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Vishay General Semiconductor - Diodes Division P4SMA7.5A-E3/61
- Part No.:
- P4SMA7.5A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA7.5A-E3/61.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,897
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Product details
Overview
P4SMA7.5A-E3/61 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 DC power rails and signal lines. It features 7.13 V minimum breakdown voltage (VBR), 6.40 V maximum stand-off voltage (VWM), 11.3 V clamping voltage (VC) at 35.4 A peak pulse current (IPPM), and 400 W peak pulse power (10/1000 µs waveform), commonly deployed in automotive sensor interface protection and industrial I/O line surge suppression.
For engineers reviewing the P4SMA7.5A-E3/61 datasheet, P4SMA7.5A-E3/61 pinout, P4SMA7.5A-E3/61 application, or P4SMA7.5A-E3/61 equivalent, key selection criteria include unidirectional polarity, 150 °C max junction temperature, 3.3 W steady-state power dissipation, 10 mA test current (IT), and compliance with AEC-Q101 for automotive-grade reliability.
Technical Context
The P4SMA7.5A-E3/61 operates as a clamping-type TVS diode with avalanche breakdown behavior, triggered when reverse voltage exceeds its 7.13–7.88 V breakdown range. Its glass-passivated junction ensures stable leakage performance (<500 µA at VWM) and fast response time (<1 ns), enabling effective suppression of ESD and inductive switching transients.
Thermally, it exhibits 120 °C/W junction-to-ambient thermal resistance (RθJA) on standard 0.2" × 0.2" copper pads and supports repetitive surge duty cycles up to 0.01% at 400 W. The device is rated for -65 °C to +150 °C operating junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.13 V / 7.88 V - Ensures reliable conduction onset above 6.40 V stand-off without false triggering |
| VC @ IPPM | 11.3 V at 35.4 A - Limits downstream voltage stress during 400 W transient events |
| IPPM | 35.4 A - Peak current handling capability under standardized 10/1000 µs surge waveform |
| VWM | 6.40 V - Maximum continuous reverse working voltage before significant leakage begins |
| PPPM | 400 W - Peak pulse power rating defining transient energy absorption capacity |
| ID @ VWM | ≤500 µA - Low reverse leakage preserves system efficiency in standby and low-power modes |
| TJ max | +150 °C - Enables operation in under-hood automotive and high-temperature industrial environments |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VREV > VBR |
| Anode (unmarked end) | Reference/ground return path | Typically tied to system ground or low-impedance return plane for clamping action |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Supports robust protection against IEC 61000-4-5 Level 3 surges (1 kV/42 Ω) on 12 V systems |
| Glass passivated chip junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity stress |
| AEC-Q101 qualified (E3 suffix variant) | Validated for automotive applications including engine control modules and body electronics |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free reflow assembly without moisture-related popcorn failure |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a) |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
|
Use Scenario: Protecting analog/digital sensor outputs (e.g., Hall effect, pressure, temperature) from load dump and inductive kickback in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between sensor output line and chassis ground. Use Value: Limits transient voltage to ≤11.3 V, preventing damage to MCU GPIO or ADC input stages while maintaining signal integrity below 6.4 V normal operation. |
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from field wiring surges and electrostatic discharge. IC Role / Device Role / Timing Role: Standoff protection element mounted at connector entry point, shunting transients before optocoupler or Schmitt trigger input. Use Value: Withstands repeated 400 W pulses without degradation, ensuring >100,000 surge events over product lifetime per IEC 61000-4-5 testing. |
| Consumer Power Adapter Output Clamping | Telecom Line Card Surge Suppression |
|
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters supplying USB-C PD or 5 V logic rails. IC Role / Device Role / Timing Role: Fast-acting clamp across regulated output to absorb flyback spikes and ESD events. Use Value: 11.3 V clamping voltage prevents latch-up in downstream LDOs or USB controllers during 8 kV contact ESD (IEC 61000-4-2). |
Use Scenario: Front-end protection for Ethernet PHY or RS-485 transceivers exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS on differential pair or VCC rail, coordinated with GDT or MOV secondary protection. Use Value: 35.4 A IPPM capacity enables coordination with upstream protectors to meet GR-1089-CORE Level 3 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A | Higher VWM (6.0 V), lower VC (10.5 V), same 400 W rating but SMB package (larger footprint) | Better suited for tighter clamping margin but requires PCB layout change due to DO-214AA size | Select when lower clamping voltage is critical and board space allows larger SMB package |
| 1.5SMC7.5A | Same VBR/VWM/VC, but higher 1500 W rating and SMC (DO-214AB) package with greater thermal mass | Used where sustained surge energy exceeds P4SMA series capability, e.g., AC mains input stages | Choose for higher-energy transients; not drop-in due to larger outline and different pad layout |
Compared with SMBJ7.0A and 1.5SMC7.5A, the P4SMA7.5A-E3/61 offers optimal balance of compact SMA footprint, automotive qualification, and precise 6.4 V standoff for 5 V–12 V rail protection-making it preferred for space-constrained, high-reliability embedded interfaces where exact VWM margin and AEC-Q101 compliance are mandatory.
Availability
P4SMA7.5A-E3/61 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC inputs, consumer power adapter outputs, and telecom line card designs requiring stable component supply, RoHS-compliant sourcing, and AEC-Q101 validation.
Supply support for P4SMA7.5A-E3/61 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, MOSFETs, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The P4SMA7.5A-E3/61 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-speed, low-clamping-voltage transient suppression in space-constrained surface-mount applications across automotive, industrial, and communications markets.
FAQ
What is the maximum clamping voltage of the P4SMA7.5A-E3/61 under surge conditions?
The P4SMA7.5A-E3/61 has a maximum clamping voltage (VC) of 11.3 V when subjected to its rated peak pulse current of 35.4 A using the 10/1000 µs waveform. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on the protected circuit during transient events. The P4SMA7.5A-E3/61 maintains this clamping performance across its full operating temperature range, supporting robust design margins in automotive and industrial environments.
Is the P4SMA7.5A-E3/61 suitable for automotive applications?
Yes, the P4SMA7.5A-E3/61 is AEC-Q101 qualified and explicitly listed in Vishay's automotive-grade ordering codes (E3 suffix). It meets stringent requirements for temperature cycling, humidity resistance, and surge endurance required in engine control units, body electronics, and ADAS sensor interfaces. The P4SMA7.5A-E3/61 also complies with MSL Level 1 and supports lead-free reflow up to 260 °C, making it fully compatible with automotive manufacturing processes.
What is the standoff voltage rating of the P4SMA7.5A-E3/61?
The P4SMA7.5A-E3/61 has a maximum stand-off voltage (VWM) of 6.40 V, meaning it remains in high-impedance blocking mode for reverse voltages up to this level with leakage current limited to ≤500 µA. This rating ensures compatibility with 5 V logic systems and 6 V nominal rails while providing sufficient margin above typical operating voltage to avoid false triggering. The P4SMA7.5A-E3/61 achieves this with tight VBR tolerance (7.13–7.88 V) and stable temperature coefficient (0.061 %/°C).
Does the P4SMA7.5A-E3/61 have bidirectional capability?
No, the P4SMA7.5A-E3/61 is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. It conducts only in reverse bias above VBR; forward conduction follows standard silicon diode behavior with ~3.5 V forward voltage at 25 A. For bidirectional protection, Vishay offers the P4SMA7.5CA variant (CA suffix), which provides symmetrical clamping in both polarities and no polarity marking. The P4SMA7.5A-E3/61 must be oriented correctly in-circuit with cathode toward the protected line.
What package type does the P4SMA7.5A-E3/61 use, and what are its mounting requirements?
The P4SMA7.5A-E3/61 uses the SMA (DO-214AC) surface-mount package-a compact, low-profile outline measuring 4.93 mm × 3.99 mm × 2.29 mm with gull-wing leads. It requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for rated 400 W pulse power dissipation. The P4SMA7.5A-E3/61 is MSL Level 1 and compatible with standard lead-free reflow profiles peaking at 260 °C, with matte tin plating ensuring solderability per J-STD-002.
P4SMA7.5A-E3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA, TransZorb®
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA7.5A-E3/61 FAQ
1.How can I place an order for P4SMA7.5A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA7.5A-E3/61 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 P4SMA7.5A-E3/61 reliable?
The price and inventory of P4SMA7.5A-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA7.5A-E3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA7.5A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA7.5A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA7.5A-E3/61?
P4SMA7.5A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA7.5A-E3/61 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 P4SMA7.5A-E3/61?
For technical support, including P4SMA7.5A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA7.5A-E3/61 requirements.
6.How does Aetrix verify that P4SMA7.5A-E3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA7.5A-E3/61 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 P4SMA7.5A-E3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA7.5A-E3/61?
All P4SMA7.5A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA7.5A-E3/61, 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 P4SMA7.5A-E3/61 part is unused and in its original packaging.
Return procedure for P4SMA7.5A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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