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Vishay General Semiconductor - Diodes Division P4SMA56A-M3/61
- Part No.:
- P4SMA56A-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA56A-M3/61.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,225
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Product details
Overview
P4SMA56A-M3/61 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 power and signal lines. It features a 56 V breakdown voltage (VBR = 53.2–58.8 V at IT = 1.0 mA), 47.8 V maximum standoff voltage (VWM), 77.0 V clamping voltage (VC) at 5.2 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 P4SMA56A-M3/61 datasheet, P4SMA56A-M3/61 pinout, P4SMA56A-M3/61 application, or P4SMA56A-M3/61 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 clamping performance under repetitive surge conditions.
Technical Context
The P4SMA56A-M3/61 operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling fast response (<1 ns) to ESD and lightning-induced transients.
It is rated for 400 W peak pulse power (10/1000 µs) at TA = 25 °C, derating linearly above 25 °C per Fig. 2; maximum forward surge current is 40 A (8.3 ms half-sine), and it meets J-STD-020 MSL Level 1 with 260 °C reflow peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 53.2 V / 58.8 V at IT = 1.0 mA - defines precise avalanche initiation window for reliable overvoltage triggering |
| VWM | 47.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 77.0 V at 5.2 A - clamped voltage during 400 W transient, limiting stress on downstream components |
| PPPM | 400 W (10/1000 µs) - surge energy handling capacity on standard 0.2" × 0.2" copper pads |
| IFSM | 40 A (8.3 ms half-sine) - single-event surge current capability without bond wire failure |
| TJ Range | −65 °C to +150 °C - enables operation in under-hood automotive and industrial ambient environments |
| Package | SMA (DO-214AC) - surface-mount footprint compatible with automated placement and reflow soldering |
Pinout & Package
SMA (DO-214AC) package: molded plastic case with matte tin-plated leads, UL 94 V-0 rated, 0.208" × 0.157" outline, cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge events |
| Cathode | Reverse-biased clamping terminal | Banded end; connected to higher-potential side; avalanches to clamp transients above VWM |
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/2 Ω) on 12 V/24 V rails |
| Glass passivated junction | Ensures stable VBR drift < ±5% over lifetime and improved humidity resistance vs. epoxy-passivated alternatives |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning or baking, reducing manufacturing overhead |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD > 10 kV/ns), improving system immunity |
| Halogen-free, RoHS-compliant (M3) | Fulfills IPC-1752A material declaration requirements for green electronics manufacturing |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protects microcontroller GPIOs and CAN transceiver power rails from load dump and inductive switching spikes in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS clamps reverse transients on 12 V supply rail upstream of LDO regulators. Use Value: Limits VC to 77.0 V during 400 W surges, preventing latch-up or gate oxide damage in downstream 3.3 V/5 V logic. |
Use Scenario: Shields 24 V digital input circuitry from field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across optocoupler input terminals to absorb 10/1000 µs transients. Use Value: Withstands 40 A surge current without degradation, maintaining long-term reliability in high-noise plant environments. |
| Telecom Power Supply Front-End | Consumer Appliance Motor Driver |
Use Scenario: Guards AC-DC adapter secondary-side 48 V output against lightning-induced common-mode surges on Ethernet or PoE lines. IC Role / Device Role / Timing Role: Secondary-side unidirectional suppressor between DC bus and DC-DC converter input. Use Value: Clamps to 77.0 V within <1 ns, preventing overvoltage shutdown of synchronous rectifier controllers. |
Use Scenario: Protects H-bridge gate drivers from back-EMF spikes generated by brushed DC motors in washing machines or HVAC blowers. IC Role / Device Role / Timing Role: TVS placed across motor terminals to absorb inductive kickback during PWM commutation. Use Value: Handles repetitive 400 W pulses at 0.01% duty cycle, eliminating need for external snubbers or RC networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58A (Bourns) | Same VBR range (55.1–60.9 V), but SMB package (DO-214AA); RθJA = 100 °C/W vs. 120 °C/W | Higher power density; better thermal performance on limited PCB area, but larger footprint than SMA | Select SMBJ58A when board space allows larger package and thermal margin is critical |
| 1.5SMC56A (ON Semiconductor) | Identical VBR, VWM, VC; SMC (DO-214AB) package; 1.5 kW peak rating (10/1000 µs) vs. 400 W | Higher surge capacity supports harsher environments (e.g., railway traction control), but requires larger pad layout | Choose 1.5SMC56A for applications requiring >400 W single-pulse immunity with same clamping behavior |
Compared with P4SMA56A-M3/61, SMBJ58A offers superior thermal dissipation in a slightly larger package, while 1.5SMC56A delivers triple the peak pulse power in an SMC outline - both retain identical clamping voltage and breakdown characteristics but demand different PCB layout and thermal management strategies.
Availability
P4SMA56A-M3/61 is available at Aetrix Electronics and suitable for industrial PLCs, automotive body electronics, telecom power supplies, and consumer appliance motor control systems requiring stable component supply, halogen-free compliance, and automated assembly support.
Supply support for P4SMA56A-M3/61 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The P4SMA series targets cost-sensitive, high-volume transient protection needs in consumer, industrial, and automotive electronics - optimized for automated SMT assembly and robust surge immunity in compact form factors.
FAQ
What is the maximum clamping voltage of the P4SMA56A-M3/61 under a 10/1000 µs surge?
The P4SMA56A-M3/61 has a maximum clamping voltage (VC) of 77.0 V at 5.2 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured with the device mounted on 0.2" × 0.2" copper pads per JEDEC standards and represents the upper limit of voltage seen by protected circuitry during a 400 W transient event. The P4SMA56A-M3/61 maintains this clamping performance across its full operating temperature range.
Is the P4SMA56A-M3/61 AEC-Q101 qualified?
No, the P4SMA56A-M3/61 is not AEC-Q101 qualified. The "M3" suffix denotes halogen-free, RoHS-compliant commercial-grade construction. For AEC-Q101 qualification, Vishay specifies part numbers with "HM3" or "HE3" suffixes (e.g., P4SMA56AHM3_A). The P4SMA56A-M3/61 is rated for −65 °C to +150 °C junction temperature but lacks the extended reliability testing required for automotive qualification.
What does the "/61" in P4SMA56A-M3/61 indicate?
"/61" is the tape-and-reel packaging code indicating 1800 units per 7-inch diameter reel. This format supports automated pick-and-place assembly. Alternative packaging codes include "/5A" (7500 units per 13-inch reel). The P4SMA56A-M3/61 uses plastic carrier tape compliant with EIA-481-D standards and is compatible with standard SMT feeders.
Can the P4SMA56A-M3/61 be used in bidirectional configurations?
No, the P4SMA56A-M3/61 is strictly unidirectional. Bidirectional variants in the P4SMA family use the "CA" suffix (e.g., P4SMA56CA). The P4SMA56A-M3/61 has a cathode band marking and conducts only in reverse breakdown; using it in bidirectional applications would leave positive-going transients unprotected and risk forward conduction damage during sustained overvoltage.
What is the thermal resistance from junction to ambient for the P4SMA56A-M3/61?
The typical thermal resistance from junction to ambient (RθJA) for the P4SMA56A-M3/61 is 120 °C/W when mounted on standard 0.2" × 0.2" copper pads per JEDEC 51-3. This value assumes no additional heatsinking and defines the steady-state temperature rise under DC power dissipation. For pulsed operation, transient thermal impedance must be evaluated using Fig. 5 in the datasheet, as short-duration surges do not fully propagate to ambient.
P4SMA56A-M3/61 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):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 5.2A
- 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)
P4SMA56A-M3/61 FAQ
1.How can I place an order for P4SMA56A-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA56A-M3/61 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 P4SMA56A-M3/61 reliable?
The price and inventory of P4SMA56A-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA56A-M3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA56A-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA56A-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA56A-M3/61?
P4SMA56A-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA56A-M3/61 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 P4SMA56A-M3/61?
For technical support, including P4SMA56A-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA56A-M3/61 requirements.
6.How does Aetrix verify that P4SMA56A-M3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA56A-M3/61 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 P4SMA56A-M3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA56A-M3/61?
All P4SMA56A-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA56A-M3/61, 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 P4SMA56A-M3/61 part is unused and in its original packaging.
Return procedure for P4SMA56A-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA56A-M3/61 Tags
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