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Vishay General Semiconductor - Diodes Division P6KE27A/54
- Part No.:
- P6KE27A/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE27A/54.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,475
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Product details
Overview
P6KE27A from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection on DC power rails and signal lines. It features a 25.7 V minimum breakdown voltage (VBR), 23.1 V maximum standoff voltage (VWM), 37.5 V clamping voltage (VC) at 16.0 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive body control modules to safeguard microcontrollers against load-dump transients.
For engineers reviewing the P6KE27A datasheet, P6KE27A pinout, P6KE27A application, or P6KE27A equivalent, this device is selected for robust, low-cost, leaded TVS protection where fast response (<1 ns), low clamping ratio (VC/VBR ≈ 1.46), and AEC-Q101 qualification are required in space-constrained DO-15 layouts.
Technical Context
The P6KE27A operates as a silicon avalanche diode with glass-passivated junction, enabling sub-nanosecond response to ESD and surge events. Its unidirectional polarity uses a cathode band marking and exhibits 3.5 V forward voltage at 50 A, supporting bidirectional transient suppression only when paired with complementary devices.
Thermal performance is defined by 20 °C/W junction-to-lead resistance and 75 °C/W junction-to-ambient resistance, permitting 5.0 W steady-state dissipation at TL = 75 °C. It complies with AEC-Q101 stress testing and UL 497B recognition for telecom and automotive protectors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 23.1 V maximum - ensures reliable blocking of normal 24 V rail operation without leakage-induced power loss |
| VBR (min/max) | 25.7 V / 28.4 V at 1.0 mA - defines precise avalanche initiation threshold for repeatable clamping onset |
| VC @ IPPM | 37.5 V at 16.0 A (10/1000 µs) - limits downstream IC voltage stress during 600 W surge events |
| IPPM | 16.0 A peak pulse current - supports EN 61000-4-5 Level 4 (4 kV) surge immunity in 24 V systems |
| PPPM | 600 W - delivers high-energy transient absorption without thermal runaway under repetitive 0.01% duty cycle |
| TJ max | 175 °C - enables operation in under-hood automotive environments with minimal derating |
| Package | DO-204AC (DO-15) - industry-standard axial-leaded package compatible with through-hole assembly and manual repair |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case with matte tin-plated leads solderable per J-STD-002; cathode indicated by color band on one end; no polarity marking on bi-directional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or low-side return path; conducts during reverse-transient clamping |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., 24 V supply); initiates breakdown when VAK exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, low-leakage (<1 µA at VWM) avalanche behavior across -55 °C to +175 °C |
| 600 W peak pulse power (10/1000 µs) | Withstands ISO 7637-2 Pulse 1/2a/5a surges in 24 V automotive ECUs without degradation |
| AEC-Q101 qualified | Validated for automotive under-hood use including temperature cycling, humidity bias, and mechanical shock |
| UL 497B recognized (QVGQ2) | Meets safety requirements for telecom and industrial interface protection without additional certification overhead |
| Low clamping ratio (VC/VBR = 1.46) | Minimizes overvoltage margin needed for downstream 30 V-rated MOSFETs and LDOs |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
|
Use Scenario: Protecting 24 V supply input of BCM microcontroller from load-dump transients up to 35 V/100 ms. IC Role / Device Role / Timing Role: Primary clamping element placed directly at connector entry point before bulk capacitance. Use Value: Limits voltage to ≤37.5 V during 16 A surge, preventing latch-up or gate oxide damage in MCU power management ICs. |
Use Scenario: Shielding 24 V digital input channel of PLC I/O module from field-wiring induced switching spikes. IC Role / Device Role / Timing Role: First-line transient suppressor ahead of optocoupler input stage and series current-limiting resistor. Use Value: Clamps 10/1000 µs surges to 37.5 V within <1 ns, ensuring optocoupler LED remains within safe forward voltage range. |
| Telecom Power Feeding Interface | Consumer Appliance Motor Drive |
|
Use Scenario: Safeguarding PoE-powered remote unit front-end against lightning-induced surges on 48 V feed lines. IC Role / Device Role / Timing Role: Standoff-mode protector on DC feed path, coordinated with upstream gas discharge tube (GDT). Use Value: Blocks leakage below 23.1 V while clamping to 37.5 V during fast-rising transients, preserving GDT coordination timing. |
Use Scenario: Suppressing inductive kickback from brushed DC motor commutation in smart washing machine control board. IC Role / Device Role / Timing Role: Unidirectional clamp across motor terminals, referenced to chassis ground. Use Value: Absorbs 600 W energy pulses without failure, eliminating need for snubber RC networks and reducing BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A | DO-214AA package; 24 V VWM, 38.9 V VC @ 15.4 A; same 600 W rating but lower profile SMT footprint | Requires PCB redesign for surface-mount assembly; better suited for high-density consumer PCBs | Select SMBJ24A when board space is constrained and reflow compatibility is mandatory. |
| 1.5KE27A | Same DO-15 package; identical VWM/VBR/VC specs but rated for 1.5 kW peak power (10/1000 µs) | Over-specified for most 24 V applications; higher cost and larger junction thermal mass | Choose 1.5KE27A only if legacy design requires backward compatibility with 1.5 kW surge test plans. |
Compared with SMBJ24A and 1.5KE27A, the P6KE27A offers optimal balance of proven through-hole reliability, AEC-Q101 qualification, and cost-effective 600 W protection - making it preferred for automotive and industrial designs where serviceability and thermal margin are prioritized over miniaturization.
Availability
P6KE27A is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC inputs, telecom power interfaces, and consumer appliance motor drives requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6KE27A 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, automotive qualification, and high-volume manufacturability.
The P6KE series was engineered for cost-sensitive, high-surge industrial and automotive applications where DO-15 form factor, AEC-Q101 compliance, and consistent clamping performance are essential.
FAQ
What is the maximum clamping voltage of the P6KE27A under standard test conditions?
The P6KE27A has a maximum clamping voltage (VC) of 37.5 V when subjected to a 10/1000 µs waveform at its rated peak pulse current of 16.0 A. This value is measured per JEDEC standards and reflects worst-case voltage seen by downstream circuitry during surge events - critical for verifying voltage tolerance margins of protected ICs in the P6KE27A application.
Is the P6KE27A suitable for automotive applications?
Yes, the P6KE27A is AEC-Q101 qualified and UL 497B recognized, confirming its suitability for automotive under-hood and body electronics. Its 175 °C maximum junction temperature, robust DO-15 package, and validated surge performance make it appropriate for use in BCMs, lighting controllers, and sensor interfaces where P6KE27A must withstand thermal cycling and repetitive transients.
How does the P6KE27A differ from bi-directional TVS diodes like P6KE27CA?
The P6KE27A is unidirectional with a cathode band marking and blocks voltage in forward bias up to 3.5 V at 50 A, whereas P6KE27CA is bi-directional with symmetric clamping in both polarities and no polarity marking. The P6KE27A is used on DC rails with defined ground reference; P6KE27CA suits AC-coupled or floating signal lines - selection depends strictly on circuit topology, not interchangeability.
What is the standoff voltage rating of the P6KE27A and why does it matter?
The P6KE27A has a maximum standoff voltage (VWM) of 23.1 V, meaning it remains non-conductive below this DC or RMS voltage. This ensures zero power loss and no interference during normal 24 V system operation while still triggering reliably above 25.7 V breakdown - a key parameter for avoiding false triggering in P6KE27A deployments on nominal 24 V supplies.
Can the P6KE27A be used in parallel for higher surge handling?
No - the P6KE27A is not characterized for parallel operation due to inherent VBR tolerances (±5.5%) that cause current imbalance and premature failure of one device. For higher surge capacity, select a single higher-rated part like 1.5KE27A or implement staged protection with upstream GDTs; parallel use of P6KE27A is not recommended or validated.
P6KE27A/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 16A
- Power - Peak Pulse:
- 600W
- 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-204AC (DO-15)
P6KE27A/54 FAQ
1.How can I place an order for P6KE27A/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE27A/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 P6KE27A/54 reliable?
The price and inventory of P6KE27A/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE27A/54 is usually 5 days.
3.What payment methods are accepted for P6KE27A/54?
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4.How is shipping managed for P6KE27A/54?
P6KE27A/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE27A/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 P6KE27A/54?
For technical support, including P6KE27A/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE27A/54 requirements.
6.How does Aetrix verify that P6KE27A/54 is sourced from the original manufacturer or authorized distributors?
All P6KE27A/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 P6KE27A/54 meets industry standards.
7.What is the process for return or replacement of P6KE27A/54?
All P6KE27A/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE27A/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 P6KE27A/54 part is unused and in its original packaging.
Return procedure for P6KE27A/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE27A/54 Tags
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