My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4SMA47CA-E3/61
- Part No.:
- P4SMA47CA-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA47CA-E3/61.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:1,666
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4SMA47CA-E3/61 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for clamping voltage transients on signal and power lines. It features a 47 V breakdown voltage (VBR = 44.7–49.4 V at 1 mA), 400 W peak pulse power (10/1000 µs), 64.8 V maximum clamping voltage at rated IPPM, and operates across -65 °C to +150 °C junction temperature range. It protects MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P4SMA47CA-E3/61 datasheet, P4SMA47CA-E3/61 pinout, P4SMA47CA-E3/61 application, or P4SMA47CA-E3/61 equivalent, this device is selected for bidirectional surge protection where low-profile SMA (DO-214AC) mounting, AEC-Q101 qualification (via HE3/HM3 variants), and stable clamping under repetitive 0.01% duty cycle surges are required.
Technical Context
The P4SMA47CA-E3/61 implements an avalanche-based silicon junction structure with glass passivation for stable breakdown behavior and fast response (<1 ns). Its bidirectional symmetry ensures identical clamping in both polarities, eliminating polarity concerns in AC-coupled or floating signal paths.
It delivers 400 W peak pulse power per 10/1000 µs waveform up to 91 V, derating to 300 W above that threshold. Thermal resistance is 120 °C/W (junction-to-ambient) on standard 5.0 mm × 5.0 mm copper pads, supporting reliable operation without heatsinking in typical PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 44.7 V / 49.4 V at 1 mA - defines precise voltage threshold where avalanche conduction begins in either direction |
| VWM | 40.2 V - maximum continuous reverse working voltage before leakage exceeds 1 µA; sets safe operating margin below clamping |
| VC @ IPPM | 64.8 V - clamped voltage during 400 W transient, limiting downstream stress to ≤64.8 V regardless of surge amplitude |
| IPPM | 6.2 A - peak pulse current capability at 10/1000 µs waveform, directly calculable from PPPM/VC |
| PPPM | 400 W - standardized surge energy handling capacity, validated per REA-defined 10/1000 µs waveform |
| TJ max | +150 °C - enables use in under-hood automotive and high-temperature industrial environments without derating |
| Package | SMA (DO-214AC) - surface-mount package with 5.0 mm × 5.0 mm thermal pad footprint, MSL Level 1 compliant |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (positive half-cycle) | Conducts during positive overvoltage events; forms symmetrical path with cathode in bidirectional mode |
| Cathode | Transient current entry point (negative half-cycle) | Conducts during negative overvoltage events; paired with anode to enable full-wave clamping |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM performance in both directions eliminates need for polarity-aware layout |
| 400 W peak pulse rating | Handles IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 50 Ω source impedance without degradation |
| Glass passivated junction | Ensures long-term stability of breakdown voltage and leakage current under thermal cycling and humidity stress |
| MSL Level 1, 260 °C reflow | Compatible with standard lead-free SMT assembly processes without pre-baking or special handling |
| AEC-Q101 qualified option | HE3/HM3 variants available for automotive applications requiring validated reliability per JESD22-A108 |
Applications
| Automotive Sensor Signal Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential or single-ended signal lines to clamp transients before they reach sensitive input stages. Use Value: Limits voltage excursion to ≤64.8 V during 400 W surges, preventing latch-up or gate oxide damage in 3.3 V/5 V interface ICs. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against field-wiring induced surges and inductive kickback. IC Role / Device Role / Timing Role: Mounted at connector entry point to shunt transient energy away from optocoupler inputs and microcontroller GPIOs. Use Value: Withstands repetitive 0.01% duty cycle surges per IEC 61000-4-4, enabling robust operation in factory-floor electromagnetic environments. |
| Telecom Line Interface Protection | Consumer Power Adapter Secondary-Side Clamping |
Use Scenario: Shielding Ethernet PHY magnetics and RJ-45 port circuitry from lightning-induced surges and EFT bursts in PoE-powered devices. IC Role / Device Role / Timing Role: Placed across transformer secondary windings or data line pairs to suppress common-mode transients before isolation barrier. Use Value: Low incremental surge resistance minimizes clamping overshoot, preserving signal integrity on 100BASE-TX and 1000BASE-T links. |
Use Scenario: Clamping output rectifier node in flyback adapters to suppress switching spikes and improve safety compliance (UL 62368-1). IC Role / Device Role / Timing Role: Connected between secondary ground and output rail to absorb energy from transformer leakage inductance ringing. Use Value: 47 V standoff supports 36–42 V nominal 24 V adapter outputs while clamping spikes to ≤64.8 V, reducing capacitor stress and ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ47CA | Same VBR (44.7–49.4 V), higher PPPM = 600 W, larger SMB (DO-214AA) package (5.3 mm × 4.1 mm vs. SMA's 4.5 mm × 2.8 mm) | Better suited for higher-energy surges but requires larger board area and different pad layout | Select when system-level surge testing exceeds 400 W or when thermal margin must be increased via larger copper area |
| 1.5KE47CA | Same VBR and bidirectionality, through-hole DO-201 package, PPPM = 1500 W, higher IPPM = 21.7 A | Designed for legacy through-hole designs or high-reliability power supply inputs where manual assembly is acceptable | Choose only for through-hole prototyping or where automated SMT placement is unavailable; not drop-in compatible |
Compared with SMBJ47CA and 1.5KE47CA, the P4SMA47CA-E3/61 offers optimal balance of compact SMA footprint, 400 W surge rating, and commercial-grade RoHS compliance-making it ideal for space-constrained, high-volume SMT production where moderate surge immunity suffices.
Availability
P4SMA47CA-E3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter secondary-side clamping requiring stable component supply and consistent RoHS-compliant sourcing.
Supply support for P4SMA47CA-E3/61 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 surface-mount transient suppression in cost-sensitive, high-volume applications-delivering standardized TVS performance in the industry-standard SMA package with AEC-Q101 variants for automotive use.
FAQ
What is the clamping voltage of P4SMA47CA-E3/61 at its rated peak pulse current?
The P4SMA47CA-E3/61 has a maximum clamping voltage (VC) of 64.8 V at its rated peak pulse current (IPPM) of 6.2 A, measured under the standardized 10/1000 µs waveform. This value ensures downstream components experience no more than 64.8 V during a 400 W transient event, directly supporting design margin calculations for 3.3 V, 5 V, and 24 V systems.
Is P4SMA47CA-E3/61 suitable for automotive applications?
The base P4SMA47CA-E3/61 is RoHS-compliant and commercial-grade; however, Vishay offers AEC-Q101 qualified versions under ordering codes P4SMA47CAHE3_A and P4SMA47CAHM3_A. These variants undergo extended reliability testing per JESD22-A108 and are approved for automotive use-while the E3/61 variant itself is intended for industrial and consumer applications unless explicitly qualified.
How does the bidirectional design of P4SMA47CA-E3/61 affect PCB layout?
The P4SMA47CA-E3/61 has no polarity marking and identical electrical characteristics in both directions, allowing placement without orientation constraints. This simplifies layout by eliminating cathode/anode alignment checks and enables symmetric routing on differential lines or floating nodes-reducing design iteration time and assembly errors in high-density boards.
What is the thermal resistance of P4SMA47CA-E3/61, and how does it impact power dissipation?
The P4SMA47CA-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 5.0 mm × 5.0 mm copper pads. At its rated DC power dissipation of 3.3 W, this yields a ~396 °C temperature rise-so it relies on transient (not continuous) operation. For sustained surge duty, thermal design must ensure average power remains well below 3.3 W to avoid exceeding the +150 °C TJ limit.
Does P4SMA47CA-E3/61 meet moisture sensitivity level requirements for lead-free reflow?
Yes, the P4SMA47CA-E3/61 meets MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This means it can be stored indefinitely at ambient conditions and placed directly into standard lead-free reflow ovens without baking-reducing manufacturing overhead and eliminating moisture-related popcorning risks during assembly.
P4SMA47CA-E3/61 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:
- -
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA47CA-E3/61 FAQ
1.How can I place an order for P4SMA47CA-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA47CA-E3/61 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 P4SMA47CA-E3/61 reliable?
The price and inventory of P4SMA47CA-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA47CA-E3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA47CA-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA47CA-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA47CA-E3/61?
P4SMA47CA-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA47CA-E3/61 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 P4SMA47CA-E3/61?
For technical support, including P4SMA47CA-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA47CA-E3/61 requirements.
6.How does Aetrix verify that P4SMA47CA-E3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA47CA-E3/61 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 P4SMA47CA-E3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA47CA-E3/61?
All P4SMA47CA-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA47CA-E3/61, 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 P4SMA47CA-E3/61 part is unused and in its original packaging.
Return procedure for P4SMA47CA-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA47CA-E3/61 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
