mm copper pads |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, cathode indicated by color band. Dimensions: 3.94 mm × 2.20 mm × 1.52 mm (L × W × H); mounting pad layout per Vishay spec sheet.
| 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; requires low-inductance path to GND plane |
| Anode | Reference/return node | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - required for engine control, ADAS, and body electronics |
| 185 °C junction rating | Enables uninterrupted operation in high-ambient environments (e.g., near power converters or motor drivers) without derating up to full temperature range |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3 surges when properly laid out with minimal trace inductance |
| Low clamping ratio (VC/VBR ≈ 1.51) | Minimizes overvoltage stress on downstream ICs (e.g., MCUs, CAN transceivers) during fast transients - critical for 3.3 V/5 V logic protection |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard SMT reflow without baking; compatible with automated assembly lines using lead-free profiles up to 260 °C |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients in passenger vehicles and commercial trucks. IC Role / Device Role / Timing Role: Primary clamping device placed at power entry point upstream of LDOs and microcontrollers. Use Value: Limits voltage excursion to ≤11.3 V during 53.1 A surges, preventing latch-up or permanent damage to 16 V-rated downstream regulators. |
Use Scenario: Safeguarding analog front-ends of pressure, temperature, and position sensors exposed to ESD and cable discharge events in factory automation systems. IC Role / Device Role / Timing Role: Signal-line TVS mounted directly at connector interface to shunt transients before reaching precision ADC inputs. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) to <12 V within <1 ns, preserving sensor accuracy and avoiding false readings or resets. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Line Protection |
|
Use Scenario: Secondary-side overvoltage suppression in USB-C PD adapters and multi-output wall chargers subjected to output short-circuit recovery spikes. IC Role / Device Role / Timing Role: Fast-response clamp across regulated 5 V/9 V/15 V outputs to absorb flyback energy from transformer leakage inductance. Use Value: Withstands 600 W pulses without degradation, maintaining regulation integrity during repeated fault-clearing cycles across 10,000+ unit lifetimes. |
Use Scenario: DC power feed protection for remote radio units (RRUs) and small cells powered via 48 V PoE-like infrastructure with long cable runs. IC Role / Device Role / Timing Role: Bidirectional-capable protection (via unidirectional placement with proper grounding) against induced surges from nearby lightning strikes. Use Value: Survives 10/1000 µs surges up to 53.1 A while holding clamped voltage below 12 V - ensuring uninterrupted operation of sensitive RF amplifiers and timing modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A | Same VBR (7.0–7.8 V), lower PPPM = 400 W, SMA package (smaller thermal mass), no AEC-Q101 qualification | Not suitable for automotive under-hood use; limited to consumer/industrial PCBs with lower surge severity requirements | Select SMAJ7.5A only if space-constrained layouts and non-automotive qualification suffice; verify thermal margin with 400 W limit. |
| TPSMB7.5AHM3/5BT | Identical electrical specs and AEC-Q101 qualification; halogen-free molding compound and whisker-resistant plating per JESD 201 Class 2 | Required for RoHS-compliant, halogen-free BOMs in EU automotive programs and green manufacturing initiatives | Choose TPSMB7.5AHM3/5BT when halogen-free compliance and enhanced whisker resistance are mandatory - same footprint and performance. |
Compared with SMAJ7.5A and TPSMB7.5AHM3/5BT, the TPSMB7.5AHE3/5BT offers the highest surge robustness (600 W) in its family and full AEC-Q101 validation, making it the preferred choice for mission-critical automotive and industrial power rail protection where thermal endurance and reliability are non-negotiable.
Availability
TPSMB7.5AHE3/5BT is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interface design, and telecom DC feeder protection requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for TPSMB7.5AHE3/5BT 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial, automotive, and computing applications.
The TPSMB series belongs to Vishay's PAR® (Protected Anisotropic Rectifier) transient voltage suppressor product line, engineered specifically for high-energy surge immunity in harsh environments - emphasizing thermal stability, repeatable clamping, and automotive-grade qualification.
FAQ
What is the breakdown voltage tolerance of the TPSMB7.5AHE3/5BT?
The TPSMB7.5AHE3/5BT has a guaranteed breakdown voltage range of 7.13 V (min) to 7.88 V (max) at 10 mA test current, with 7.50 V as the nominal value. This ±5% tolerance ensures predictable clamping onset across production lots and temperature extremes, supporting robust design margins in automotive and industrial systems where precise overvoltage thresholds are critical. The TPSMB7.5AHE3/5BT maintains this specification across its full -65 °C to +185 °C operating junction range.
Is the TPSMB7.5AHE3/5BT qualified for automotive applications?
Yes, the TPSMB7.5AHE3/5BT is AEC-Q101 qualified, meeting rigorous stress tests for automotive-grade reliability including temperature cycling, high-temperature reverse bias, and mechanical shock. Its 185 °C maximum junction temperature and MSL Level 1 rating further validate suitability for under-hood and powertrain applications. The TPSMB7.5AHE3/5BT is explicitly designated for automotive use in Vishay's ordering nomenclature (HE3 suffix) and referenced in Document #88406 as AEC-Q101 compliant.
What is the maximum clamping voltage of the TPSMB7.5AHE3/5BT during a surge event?
The TPSMB7.5AHE3/5BT exhibits a maximum clamping voltage (VC) of 11.3 V at its rated peak pulse current of 53.1 A (10/1000 µs waveform). This value represents the worst-case voltage seen by protected circuitry during a full 600 W transient event. The low clamping ratio (VC/VBR ≈ 1.51) ensures effective protection of 3.3 V and 5 V logic devices without overstressing their absolute maximum ratings. The TPSMB7.5AHE3/5BT achieves this performance via optimized junction passivation and low dynamic impedance.
Does the TPSMB7.5AHE3/5BT have unidirectional or bidirectional polarity?
The TPSMB7.5AHE3/5BT is a unidirectional TVS diode, meaning it clamps only in reverse bias and conducts forward current like a standard rectifier. Polarity is marked by a cathode band on the SMB package, and the device must be oriented with cathode toward the protected line and anode to ground. It is not rated for bidirectional operation; using it in AC or dual-polarity circuits requires external configuration (e.g., back-to-back pairing). All specifications in the Vishay datasheet apply exclusively to unidirectional operation.
What package type does the TPSMB7.5AHE3/5BT use, and what are its key mechanical features?
The TPSMB7.5AHE3/5BT uses the SMB (DO-214AA) surface-mount package: 3.94 mm × 2.20 mm × 1.52 mm with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Its molding compound meets UL 94 V-0 flammability standards, and it achieves MSL Level 1 per J-STD-020 - allowing unlimited floor life and compatibility with 260 °C lead-free reflow. The cathode band provides clear polarity identification, and thermal performance is optimized for mounting on 5.0 mm × 5.0 mm copper pads per Vishay's recommended layout.
TPSMB7.5AHE3/5BT 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 (SMBJ)
TPSMB7.5AHE3/5BT FAQ
1.How can I place an order for TPSMB7.5AHE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB7.5AHE3/5BT 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 TPSMB7.5AHE3/5BT reliable?
The price and inventory of TPSMB7.5AHE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB7.5AHE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB7.5AHE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB7.5AHE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB7.5AHE3/5BT?
TPSMB7.5AHE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB7.5AHE3/5BT 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 TPSMB7.5AHE3/5BT?
For technical support, including TPSMB7.5AHE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB7.5AHE3/5BT requirements.
6.How does Aetrix verify that TPSMB7.5AHE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB7.5AHE3/5BT 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 TPSMB7.5AHE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB7.5AHE3/5BT?
All TPSMB7.5AHE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB7.5AHE3/5BT, 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 TPSMB7.5AHE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB7.5AHE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB7.5AHE3/5BT Tags
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