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Vishay General Semiconductor - Diodes Division P4SMA75CA-E3/5A
- Part No.:
- P4SMA75CA-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA75CA-E3/5A.pdf
- Description:
- TVS DIODE 64.1VWM 104VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,202
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Product details
Overview
P4SMA75CA-E3/5A from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in signal and power lines. It features a 75 V standoff voltage (VWM), 82.5 V minimum breakdown voltage (VBR), 104 V maximum clamping voltage (VC) at 3.9 A peak pulse current, and 400 W peak pulse power rating with a 10/1000 µs waveform - deployed in industrial sensor interfaces and automotive ECUs.
For engineers reviewing the P4SMA75CA-E3/5A datasheet, P4SMA75CA-E3/5A pinout, P4SMA75CA-E3/5A application, or P4SMA75CA-E3/5A equivalent, this page delivers verified electrical parameters, package dimensions, clamping behavior under surge conditions, thermal derating curves, and RoHS-compliant commercial-grade sourcing details - all specific to the SMA (DO-214AC) bidirectional variant.
Technical Context
The P4SMA75CA-E3/5A operates as a bidirectional avalanche diode, symmetrically clamping transient voltages above ±82.5 V (VBR min) and below ±75 V (VWM) in both polarities. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at VWM), while its low incremental surge resistance enables rapid energy diversion during ESD or lightning-induced surges.
Rated for 400 W peak pulse power (10/1000 µs) and 3.9 A IPPM, it sustains repetitive transients at 0.01% duty cycle and derates linearly above 25 °C ambient per Fig. 2. With a junction-to-ambient thermal resistance of 120 °C/W and max operating temperature of +150 °C, it supports reliable operation on standard 5.0 mm × 5.0 mm copper pads without heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 75 V - Maximum continuous reverse working voltage before conduction begins in either direction |
| VBR (Breakdown Voltage) | 71.3–78.8 V at 1 mA - Confirmed avalanche onset range ensuring predictable clamping threshold |
| VC (Clamping Voltage) | 104 V at 3.9 A IPPM - Peak voltage seen across protected circuit during worst-case 10/1000 µs surge |
| PPPM (Peak Pulse Power) | 400 W - Sustained transient energy absorption capability under standardized surge waveform |
| ID (Reverse Leakage) | <1 µA at 75 V - Minimal standby current preserving signal integrity and system power budget |
| TJ max | +150 °C - Maximum junction temperature enabling use in under-hood automotive and industrial environments |
| RθJA | 120 °C/W - Thermal resistance defining safe power dissipation limits on standard PCB copper pads |
Pinout & Package
Package: SMA (DO-214AC) - Surface-mount plastic case with matte tin-plated leads, UL 94 V-0 rated molding compound, MSL Level 1 (260 °C reflow peak), and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; symmetrical terminal in bidirectional operation | No polarity marking - identical electrical behavior in both directions; used interchangeably with cathode for AC or differential line protection |
| Cathode | Current exit terminal in forward bias; symmetrical terminal in bidirectional operation | No band or marking on device body - confirms bidirectional construction per P4SMA75CA designation |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) on 24 V industrial buses |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes overvoltage stress on downstream ICs such as CAN transceivers or ADC front-ends |
| 1 µA max reverse leakage at VWM | Preserves high-impedance sensor node accuracy and reduces quiescent power loss in battery systems |
| AEC-Q101 qualified option available | Supports automotive-grade reliability requirements when ordered with HE3/HM3 suffixes (not applicable to -E3/5A) |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking - simplifies SMT manufacturing flow |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting analog output lines (4–20 mA) and digital I/O (CAN/LIN) from load dump and inductive switching transients in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional TVS placed across signal pair or supply rail to clamp ±100 V transients within nanoseconds. Use Value: Prevents latch-up or permanent damage to precision op-amps and microcontrollers exposed to 400 W surge events. |
Use Scenario: Safeguarding LIN bus transceivers and door module MCUs against battery reverse connection and alternator load dump in 12 V vehicle networks. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing 10/1000 µs pulses up to 104 V while maintaining <1 µA leakage at 13.5 V nominal supply. Use Value: Ensures functional safety compliance (ISO 11452-4) without adding series impedance or distorting low-speed communication waveforms. |
| Telecom Power Input Stage | Consumer Appliance Motor Drive |
Use Scenario: Shielding PoE-powered Ethernet switch ports and DSL line drivers from lightning-induced common-mode surges on AC/DC adapter inputs. IC Role / Device Role / Timing Role: Primary-level TVS mounted at board edge to shunt >1 kV transients before reaching DC-DC converters and PHY ICs. Use Value: Achieves UL 497B recognition with clamping voltage margin below 120 V absolute maximum ratings of downstream silicon. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers connected to 24 V control boards. IC Role / Device Role / Timing Role: Fast-response bidirectional suppressor placed across motor terminals or H-bridge outputs to limit flyback voltage to 104 V. Use Value: Extends MOSFET lifetime by limiting VDS stress during turn-off, reducing need for snubbers or oversized FETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75CA | Same VWM (75 V) and VC (104 V), but 600 W PPPM rating and SMB (DO-214AA) package (larger footprint) | Higher power handling suits 48 V telecom systems; requires larger PCB pad layout | Select when surge energy exceeds 400 W or thermal mass demands lower RθJA |
| 1.5KE75CA | Through-hole TO-218 package, same VWM/VC, 1500 W PPPM, higher IFSM (125 A) | Designed for legacy through-hole assembly; not suitable for automated SMT lines | Choose only for repair, prototyping, or high-reliability military/aerospace where leaded mounting is mandated |
Compared with SMBJ75CA and 1.5KE75CA, the P4SMA75CA-E3/5A offers optimal balance of compact SMA footprint, 400 W surge capacity, and commercial-grade cost efficiency - making it ideal for space-constrained industrial and consumer designs requiring automated placement and RoHS compliance.
Availability
P4SMA75CA-E3/5A is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body electronics, telecom power inputs, and consumer appliance motor drives requiring stable component supply, full traceability, and consistent tape-and-reel delivery.
Supply support for P4SMA75CA-E3/5A 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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and application-specific performance.
The P4SMA Series targets cost-sensitive, high-volume surface-mount transient suppression needs across industrial, automotive, and communications markets - delivering standardized TVS performance in the compact SMA package with AEC-Q101 qualification options.
FAQ
What is the clamping voltage of the P4SMA75CA-E3/5A under a 10/1000 µs surge?
The P4SMA75CA-E3/5A has a maximum clamping voltage (VC) of 104 V at 3.9 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet 88367 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events - critical for ensuring downstream components remain within their absolute maximum ratings.
Is the P4SMA75CA-E3/5A RoHS-compliant and halogen-free?
Yes, the P4SMA75CA-E3/5A carries the "E3" suffix, indicating it is RoHS-compliant and meets commercial-grade environmental specifications per Vishay's material categorization (Doc. 99912). However, it is not halogen-free - that designation requires the "M3" suffix (e.g., P4SMA75CA-M3/5A), which uses halogen-free molding compound while retaining identical electrical specs.
Does the P4SMA75CA-E3/5A have polarity markings on the package?
No, the P4SMA75CA-E3/5A does not feature a cathode band or any polarity marking because it is a bidirectional TVS diode. As confirmed in the Vishay documentation, bidirectional types like P4SMA75CA have symmetrical electrical behavior in both directions, and the absence of marking distinguishes them from unidirectional variants (e.g., P4SMA75A) which include a visible cathode band.
What is the thermal resistance and maximum junction temperature of the P4SMA75CA-E3/5A?
The P4SMA75CA-E3/5A 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 datasheet Fig. 2, and a maximum junction temperature (TJ max) of +150 °C. These values define its safe operating area under sustained power dissipation and ensure compatibility with industrial and automotive ambient temperature profiles.
Can the P4SMA75CA-E3/5A be used in automotive applications?
The base P4SMA75CA-E3/5A is commercial-grade and not AEC-Q101 qualified. For automotive use, Vishay offers AEC-Q101 qualified versions under ordering codes like P4SMA75CAHE3_A (with HE3 suffix) - these undergo additional stress testing and screening. The P4SMA75CA-E3/5A itself is suitable for non-safety-critical automotive subsystems (e.g., infotainment power rails) where qualification is not mandated, but design validation remains the customer's responsibility.
P4SMA75CA-E3/5A 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA75CA-E3/5A FAQ
1.How can I place an order for P4SMA75CA-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA75CA-E3/5A 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 P4SMA75CA-E3/5A reliable?
The price and inventory of P4SMA75CA-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA75CA-E3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA75CA-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA75CA-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA75CA-E3/5A?
P4SMA75CA-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA75CA-E3/5A 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 P4SMA75CA-E3/5A?
For technical support, including P4SMA75CA-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA75CA-E3/5A requirements.
6.How does Aetrix verify that P4SMA75CA-E3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA75CA-E3/5A 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 P4SMA75CA-E3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA75CA-E3/5A?
All P4SMA75CA-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA75CA-E3/5A, 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 P4SMA75CA-E3/5A part is unused and in its original packaging.
Return procedure for P4SMA75CA-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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