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Vishay General Semiconductor - Diodes Division TPSMA7.5AHE3_B/I
- Part No.:
- TPSMA7.5AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA7.5AHE3_B/I.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,702
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Product details
Overview
TPSMA7.5AHE3_B/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) 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), 400 W peak pulse power (10/1000 µs), 35.4 V maximum clamping voltage at 11.3 A IPPM, and operates up to +185 °C junction temperature.
For engineers reviewing the TPSMA7.5AHE3_B/I datasheet, TPSMA7.5AHE3_B/I pinout, TPSMA7.5AHE3_B/I application, or TPSMA7.5AHE3_B/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 1.0 W steady-state power dissipation, low incremental surge resistance, and compatibility with high-reliability automotive and industrial PCB layouts using standard SMA pad footprints.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping performance under repetitive surge conditions. Its 10/1000 µs waveform rating of 400 W and 11.3 A peak pulse current (IPPM) are validated with 0.2" × 0.2" copper pads per terminal, and it maintains reliable operation across -65 °C to +185 °C junction temperature range.
The device exhibits excellent response time and low dynamic impedance, enabling fast suppression of ESD and lightning-induced transients. Its 0.052 %/°C temperature coefficient of VBR ensures predictable voltage shift over temperature, and its MSL Level 1 rating supports lead-free reflow up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.13 / 7.50 / 7.88 V - defines precise clamping onset threshold at 10 mA test current |
| VWM | 6.40 V - maximum continuous reverse voltage before leakage exceeds 150 µA |
| VC @ IPPM | 35.4 V at 11.3 A - peak clamped voltage during 400 W transient, limiting stress on downstream ICs |
| PPPM | 400 W - surge energy handling capability with 10/1000 µs waveform, 0.01 % duty cycle |
| TJ max. | +185 °C - enables use in under-hood automotive and high-temperature industrial environments |
| Polarity | Unidirectional - protects against positive-going transients only; cathode band marks polarity |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 5.0 mm × 5.0 mm thermal pad footprint |
Pinout & Package
TPSMA7.5AHE3_B/I is housed in an SMA (DO-214AC) package with two terminals: anode and cathode. The cathode is marked by a color band on the body. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for rated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode | Transient voltage clamp output node | Connected to protected line; conducts during overvoltage to shunt current to ground |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier structure improves long-term reliability under thermal cycling and humidity |
| AEC-Q101 qualification | Validated for automotive-grade deployment including engine control, infotainment, and ADAS subsystems |
| Low incremental surge resistance | Enables tighter clamping window and reduced overshoot during fast-rising transients |
| MSL Level 1 | Compatible with standard lead-free reflow profiles up to 260 °C peak without preconditioning |
| RoHS-compliant & halogen-free option | HE3 suffix denotes RoHS compliance; HM3 suffix adds halogen-free material certification |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between power rail and chassis ground. Use Value: Limits voltage to ≤35.4 V during 400 W surges, preventing damage to MCU power supplies and CAN transceivers. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and switching noise in factory automation. IC Role / Device Role / Timing Role: Signal-line TVS placed inline with sensor output trace before ADC input. Use Value: Sub-1 ns response time and 35.4 V clamping prevent latch-up or offset drift in precision front-end amplifiers. |
| Consumer USB Port Surge Suppression | Telecom DC Power Input Protection |
Use Scenario: Safeguarding USB 2.0 data lines and VBUS against human-body-model (HBM) ESD events. IC Role / Device Role / Timing Role: Dual-channel protection where TPSMA7.5AHE3_B/I guards VBUS while companion devices protect D+/D-. Use Value: 150 µA max reverse leakage at 6.4 V ensures minimal impact on USB suspend current budget. | Use Scenario: Securing 48 V DC telecom power inputs against lightning-induced surges on outdoor equipment. IC Role / Device Role / Timing Role: Primary-stage clamping device upstream of DC/DC converter input filter. Use Value: 40 A IFSM rating and 185 °C TJ max support robust operation in unventilated enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5A | Same VBR (7.5 V), but SMB package (DO-214AA); 600 W PPPM, higher IPPM (32.4 A) | Larger footprint; better suited for higher-energy transients where board space permits | Select when surge energy exceeds 400 W or thermal pad area allows larger SMB layout |
| 1.5SMC7.5A | Same VBR, but SMC package (DO-214AB); 1500 W PPPM, 123 A IPPM, higher VC (12.9 V) | Higher clamping voltage and much larger package; intended for primary-level AC/DC input protection | Choose for front-end mains-side protection where higher standoff and energy absorption are required |
Compared with SMBJ7.5A and 1.5SMC7.5A, the TPSMA7.5AHE3_B/I offers optimal balance of compact SMA footprint, AEC-Q101 qualification, and 400 W surge capability-making it ideal for space-constrained, high-reliability automotive and industrial PCBs where moderate transient energy must be managed without layout redesign.
Availability
TPSMA7.5AHE3_B/I is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply and AEC-Q101 compliance.
Supply support for TPSMA7.5AHE3_B/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 reliability, thermal performance, and automotive qualification.
The TPSMA7.5AHE3_B/I belongs to Vishay's PAR® series of surface-mount TVS diodes, engineered specifically for high-temperature stability and repeatable clamping in harsh-environment applications such as automotive electronics and industrial controls.
FAQ
What is the breakdown voltage tolerance of the TPSMA7.5AHE3_B/I?
The TPSMA7.5AHE3_B/I has a specified breakdown voltage (VBR) 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 is confirmed in the Electrical Characteristics table of Vishay document 88405 and applies under standard test conditions at TA = 25 °C. The TPSMA7.5AHE3_B/I maintains this specification across its qualified operating temperature range.
Is the TPSMA7.5AHE3_B/I AEC-Q101 qualified?
Yes, the TPSMA7.5AHE3_B/I is AEC-Q101 qualified. The HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction, as stated in the Mechanical Data section of Vishay document 88405. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, making the TPSMA7.5AHE3_B/I suitable for automotive applications such as body control modules and infotainment systems.
What is the maximum clamping voltage of the TPSMA7.5AHE3_B/I during a surge event?
The maximum clamping voltage (VC) of the TPSMA7.5AHE3_B/I is 35.4 V at 11.3 A peak pulse current (IPPM), measured with a 10/1000 µs waveform. This value is guaranteed per the Electrical Characteristics table in Vishay document 88405 and reflects worst-case clamping performance under rated surge conditions. The TPSMA7.5AHE3_B/I achieves this with low dynamic impedance, minimizing voltage overshoot on protected circuits.
Does the TPSMA7.5AHE3_B/I have unidirectional or bidirectional polarity?
The TPSMA7.5AHE3_B/I is unidirectional only, as confirmed in the Features section of Vishay document 88405. Its cathode is marked by a visible color band, and it conducts only during positive transients relative to the anode. This polarity configuration makes the TPSMA7.5AHE3_B/I appropriate for protecting DC power rails and single-polarity signal lines-not AC or differential bus applications requiring symmetrical clamping.
What is the thermal rating and mounting requirement for the TPSMA7.5AHE3_B/I?
The TPSMA7.5AHE3_B/I is rated for a maximum junction temperature of +185 °C and requires mounting on PCBs with 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve full 400 W peak pulse power rating. Thermal performance is derated above TA = 25 °C per Figure 2 in Vishay document 88405. The TPSMA7.5AHE3_B/I's SMA (DO-214AC) package supports MSL Level 1 handling and lead-free reflow up to 260 °C peak.
TPSMA7.5AHE3_B/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- 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):
- 35.4A
- Power - Peak Pulse:
- 400W
- 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-214AC (SMA)
TPSMA7.5AHE3_B/I FAQ
1.How can I place an order for TPSMA7.5AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA7.5AHE3_B/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 TPSMA7.5AHE3_B/I reliable?
The price and inventory of TPSMA7.5AHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA7.5AHE3_B/I is usually 5 days.
3.What payment methods are accepted for TPSMA7.5AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA7.5AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA7.5AHE3_B/I?
TPSMA7.5AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA7.5AHE3_B/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 TPSMA7.5AHE3_B/I?
For technical support, including TPSMA7.5AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA7.5AHE3_B/I requirements.
6.How does Aetrix verify that TPSMA7.5AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All TPSMA7.5AHE3_B/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 TPSMA7.5AHE3_B/I meets industry standards.
7.What is the process for return or replacement of TPSMA7.5AHE3_B/I?
All TPSMA7.5AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA7.5AHE3_B/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 TPSMA7.5AHE3_B/I part is unused and in its original packaging.
Return procedure for TPSMA7.5AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA7.5AHE3_B/I Tags
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