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Vishay General Semiconductor - Diodes Division P4SMA10A-M3/5A
- Part No.:
- P4SMA10A-M3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA10A-M3/5A.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA10A-M3/5A 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 10 V breakdown voltage (VBR min/max: 9.5–10.5 V at 1 mA), 8.55 V standoff voltage (VWM), 14.5 V maximum clamping voltage (VC) at 27.6 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P4SMA10A-M3/5A datasheet, P4SMA10A-M3/5A pinout, P4SMA10A-M3/5A application, or P4SMA10A-M3/5A equivalent, key selection criteria include unidirectional polarity, SMA package thermal resistance (RθJA = 120 °C/W), AEC-Q101 qualification status (M3 suffix indicates halogen-free RoHS-compliant commercial grade, not automotive-qualified), junction temperature range (−65 to +150 °C), and 1.0 µA max reverse leakage at VWM.
Technical Context
This TVS diode operates as a clamping device that remains non-conductive below its standoff voltage (8.55 V) and rapidly transitions to low-impedance conduction above its breakdown threshold (9.5–10.5 V). Its glass-passivated junction ensures stable avalanche characteristics and fast response time (<1 ns) to transient events such as ESD, inductive switching spikes, and lightning-induced surges.
The device is rated for 400 W peak pulse power (10/1000 µs), derated to 300 W above 91 V, and supports 40 A non-repetitive forward surge current (8.3 ms half-sine). Thermal performance is defined by RθJA = 120 °C/W (on standard 0.2" × 0.2" copper pads) and RθJL = 30 °C/W, enabling reliable operation up to TJ = 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 9.5 V / 10.5 V at IT = 1 mA - defines precise avalanche onset window for predictable clamping behavior |
| VWM | 8.55 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 14.5 V at 27.6 A - clamped voltage during 400 W transient, limiting stress on downstream components |
| IPPM | 27.6 A - peak pulse current capability under standardized 10/1000 µs waveform |
| PPPM | 400 W - transient energy absorption capacity without failure, critical for surge immunity compliance |
| ID @ VWM | 1.0 µA - ultra-low reverse leakage preserves signal integrity and system standby power |
| TJ Range | −65 °C to +150 °C - wide operational junction temperature range supports harsh-environment deployment |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Cathode indicated by band on body; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR |
| Anode (unbanded end) | Reference node | Typically tied to system ground or lower-potential rail; completes clamping path during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without derating in compact layout |
| Glass-passivated junction | Ensures stable, repeatable avalanche characteristics over lifetime and temperature cycling |
| MSL Level 1 (J-STD-020) | Allows unlimited floor life and reflow compatibility up to 260 °C peak, simplifying SMT assembly |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, improving protection margin for 3.3 V/5 V logic interfaces |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for consumer, industrial, and medical end equipment |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O pins against inductive kickback from relay coils and solenoid loads. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between driver output and ground to shunt flyback energy. Use Value: Limits transient voltage to ≤14.5 V, preventing latch-up or oxide damage in 5 V-tolerant MCU GPIOs and logic-level MOSFETs. |
Use Scenario: Surge suppression on LIN bus lines and sensor supply rails in door modules and lighting control units. IC Role / Device Role / Timing Role: Standoff-rated TVS on 12 V supply input to absorb load-dump and jump-start transients per ISO 7637-2. Use Value: Withstands 400 W pulses while maintaining <1 µA leakage at 8.55 V, preserving battery drain budget in always-on nodes. |
| Consumer Power Adapters | Telecom Interface Protection |
Use Scenario: Secondary-side overvoltage clamp on DC output rails of AC/DC adapters and USB PD chargers. IC Role / Device Role / Timing Role: Fast-response TVS across +VOUT and GND to suppress transformer ringing and rectifier reverse recovery spikes. Use Value: Clamps to 14.5 V within nanoseconds, protecting downstream DC-DC converters and USB port controllers from overshoot damage. |
Use Scenario: Input-stage protection for RS-485 transceivers and Ethernet PHYs exposed to field wiring surges. IC Role / Device Role / Timing Role: Unidirectional TVS on data line pairs referenced to local ground to divert common-mode transients. Use Value: Low capacitance (typ. <100 pF at VWM) avoids signal integrity degradation on 10 Mbps+ differential buses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Same SMA package, identical VBR (9.5–10.5 V), but rated for 400 W with tighter VC = 14.0 V @ 28.6 A; JEDEC-registered marking | Preferred where lower clamping voltage is required for 3.3 V interface protection; same PCB footprint | Select SMAJ10A if design requires marginally lower VC and JEDEC-standardized marking for traceability |
| 1.5SMC10A | Higher-power SMC (DO-214AB) package, same VBR/VWM, but 1500 W PPPM; larger footprint (7.11 × 6.22 mm vs. 4.5 × 2.79 mm) | Used in high-energy surge environments (e.g., outdoor telecom cabinets); requires layout change | Choose 1.5SMC10A only when 400 W is insufficient and board space allows larger SMC footprint |
Compared with SMAJ10A, P4SMA10A-M3/5A offers identical electrical clamping but slightly higher VC and halogen-free compliance; versus 1.5SMC10A, it trades power handling for compactness and cost-making it optimal for space-constrained, medium-surge industrial and consumer designs.
Availability
P4SMA10A-M3/5A is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, consumer power adapters, and telecom interface protection requiring stable component supply and halogen-free compliance.
Supply support for P4SMA10A-M3/5A 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series was developed for surface-mount transient suppression in space-constrained, high-volume applications-balancing 400 W surge capability, low leakage, and MSL Level 1 reflow compatibility across commercial and automotive-grade variants.
FAQ
What is the maximum clamping voltage of P4SMA10A-M3/5A under surge conditions?
The P4SMA10A-M3/5A has a maximum clamping voltage (VC) of 14.5 V at 27.6 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during transient events. The P4SMA10A-M3/5A maintains this clamping performance across its specified operating temperature range and is validated per IEC 61000-4-5 surge immunity testing protocols.
Is P4SMA10A-M3/5A qualified for automotive applications?
No, P4SMA10A-M3/5A is not AEC-Q101 qualified. The "M3" suffix denotes halogen-free, RoHS-compliant commercial-grade construction. Automotive-qualified versions use "HM3" or "HE3" suffixes (e.g., P4SMA10AHM3_A), which include additional stress testing and traceability. The P4SMA10A-M3/5A is intended for industrial, consumer, and telecom applications where AEC-Q101 is not mandated.
What is the standoff voltage (VWM) and why does it matter for P4SMA10A-M3/5A?
The standoff voltage (VWM) of P4SMA10A-M3/5A is 8.55 V - the maximum DC or RMS voltage the device can withstand continuously without entering avalanche conduction. This parameter ensures minimal leakage (<1.0 µA) during normal operation, preserving signal integrity and power efficiency. Selecting a VWM ≥10–20% above the system's maximum operating voltage prevents false triggering while maintaining adequate surge margin.
Can P4SMA10A-M3/5A be used in bidirectional configurations?
No, P4SMA10A-M3/5A is unidirectional only. Bidirectional variants carry a "CA" suffix (e.g., P4SMA10CA) and feature symmetrical breakdown in both polarities. Using P4SMA10A-M3/5A in reverse-biased AC or differential signal paths will result in forward conduction and potential failure. Always verify polarity marking (cathode band) and match device type to circuit topology.
What is the thermal resistance of P4SMA10A-M3/5A and how does it affect layout?
P4SMA10A-M3/5A 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 terminal. This value assumes standard FR-4 PCB with no internal planes. To maintain TJ ≤150 °C under sustained power dissipation, minimize trace length, maximize copper area, and avoid routing heat-sensitive components nearby. The P4SMA10A-M3/5A's RθJL = 30 °C/W further emphasizes the importance of solid solder joint thermal conduction.
P4SMA10A-M3/5A 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 27.6A
- 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)
P4SMA10A-M3/5A FAQ
1.How can I place an order for P4SMA10A-M3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA10A-M3/5A 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 P4SMA10A-M3/5A reliable?
The price and inventory of P4SMA10A-M3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA10A-M3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA10A-M3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA10A-M3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA10A-M3/5A?
P4SMA10A-M3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA10A-M3/5A 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 P4SMA10A-M3/5A?
For technical support, including P4SMA10A-M3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA10A-M3/5A requirements.
6.How does Aetrix verify that P4SMA10A-M3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA10A-M3/5A 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 P4SMA10A-M3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA10A-M3/5A?
All P4SMA10A-M3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA10A-M3/5A, 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 P4SMA10A-M3/5A part is unused and in its original packaging.
Return procedure for P4SMA10A-M3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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