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Vishay General Semiconductor - Diodes Division P4SMA75AHE3/61
- Part No.:
- P4SMA75AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA75AHE3/61.pdf
- Description:
- TVS DIODE 64.1VWM 104VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,063
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Product details
Overview
P4SMA75AHE3/61 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 75 V standoff voltage (VWM), 71.3–78.8 V breakdown voltage (VBR) at 1 mA, 104 V maximum clamping voltage (VC) at 3.9 A peak pulse current (IPPM), and 400 W peak pulse power rating with a 10/1000 µs waveform - suitable for protecting MOSFETs, ICs, and sensor interfaces against inductive switching transients in industrial and automotive electronics.
For engineers reviewing the P4SMA75AHE3/61 datasheet, P4SMA75AHE3/61 pinout, P4SMA75AHE3/61 application, or P4SMA75AHE3/61 equivalent, this device delivers AEC-Q101 qualification, SMA (DO-214AC) package compatibility, low incremental surge resistance, and verified clamping performance under repetitive surge conditions - critical for ESD and load-dump protection in high-reliability embedded systems.
Technical Context
The P4SMA75AHE3/61 operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast response time (<1 ns) and stable breakdown characteristics. Its thermal resistance (RθJA = 120 °C/W) and junction temperature range (–65 to +150 °C) support operation in thermally constrained PCB layouts with minimal copper pad area (0.2" × 0.2").
It complies with UL 497B recognition (QVGQ2) and meets JESD201 Class 2 whisker resistance. The device is rated for 40 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine) and exhibits a VBR temperature coefficient of +0.105 %/°C - enabling predictable voltage-clamping behavior across automotive ambient temperature extremes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 64.1 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working margin for protected circuitry. |
| VBR (Breakdown Voltage) | 71.3–78.8 V at 1 mA - Verified avalanche onset range; ensures consistent triggering across production lots and temperature. |
| VC (Clamping Voltage) | 104 V at 3.9 A (10/1000 µs) - Peak voltage seen by downstream components during surge; enables I/O stage protection with <30 V overhead headroom. |
| PPPM (Peak Pulse Power) | 400 W - Sustains single transient events without degradation; derates to 300 W above 91 V per spec. |
| ID (Reverse Leakage) | 1.0 µA max at VWM - Negligible standby current draw; preserves battery life and avoids false triggering in low-power sensor nodes. |
| TJ max | +150 °C - Supports under-hood automotive placement and industrial environments with elevated ambient temperatures. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per AEC standard. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode indicated by band; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction or surge clamp | Connected to protected line (e.g., VIN, signal input); must be routed with low-inductance trace to minimize overshoot. |
| Cathode | Current exit point during clamping; referenced to system ground or return path | Must connect directly to low-impedance ground plane; shared ground with protected IC improves clamping efficiency. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics over 1000+ surge events without parameter drift. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles; no moisture sensitivity handling required pre-assembly. |
| UL 497B Recognized (QVGQ2) | Validated for telecom and industrial surge protection compliance; reduces certification burden for end equipment. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a), improving system immunity. |
| AEC-Q101 qualification (HE3 suffix) | Confirms suitability for automotive powertrain, body control, and ADAS modules requiring extended lifetime reliability. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 12 V supply rail and LIN bus inputs in BCMs exposed to load-dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed at power entry and communication interface points. Use Value: Limits voltage to ≤104 V during 400 W surges, preventing damage to MCU, CAN transceivers, and driver ICs per ISO 16750-2. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers against inductive kickback from solenoid valves. IC Role / Device Role / Timing Role: Primary overvoltage clamp on field-side I/O terminals, mounted directly at connector entry. Use Value: Clamps 1 kV/50 Ω surge waveforms to <110 V within nanoseconds, preserving input conditioning circuitry and isolation barriers. |
| Telecom Power Supply Front-End | Consumer Appliance Motor Drive Stage |
Use Scenario: Secondary-side transient suppression on 48 V telecom rectifier outputs feeding PoE injectors and baseband processors. IC Role / Device Role / Timing Role: Standoff-rated TVS aligned with output capacitor bank to absorb residual switching spikes and lightning-induced surges. Use Value: Maintains 64.1 V working voltage while clamping to 104 V - compatible with 75 V-rated electrolytics and 100 V FETs. |
Use Scenario: Protecting gate drivers and bootstrap circuits in BLDC motor inverters subjected to back-EMF spikes during commutation. IC Role / Device Role / Timing Role: Localized clamping element across high-side gate resistor or bootstrap capacitor. Use Value: Fast response (<1 ns) and low clamping overshoot prevent false turn-on of power MOSFETs and reduce dv/dt stress on gate oxide. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ75A-E3/61 | Same SMA package, identical VWM (64.1 V) and VC (104 V), but lower PPPM (400 W vs. P4SMA75AHE3/61's 400 W - equal), no AEC-Q101 qualification. | Commercial-grade only; unsuitable for automotive OEM designs requiring AEC validation. | Select when AEC-Q101 is not required and cost optimization is prioritized over automotive qualification. |
| 1.5SMC75A | Higher power rating (1500 W), DO-214AB (SMC) package - larger footprint (7.11 × 6.22 mm vs. SMA's 4.93 × 3.99 mm), higher RθJA (60 °C/W). | Used where higher surge energy absorption is needed (e.g., primary AC input stages), but incompatible with space-constrained layouts. | Choose only if PCB real estate allows SMC and surge requirements exceed 400 W - not a drop-in replacement. |
Compared with SMAJ75A-E3/61, P4SMA75AHE3/61 adds AEC-Q101 qualification without sacrificing clamping performance or footprint; versus 1.5SMC75A, it trades surge capacity for compactness and thermal efficiency in dense board layouts.
Availability
P4SMA75AHE3/61 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, telecom power supplies, and consumer appliance motor drives requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P4SMA75AHE3/61 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive applications.
The P4SMA Series targets cost-sensitive yet reliability-critical transient suppression needs in surface-mount power and signal lines - engineered for automated assembly, AEC-Q101 compliance, and UL-recognized safety in harsh environments.
FAQ
What is the clamping voltage of the P4SMA75AHE3/61 under a 10/1000 µs surge?
The P4SMA75AHE3/61 has a maximum clamping voltage (VC) of 104 V at 3.9 A peak pulse current with a 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet (Document Number: 88367) and represents the upper voltage limit imposed on protected circuitry during standardized surge testing - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the P4SMA75AHE3/61 qualified for automotive applications?
Yes, the P4SMA75AHE3/61 is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in the Vishay P4SMA Series datasheet (Revision: 09-Jan-2024). This qualification covers stress tests including temperature cycling, high-temperature operating life, and mechanical shock - making P4SMA75AHE3/61 suitable for under-hood and chassis-mounted automotive electronics where reliability is mandated.
What is the standoff voltage (VWM) of the P4SMA75AHE3/61, and how does it relate to system design?
The P4SMA75AHE3/61 has a standoff voltage (VWM) of 64.1 V, meaning it remains non-conductive up to this DC or RMS voltage level. In system design, VWM must exceed the maximum normal operating voltage of the protected line - for example, selecting P4SMA75AHE3/61 for a nominal 48 V industrial bus provides 16.1 V margin before clamping initiates, balancing protection responsiveness with false-trigger avoidance.
Does the P4SMA75AHE3/61 have UL recognition, and what does that mean for end-equipment certification?
Yes, the P4SMA75AHE3/61 carries Underwriters Laboratories recognition under file number E136766 and standard UL 497B (QVGQ2), covering both unidirectional and bidirectional variants. This recognition validates its performance as a surge protector and reduces test burden for end-equipment manufacturers seeking UL listing - particularly in telecom, industrial control, and building automation systems.
What is the thermal resistance (RθJA) of the P4SMA75AHE3/61, and how should it guide PCB layout?
The P4SMA75AHE3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain junction temperature below 150 °C during repeated surges, PCB layout must provide adequate copper area and avoid thermal bottlenecks - especially important in automotive and industrial applications where ambient temperatures exceed 85 °C.
P4SMA75AHE3/61 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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 104V
- Current - Peak Pulse (10/1000µs):
- 3.9A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA75AHE3/61 FAQ
1.How can I place an order for P4SMA75AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA75AHE3/61 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 P4SMA75AHE3/61 reliable?
The price and inventory of P4SMA75AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA75AHE3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA75AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA75AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA75AHE3/61?
P4SMA75AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA75AHE3/61 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 P4SMA75AHE3/61?
For technical support, including P4SMA75AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA75AHE3/61 requirements.
6.How does Aetrix verify that P4SMA75AHE3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA75AHE3/61 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 P4SMA75AHE3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA75AHE3/61?
All P4SMA75AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA75AHE3/61, 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 P4SMA75AHE3/61 part is unused and in its original packaging.
Return procedure for P4SMA75AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA75AHE3/61 Tags
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