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Vishay General Semiconductor - Diodes Division P6KE27-E3/73
- Part No.:
- P6KE27-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE27-E3/73.pdf
- Description:
- TVS DIODE 21.8VWM 39.1VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,785
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Product details
Overview
P6KE27-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 27 V breakdown voltage (VBR = 25.7–28.4 V), 23.1 V standoff voltage (VWM), 37.5 V clamping voltage at 16.0 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and DC-DC converter input stages.
For engineers reviewing the P6KE27-E3/73 datasheet, P6KE27-E3/73 pinout, P6KE27-E3/73 application, or P6KE27-E3/73 equivalent, key selection criteria include its DO-204AC (DO-15) axial package, unidirectional polarity with cathode band marking, AEC-Q101 qualification (via HE3 variant), 175 °C max junction temperature, and low 0.096 %/°C VBR temperature coefficient - critical for stable clamping under thermal stress.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ at VWM), but triggers into low-impedance conduction when transient voltage exceeds VBR, diverting surge current away from downstream ICs. Its glass-passivated junction ensures consistent avalanche behavior and fast response (<1 ns).
It is rated for 600 W non-repetitive peak pulse power (10/1000 µs), with derating above 25 °C per Fig. 2, and supports 100 A 8.3 ms half-sine forward surge current. The 20 °C/W junction-to-lead thermal resistance enables effective heat dissipation through PCB copper land patterns without heatsinking in typical 5–10 W average power scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 25.7 V / 28.4 V - defines precise avalanche initiation window; ensures reliable triggering before damage to 24 V system components |
| VWM | 23.1 V - maximum continuous reverse operating voltage; allows safe operation across 24 V nominal rails with margin |
| VC @ IPPM | 37.5 V - clamping voltage at 16.0 A peak pulse; limits transient excursion to <1.6× VWM, protecting 30 V-rated MOSFETs and regulators |
| IPPM | 16.0 A - peak pulse current capability with 10/1000 µs waveform; sustains EN 61000-4-5 Level 3 (1 kV/42 Ω) surges |
| PPPM | 600 W - peak pulse power handling; accommodates repetitive transients up to 0.01 % duty cycle without degradation |
| TJ max | 175 °C - maximum junction temperature; supports under-hood automotive environments and high-ambient industrial enclosures |
| Temp. Coeff. (αVBR) | 0.096 %/°C - low drift ensures stable clamping across -55 °C to +125 °C operating range |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, epoxy-molded case meeting UL 94 V-0 flammability rating. Matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Cathode identified by color band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return plane; forms low-inductance surge current loop with cathode |
| Cathode | Protected line connection / avalanche trigger node | Connected to line being protected (e.g., 24 V rail); color band marks this terminal for correct orientation during placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures repeatable, low-variance avalanche characteristics across production lots and temperature - critical for predictable clamping in safety-critical systems |
| 600 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 combination wave surges up to 1 kV open-circuit / 0.5 kA short-circuit without failure |
| AEC-Q101 qualified (HE3 variant) | Validated for automotive electronics per stress test requirements including HTOL, TC, UHAST - enables use in engine control, ADAS sensors, and body ECUs |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), reducing stress on downstream ESD-hardened ICs |
| RoHS-compliant (E3 suffix) | Meets EU Directive 2011/65/EU with lead-free matte tin plating and halogen-free molding compound per JEDEC JS709A |
Applications
| Automotive Sensor Interface | Industrial PLC Digital Input |
|---|---|
|
Use Scenario: Protecting CAN/LIN transceiver supply pins and analog sensor signal lines (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle chassis modules. IC Role / Device Role / Timing Role: Shunt-type transient clamp placed between VCC and GND, triggered within <1 ns to limit voltage excursions below IC absolute maximum ratings. Use Value: Prevents latch-up or gate oxide rupture in 24 V-rated transceivers and ADC front-ends during 12 V system load dump events (up to 35 V, 400 ms). |
Use Scenario: Safeguarding 24 V DC digital input channels of programmable logic controllers against field-wiring induced surges from solenoid coil de-energization or lightning-induced coupling. IC Role / Device Role / Timing Role: Primary overvoltage barrier mounted directly at connector entry point, clamping transients before they reach optocoupler or Schmitt-trigger input circuitry. Use Value: Enables compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity requirements without additional RC filtering or active circuitry. |
| DC-DC Converter Input Stage | Consumer Appliance Motor Drive |
|
Use Scenario: Input rail protection for isolated 24 V to 5 V/3.3 V DC-DC converters powering microcontrollers and communication peripherals in industrial gateways. IC Role / Device Role / Timing Role: First-line defense against conducted transients entering via bulk input capacitors; coordinates with upstream fuse and common-mode choke. Use Value: Maintains converter uptime by preventing input overvoltage shutdown or internal FET avalanche failure during 10/1000 µs surges exceeding 500 W. |
Use Scenario: Suppressing commutation spikes on brushed DC motor power feeds in smart home appliances (e.g., washing machine drum drives, HVAC blowers). IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals to absorb inductive kickback energy during PWM switching transitions. Use Value: Eliminates contact arcing in mechanical relays and prevents false resets in motor control ICs caused by >30 V transients on 24 V supply lines. |
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 (SMB), 24 V VWM, 38.9 V VC @ 15.4 A, same 600 W rating | Surface-mount footprint; lower profile but higher thermal resistance (RθJA = 110 °C/W vs. 75 °C/W) | Select SMBJ24A for space-constrained PCBs where reflow assembly is preferred; verify thermal relief pad design meets power derating curves. |
| 1.5KE27A | Same DO-204AC package, identical VBR/VWM/VC specs, but 1.5 kW peak power (10/1000 µs) and 25 A IPPM | Higher surge capacity for infrequent, high-energy events (e.g., utility grid switching); larger physical size and higher cost | Choose 1.5KE27A only when system-level testing confirms >600 W surge exposure; otherwise P6KE27-E3/73 offers optimal cost/performance balance. |
Compared with SMBJ24A, P6KE27-E3/73 provides superior thermal performance in through-hole layouts and simpler manual rework; versus 1.5KE27A, it delivers adequate surge margin for most industrial and automotive transients while reducing board area and BOM cost.
Availability
P6KE27-E3/73 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC inputs, DC-DC converter input stages, and consumer appliance motor drive circuits requiring stable component supply and RoHS-compliant sourcing.
Supply support for P6KE27-E3/73 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, TVS devices, and optoelectronics with emphasis on reliability, power efficiency, and automotive-grade qualification.
The P6KE series was engineered for cost-sensitive, high-volume transient protection in 24 V systems - balancing robust surge handling, tight parameter distribution, and manufacturability in axial-leaded packages for both automated and hand-soldered assembly.
FAQ
What is the maximum clamping voltage of the P6KE27-E3/73 under standard test conditions?
The P6KE27-E3/73 has a maximum clamping voltage (VC) of 37.5 V when subjected to its rated peak pulse current of 16.0 A using the 10/1000 µs waveform. This value is measured per JEDEC standards and guarantees that downstream components see no more than 37.5 V during surge events - well within the safe operating area of most 30 V-rated ICs and MOSFETs. The P6KE27-E3/73 achieves this with minimal voltage overshoot due to its low incremental surge resistance.
Is the P6KE27-E3/73 suitable for automotive applications?
Yes - the P6KE27-E3/73 is RoHS-compliant and manufactured to Vishay's commercial-grade specifications. While the base E3 suffix is not AEC-Q101 qualified, the related P6KE27AHE3/73 variant (with HE3 suffix) is fully AEC-Q101 qualified for automotive use. Engineers selecting P6KE27-E3/73 for automotive designs must verify whether AEC-Q101 certification is required by their Tier 1 customer; if so, P6KE27AHE3/73 is the compliant alternative. The P6KE27-E3/73 itself remains suitable for non-safety-critical aftermarket or industrial-automotive hybrid systems.
How does the P6KE27-E3/73 differ from bi-directional TVS diodes like P6KE27CA?
The P6KE27-E3/73 is unidirectional and features a cathode band for polarity-sensitive placement, whereas P6KE27CA is bi-directional with no polarity marking and symmetric clamping in both directions. Unidirectional types like P6KE27-E3/73 offer lower leakage current (<1 µA at VWM) and tighter VBR tolerance compared to bi-directional variants, making them ideal for DC power rail protection. The P6KE27-E3/73 should not be substituted for P6KE27CA in AC-coupled or floating signal line applications where reverse-voltage capability is required.
What is the thermal resistance of the P6KE27-E3/73, and how does it affect layout design?
The P6KE27-E3/73 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient resistance (RθJA) of 75 °C/W under standard test conditions. This means effective heat transfer relies heavily on copper land area connected to its leads - designers should use ≥25 mm² of 2 oz copper per lead, with thermal vias to inner layers, to maintain junction temperature below 175 °C during repetitive surges. The P6KE27-E3/73's RθJA is significantly lower than SMD alternatives like SMBJ24A, giving it an advantage in thermally demanding through-hole applications.
Can the P6KE27-E3/73 be used in parallel for higher surge current handling?
No - the P6KE27-E3/73 is not recommended for parallel operation due to inherent VBR mismatch (±5 % tolerance) between units, which causes current imbalance and potential thermal runaway. Even with matched lots, minor parametric variation leads to one device conducting >80 % of the surge current. For higher surge ratings, select a single higher-power device such as 1.5KE27A (1.5 kW) or SMAJ24A (400 W in smaller package). The P6KE27-E3/73 is optimized for standalone use in 600 W-class protection schemes.
P6KE27-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- 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):
- 15.3A
- 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)
P6KE27-E3/73 FAQ
1.How can I place an order for P6KE27-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE27-E3/73 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 P6KE27-E3/73 reliable?
The price and inventory of P6KE27-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE27-E3/73 is usually 5 days.
3.What payment methods are accepted for P6KE27-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE27-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE27-E3/73?
P6KE27-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE27-E3/73 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 P6KE27-E3/73?
For technical support, including P6KE27-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE27-E3/73 requirements.
6.How does Aetrix verify that P6KE27-E3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE27-E3/73 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 P6KE27-E3/73 meets industry standards.
7.What is the process for return or replacement of P6KE27-E3/73?
All P6KE27-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE27-E3/73, 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 P6KE27-E3/73 part is unused and in its original packaging.
Return procedure for P6KE27-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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