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Vishay General Semiconductor - Diodes Division TPSMC7.5AHE3_B/H
- Part No.:
- TPSMC7.5AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC7.5AHE3_B/H.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,411
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Product details
Overview
TPSMC7.5AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping inductive switching surges and lightning-induced transients. It features 7.5 V nominal breakdown voltage (VBR), 6.4 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 μs), 11.3 V maximum clamping voltage at 133 A, and operates up to +185 °C junction temperature - deployed on automotive power rails and sensor signal lines.
For engineers reviewing the TPSMC7.5AHE3_B/H datasheet, TPSMC7.5AHE3_B/H pinout, TPSMC7.5AHE3_B/H application, or TPSMC7.5AHE3_B/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, 1000 μA max reverse leakage at VWM, and compatibility with high-reliability automotive PCB layouts requiring robust surge immunity without derating at elevated ambient temperatures.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under repetitive surge stress. Its 185 °C maximum junction temperature enables operation in under-hood automotive environments where thermal derating of competing devices limits usable power handling.
The device exhibits low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of fast-rising transients before downstream ICs or MOSFETs experience overvoltage. Clamping performance is specified per ANSI/IEEE C62.35 with 10/1000 μs waveform compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.13 / 7.50 / 7.88 V - ensures reliable conduction onset above system operating voltage while avoiding false triggering during normal transients. |
| VWM | 6.40 V - defines maximum continuous reverse voltage before leakage exceeds 500 μA, suitable for 5 V–6 V logic and sensor supply rails. |
| VC @ IPPM | 11.3 V - clamps 133 A surge current to safe levels for 3.3 V/5 V interface ICs and gate drivers. |
| PPPM | 1500 W - delivers high-energy surge protection for automotive load-dump and ISO 7637-2 pulse 5a scenarios. |
| TJ max. | +185 °C - supports placement near heat sources (e.g., power converters) without thermal derating penalties. |
| Leakage @ VWM | 500 μA - low enough to avoid loading sensitive analog or low-power sensor circuits. |
| AEC-Q101 qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47. |
Pinout & Package
Package: SMC (DO-214AB), molded case meeting UL 94 V-0 flammability rating; matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to ground or low-side return path; forms clamping loop with cathode when transient exceeds VBR. |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to protected line (e.g., CAN_H, LIN, 12 V rail); conducts surge current to ground when VWM exceeded. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables single-device protection against severe automotive load-dump events without parallel staging. |
| Junction temperature capability up to +185 °C | Eliminates need for thermal derating in engine-control modules and ADAS ECUs operating at >125 °C ambient. |
| AEC-Q101 qualification (HE3 suffix) | Confirms suitability for automotive safety-critical applications including powertrain and body electronics. |
| MSL Level 1 (260 °C reflow peak) | Supports standard lead-free SMT assembly without pre-baking or special handling. |
| Low clamping voltage (11.3 V @ 133 A) | Protects 12 V-rated components such as microcontrollers, transceivers, and power switches during ISO 16750-2 pulses. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load-dump transients on 12 V battery-fed ECUs in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and input filter capacitor to clamp overshoot to ≤11.3 V. Use Value: Prevents damage to LDO regulators and MCU power pins during ISO 16750-2 Pulse 5a (up to 60 V, 400 ms). |
Use Scenario: Protecting analog output lines of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Clamp induced surges from nearby motor contactors or solenoid switching on 4–20 mA or 0–10 V signal paths. Use Value: Maintains signal integrity and prevents ADC saturation or op-amp latch-up during 1 kV/500 A surge events. |
| Automotive CAN Transceiver Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding CAN_H/CAN_L lines in vehicle infotainment head units exposed to ESD and board-level transients. IC Role / Device Role / Timing Role: Bidirectional clamping not required; unidirectional TPSMC7.5AHE3_B/H used on CAN_H to ground to limit positive excursions. Use Value: Limits voltage excursion to 11.3 V during ISO 11898-2 ESD burst tests, preserving transceiver functionality without adding capacitance. |
Use Scenario: Shielding BLDC motor driver gate signals in smart home appliances from back-EMF spikes during commutation. IC Role / Device Role / Timing Role: Placed across high-side gate resistor and source to absorb turn-off voltage spikes before reaching MOSFET gate oxide. Use Value: Reduces risk of gate oxide breakdown in 600 V MOSFETs by clamping spikes to <12 V, extending driver lifetime. |
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 | Lower PPPM (400 W), same VBR range, SMA package (smaller footprint, lower thermal mass) | Limited to low-energy consumer-grade surges; unsuitable for automotive load-dump or industrial 200 A surge events | Select only for space-constrained non-automotive designs where 1500 W capability is unnecessary |
| TPSMC7.5AHE3_T/R | Identical electrical specs and AEC-Q101 qualification; differs only in tape-and-reel packaging (3500 pcs vs. 850 pcs) | No functional difference; identical use cases and layout requirements | Choose based on production volume and assembly line reel size requirements |
Compared with SMAJ7.5A, TPSMC7.5AHE3_B/H provides 275 % higher surge energy handling and automotive qualification; compared with TPSMC7.5AHE3_T/R, it offers identical protection performance but optimized for smaller batch assembly with 7″ reels.
Availability
TPSMC7.5AHE3_B/H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and CAN transceiver protection requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for TPSMC7.5AHE3_B/H 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, and optoelectronics for automotive, industrial, and computing markets.
The TPSMC7.5AHE3_B/H belongs to Vishay's PAR® series of high-power TVS diodes, engineered specifically for harsh-environment surge suppression where thermal stability, AEC-Q101 compliance, and consistent clamping performance are mandatory.
FAQ
What is the maximum clamping voltage of the TPSMC7.5AHE3_B/H at its rated peak pulse current?
The TPSMC7.5AHE3_B/H has a maximum clamping voltage (VC) of 11.3 V at its rated peak pulse current (IPPM) of 133 A, measured using the standardized 10/1000 μs waveform. This value ensures that downstream components connected to the protected line-such as 12 V-rated MCUs or CAN transceivers-remain within safe operating voltage limits during surge events. The TPSMC7.5AHE3_B/H achieves this clamping performance while maintaining low dynamic impedance under surge conditions.
Is the TPSMC7.5AHE3_B/H qualified for automotive applications?
Yes, the TPSMC7.5AHE3_B/H is AEC-Q101 qualified, as confirmed by Vishay's documentation and indicated by the "HE3" suffix in its part number. This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD, making the TPSMC7.5AHE3_B/H suitable for automotive powertrain, body control, and ADAS systems. Its +185 °C maximum junction temperature further supports under-hood deployment where thermal margins are critical.
What does the "B/H" suffix in TPSMC7.5AHE3_B/H signify?
The "B/H" suffix in TPSMC7.5AHE3_B/H denotes the revision code ("B") and preferred package code ("H"), indicating delivery in 7″ diameter plastic tape and reel with a base quantity of 850 pieces. The "H" code corresponds to Vishay's standard SMC packaging configuration compliant with JEDEC standards, and the "B" revision reflects the latest manufacturing iteration with verified electrical and mechanical consistency per Document Number 88407.
Can the TPSMC7.5AHE3_B/H be used in bidirectional transient protection circuits?
No, the TPSMC7.5AHE3_B/H is unidirectional only, as explicitly stated in the Vishay datasheet. It conducts in reverse bias above VBR and blocks forward current up to 3.5 V at 100 A. For bidirectional protection (e.g., AC lines or differential buses), a separate symmetric TVS array or a dedicated bidirectional device such as the SMBJ7.5CA must be used. Using TPSMC7.5AHE3_B/H in bidirectional configurations risks failure during negative-going transients.
What is the reverse leakage current specification for the TPSMC7.5AHE3_B/H at its stand-off voltage?
At its stand-off voltage (VWM) of 6.40 V and ambient temperature of 25 °C, the TPSMC7.5AHE3_B/H exhibits a maximum reverse leakage current (IR) of 500 μA. At elevated junction temperature (150 °C), leakage increases to 5000 μA - still within acceptable limits for most automotive and industrial sensor interfaces. This low leakage ensures minimal impact on precision analog circuits or battery-powered nodes where quiescent current matters.
TPSMC7.5AHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 133A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMC)
TPSMC7.5AHE3_B/H FAQ
1.How can I place an order for TPSMC7.5AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC7.5AHE3_B/H 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 TPSMC7.5AHE3_B/H reliable?
The price and inventory of TPSMC7.5AHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC7.5AHE3_B/H is usually 5 days.
3.What payment methods are accepted for TPSMC7.5AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC7.5AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC7.5AHE3_B/H?
TPSMC7.5AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC7.5AHE3_B/H 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 TPSMC7.5AHE3_B/H?
For technical support, including TPSMC7.5AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC7.5AHE3_B/H requirements.
6.How does Aetrix verify that TPSMC7.5AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All TPSMC7.5AHE3_B/H 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 TPSMC7.5AHE3_B/H meets industry standards.
7.What is the process for return or replacement of TPSMC7.5AHE3_B/H?
All TPSMC7.5AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC7.5AHE3_B/H, 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 TPSMC7.5AHE3_B/H part is unused and in its original packaging.
Return procedure for TPSMC7.5AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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