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Vishay General Semiconductor - Diodes Division P4SMA47AHE3/61
- Part No.:
- P4SMA47AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA47AHE3/61.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA47AHE3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P4SMA series, designed for clamping voltage transients on power and signal lines. It features a 47 V breakdown voltage (VBR = 44.7–49.4 V at 1 mA), 40.2 V standoff voltage (VWM), 64.8 V maximum clamping voltage (VC) at 6.2 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the P4SMA47AHE3/61 datasheet, P4SMA47AHE3/61 pinout, P4SMA47AHE3/61 application, or P4SMA47AHE3/61 equivalent, this AEC-Q101 qualified device offers verified transient suppression performance, SMA (DO-214AC) package compatibility, low incremental surge resistance, and stable thermal derating up to 150 °C junction temperature - critical for automotive-grade ESD and load-dump protection design validation.
Technical Context
The P4SMA47AHE3/61 operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology for fast response (<1 ns) and repeatable clamping under repetitive 10/1000 µs surges. Its 120 °C/W junction-to-ambient thermal resistance and 30 °C/W junction-to-lead resistance support reliable operation on standard 0.2" × 0.2" copper pads without heatsinking.
It meets UL 497B recognition (QVGQ2) and JESD201 Class 2 whisker resistance requirements, with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. The cathode band denotes polarity, and its MSL Level 1 rating permits reflow up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 44.7 V / 49.4 V at 1 mA - defines precise avalanche onset range for predictable clamping threshold |
| VWM | 40.2 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 64.8 V at 6.2 A - clamped voltage during 400 W transient, limiting downstream IC stress |
| PPPM | 400 W (10/1000 µs) - peak surge energy handling capacity for automotive load-dump events |
| IFSM | 40 A (8.3 ms half-sine) - forward surge capability for inadvertent polarity reversal scenarios |
| TJ max | 150 °C - maximum junction temperature enabling use in under-hood automotive environments |
| RθJA | 120 °C/W - thermal resistance defining self-heating under steady-state 3.3 W dissipation |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads; cathode indicated by band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to protected line ground or low-side reference; enables unidirectional clamping to ground |
| Cathode | Current exit terminal in forward bias; marked with band | Connected to supply rail or high-side node; defines clamping direction and polarity-sensitive placement |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| 400 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 surge events without degradation |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<1 µA at VWM) over 15-year field life |
| MSL Level 1 (260 °C) | Enables single-reflow assembly without moisture sensitivity concerns or baking requirements |
| UL 497B recognized (QVGQ2) | Meets safety standards for telecom and industrial signal-line protectors requiring third-party certification |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from battery transients and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp induced spikes before reaching sensitive input pins. Use Value: Limits clamping voltage to 64.8 V while absorbing 400 W surges, preventing latch-up or gate oxide damage in 5 V/12 V sensor front-ends. |
Use Scenario: Safeguarding PLC digital input modules against inductive kickback from solenoid valves and relay coils in factory automation systems. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminals to suppress 100 V–400 V switching transients within <1 ns response time. Use Value: Maintains 40.2 V working voltage margin while delivering 6.2 A peak pulse current handling - compatible with 24 V DC industrial logic levels. |
| Telecom Line Protection | Consumer Power Supply Input |
Use Scenario: Shielding Ethernet PHY power rails and auxiliary bias supplies in PoE-powered switches and base stations from lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level TVS on 3.3 V/5 V bias lines, coordinated with secondary GDT or MOV stages for staged energy diversion. Use Value: Provides 44.7–49.4 V controlled breakdown and 64.8 V clamping to preserve PoE controller IC integrity during IEC 61000-4-5 2 kV tests. |
Use Scenario: Input-stage transient suppression on AC-DC adapter primary-side rectifier outputs and DC-DC converter inputs in smart home hubs and displays. IC Role / Device Role / Timing Role: Fast-acting unidirectional clamp between bulk capacitor and switching regulator, diverting surge energy to ground. Use Value: Delivers 400 W pulse rating with 120 °C/W thermal resistance - enabling compact layout without thermal vias or oversized pads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ47A-E3/61 | Same VBR (44.7–49.4 V), but lower PPPM = 400 W only at TA ≤ 25 °C; RθJA = 140 °C/W vs. 120 °C/W | Limited to commercial-temperature environments; not AEC-Q101 qualified | Select when automotive qualification is unnecessary and board space allows larger thermal pad area |
| 1.5SMC47A | Higher PPPM = 1500 W, DO-214AB package (larger footprint), VC = 77 V at 19.3 A | Used where higher surge margin is required (e.g., mains-connected equipment); incompatible SMA PCB layout | Choose for industrial power supplies needing >1 kW surge handling, accepting larger package and higher clamping voltage |
Compared with SMAJ47A-E3/61 and 1.5SMC47A, the P4SMA47AHE3/61 uniquely combines AEC-Q101 qualification, optimized thermal resistance for dense layouts, and precise 47 V clamping - making it the preferred choice for automotive and space-constrained industrial designs requiring certified reliability.
Availability
P4SMA47AHE3/61 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC I/O modules, telecom power rail hardening, and consumer power supply input stages requiring stable component supply, long-term lifecycle continuity, and AEC-Q101 compliance.
Supply support for P4SMA47AHE3/61 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, precision, and application-specific optimization.
The P4SMA series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where consistent clamping performance, AEC-Q101 validation, and surface-mount manufacturability are essential.
FAQ
What is the clamping voltage of the P4SMA47AHE3/61 under peak pulse conditions?
The P4SMA47AHE3/61 has a maximum clamping voltage (VC) of 64.8 V at 6.2 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per standard test conditions and ensures downstream circuitry remains below safe voltage thresholds during transient events. The P4SMA47AHE3/61 maintains this clamping performance across its specified operating temperature range and after repeated surge exposure.
Is the P4SMA47AHE3/61 qualified for automotive applications?
Yes, the P4SMA47AHE3/61 is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix "HE3". This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and surge endurance - validating its suitability for under-hood and cabin ECU applications. The P4SMA47AHE3/61 also meets UL 497B recognition and JESD201 Class 2 whisker resistance requirements.
What is the standoff voltage rating for the P4SMA47AHE3/61?
The P4SMA47AHE3/61 has a maximum working standoff voltage (VWM) of 40.2 V, meaning it remains in high-impedance state with leakage current ≤1 µA up to this reverse voltage. This rating provides a 6.8 V margin below the minimum breakdown voltage (44.7 V), ensuring reliable blocking during normal operation while allowing rapid transition to conduction during overvoltage events. The P4SMA47AHE3/61 sustains this VWM rating across its full -65 °C to +150 °C junction temperature range.
Does the P4SMA47AHE3/61 have a defined polarity marking?
Yes, the P4SMA47AHE3/61 is a unidirectional TVS diode with a visible cathode band on the SMA (DO-214AC) package body. This band identifies the cathode terminal, which must be connected toward the higher-potential side (e.g., supply rail) for proper clamping to ground. The anode is the unmarked end and connects to ground or return path. Polarity misplacement renders the P4SMA47AHE3/61 ineffective for transient suppression.
What is the thermal resistance of the P4SMA47AHE3/61, and how does it affect layout?
The P4SMA47AHE3/61 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 directly determines allowable power dissipation: at 25 °C ambient, the 3.3 W steady-state rating yields ~400 °C rise - confirming that the P4SMA47AHE3/61 relies on short-duration pulse operation rather than continuous dissipation. Layout must adhere to the recommended pad dimensions to achieve rated thermal performance.
P4SMA47AHE3/61 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):
- 40.2V
- Voltage - Breakdown (Min):
- 44.7V
- Voltage - Clamping (Max) @ Ipp:
- 64.8V
- Current - Peak Pulse (10/1000µs):
- 6.2A
- 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)
P4SMA47AHE3/61 FAQ
1.How can I place an order for P4SMA47AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA47AHE3/61 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 P4SMA47AHE3/61 reliable?
The price and inventory of P4SMA47AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA47AHE3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA47AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA47AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA47AHE3/61?
P4SMA47AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA47AHE3/61 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 P4SMA47AHE3/61?
For technical support, including P4SMA47AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA47AHE3/61 requirements.
6.How does Aetrix verify that P4SMA47AHE3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA47AHE3/61 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 P4SMA47AHE3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA47AHE3/61?
All P4SMA47AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA47AHE3/61, 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 P4SMA47AHE3/61 part is unused and in its original packaging.
Return procedure for P4SMA47AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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