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Vishay General Semiconductor - Diodes Division P4SMA75AHE3/5A
- Part No.:
- P4SMA75AHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA75AHE3/5A.pdf
- Description:
- TVS DIODE 64.1VWM 104VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,435
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Product details
Overview
P4SMA75AHE3/5A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 75 V standoff voltage (VWM), 71.3–78.8 V breakdown voltage (VBR) at 1 mA, and 104 V clamping voltage (VC) at 3.9 A peak pulse current (IPPM), designed to protect sensitive ICs and MOSFETs against inductive switching transients and ESD in automotive and industrial power rails.
For engineers reviewing the P4SMA75AHE3/5A datasheet, P4SMA75AHE3/5A pinout, P4SMA75AHE3/5A application, or P4SMA75AHE3/5A equivalent, this device delivers AEC-Q101 qualification, 400 W peak pulse power (10/1000 µs), low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive electronics and industrial control systems requiring robust overvoltage protection.
Technical Context
The P4SMA75AHE3/5A operates as a unidirectional clamping TVS diode with avalanche breakdown behavior, triggered when reverse voltage exceeds its specified VBR range. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns), enabling effective suppression of transient energy before downstream components are damaged.
Thermal design relies on its RθJA of 120 °C/W and RθJL of 30 °C/W, with derating above 25 °C per Figure 2. It supports repetitive 0.01% duty cycle pulses up to 400 W below 91 V and 300 W above 91 V, mounted on 0.2" × 0.2" copper pads per JEDEC standards.
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 rail margin. |
| VBR (Breakdown Voltage) | 71.3–78.8 V at 1 mA - Avalanche onset threshold; tight tolerance ensures predictable triggering across temperature. |
| VC (Clamping Voltage) | 104 V at IPPM = 3.9 A - Peak voltage seen by protected circuit during 10/1000 µs transient; limits stress on downstream ICs. |
| PPPM (Peak Pulse Power) | 400 W (10/1000 µs waveform) - Energy-handling capacity for single or low-duty-cycle surges; enables protection against IEC 61000-4-5 Level 4 events. |
| ID (Reverse Leakage) | 1.0 µA at VWM - Ultra-low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max | +150 °C - Maximum junction temperature rating; supports operation in under-hood automotive environments and enclosed industrial enclosures. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing; suitable for ASIL-B supporting functions. |
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; polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge (e.g., reverse battery protection). |
| Cathode | Reverse-biased clamping terminal | Connected to higher-potential side (e.g., VCC rail); avalanches into conduction when transient exceeds VBR to shunt current to ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including temperature cycling, HTRB, and ESD; enables use in engine control units and ADAS power domains. |
| 400 W peak pulse power (10/1000 µs) | Handles high-energy transients from inductive load switching (e.g., solenoids, relays) without degradation over lifetime. |
| Glass-passivated junction | Ensures stable VBR and low leakage across -65 °C to +150 °C; eliminates parameter drift due to humidity or contamination. |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free SMT reflow profiles; no pre-baking required prior to assembly. |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage overshoot during clamping; reduces risk of latch-up or gate oxide damage in protected MOSFETs and microcontrollers. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-connected ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and ground to clamp spikes up to ±100 V. Use Value: Withstands 400 W surges and maintains <1 µA leakage at 64.1 V, preserving low-quiescent-current design goals in always-on modules. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Clamping diode on differential or single-ended signal lines upstream of ADC inputs. Use Value: 104 V clamping voltage prevents ADC input saturation; low capacitance (<100 pF at VWM) avoids signal integrity degradation at ≤1 MHz bandwidth. |
| Telecom DC Power Input Protection | Consumer Device USB Port Surge Protection |
Use Scenario: Safeguarding PoE-powered equipment (e.g., IP cameras) from induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input before DC-DC converter stage. Use Value: AEC-Q101 qualification and 150 °C TJ rating ensure long-term reliability in sealed outdoor enclosures exposed to solar heating. |
Use Scenario: Adding secondary-level surge immunity to USB VBUS lines in portable speakers or smart home hubs. IC Role / Device Role / Timing Role: Standoff-rated TVS between VBUS and GND to absorb contact ESD (IEC 61000-4-2 ±15 kV air). Use Value: Fast <1 ns response and 1.0 µA leakage at 64.1 V prevent false triggering while maintaining USB 2.0 signal fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75A | Same VWM (64.1 V) and VC (104 V), but SMB package (DO-214AA); 600 W PPPM rating; higher thermal mass. | Preferred where board space allows larger footprint and higher surge margin is needed (e.g., industrial mains input stages). | Select SMBJ75A if layout permits larger pad area and system requires >400 W transient handling without derating. |
| 1.5SMC75A | Same electrical specs, but SMC (DO-214AB) package; 1500 W PPPM; higher IFSM (100 A); RθJA = 100 °C/W. | Better suited for high-repetition-rate surges and higher ambient temperatures due to improved thermal dissipation. | Choose 1.5SMC75A when protecting high-power motor drives or inverters with frequent switching-induced transients. |
Compared with P4SMA75AHE3/5A, SMBJ75A offers higher surge margin in a slightly larger package, while 1.5SMC75A provides superior thermal performance and repetition capability - both retain identical clamping behavior but differ in mechanical integration and thermal envelope.
Availability
P4SMA75AHE3/5A is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O protection, and telecom DC power input stages requiring stable component supply, AEC-Q101 compliance, and consistent 75 V clamping performance across production lots.
Supply support for P4SMA75AHE3/5A 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, and protection devices with emphasis on reliability, precision, and automotive-grade validation.
The P4SMA Series was developed specifically for surface-mount transient suppression in space-constrained, high-reliability applications - balancing low profile, AEC-Q101 compliance, and repeatable clamping performance across automotive and industrial environments.
FAQ
What is the maximum clamping voltage of the P4SMA75AHE3/5A under a 10/1000 µs transient?
The P4SMA75AHE3/5A has a maximum clamping voltage (VC) of 104 V at 3.9 A peak pulse current (IPPM) under a 10/1000 µs waveform. This value is measured per Figure 1 and Table on page 2 of the Vishay datasheet 88367, and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
Is the P4SMA75AHE3/5A suitable for automotive applications?
Yes, the P4SMA75AHE3/5A is AEC-Q101 qualified, as confirmed in the "FEATURES" section and ordering information table of the Vishay datasheet. The "HE3" suffix denotes RoHS-compliant and AEC-Q101 qualified construction, making P4SMA75AHE3/5A appropriate for under-hood and chassis-mounted automotive modules requiring validated reliability.
What does the "/5A" suffix mean in P4SMA75AHE3/5A?
The "/5A" suffix in P4SMA75AHE3/5A indicates packaging in a 13-inch diameter plastic tape and reel containing 7500 units, per the Ordering Information table on page 3 of the Vishay datasheet. It specifies delivery format only and does not affect electrical or thermal specifications of the P4SMA75AHE3/5A device itself.
What is the standoff voltage (VWM) rating for the P4SMA75AHE3/5A?
The standoff voltage (VWM) for the P4SMA75AHE3/5A is 64.1 V, as listed in the Electrical Characteristics table on page 2 of the Vishay datasheet. This is the maximum continuous reverse voltage the P4SMA75AHE3/5A can withstand without entering avalanche conduction, ensuring reliable operation on 60 V nominal power rails.
Does the P4SMA75AHE3/5A have polarity marking, and how is it identified?
Yes, the P4SMA75AHE3/5A is unidirectional and features a cathode band marking on the SMA (DO-214AC) package body, as stated in the "MECHANICAL DATA" section. The banded end corresponds to the cathode terminal, which must be connected toward the higher-potential side of the protected line (e.g., VCC) for proper clamping operation.
P4SMA75AHE3/5A 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)
P4SMA75AHE3/5A FAQ
1.How can I place an order for P4SMA75AHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA75AHE3/5A 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 P4SMA75AHE3/5A reliable?
The price and inventory of P4SMA75AHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA75AHE3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA75AHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA75AHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA75AHE3/5A?
P4SMA75AHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA75AHE3/5A 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 P4SMA75AHE3/5A?
For technical support, including P4SMA75AHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA75AHE3/5A requirements.
6.How does Aetrix verify that P4SMA75AHE3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA75AHE3/5A 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 P4SMA75AHE3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA75AHE3/5A?
All P4SMA75AHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA75AHE3/5A, 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 P4SMA75AHE3/5A part is unused and in its original packaging.
Return procedure for P4SMA75AHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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