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Vishay General Semiconductor - Diodes Division TPSMC7.5AHE3/9AT
- Part No.:
- TPSMC7.5AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC7.5AHE3/9AT.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,103
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Product details
Overview
TPSMC7.5AHE3/9AT from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features a 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 - used in automotive power rail protection and industrial sensor interface circuits.
For engineers reviewing the TPSMC7.5AHE3/9AT datasheet, TPSMC7.5AHE3/9AT pinout, TPSMC7.5AHE3/9AT application, or TPSMC7.5AHE3/9AT equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 133 A peak pulse current rating, low clamping ratio (VC/VBR ≈ 1.51), and compatibility with high-reliability PCB assembly per J-STD-020 MSL level 1.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for stable clamping under repetitive surge stress. Its junction design supports operation up to +185 °C and meets AEC-Q101 requirements for automotive under-hood applications.
The device delivers 1500 W peak pulse power with a 10/1000 μs waveform and exhibits low incremental surge resistance, enabling effective suppression of inductive switching spikes and ESD events on DC power rails and analog signal paths without significant voltage overshoot.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.13 / 7.50 / 7.88 V - ensures reliable turn-on before downstream IC damage threshold |
| VWM | 6.40 V - blocks normal operating voltage while allowing margin for ripple and tolerance |
| VC @ IPPM | 11.3 V - clamps transient energy to safe levels for 5 V or 6 V logic and power stages |
| IPPM | 133 A - sustains high-energy surges from relay coil flyback or load dump |
| PPPM | 1500 W - handles standard 10/1000 μs lightning/surge waveforms per IEC 61000-4-5 |
| TJ max. | +185 °C - enables use in engine control units and industrial motor drives without derating |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct orientation |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance reference plane during clamping event |
| Cathode | Transient voltage sensing node | Connected to protected line (e.g., 5 V rail or sensor output); clamps when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Enables stable leakage performance and long-term reliability under thermal cycling and humidity |
| MSL Level 1 | Allows reflow soldering at 260 °C peak without moisture-induced failure |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and body electronics applications |
| Low clamping ratio (VC/VBR) | ≈1.51 - minimizes overvoltage stress on protected ICs during surge events |
| Fast response time | <1 ns - activates before most microsecond-scale transients propagate into sensitive circuitry |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 5 V or 12 V supply lines in engine control modules from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between power input and local regulator. Use Value: Limits voltage excursion to ≤11.3 V during 133 A surges, preventing latch-up or permanent damage to MCU and CAN transceivers. | Use Scenario: Safeguarding analog outputs of pressure or temperature sensors connected to PLC inputs. IC Role / Device Role / Timing Role: Transient shunt on sensor signal line, referenced to system ground. Use Value: Clamps ESD and cable discharge events to <12 V, preserving ADC accuracy and avoiding false triggers in safety-critical loops. |
| Consumer Power Adapter Input | Telecom DC Power Distribution |
Use Scenario: Secondary-side overvoltage protection in USB-C PD adapters and AC/DC wall adapters. IC Role / Device Role / Timing Role: Standoff-clamp TVS on regulated 5 V/9 V/15 V output bus. Use Value: Absorbs 1500 W surges without degradation, maintaining compliance with UL 62368-1 transient immunity requirements. | Use Scenario: Surge protection on -48 V telecom power feeds entering base station equipment. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to negative rail, handling positive transients. Use Value: Withstands repeated 10/1000 μs surges up to 133 A while maintaining VWM = 6.4 V compatibility with upstream DC-DC converters. |
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) | Not AEC-Q101 qualified; limited to consumer/industrial non-automotive use | Select when space-constrained layout and lower surge energy suffice |
| TPSMC7.5AHM3/9AT | Identical electrical specs; halogen-free molding compound, same AEC-Q101 qualification | No functional difference; preferred where halogen-free compliance is mandated | Select when RoHS + halogen-free + AEC-Q101 are all required |
Compared with TPSMC7.5AHE3/9AT, SMAJ7.5A offers reduced surge capacity and no automotive qualification, while TPSMC7.5AHM3/9AT provides identical protection performance with halogen-free construction - making the HE3 variant optimal for cost-sensitive AEC-Q101 designs where halogen content is unrestricted.
Availability
TPSMC7.5AHE3/9AT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface, and telecom DC distribution requiring stable component supply across extended temperature and surge conditions.
Supply support for TPSMC7.5AHE3/9AT 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 reliability and high-temperature performance.
The TPSMC series was developed specifically for high-energy transient suppression in automotive and industrial environments where AEC-Q101 qualification, +185 °C operation, and 1500 W pulse capability are mandatory.
FAQ
What is the breakdown voltage tolerance of TPSMC7.5AHE3/9AT?
The TPSMC7.5AHE3/9AT has a specified breakdown voltage range of 7.13 V (min) to 7.88 V (max) at 10 mA test current, with a nominal value of 7.50 V. This ±5% tolerance ensures consistent clamping behavior across production lots while accommodating thermal drift via its 0.052 %/°C temperature coefficient. The device maintains this specification under AEC-Q101 stress conditions.
Is TPSMC7.5AHE3/9AT suitable for bidirectional transient protection?
No, TPSMC7.5AHE3/9AT is unidirectional only and must be oriented with cathode toward the protected line. It does not suppress negative-going transients. For bidirectional protection, a separate device such as TPSMC7.5CAHE3/9AT (if available) or a back-to-back configuration would be required - but TPSMC7.5AHE3/9AT itself is strictly unidirectional per Vishay's datasheet and marking code DGP.
Does TPSMC7.5AHE3/9AT require derating at elevated ambient temperatures?
Yes, TPSMC7.5AHE3/9AT must be derated above TA = 25 °C per Figure 2 in the datasheet. At 125 °C ambient, its peak pulse power drops to ~65% of rated 1500 W, and at 150 °C, it falls to ~45%. Derating ensures junction temperature remains within the +185 °C absolute maximum, especially under repeated surge conditions.
What is the mounting pad layout recommendation for TPSMC7.5AHE3/9AT?
Vishay specifies 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads at each terminal for thermal and surge current handling. The SMC (DO-214AB) outline requires minimum pad lengths of 3.20 mm and widths of 1.52 mm, with 4.69 mm maximum center-to-center spacing. These dimensions ensure mechanical stability and minimize thermal impedance during 133 A surge events.
How does the clamping voltage of TPSMC7.5AHE3/9AT compare to its breakdown voltage?
TPSMC7.5AHE3/9AT clamps at 11.3 V when subjected to its rated 133 A peak pulse current (10/1000 μs), yielding a clamping ratio (VC/VBR) of approximately 1.51. This tight ratio reflects low dynamic impedance and ensures protected circuits experience minimal overvoltage - critical for safeguarding 5 V logic interfaces and automotive MCUs with 12 V absolute maximum ratings.
TPSMC7.5AHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- 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):
- 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 (SMCJ)
TPSMC7.5AHE3/9AT FAQ
1.How can I place an order for TPSMC7.5AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC7.5AHE3/9AT 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 TPSMC7.5AHE3/9AT reliable?
The price and inventory of TPSMC7.5AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC7.5AHE3/9AT is usually 5 days.
3.What payment methods are accepted for TPSMC7.5AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC7.5AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC7.5AHE3/9AT?
TPSMC7.5AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC7.5AHE3/9AT 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 TPSMC7.5AHE3/9AT?
For technical support, including TPSMC7.5AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC7.5AHE3/9AT requirements.
6.How does Aetrix verify that TPSMC7.5AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All TPSMC7.5AHE3/9AT 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 TPSMC7.5AHE3/9AT meets industry standards.
7.What is the process for return or replacement of TPSMC7.5AHE3/9AT?
All TPSMC7.5AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC7.5AHE3/9AT, 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 TPSMC7.5AHE3/9AT part is unused and in its original packaging.
Return procedure for TPSMC7.5AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC7.5AHE3/9AT Tags
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