My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4KE540A-E3/54
- Part No.:
- P4KE540A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE540A-E3/54.pdf
- Description:
- TVS DIODE 459VWM 740VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,502
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4KE540A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for high-energy surge protection with 400 W peak pulse power (10/1000 μs), 513–567 V breakdown voltage (VBR), and 740 V maximum clamping voltage (VC) at 0.54 A peak pulse current. It protects sensitive MOSFETs and ICs against inductive switching transients in industrial power supplies.
For engineers reviewing the P4KE540A-E3/54 datasheet, P4KE540A-E3/54 pinout, P4KE540A-E3/54 application, or P4KE540A-E3/54 equivalent, key selection criteria include standoff voltage (459 V), clamping ratio (VC/VBR ≈ 1.31), AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and RoHS-compliant matte tin plating per J-STD-002.
Technical Context
This TVS diode uses a glass passivated silicon junction to achieve fast response time (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD and lightning-induced surges. Its unidirectional polarity-marked by cathode band-ensures correct orientation in DC-biased circuits such as input stages of AC/DC adapters and motor drive front-ends.
The device operates across -55 °C to +175 °C junction temperature range and delivers 1.5 W steady-state power dissipation on infinite heatsink at 75 °C lead temperature. Derating follows Fig. 2 and Fig. 5 in the datasheet, with thermal resistance junction-to-lead (RθJL) at 66 °C/W confirming suitability for leaded through-hole mounting without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 513 V / 567 V at 1.0 mA test current - defines reliable conduction onset under surge conditions |
| VWM | 459 V - maximum continuous reverse working voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 740 V at 0.54 A - clamping voltage limiting transient stress on downstream components |
| PPPM | 400 W (10/1000 μs waveform) - peak surge energy handling capacity per single event |
| TJ max. | +175 °C - enables operation in high-temperature environments like engine control units |
| RθJA | 100 °C/W - thermal performance baseline for PCB layout and heatsinking decisions |
| IFSM | Not applicable - unidirectional only; no forward surge rating specified for this variant |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, molded epoxy body with glass passivated chip. Matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 1A whisker resistance requirements. Overall length 25.4 mm min., lead diameter 0.71–0.86 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to circuit ground or lower-potential node in unidirectional clamp configuration |
| Cathode (banded end) | Reverse-biased surge conduction terminal | Connected to protected line (e.g., DC bus); conducts when transient exceeds VWM |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-earth) in properly designed interfaces |
| AEC-Q101 qualified (E3 suffix) | Validated for automotive under-hood applications including engine management and battery systems |
| UL 94 V-0 compliant molding compound | Meets flammability safety requirements for enclosed industrial equipment |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes overvoltage stress on protected MOSFET gate oxide or IC input structures |
Applications
| Industrial Motor Drives | Automotive Power Distribution Units |
|---|---|
|
Use Scenario: Protection of IGBT gate drivers against turn-off voltage spikes during high-current switching in 400 V DC bus inverters. IC Role / Device Role / Timing Role: Unidirectional TVS placed between gate and emitter to clamp negative-going transients below -20 V. Use Value: With VWM = 459 V and VC = 740 V, it avoids interference with normal 15 V gate drive while suppressing >1 kV spikes. |
Use Scenario: Surge suppression on 12 V/24 V battery feed lines entering junction boxes exposed to load dump events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail upstream of DC-DC converters and microcontrollers. Use Value: Handles 400 W pulses without degradation, meeting ISO 7637-2 Pulse 5a requirements for commercial vehicle electronics. |
| Telecom Power Rectifiers | Renewable Energy Inverters |
|
Use Scenario: Input stage protection for AC/DC front-ends in base station power supplies subjected to lightning-induced surges on AC mains. IC Role / Device Role / Timing Role: Secondary-level TVS after MOVs, providing precise clamping where fast response is critical. Use Value: Sub-1 ns response ensures clamping occurs before downstream rectifier bridge or controller IC sustains damage. |
Use Scenario: DC link protection in solar string inverters where PV array transients couple into 600–1000 V DC bus lines. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across DC bus capacitors to limit overvoltage during rapid disconnection events. Use Value: VWM = 459 V allows use in segmented DC bus topologies; 175 °C TJmax supports operation near heat-generating IGBT modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ540A | Surface-mount SMB package (vs. through-hole DO-41); same VBR range (513–567 V), 600 W PPPM | Requires PCB rework for SMT assembly; better high-frequency surge response due to lower parasitic inductance | Select when board space is constrained and automated assembly is preferred over manual through-hole insertion |
| 1.5KE540A | Same DO-41 package but higher PPPM = 1500 W; VBR = 513–567 V, VC = 740 V, VWM = 459 V | Higher energy handling suits applications with repeated surge exposure (e.g., utility metering), but larger thermal mass delays response | Choose when system-level testing reveals insufficient margin with 400 W rating, especially under multi-pulse stress |
Compared with SMBJ540A and 1.5KE540A, the P4KE540A-E3/54 offers optimal balance of cost, proven reliability in legacy through-hole designs, and sufficient surge rating for single-event protection in industrial controls-without requiring layout changes or derating for thermal accumulation.
Availability
P4KE540A-E3/54 is available at Aetrix Electronics and suitable for industrial motor drives, automotive power distribution units, and telecom rectifier systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P4KE540A-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 P4KE540A-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust transient suppression in harsh environments including automotive, industrial, and renewable energy systems.
FAQ
What is the maximum clamping voltage of the P4KE540A-E3/54 under rated surge conditions?
The P4KE540A-E3/54 has a maximum clamping voltage (VC) of 740 V at its rated peak pulse current (IPPM) of 0.54 A using a 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88365 and defines the upper voltage limit imposed on protected circuitry during transient events. The P4KE540A-E3/54 maintains this clamping performance across its operating temperature range.
Is the P4KE540A-E3/54 suitable for automotive applications?
Yes, the P4KE540A-E3/54 is AEC-Q101 qualified per Note (1) on page 3 of the Vishay datasheet 88365. Its construction-including glass passivated junction, UL 94 V-0 molding compound, and JESD 201 Class 1A whisker-resistant leads-meets automotive reliability requirements. The P4KE540A-E3/54 is commonly used in battery management and power distribution modules where 459 V standoff and 740 V clamping are required.
What does the "E3/54" suffix indicate in P4KE540A-E3/54?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads qualified to JESD 201 Class 1A whisker testing. The "/54" indicates packaging in 13-inch paper tape and reel with a base quantity of 5500 units, per the Ordering Information table on page 3 of the Vishay datasheet 88365. The P4KE540A-E3/54 is not AEC-Q101 qualified unless marked "HE3".
How does the thermal resistance of the P4KE540A-E3/54 affect PCB layout?
The P4KE540A-E3/54 has RθJA = 100 °C/W and RθJL = 66 °C/W, meaning its junction temperature rise depends heavily on lead-to-PCB copper area and ambient airflow. For reliable operation at full 400 W surge rating, PCB layout must provide ≥25 mm² of 2-oz copper connected to each lead. The P4KE540A-E3/54 should avoid placement near heat sources and allow ≥5 mm clearance to adjacent components.
Can the P4KE540A-E3/54 be used in bidirectional configurations?
No-the P4KE540A-E3/54 is a unidirectional TVS diode, identified by its cathode band marking. Bidirectional variants in the same family use the "CA" suffix (e.g., P4KE440CA). Using the P4KE540A-E3/54 in AC-coupled or floating applications would result in forward conduction during half-cycles, causing failure. Always verify polarity alignment before integrating the P4KE540A-E3/54 into schematics.
P4KE540A-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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 459V
- Voltage - Breakdown (Min):
- 513V
- Voltage - Clamping (Max) @ Ipp:
- 740V
- Current - Peak Pulse (10/1000µs):
- 540mA
- 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)
P4KE540A-E3/54 FAQ
1.How can I place an order for P4KE540A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE540A-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 P4KE540A-E3/54 reliable?
The price and inventory of P4KE540A-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 P4KE540A-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE540A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE540A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE540A-E3/54?
P4KE540A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE540A-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 P4KE540A-E3/54?
For technical support, including P4KE540A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE540A-E3/54 requirements.
6.How does Aetrix verify that P4KE540A-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE540A-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 P4KE540A-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE540A-E3/54?
All P4KE540A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE540A-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 P4KE540A-E3/54 part is unused and in its original packaging.
Return procedure for P4KE540A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE540A-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 …
