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Vishay General Semiconductor - Diodes Division P4KE24C-E3/73
- Part No.:
- P4KE24C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE24C-E3/73.pdf
- Description:
- TVS DIODE 19.4VWM 34.7VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,299
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Product details
Overview
P4KE24C-E3/73 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on signal or power lines. It features 24 V breakdown voltage (VBR = 22.8–25.2 V at 1.0 mA), 33.2 V maximum clamping voltage (VC) at 12.0 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the P4KE24C-E3/73 datasheet, P4KE24C-E3/73 pinout, P4KE24C-E3/73 application, or P4KE24C-E3/73 equivalent, key selection criteria include bidirectional clamping capability, DO-41 leaded package compatibility, 24 V standoff voltage (VWM = 20.5 V), low leakage (<1.0 μA), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This device operates as a voltage-clamping protection element using an avalanche breakdown mechanism. Its bidirectional symmetry enables suppression of both positive and negative transients without polarity sensitivity, making it suitable for AC-coupled or floating signal lines. The glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance.
It delivers 400 W peak pulse power handling under standardized 10/1000 μs waveform conditions, with thermal resistance of 66 °C/W (junction-to-lead) and 100 °C/W (junction-to-ambient). The device is rated for operation from –55 °C to +175 °C and supports soldering per JESD 22-B106 (275 °C max, 10 s).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 22.8 V / 25.2 V at 1.0 mA - defines reliable conduction onset range for transient clamping |
| VWM | 20.5 V - maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPPM | 33.2 V at 12.0 A - clamped voltage during worst-case surge, limiting stress on downstream components |
| PPPM | 400 W - peak transient energy absorption capacity with 10/1000 μs waveform |
| IPPM | 12.0 A - maximum non-repetitive surge current the device can safely divert |
| TJ max. | +175 °C - enables use in high-temperature engine bay or industrial power supply environments |
| Leakage ID | <1.0 μA at VWM - ensures minimal standby power loss and signal integrity in low-current circuits |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; no polarity marking for bidirectional configuration - terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Bidirectional conduction allows identical clamping for ± surges; no cathode band marking required |
| Lead 1 / Lead 2 | Connection interface | Leads support manual or wave soldering per J-STD-002; 10 mm lead length yields RθJA = 100 °C/W |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress |
| 400 W peak pulse power (10/1000 μs) | Handles common ESD and inductive switching transients without degradation |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and automotive enclosures |
| Low clamping ratio (VC/VBR ≈ 1.33) | Minimizes overvoltage exposure to protected ICs during transient events |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V CAN bus power rails and LIN transceivers from load dump and jump-start surges. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across VCC and GND to limit transients to safe levels for transceiver ICs. Use Value: Clamps 33.2 V at 12 A, preventing damage to 36 V-rated CAN PHYs while maintaining signal integrity. | Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC analog input modules. IC Role / Device Role / Timing Role: Standoff protection device on 4–20 mA loop or 0–10 V output line against field wiring faults and ESD. Use Value: 20.5 V VWM aligns with typical industrial sensor output ranges, enabling clean DC operation with fast transient response. |
| Consumer Appliance Motor Control | Telecom DSL Line Protection |
Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals to absorb back-EMF spikes during commutation. Use Value: 400 W rating handles repetitive 10/1000 μs surges from motor switching without thermal runaway. | Use Scenario: Front-end protection for ADSL/VDSL line drivers exposed to lightning-induced surges on outside plant wiring. IC Role / Device Role / Timing Role: Primary clamping element on twisted-pair line inputs prior to transformer coupling and receiver ICs. Use Value: Symmetrical bidirectional behavior protects both differential line pairs equally, meeting ITU-T K.21 basic protection level. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24CA | DO-214AA package, 600 W PPPM, lower VC (38.9 V), higher IPPM (15.4 A) | SMT-only layout; better suited for high-density PCBs with space constraints | Select when surface-mount assembly and higher surge margin are prioritized over through-hole serviceability |
| 1.5KE24CA | DO-201AD package, 1500 W PPPM, same VBR range, higher VC (38.9 V) | Larger footprint; intended for higher-energy industrial surge environments | Choose for legacy designs requiring higher single-pulse robustness where board space permits |
Compared with SMBJ24CA and 1.5KE24CA, P4KE24C-E3/73 offers optimal balance of proven DO-41 mechanical reliability, AEC-Q101 qualification, and cost-effective 400 W protection - ideal for automotive and industrial through-hole assemblies where reworkability and thermal derating predictability matter.
Availability
P4KE24C-E3/73 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, consumer appliance motor controls, and telecom line interface designs requiring stable component supply and long-lifecycle support.
Supply support for P4KE24C-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, and protection devices with emphasis on reliability and automotive qualification.
The P4KE series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, cost-effective transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure applications.
FAQ
What is the polarity configuration of P4KE24C-E3/73?
P4KE24C-E3/73 is a bidirectional TVS diode, meaning it has no polarity marking and functions identically for positive and negative transients. Unlike unidirectional variants (e.g., P4KE24A), it lacks a cathode band and is symmetrically constructed for AC or floating-line protection - confirmed by its "C" suffix and electrical characteristics applying in both directions per Vishay documentation.
Is P4KE24C-E3/73 qualified for automotive applications?
Yes, P4KE24C-E3/73 is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet revision 16-Sep-2021 (Document Number: 88365). This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and surge robustness - making P4KE24C-E3/73 suitable for under-hood and body electronics in passenger vehicles and commercial vehicles.
What does the "E3/73" suffix indicate in P4KE24C-E3/73?
The "E3" denotes RoHS-compliant, commercial-grade packaging with JESD 201 Class 1A whisker resistance; "/73" specifies the packaging option - 73 indicates 1.5 kΩ tape-and-reel quantity per reel (standard for DO-41 parts at Vishay). This differs from "/54", which denotes 5.5 kΩ reels. Both are compatible with standard axial-leaded automated insertion equipment.
How does P4KE24C-E3/73 compare to P4KE24A in circuit design?
P4KE24C-E3/73 is bidirectional with symmetrical clamping, while P4KE24A is unidirectional and requires correct cathode orientation. P4KE24C-E3/73 has identical VBR (22.8–25.2 V), VWM (20.5 V), and VC (33.2 V) but omits forward voltage (VF) specification since it conducts equally in both directions - critical for protecting AC-coupled or differential lines where polarity is undefined.
What is the thermal resistance profile of P4KE24C-E3/73?
P4KE24C-E3/73 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W and junction-to-ambient (RθJA) of 100 °C/W with 10 mm lead length. These values are measured per standard test conditions and enable accurate thermal derating - for example, at 75 °C ambient, maximum continuous power drops to ~0.75 W based on Fig. 5 in the Vishay datasheet.
P4KE24C-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 19.4V
- Voltage - Breakdown (Min):
- 21.6V
- Voltage - Clamping (Max) @ Ipp:
- 34.7V
- Current - Peak Pulse (10/1000µs):
- 11.5A
- 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)
P4KE24C-E3/73 FAQ
1.How can I place an order for P4KE24C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE24C-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 P4KE24C-E3/73 reliable?
The price and inventory of P4KE24C-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 P4KE24C-E3/73 is usually 5 days.
3.What payment methods are accepted for P4KE24C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE24C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE24C-E3/73?
P4KE24C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE24C-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 P4KE24C-E3/73?
For technical support, including P4KE24C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE24C-E3/73 requirements.
6.How does Aetrix verify that P4KE24C-E3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE24C-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 P4KE24C-E3/73 meets industry standards.
7.What is the process for return or replacement of P4KE24C-E3/73?
All P4KE24C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE24C-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 P4KE24C-E3/73 part is unused and in its original packaging.
Return procedure for P4KE24C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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