My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4KE47CA-E3/54
- Part No.:
- P4KE47CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE47CA-E3/54.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,700
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4KE47CA-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on signal or power lines. It features 400 W peak pulse power (10/1000 μs), 40.2 V standoff voltage (VWM), 44.7–49.4 V breakdown voltage (VBR at 1 mA), and clamps to ≤64.8 V at 6.2 A peak pulse current - used in automotive sensor line protection and industrial I/O interface surge suppression.
For engineers reviewing the P4KE47CA-E3/54 datasheet, P4KE47CA-E3/54 pinout, P4KE47CA-E3/54 application, or P4KE47CA-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-41 leaded package compatibility with through-hole PCB layouts, AEC-Q101 qualification for automotive use, and verified 175 °C junction temperature rating under transient stress.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche breakdown in both polarities, enabling robust ESD and surge immunity without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance, critical for repeatable clamping performance during repetitive transients.
The P4KE47CA-E3/54 delivers fast response time (<1 ns) and low leakage (<1 μA at 40.2 V), supporting reliable protection of sensitive analog and digital inputs. Thermal design is enabled by RθJL = 66 °C/W and TJ(max) = 175 °C, allowing operation in high-ambient environments when mounted on standard copper land patterns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 40.2 V - maximum continuous reverse working voltage before conduction begins; defines safe operating margin below clamping threshold |
| VBR (min/max) | 44.7 V / 49.4 V at 1 mA - precise bidirectional breakdown range ensuring consistent clamping onset across production lots |
| VC @ IPPM | ≤64.8 V at 6.2 A - clamped voltage during 400 W 10/1000 μs surge; determines protected circuit's maximum transient exposure |
| PPPM | 400 W - peak pulse power handling per single transient; supports IEC 61000-4-5 Level 3/4 surge immunity testing |
| IFSM | Not applicable - bidirectional device has no forward surge rating; unidirectional variants only specify 40 A 8.3 ms half-sine |
| TJ(max) | 175 °C - maximum junction temperature; enables operation in under-hood automotive or industrial control cabinet environments |
| RθJL | 66 °C/W - thermal resistance from junction to lead; informs heatsinking requirements for sustained pulse repetition |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, molded epoxy body with matte tin-plated leads; RoHS-compliant, UL 94 V-0 rated; 0.350 g unit weight; lead length ≥10 mm for thermal testing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (unmarked) | Bidirectional terminal pair | No polarity marking required; symmetric conduction in either direction enables single-component placement across AC or floating lines |
| Leads (anode & cathode) | Current path terminals | Matte tin plating meets J-STD-002 solderability; 275 °C max solder dip for 10 s ensures assembly robustness |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures ±5 % VBR tolerance and long-term stability under thermal cycling and humidity stress |
| 400 W peak pulse power (10/1000 μs) | Validated for IEC 61000-4-5 combination wave surges up to 2 A (line-to-earth) without degradation |
| AEC-Q101 qualified | Qualified for automotive applications including engine control modules, body electronics, and ADAS sensor interfaces |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on downstream ICs compared to higher-ratio suppressors like MOVs or polymer-based TVS |
| DO-41 mechanical compatibility | Direct replacement for legacy P6KE and 1.5KE series in existing through-hole designs; no footprint change required |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) 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 transients before reaching signal conditioning circuitry. Use Value: Maintains signal integrity during 100 V/50 ms load dump events while limiting voltage seen by 5 V rail-connected transceivers to ≤64.8 V. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary transient suppressor on each channel input, mounted adjacent to terminal block to minimize inductance in clamping path. Use Value: Withstands repeated 400 W surges at 0.01 % duty cycle, enabling >100,000 surge events over product lifetime without parameter drift. |
| Consumer Power Adapter Interface | Telecom Line Card Surge Protection |
Use Scenario: Input-stage protection for AC/DC adapters and USB-C PD power bricks exposed to mains-borne surges and ESD. IC Role / Device Role / Timing Role: First-line defense between AC rectifier output and primary-side controller IC, absorbing energy before bulk capacitor. Use Value: Clamps 1 kV/0.5 J surges within <1 ns, preventing latch-up or gate oxide damage in PWM controllers operating at 40–100 kHz. |
Use Scenario: Secondary-side protection on Ethernet PHY interfaces and analog telephone line cards subject to lightning-induced longitudinal surges. IC Role / Device Role / Timing Role: Bidirectional clamp across differential pairs (e.g., tip/ring) to equalize voltage swing and prevent common-mode breakdown. Use Value: Symmetric VBR ensures identical clamping in both directions, critical for balanced signaling integrity in T1/E1 and xDSL applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ43CA | Surface-mount SMB package (3.5 × 4.6 mm), 600 W PPPM, VWM = 36.8 V, VC = 69.4 V @ 8.7 A | Requires PCB redesign for SMT layout; better suited for space-constrained consumer electronics vs. through-hole industrial modules | Select when board real estate is limited and automated assembly is preferred; verify thermal pad layout for 600 W pulse dissipation |
| 1.5KE47CA | Same DO-41 package, higher PPPM = 1500 W, VWM = 40.2 V, VC = 77.0 V @ 19.5 A, larger junction area | Higher clamping voltage reduces system-level margin; used where surge energy exceeds 400 W but footprint must remain unchanged | Choose for legacy DO-41 designs needing enhanced surge rating without mechanical rework; accept trade-off in clamping voltage headroom |
Compared with SMBJ43CA and 1.5KE47CA, the P4KE47CA-E3/54 offers optimal balance of proven through-hole reliability, AEC-Q101 qualification, and precise 400 W clamping for cost-sensitive automotive and industrial applications where PCB layout stability is prioritized over miniaturization or extreme energy handling.
Availability
P4KE47CA-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line card protection requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P4KE47CA-E3/54 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 P4KE47CA-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, standardized transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the standoff voltage (VWM) of the P4KE47CA-E3/54?
The P4KE47CA-E3/54 has a maximum working standoff voltage (VWM) of 40.2 V. This value represents the highest continuous reverse voltage the device can withstand without entering avalanche conduction. It is derived from the minimum breakdown voltage (44.7 V) with a standard 10 % margin, ensuring reliable blocking during normal operation while maintaining sufficient headroom before clamping activation.
Is the P4KE47CA-E3/54 suitable for automotive applications?
Yes, the P4KE47CA-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use. Its 175 °C maximum junction temperature, glass-passivated junction, and bidirectional clamping behavior make it appropriate for protecting CAN, LIN, and sensor interfaces in engine control units, body control modules, and ADAS subsystems subjected to ISO 7637-2 and ISO 16750-2 stress conditions.
Does the P4KE47CA-E3/54 have polarity markings?
No, the P4KE47CA-E3/54 does not feature polarity markings because it is a bidirectional TVS diode. Unlike unidirectional types (e.g., P4KE47A), which use a cathode band, the CA suffix indicates symmetrical construction - both leads function identically, enabling placement without orientation concerns on AC-coupled or floating signal lines.
What is the clamping voltage of the P4KE47CA-E3/54 at its rated peak pulse current?
The P4KE47CA-E3/54 clamps to a maximum of 64.8 V at its specified peak pulse current (IPPM) of 6.2 A, measured using the standard 10/1000 μs waveform. This clamping voltage defines the upper voltage limit imposed on protected circuitry during surge events and is critical for ensuring downstream components (e.g., 5 V or 3.3 V ICs) remain within absolute maximum ratings.
Can the P4KE47CA-E3/54 replace older P6KE47CA devices?
Yes, the P4KE47CA-E3/54 is a direct functional and mechanical replacement for P6KE47CA in most applications. Both share DO-41 packaging, identical VWM (40.2 V) and VBR ranges, and AEC-Q101 qualification. The P4KE series offers improved consistency in clamping performance and tighter VBR tolerance, making it suitable for drop-in upgrades without PCB or schematic changes.
P4KE47CA-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- 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:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KE47CA-E3/54 FAQ
1.How can I place an order for P4KE47CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE47CA-E3/54 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 P4KE47CA-E3/54 reliable?
The price and inventory of P4KE47CA-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE47CA-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE47CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE47CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE47CA-E3/54?
P4KE47CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE47CA-E3/54 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 P4KE47CA-E3/54?
For technical support, including P4KE47CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE47CA-E3/54 requirements.
6.How does Aetrix verify that P4KE47CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE47CA-E3/54 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 P4KE47CA-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE47CA-E3/54?
All P4KE47CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE47CA-E3/54, 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 P4KE47CA-E3/54 part is unused and in its original packaging.
Return procedure for P4KE47CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE47CA-E3/54 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 …
