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Vishay General Semiconductor - Diodes Division P4KE27A-E3/54
- Part No.:
- P4KE27A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE27A-E3/54.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,319
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Product details
Overview
P4KE27A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on power and signal lines. It features 27 V breakdown voltage (VBR min/max = 25.7–28.4 V), 23.1 V stand-off voltage (VWM), 37.5 V maximum clamping voltage at 10.7 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs and ICs in automotive and industrial power supplies.
For engineers reviewing the P4KE27A-E3/54 datasheet, P4KE27A-E3/54 pinout, P4KE27A-E3/54 application, or P4KE27A-E3/54 equivalent, key selection criteria include unidirectional polarity, DO-41 leaded package compatibility, 175 °C max junction temperature, AEC-Q101 qualification (via HE3 suffix variant), and verified clamping performance under 10/1000 μs surge conditions.
Technical Context
This TVS diode operates as a voltage-clamping protection device that enters avalanche conduction when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low dynamic impedance, enabling consistent clamping at 37.5 V under 10.7 A transient current.
Thermal design relies on RθJL = 66 °C/W (junction-to-lead) and RθJA = 100 °C/W (junction-to-ambient, LLead = 10 mm), supporting operation up to 175 °C junction temperature. The 1.5 W steady-state power dissipation (PD) and 40 A IFSM rating allow robust handling of repetitive surges and inductive turn-off spikes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 25.7 V / 28.4 V - defines precise avalanche onset range for reliable overvoltage triggering |
| VWM | 23.1 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 37.5 V - clamped voltage during 10.7 A 10/1000 μs transient, limiting downstream stress |
| PPPM | 400 W - peak surge power handling capability per single 10/1000 μs pulse |
| IPPM | 10.7 A - maximum non-repetitive peak pulse current supported at rated waveform |
| TJ max | +175 °C - enables use in under-hood automotive and high-temperature industrial environments |
| RθJL | 66 °C/W - supports thermal management via PCB copper pour or heatsinked leads |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; cathode indicated by color band on body; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side in unidirectional configuration; carries forward surge current up to 40 A |
| Cathode | Avalanche clamping terminal | Marked end; reverse-biased during transient suppression; clamps voltage to ≤37.5 V at 10.7 A |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance (±5 %) and long-term reliability under thermal cycling |
| 400 W peak pulse power (10/1000 μs) | Provides robust protection against ISO 7637-2 Load Dump and IEC 61000-4-5 surge events |
| AEC-Q101 qualified (HE3 variant) | Validated for automotive powertrain and body electronics per stress test requirements |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response time) |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and automotive enclosures |
Applications
| Automotive Power Supply Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 24 V DC power rails in engine control units against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed across input terminals upstream of DC/DC converters. Use Value: Limits voltage to ≤37.5 V during 10.7 A surges, preventing damage to 36 V-rated regulators and microcontrollers. |
Use Scenario: Shielding digital input channels of programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Standoff protector on 24 V sensor interface lines, absorbing inductive kickback from solenoid drivers. Use Value: Maintains 23.1 V working voltage margin while clamping transients within 1 ns, preserving signal integrity. |
| Consumer Appliance Motor Control | Telecom Power Interface |
Use Scenario: Safeguarding H-bridge gate drivers in washing machine motor inverters from back-EMF spikes. IC Role / Device Role / Timing Role: Reverse-biased TVS on half-bridge supply rail, conducting only during overvoltage events. Use Value: Withstands 40 A IFSM surge current and 175 °C junction temperature, matching motor drive thermal profiles. |
Use Scenario: Front-end protection on 48 V PoE-powered telecom equipment against lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping element on DC input, coordinated with GDT and MOV stages. Use Value: Delivers 400 W pulse power handling and 66 °C/W thermal resistance for sustained duty-cycle operation. |
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 | Surface-mount SMB package; 24 V VWM; 38.9 V VC @ 10.3 A; same 400 W PPPM | Requires PCB re-layout; better high-frequency response due to lower parasitic inductance | Select when space-constrained designs or automated assembly demand SMD packaging |
| 1.5KE27A | Higher PPPM = 1500 W; same DO-41 package; VWM = 23.1 V; VC = 37.5 V @ 40.1 A | Over-spec'd for moderate surge environments; higher cost and larger thermal mass | Choose only when legacy 1.5KE footprint compatibility or >10 A surge margin is mandatory |
Compared with SMBJ24A and 1.5KE27A, the P4KE27A-E3/54 offers optimal balance of through-hole manufacturability, AEC-Q101 readiness (via HE3), and precise 23.1 V standoff for 24 V systems - without over-engineering surge capacity or sacrificing thermal derating headroom.
Availability
P4KE27A-E3/54 is available at Aetrix Electronics and suitable for automotive power supply protection, industrial PLC input protection, and consumer appliance motor control requiring stable component supply and RoHS-compliant sourcing.
Supply support for P4KE27A-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, and protection devices with emphasis on reliability and automotive-grade qualification.
The P4KE series targets cost-sensitive, high-volume transient suppression needs in automotive, industrial, and consumer power systems - delivering standardized DO-41 TVS performance with AEC-Q101 validation path and UL 94 V-0 safety compliance.
FAQ
What is the polarity configuration of the P4KE27A-E3/54?
The P4KE27A-E3/54 is a unidirectional TVS diode, with the cathode identified by a color band on the DO-41 package body. It conducts in forward bias like a standard diode and clamps reverse transients above its 25.7–28.4 V breakdown range. This polarity enables precise placement across DC rails where only negative-going surges require suppression.
Does the P4KE27A-E3/54 meet automotive qualification standards?
The P4KE27A-E3/54 itself is RoHS-compliant commercial grade (E3 suffix); however, its HE3-suffix variant (P4KE27AHE3/54) is explicitly AEC-Q101 qualified per the Vishay datasheet. For automotive applications requiring qualification evidence, P4KE27AHE3/54 must be specified - the E3 version lacks formal stress-test validation.
What is the maximum clamping voltage of the P4KE27A-E3/54 under surge conditions?
The P4KE27A-E3/54 has a maximum clamping voltage (VC) of 37.5 V at its rated peak pulse current (IPPM) of 10.7 A, measured using the standard 10/1000 μs double-exponential waveform. This value ensures downstream components rated for ≤40 V operation remain within safe voltage limits during transient events.
Can the P4KE27A-E3/54 replace the P4KE24A in a 24 V system?
No - the P4KE27A-E3/54 has a 23.1 V stand-off voltage (VWM), which is below typical 24 V nominal rail tolerances (±10 %). Using it risks excessive leakage or premature conduction. The P4KE24A (VWM = 20.5 V) is similarly marginal; P4KE27A-E3/54 is intended for 27 V systems or where tighter VWM margin is acceptable.
What is the thermal resistance specification for the P4KE27A-E3/54?
The P4KE27A-E3/54 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W and junction-to-ambient resistance (RθJA) of 100 °C/W (with 10 mm lead length). These values enable thermal design using PCB copper pours or chassis-mounted leads, supporting continuous operation up to 175 °C junction temperature.
P4KE27A-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):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 10.7A
- 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)
P4KE27A-E3/54 FAQ
1.How can I place an order for P4KE27A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE27A-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 P4KE27A-E3/54 reliable?
The price and inventory of P4KE27A-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 P4KE27A-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE27A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE27A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE27A-E3/54?
P4KE27A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE27A-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 P4KE27A-E3/54?
For technical support, including P4KE27A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE27A-E3/54 requirements.
6.How does Aetrix verify that P4KE27A-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE27A-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 P4KE27A-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE27A-E3/54?
All P4KE27A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE27A-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 P4KE27A-E3/54 part is unused and in its original packaging.
Return procedure for P4KE27A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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