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Vishay General Semiconductor - Diodes Division P6KE24A-E3/1
- Part No.:
- P6KE24A-E3/1
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE24A-E3/1.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,836
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Product details
Overview
P6KE24A-E3/1 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection of DC power rails and signal lines. It features a 24 V nominal breakdown voltage (VBR = 22.8–25.2 V at 1 mA), 33.2 V maximum clamping voltage at 18.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive body control modules to safeguard microcontroller I/O against load dump and inductive switching transients.
For engineers reviewing the P6KE24A-E3/1 datasheet, P6KE24A-E3/1 pinout, P6KE24A-E3/1 application, or P6KE24A-E3/1 equivalent, key selection criteria include its DO-204AC (DO-15) axial package, unidirectional polarity with cathode band marking, 20.5 V stand-off voltage (VWM), <1.0 μA reverse leakage at VWM, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
The P6KE24A-E3/1 operates as a silicon avalanche diode with glass-passivated junction, enabling sub-nanosecond response to transient events. Its clamping behavior is defined by a low incremental surge resistance and tightly specified VC/IPPM relationship: at 18.1 A (10/1000 μs), it limits voltage to ≤33.2 V while maintaining thermal stability up to TJ = 175 °C.
It is rated for 5.0 W steady-state power dissipation on an infinite heatsink at TL = 75 °C and supports 100 A non-repetitive forward surge current (8.3 ms half-sine). The device exhibits +0.094 %/°C temperature coefficient of VBR, ensuring predictable voltage drift across operating temperature range (−55 °C to +175 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 22.8 V / 25.2 V at 1.0 mA - defines reliable avalanche initiation threshold under standardized test conditions |
| VWM | 20.5 V - maximum continuous reverse working voltage before significant leakage begins |
| VC @ IPPM | 33.2 V at 18.1 A (10/1000 μs) - peak clamped voltage seen by protected circuit during worst-case surge |
| IPPM | 18.1 A - maximum non-repetitive surge current the device safely clamps without degradation |
| PPPM | 600 W - peak pulse power handling capability per industry-standard 10/1000 μs waveform |
| RθJL | 20 °C/W - thermal resistance from junction to lead, critical for PCB trace heat sinking design |
| TJ max. | +175 °C - maximum junction temperature enabling operation in under-hood automotive environments |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, molded epoxy case meeting UL 94 V-0 flammability rating; 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 (e.g., GND) in unidirectional configuration; conducts during positive transients when cathode is biased higher |
| Cathode | Avalanche clamping terminal | Marked with color band; connected to protected line (e.g., 24 V rail); clamps reverse transients by avalanching at VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche performance and long-term reliability under repeated surge stress |
| 600 W peak pulse power (10/1000 μs) | Supports robust protection against ISO 7637-2 Pulse 1, 2a, 3a/b, and SAE J1113-11 load-dump surges |
| AEC-Q101 qualified (E3 suffix variant) | Validated for automotive applications including engine control units, lighting modules, and ADAS sensor interfaces |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes overvoltage exposure to downstream ICs while maintaining margin above VWM |
| −55 °C to +175 °C operating range | Enables deployment in extreme ambient environments such as powertrain and chassis control systems |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V CAN bus power supply against load dump transients in commercial vehicle ECUs. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converter input to limit voltage excursion to ≤33.2 V during 12 V system load dump events. Use Value: Prevents damage to buck controller ICs and ensures uninterrupted operation during ISO 16750-2 Test 4a (load dump simulation). |
Use Scenario: Shielding analog output lines of pressure sensors in hydraulic control valves from ESD and inductive kickback. IC Role / Device Role / Timing Role: Fast-response shunt protector on 4–20 mA current loop outputs, triggered within <1 ns to suppress transients exceeding 20.5 V. Use Value: Maintains sensor accuracy and avoids false triggering in SIL-2-rated industrial safety systems by limiting fault voltage below ADC input absolute maximum rating. |
| Consumer Power Adapter Input Protection | Telecom Line Card Surge Suppression |
|
Use Scenario: Secondary-side overvoltage clamp on 19 V laptop adapter output to guard against regulator failure-induced overvoltage. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VOUT and GND, conducting only during positive overvoltage faults to divert excess energy to ground. Use Value: Limits fault voltage to 33.2 V, preventing catastrophic failure of downstream USB-C PD controllers and battery management ICs. |
Use Scenario: Front-end protection of Ethernet PHY power pins in telecom base station line cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated clamp on 3.3 V/5 V bias rails, activated only during >20.5 V transients to avoid interference with normal signal integrity. Use Value: Survives multiple 600 W surges per IEC 61000-4-5 Level 4 testing while preserving low-capacitance signal path performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A | Same VBR range (22.8–25.2 V) but SMC (DO-214AB) surface-mount package; 600 W rating; lower RθJA (50 °C/W vs. 75 °C/W) | Requires PCB re-layout for SMD placement; better suited for high-density consumer electronics where board space is constrained | Select SMBJ24A when automated assembly and thermal performance on copper pour are prioritized over through-hole serviceability. |
| 1.5KE24A | Same DO-204AC package and VBR, but 1500 W peak power (10/1000 μs); higher IPPM (68.2 A); larger case volume | Used where higher single-event surge immunity is required (e.g., railway signaling), but over-spec'd for typical automotive 24 V systems | Choose 1.5KE24A only if legacy system requirements mandate 1500 W rating; P6KE24A-E3/1 offers optimal cost/performance balance for standard ISO 7637 compliance. |
Compared with SMBJ24A and 1.5KE24A, the P6KE24A-E3/1 delivers AEC-Q101 qualification and optimized 600 W surge handling in a proven through-hole DO-15 package - making it the preferred choice for cost-sensitive, high-reliability automotive and industrial designs requiring field-serviceable replacement and validated thermal derating curves.
Availability
P6KE24A-E3/1 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom line card protection requiring stable component supply with full RoHS and AEC-Q101 compliance documentation.
Supply support for P6KE24A-E3/1 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 TVS devices with emphasis on reliability, ruggedness, and application-specific validation.
The P6KE series belongs to Vishay's TransZorb® family of transient suppressors, engineered for cost-effective, high-surge-capability protection in automotive, industrial, and consumer power systems where fast clamping and thermal robustness are essential.
FAQ
What is the maximum clamping voltage of the P6KE24A-E3/1 under standard surge conditions?
The P6KE24A-E3/1 has a maximum clamping voltage (VC) of 33.2 V when subjected to its rated peak pulse current of 18.1 A using the 10/1000 μs waveform. This value is measured per JEDEC standards and represents the highest voltage the protected circuit will experience during a worst-case transient event. The P6KE24A-E3/1 maintains this clamping performance across its full operating temperature range, making it suitable for demanding environments like automotive under-hood applications.
Is the P6KE24A-E3/1 suitable for automotive applications?
Yes, the P6KE24A-E3/1 is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and ADAS sensor interfaces. Its −55 °C to +175 °C operating junction temperature range, glass-passivated junction, and compliance with ISO 7637-2 pulse test profiles confirm its suitability. The "E3" suffix denotes RoHS-compliant, commercial-grade construction with JESD 201 Class 1A whisker resistance - a key requirement for automotive supply chain traceability and reliability.
How does the P6KE24A-E3/1 differ from bi-directional TVS diodes like P6KE24CA?
The P6KE24A-E3/1 is unidirectional and features a cathode band marking; it conducts only during reverse-biased overvoltage events and blocks forward current beyond ~3.5 V. In contrast, P6KE24CA is bi-directional with no polarity marking and clamps transients of either polarity symmetrically. The P6KE24A-E3/1 is used on DC rails where polarity is fixed (e.g., 24 V supply to GND), while P6KE24CA suits AC-coupled or floating signal lines. Their VBR, VC, and PPPM ratings are otherwise identical.
What is the thermal resistance and how does it affect PCB layout for the P6KE24A-E3/1?
The P6KE24A-E3/1 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient (RθJA) of 75 °C/W. For reliable operation at full 5.0 W steady-state dissipation, PCB traces connected to both leads must act as thermal conduits - minimum 10 mm² copper area per lead is recommended. The P6KE24A-E3/1's axial DO-15 package relies on lead conduction rather than pad convection, so via-stitched thermal reliefs and thick traces directly to internal ground/power planes significantly improve thermal margin.
Can the P6KE24A-E3/1 be used in parallel for higher surge current handling?
No, the P6KE24A-E3/1 should not be paralleled without external balancing components. Due to manufacturing tolerances in VBR (22.8–25.2 V), mismatched avalanche turn-on causes current hogging - one device absorbs most of the surge and fails prematurely. If higher IPPM is required, select a single higher-rated device like 1.5KE24A instead. The P6KE24A-E3/1's design assumes standalone operation with verified clamping performance at its rated 18.1 A peak pulse current.
P6KE24A-E3/1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 18.1A
- 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)
P6KE24A-E3/1 FAQ
1.How can I place an order for P6KE24A-E3/1 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE24A-E3/1 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 P6KE24A-E3/1 reliable?
The price and inventory of P6KE24A-E3/1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE24A-E3/1 is usually 5 days.
3.What payment methods are accepted for P6KE24A-E3/1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE24A-E3/1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE24A-E3/1?
P6KE24A-E3/1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE24A-E3/1 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 P6KE24A-E3/1?
For technical support, including P6KE24A-E3/1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE24A-E3/1 requirements.
6.How does Aetrix verify that P6KE24A-E3/1 is sourced from the original manufacturer or authorized distributors?
All P6KE24A-E3/1 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 P6KE24A-E3/1 meets industry standards.
7.What is the process for return or replacement of P6KE24A-E3/1?
All P6KE24A-E3/1 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE24A-E3/1, 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 P6KE24A-E3/1 part is unused and in its original packaging.
Return procedure for P6KE24A-E3/1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE24A-E3/1 Tags
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