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Vishay General Semiconductor - Diodes Division P4SMA47CAHE3/61
- Part No.:
- P4SMA47CAHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA47CAHE3/61.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,209
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Product details
Overview
P4SMA47CAHE3/61 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on signal and power lines. It features a 47 V breakdown voltage (VBR min/max = 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.
For engineers reviewing the P4SMA47CAHE3/61 datasheet, P4SMA47CAHE3/61 pinout, P4SMA47CAHE3/61 application, or P4SMA47CAHE3/61 equivalent, this AEC-Q101 qualified, RoHS-compliant bidirectional TVS delivers robust ESD and surge protection for automotive sensor interfaces, industrial I/O lines, and telecom data ports where low-leakage (<1 µA at VWM) and fast response (<1 ns) are critical.
Technical Context
The P4SMA47CAHE3/61 operates as a symmetrical avalanche-clamping device with identical forward and reverse characteristics due to its bidirectional construction. Its glass-passivated junction enables stable breakdown behavior and low incremental surge resistance, supporting repetitive transient suppression up to 0.01% duty cycle.
Thermally, it exhibits RθJA = 120 °C/W and RθJL = 30 °C/W, with a maximum junction temperature of +150 °C and operation down to –65 °C. It meets J-STD-020 MSL Level 1 and is rated for 260 °C lead-free reflow peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 44.7 V / 49.4 V at 1 mA - defines precise avalanche initiation threshold for reliable clamping onset |
| VWM | 40.2 V - maximum continuous working voltage before leakage exceeds 1 µA, ensuring no interference during normal operation |
| VC @ IPPM | 64.8 V at 6.2 A - clamped voltage under 10/1000 µs surge, limiting downstream IC stress to safe levels |
| PPPM | 400 W - peak pulse power handling capability, enabling protection against IEC 61000-4-5 Level 4 surges |
| IPPM | 6.2 A - maximum non-repetitive surge current supported with 10/1000 µs waveform |
| Leakage (ID) | <1 µA at VWM - negligible standby current, preserving signal integrity and battery life in low-power systems |
| TJ range | –65 °C to +150 °C - wide operating temperature window suitable for under-hood automotive and industrial environments |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Bidirectional construction means no polarity marking; terminals are symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (either direction) | One terminal of symmetrical PN junction; accepts surge current regardless of polarity |
| Cathode | Transient current exit (either direction) | Second terminal of symmetrical PN junction; completes bidirectional conduction path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| 400 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges (1.2/50 µs voltage, 8/20 µs current) without degradation |
| Glass passivated junction | Ensures stable VBR tolerance (±5%), low leakage, and long-term parametric stability over lifetime |
| MSL Level 1 rating | Zero floor life limitation; safe for standard SMT reflow without baking, reducing manufacturing overhead |
| Low clamping ratio (VC/VBR) | 1.45 - tight ratio minimizes overvoltage exposure to protected ICs during transient events |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and MEMS pressure/temperature sensors from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy before reaching signal conditioning circuitry. Use Value: Maintains <40.2 V DC bias integrity while clamping 100 V transients to ≤64.8 V, preventing latch-up in 5 V rail-connected ASICs. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Parallel-connected TVS across input terminals to clamp induced transients from motor drives or relay switching. Use Value: Sub-µA leakage avoids measurement error in high-impedance sensing paths; 6.2 A IPPM handles typical 2 kV/0.5 Ω surge generator outputs. |
| Telecom Data Line Protection | Consumer USB Port ESD |
Use Scenario: Shielding RS-485 transceivers in base station backhaul links from lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Primary surge suppression stage ahead of secondary GDT or polymer PTC, absorbing bulk energy in <1 ns. Use Value: 400 W rating sustains multiple 10/1000 µs surges without derating; bidirectional symmetry eliminates polarity concerns in differential signaling. |
Use Scenario: Adding IEC 61000-4-2 Level 4 (±15 kV contact) ESD protection to USB 2.0 D+/D– lines in portable media players. IC Role / Device Role / Timing Role: Low-capacitance TVS (typ. 100 pF at 0 V) placed adjacent to connector to minimize signal distortion. Use Value: Clamps ±15 kV ESD strikes to <65 V within nanoseconds, preventing gate oxide damage to USB PHY transceivers while maintaining 480 Mbps signal fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ47CA | Higher 600 W PPPM, larger SMB (DO-214AA) package, 10% higher VC (71.4 V) | Better suited for higher-energy surges but requires larger PCB area and has slower thermal response | Select when system-level surge tests exceed 400 W and board space allows SMB footprint |
| 1.5SMC47CA | Same 47 V rating, 1500 W PPPM, DO-214AB package, higher VC (77 V), higher leakage (5 µA) | Targeted at primary-level AC/DC input protection rather than signal-line clamping | Prefer for front-end power rail protection where higher clamping voltage is acceptable and layout accommodates larger body |
Compared with SMBJ47CA and 1.5SMC47CA, the P4SMA47CAHE3/61 offers optimal balance of compact SMA footprint, AEC-Q101 compliance, and precise 40.2 V standoff-making it ideal for space-constrained, automotive-grade signal line protection where strict VWM margin and low leakage are mandatory.
Availability
P4SMA47CAHE3/61 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC analog inputs, and telecom data line protection requiring stable component supply, AEC-Q101 qualification, and consistent 400 W surge performance.
Supply support for P4SMA47CAHE3/61 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series is engineered for high-reliability transient suppression in automotive, industrial, and telecom systems-delivering consistent clamping performance, AEC-Q101 validation, and surface-mount scalability across 6.8 V to 540 V standoff voltages.
FAQ
What does the "CA" suffix indicate in P4SMA47CAHE3/61?
The "CA" suffix in P4SMA47CAHE3/61 denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression in both polarities. Unlike unidirectional variants (e.g., P4SMA47A), the P4SMA47CAHE3/61 has no cathode marking and functions identically whether voltage is applied anode-to-cathode or cathode-to-anode-critical for protecting AC-coupled or differential signal lines where polarity is undefined.
Is P4SMA47CAHE3/61 suitable for automotive applications?
Yes, P4SMA47CAHE3/61 is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix. It undergoes stress testing including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 requirements, making it appropriate for under-hood and cabin applications such as engine control unit sensor interfaces, infotainment data lines, and ADAS camera links where reliability under thermal and electrical stress is mandatory.
What is the maximum clamping voltage of P4SMA47CAHE3/61 under surge conditions?
The maximum clamping voltage (VC) of P4SMA47CAHE3/61 is 64.8 V at 6.2 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value represents the upper limit of voltage seen by downstream circuitry during a standardized surge event, ensuring protected ICs experience no more than 64.8 V-even when subjected to full-rated 400 W transient energy.
How does the P4SMA47CAHE3/61 compare to unidirectional P4SMA47A in terms of leakage current?
P4SMA47CAHE3/61 specifies maximum reverse leakage current (ID) of 1 µA at its 40.2 V standoff voltage (VWM), identical to the unidirectional P4SMA47A. Both share the same glass-passivated junction process and thermal design, so leakage performance is equivalent-enabling direct substitution in low-power applications where minimal standby current is essential, provided polarity constraints allow bidirectional operation.
What packaging and reel options are available for P4SMA47CAHE3/61?
P4SMA47CAHE3/61 is supplied in 7-inch plastic tape-and-reel format with a base quantity of 1800 units per reel (ordering code "/61"). The "HE3" suffix confirms RoHS-compliance and AEC-Q101 qualification, while the "61" denotes the standard 7" reel size-compatible with high-speed pick-and-place equipment and supporting automated SMT assembly without baking requirements due to its J-STD-020 MSL Level 1 rating.
P4SMA47CAHE3/61 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:
- -
- Bidirectional Channels:
- 1
- 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)
P4SMA47CAHE3/61 FAQ
1.How can I place an order for P4SMA47CAHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA47CAHE3/61 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 P4SMA47CAHE3/61 reliable?
The price and inventory of P4SMA47CAHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA47CAHE3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA47CAHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA47CAHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA47CAHE3/61?
P4SMA47CAHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA47CAHE3/61 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 P4SMA47CAHE3/61?
For technical support, including P4SMA47CAHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA47CAHE3/61 requirements.
6.How does Aetrix verify that P4SMA47CAHE3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA47CAHE3/61 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 P4SMA47CAHE3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA47CAHE3/61?
All P4SMA47CAHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA47CAHE3/61, 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 P4SMA47CAHE3/61 part is unused and in its original packaging.
Return procedure for P4SMA47CAHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA47CAHE3/61 Tags
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