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Vishay General Semiconductor - Diodes Division P4SMA56AHE3/61
- Part No.:
- P4SMA56AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA56AHE3/61.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,219
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Product details
Overview
P4SMA56AHE3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 56 V breakdown voltage (VBR = 53.2–58.8 V at IT = 1.0 mA), 47.8 V standoff voltage (VWM), and 77.0 V clamping voltage (VC) at 5.2 A peak pulse current (IPPM). It delivers 400 W peak pulse power (10/1000 µs waveform) and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the P4SMA56AHE3/61 datasheet, P4SMA56AHE3/61 pinout, P4SMA56AHE3/61 application, or P4SMA56AHE3/61 equivalent, this device serves as a robust, low-profile overvoltage clamp for DC power rails and signal lines where fast response (<1 ns), low incremental surge resistance, and automotive-grade reliability are required.
Technical Context
The P4SMA56AHE3/61 operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its VBR threshold to divert transient energy to ground. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
Designed for surface-mount assembly on standard PCB copper pads (0.2" × 0.2"), it features MSL Level 1 moisture sensitivity, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets UL 94 V-0 flammability requirements. Thermal resistance is RθJA = 120 °C/W (typical) and RθJL = 30 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 53.2–58.8 V at 1.0 mA test current - defines precise conduction onset for accurate overvoltage triggering |
| Standoff Voltage (VWM) | 47.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| Clamping Voltage (VC) | 77.0 V at 5.2 A IPPM - limits downstream circuit voltage during 400 W transient events |
| Peak Pulse Power (PPPM) | 400 W (10/1000 µs waveform) - sustains high-energy transients without failure |
| Operating Temperature | −65 °C to +150 °C - supports under-hood automotive and industrial environments |
| Surge Current (IFSM) | 40 A (8.3 ms half-sine) - withstands single-event inductive switching surges |
| AEC-Q101 Qualified | Yes - validated for automotive electronic control units per stress test requirements |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with molded compound meeting UL 94 V-0. Cathode indicated by band on body; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to ground or low-impedance return path to shunt surge energy away from protected IC |
| Anode (unbanded end) | Protected line input | Connected to DC rail or signal line requiring overvoltage clamping; reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power rating | Enables robust protection against ISO 7637-2 pulse 1/2a/5a and IEC 61000-4-5 surges on 12 V/24 V systems |
| AEC-Q101 qualification | Validates reliability for automotive ECU, body control module, and ADAS sensor interface applications |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage stress on downstream MOSFETs, MCUs, and CAN transceivers |
| Fast response time (< 1 ns) | Clamps transients before sensitive components experience damaging voltage overshoot |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without pre-baking or special handling |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Clamping |
|---|---|
Use Scenario: Protecting 12 V battery-supplied microcontrollers and gate drivers in engine control units from load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND, acting as last-line voltage clamp during transients up to 400 W. Use Value: Limits rail voltage to ≤77 V during 100 V/50 ms load dump events, preventing latch-up or oxide breakdown in 3.3 V/5 V logic. |
Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: TVS mounted directly at connector entry point to suppress ESD (IEC 61000-4-2) and cable discharge events. Use Value: Clamps 8 kV contact ESD pulses to <77 V within nanoseconds, preserving ADC reference integrity and sensor signal accuracy. |
| Telecom DC Power Input Protection | Consumer Device USB Port Surge Suppression |
Use Scenario: Securing −48 V DC telecom rectifier outputs feeding base station backplane supplies. IC Role / Device Role / Timing Role: Unidirectional TVS connected cathode-to-ground on −48 V rail to absorb lightning-induced surges on distribution lines. Use Value: Withstands 400 W 10/1000 µs transients while maintaining VWM = 47.8 V, ensuring no false triggering during normal ripple or brownout conditions. |
Use Scenario: Adding secondary surge protection on 5 V USB VBUS lines in smart home hubs exposed to AC adapter coupling noise. IC Role / Device Role / Timing Role: Low-capacitance TVS placed upstream of USB switch IC to limit VBUS overvoltage without degrading 480 Mbps data integrity. Use Value: Delivers 77 V clamping at 5.2 A with minimal parasitic capacitance, avoiding signal rise-time degradation in high-speed USB 2.0 paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58A-E3/52 (Vishay) | Higher package thermal mass (SMB/DO-214AA); same VBR range but 600 W PPPM; RθJA = 85 °C/W | Better suited for higher average power dissipation; requires larger pad layout | Select when board space allows SMB footprint and system demands >400 W surge margin |
| 1.5SMC56A (ON Semiconductor) | Same SMA package; VBR = 53.2–58.8 V; VC = 77 V at 5.2 A; not AEC-Q101 qualified | Lacks automotive qualification; suitable for commercial/industrial use only | Choose for cost-sensitive non-automotive designs where AEC-Q101 is not mandated |
Compared with SMBJ58A-E3/52, P4SMA56AHE3/61 offers tighter board space fit and automotive qualification but lower thermal derating headroom; versus 1.5SMC56A, it provides identical electrical performance with certified AEC-Q101 reliability for safety-critical vehicle subsystems.
Availability
P4SMA56AHE3/61 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and consumer USB power delivery systems requiring stable component supply with full traceability and lifecycle management.
Supply support for P4SMA56AHE3/61 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 application-specific performance.
The P4SMA Series targets surface-mount transient suppression in automotive, industrial, and communications equipment, designed to replace older axial-leaded TVS devices with AEC-Q101-compliant, automated-assembly-ready solutions.
FAQ
What is the clamping voltage of the P4SMA56AHE3/61 at its rated peak pulse current?
The P4SMA56AHE3/61 has a maximum clamping voltage (VC) of 77.0 V at 5.2 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and ensures predictable overvoltage limiting during transient events. The P4SMA56AHE3/61 maintains this clamping performance across its full operating temperature range of −65 °C to +150 °C.
Is the P4SMA56AHE3/61 suitable for automotive applications?
Yes, the P4SMA56AHE3/61 is AEC-Q101 qualified and explicitly designated for automotive use with the "HE3" suffix. It undergoes stress testing including temperature cycling, humidity bias, and mechanical shock per AEC-Q101 Rev D. The P4SMA56AHE3/61 is commonly deployed in body control modules, infotainment power supplies, and ADAS camera interfaces where transient immunity and long-term reliability are critical.
What is the standoff voltage rating for the P4SMA56AHE3/61?
The standoff voltage (VWM) for the P4SMA56AHE3/61 is 47.8 V - the maximum DC or continuous reverse voltage that can be applied without exceeding 1.0 µA leakage current. This rating ensures the P4SMA56AHE3/61 remains non-conductive during normal 12 V or 24 V automotive system operation while providing margin below its 53.2–58.8 V breakdown range.
Does the P4SMA56AHE3/61 have a bidirectional variant?
No, the P4SMA56AHE3/61 is strictly unidirectional. Bidirectional variants in the P4SMA family use the "CA" suffix (e.g., P4SMA56CA). The "A" in P4SMA56AHE3/61 denotes unidirectional configuration, with polarity marked by a cathode band. Using a unidirectional part like the P4SMA56AHE3/61 in AC-coupled or bidirectional signal paths would result in forward conduction during negative half-cycles and is not recommended.
What packaging and reel options are available for the P4SMA56AHE3/61?
The P4SMA56AHE3/61 ships in 7-inch plastic tape-and-reel format with 1800 units per reel (ordering code suffix "/61"). It uses industry-standard EIA-481-compliant carrier tape, compatible with high-speed pick-and-place equipment. The device is RoHS-compliant, halogen-free, and rated MSL Level 1, allowing direct placement without baking. Traceable lot codes and full Vishay material documentation accompany each reel of P4SMA56AHE3/61.
P4SMA56AHE3/61 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA56AHE3/61 FAQ
1.How can I place an order for P4SMA56AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA56AHE3/61 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 P4SMA56AHE3/61 reliable?
The price and inventory of P4SMA56AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA56AHE3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA56AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA56AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA56AHE3/61?
P4SMA56AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA56AHE3/61 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 P4SMA56AHE3/61?
For technical support, including P4SMA56AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA56AHE3/61 requirements.
6.How does Aetrix verify that P4SMA56AHE3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA56AHE3/61 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 P4SMA56AHE3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA56AHE3/61?
All P4SMA56AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA56AHE3/61, 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 P4SMA56AHE3/61 part is unused and in its original packaging.
Return procedure for P4SMA56AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA56AHE3/61 Tags
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