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Vishay General Semiconductor - Diodes Division P4KE27-E3/54
- Part No.:
- P4KE27-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE27-E3/54.pdf
- Description:
- TVS DIODE 21.8VWM 39.1VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,869
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Product details
Overview
P4KE27-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for circuit-level ESD and surge protection. It features a 27 V breakdown voltage (VBR min/max = 25.7–28.4 V), 23.1 V stand-off voltage (VWM), 37.5 V clamping voltage at 10.7 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed on power rails and signal lines of automotive sensor modules.
For engineers reviewing the P4KE27-E3/54 datasheet, P4KE27-E3/54 pinout, P4KE27-E3/54 application, or P4KE27-E3/54 equivalent, key selection criteria include unidirectional polarity, DO-41 mechanical compatibility, 175 °C max junction temperature, AEC-Q101 qualification (via HE3 variant), and thermal resistance (RθJL = 66 °C/W) for board-level thermal design.
Technical Context
This TVS diode operates as a voltage-clamping overvoltage protection device, triggered when reverse voltage exceeds its 25.7–28.4 V breakdown range. Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, critical for suppressing transients from inductive switching and ESD events.
Rated for 400 W peak pulse power (10/1000 μs), it sustains 10.7 A peak pulse current while clamping to ≤37.5 V, and dissipates 1.5 W continuously at TL = 75 °C. The device is unidirectional with cathode marked by color band and meets JESD 22-B106 soldering requirements (275 °C, 10 s).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 25.7 V / 28.4 V - defines precise voltage threshold at which clamping begins under 1 mA test current |
| VWM | 23.1 V - maximum continuous reverse working voltage before leakage exceeds 1 μA |
| VC @ IPPM | 37.5 V at 10.7 A - clamped voltage during 400 W transient, limiting downstream IC stress |
| PPPM | 400 W - peak surge energy absorption capability with standard 10/1000 μs waveform |
| RθJL | 66 °C/W - thermal resistance from junction to lead, enabling thermal derating up to 175 °C TJ |
| TJ max | +175 °C - maximum operating junction temperature, supporting under-hood automotive use |
| IFSM | 40 A - non-repetitive forward surge current rating (8.3 ms half-sine), relevant for fault conditions |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, molded epoxy body with matte tin-plated leads; RoHS-compliant (E3 suffix); UL 94 V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side in unidirectional configuration; carries surge current during forward faults |
| Cathode | Reverse-biased clamping terminal | Marked by color band; referenced to system ground or protected rail; conducts during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| 400 W peak pulse power (10/1000 μs) | Supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surge events |
| AEC-Q101 qualified (HE3 variant) | Validated for automotive electronics per stress test requirements including HTOL, TC, and HAST |
| Low clamping ratio (VC/VBR ≈ 1.33) | Minimizes overvoltage margin between clamping and IC absolute maximum ratings |
| Solderable per J-STD-002/JESD 22-B102 | Ensures reliable lead termination during wave or reflow assembly without dewetting or voiding |
Applications
| Automotive Sensor Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and inductive kickback in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional clamping element placed between signal line and chassis ground, activated within nanoseconds of overvoltage onset. Use Value: Limits transient voltage to ≤37.5 V, preventing damage to 3.3 V/5 V microcontrollers and analog-to-digital converters with 40 V absolute max rating. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring surges and relay contact bounce. IC Role / Device Role / Timing Role: Primary overvoltage clamp on isolated input optocoupler anode side, coordinated with series current-limiting resistor. Use Value: Absorbs 400 W pulses without degradation, maintaining <1 μA leakage at 23.1 V to ensure clean logic state detection. |
| Consumer Power Adapter Output | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side transient suppression on 5–19 V DC outputs of wall adapters and USB PD chargers exposed to user-handling ESD. IC Role / Device Role / Timing Role: Final-stage shunt protector downstream of DC-DC converter, sized to clamp fast-rising ESD events before reaching connected devices. Use Value: Responds in <1 ns to ±8 kV contact discharge (IEC 61000-4-2), clamping to 37.5 V while sustaining 10.7 A peak current. |
Use Scenario: Front-end protection on Ethernet PHY or DSL line interface cards subjected to lightning-induced surges on twisted-pair copper lines. IC Role / Device Role / Timing Role: First-line bidirectional-capable (via CA variant) or unidirectional clamp referenced to common-mode ground plane. Use Value: Withstands repetitive 10/1000 μs surges up to 400 W at 0.01% duty cycle, preserving signal integrity on 100BASE-TX differential pairs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A | DO-214AA package; 24 V VWM, 38.9 V VC @ 10.3 A; 600 W PPPM | Higher power rating but larger footprint; requires PCB layout change | Select SMBJ24A when higher surge margin or surface-mount assembly is required |
| 1.5KE27A | DO-201AD package; identical VBR (25.7–28.4 V), same VC (37.5 V), but 1500 W PPPM | Larger axial package (5.6 mm Ø vs. DO-41's 2.7 mm Ø); higher IPPM (41.2 A) | Choose 1.5KE27A where legacy through-hole designs demand higher single-pulse robustness |
Compared with P4KE27-E3/54, SMBJ24A offers greater surge capacity in a smaller SMD form factor but shifts from axial to surface mount, while 1.5KE27A delivers triple the peak power in a physically larger axial package - both require mechanical redesign but preserve functional clamping behavior.
Availability
P4KE27-E3/54 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC inputs, and consumer power adapter outputs requiring stable component supply across production lifecycles.
Supply support for P4KE27-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, rectifiers, MOSFETs, and protection devices with emphasis on reliability and automotive-grade qualification.
The P4KE27-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for cost-effective, high-volume transient suppression in harsh environments including automotive, industrial control, and telecom infrastructure.
FAQ
What is the polarity configuration of the P4KE27-E3/54?
The P4KE27-E3/54 is a unidirectional TVS diode, meaning it conducts only in reverse bias above its breakdown voltage. Its cathode is identified by a color band on the DO-41 package body. This configuration makes P4KE27-E3/54 suitable for DC rail protection where polarity is fixed, unlike bidirectional variants (e.g., P4KE27CA) used in AC or differential signal paths.
Does the P4KE27-E3/54 meet automotive qualification standards?
The P4KE27-E3/54 itself is RoHS-compliant and commercial-grade; however, the HE3-suffixed variant (P4KE27AHE3/54) is explicitly AEC-Q101 qualified. For automotive applications requiring stress-tested reliability, P4KE27AHE3/54 must be selected - P4KE27-E3/54 lacks the qualification documentation and test reports required for under-hood deployment.
What is the maximum clamping voltage of the P4KE27-E3/54 under surge conditions?
The P4KE27-E3/54 clamps to a maximum of 37.5 V when subjected to its rated 10.7 A peak pulse current (10/1000 μs waveform). This value is guaranteed across temperature and lifetime per Vishay's datasheet specifications and directly determines the voltage stress imposed on downstream components during transient events.
Can the P4KE27-E3/54 replace the P4KE24A or P4KE30A in an existing design?
No - P4KE27-E3/54 has a distinct 25.7–28.4 V breakdown range and 23.1 V stand-off voltage. Substituting it for P4KE24A (22.8–25.2 V VBR) or P4KE30A (28.5–31.5 V VBR) risks premature clamping or insufficient protection. Each P4KExxA variant is uniquely binned; interchange requires validation of VWM, VC, and system margin.
What is the thermal resistance specification for the P4KE27-E3/54?
The P4KE27-E3/54 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W, measured with lead length L = 10 mm. This parameter governs temperature rise during power dissipation and is essential for calculating safe operating area under repetitive surge conditions or elevated ambient temperatures.
P4KE27-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 21.8V
- Voltage - Breakdown (Min):
- 24.3V
- Voltage - Clamping (Max) @ Ipp:
- 39.1V
- Current - Peak Pulse (10/1000µs):
- 10.2A
- 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)
P4KE27-E3/54 FAQ
1.How can I place an order for P4KE27-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE27-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 P4KE27-E3/54 reliable?
The price and inventory of P4KE27-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 P4KE27-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE27-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE27-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE27-E3/54?
P4KE27-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE27-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 P4KE27-E3/54?
For technical support, including P4KE27-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE27-E3/54 requirements.
6.How does Aetrix verify that P4KE27-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE27-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 P4KE27-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE27-E3/54?
All P4KE27-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE27-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 P4KE27-E3/54 part is unused and in its original packaging.
Return procedure for P4KE27-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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