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Vishay General Semiconductor - Diodes Division P4KE22C-E3/73
- Part No.:
- P4KE22C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE22C-E3/73.pdf
- Description:
- TVS DIODE 17.8VWM 31.9VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:7,410
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Product details
Overview
P4KE22C-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 and power lines. It features 22 V breakdown voltage (VBR min/max = 20.9–23.1 V at 1.0 mA), 18.8 V standoff voltage (VWM), 30.6 V maximum clamping voltage (VC) at 13.1 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the P4KE22C-E3/73 datasheet, P4KE22C-E3/73 pinout, P4KE22C-E3/73 application, or P4KE22C-E3/73 equivalent, this device is selected for robust overvoltage protection in automotive sensor interfaces, industrial I/O modules, and telecom line drivers where bidirectional surge immunity and AEC-Q101 qualification are required.
Technical Context
This TVS operates symmetrically in both directions due to its bidirectional construction, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the DO-41 package supports manual and automated through-hole assembly with matte tin-plated leads compliant to J-STD-002.
The device delivers 30.6 V clamping voltage at 13.1 A IPPM under 10/1000 µs surge, achieving low incremental surge resistance for effective energy diversion. Thermal performance is characterized by RθJL = 66 °C/W and TJ(max) = 175 °C, supporting operation in harsh environments including under-hood automotive locations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 20.9 V / 23.1 V at 1.0 mA - defines reliable conduction onset across production lot and temperature range |
| VWM | 18.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 30.6 V at 13.1 A - clamped voltage seen by protected circuit during worst-case 10/1000 µs transient |
| PPPM | 400 W - peak surge power handling capability per single 10/1000 µs pulse |
| IPPM | 13.1 A - maximum non-repetitive surge current the device safely clamps without failure |
| TJ(max) | +175 °C - enables use in high-temperature environments such as engine control units and power supplies |
| RθJL | 66 °C/W - thermal resistance from junction to lead, critical for PCB copper pour design and power derating |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; no polarity marking for bidirectional configuration; matte tin-plated leads solderable per J-STD-002; RoHS-compliant, commercial-grade E3 suffix.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative half-cycle) | Conducts during negative surges; symmetrical with cathode for bidirectional clamping |
| Cathode | Transient current entry (positive half-cycle) | Conducts during positive surges; identical electrical behavior to anode in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and low leakage drift over temperature and lifetime |
| 400 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-ground) in properly designed circuits |
| AEC-Q101 qualified (HE3 variant); E3 is commercial grade | P4KE22C-E3/73 meets commercial reliability requirements; HE3 version available for automotive applications |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes let-through voltage to protect downstream ICs with tight VDD margins |
| DO-41 mechanical robustness | Withstands 275 °C solder dip for 10 s; UL 94 V-0 molding compound resists flame propagation |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential or single-ended signal lines upstream of interface ICs. Use Value: Limits transient voltage to ≤30.6 V, preventing damage to 3.3 V or 5 V rail-tied receivers while maintaining signal integrity during normal operation. | Use Scenario: Shielding digital input channels in programmable logic controllers from field-wiring induced surges (e.g., relay coil back-EMF, lightning-induced coupling). IC Role / Device Role / Timing Role: Primary overvoltage protection element mounted at terminal block or connector interface. Use Value: Absorbs up to 400 W of surge energy without degradation, enabling compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) standards. |
| Telecom Line Driver Protection | Consumer Power Adapter ESD/Surge Guard |
Use Scenario: Safeguarding RS-485/RS-232 transceivers and Ethernet PHY front-ends against lightning-induced common-mode surges on long cable runs. IC Role / Device Role / Timing Role: First-stage clamping device on line side of isolation barrier or common-mode choke. Use Value: Fast response time (<1 ns) and symmetric bidirectional clamping ensure equal protection for both polarities of fast-rising transients. | Use Scenario: Secondary-side transient suppression on DC output rails of AC/DC adapters used in smart home devices and audio equipment. IC Role / Device Role / Timing Role: Standoff voltage (18.8 V) aligns with 24 V nominal outputs; clamps surges before reaching downstream LDOs or USB-PD controllers. Use Value: Enables compact, cost-effective protection without requiring active circuitry or complex layout-no series impedance needed for basic clamp function. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22CA | Surface-mount SMB package; same VBR (20.9–23.1 V), lower PPPM = 600 W, higher IPPM = 23.9 A | Requires PCB rework for SMT placement; better suited for high-density layouts and automated assembly | Select SMBJ22CA when board space is constrained and SMT process is established; P4KE22C-E3/73 remains optimal for through-hole prototyping or legacy designs. |
| 1.5KE22CA | Higher PPPM = 1500 W; same DO-41 package; VBR = 20.9–23.1 V; VC = 33.2 V at 45.3 A | Delivers greater surge margin for high-energy threats but larger junction capacitance may affect high-speed signal lines | Choose 1.5KE22CA where IEC 61000-4-5 Level 5 (6 kV) immunity is mandated; P4KE22C-E3/73 balances cost, size, and 4 kV-level protection. |
Compared with SMBJ22CA and 1.5KE22CA, P4KE22C-E3/73 offers the lowest cost per unit and simplest through-hole integration for medium-energy surge protection, while maintaining full compatibility with existing DO-41 footprints and hand-soldering workflows.
Availability
P4KE22C-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line driver circuits requiring stable component supply and RoHS-compliant commercial-grade TVS protection.
Supply support for P4KE22C-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, MOSFETs, and passive components with emphasis on reliability and application-specific performance.
The P4KE series belongs to Vishay's TRANSZORB® TVS family, engineered for robust transient suppression in automotive, industrial, and telecom systems where bidirectional clamping, AEC-Q101 qualification, and proven surge endurance are essential.
FAQ
What does the "C" in P4KE22C-E3/73 signify?
The "C" suffix in P4KE22C-E3/73 indicates a bidirectional configuration, meaning the device suppresses transients of either polarity symmetrically across its terminals. Unlike unidirectional variants (e.g., P4KE22A), P4KE22C-E3/73 has no cathode marking and functions identically in both directions-critical for protecting AC-coupled or differential signal paths where polarity is undefined.
Is P4KE22C-E3/73 AEC-Q101 qualified?
No, P4KE22C-E3/73 is the commercial-grade variant with E3 suffix. The AEC-Q101 qualified version is designated P4KE22CHE3/73 (HE3 suffix), which undergoes additional stress testing for automotive under-hood applications. Both share identical electrical specs, but only the HE3 variant carries formal AEC-Q101 certification documented in Vishay's qualification reports.
What is the maximum clamping voltage of P4KE22C-E3/73 under surge conditions?
The maximum clamping voltage (VC) of P4KE22C-E3/73 is 30.6 V at 13.1 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per standard test conditions in the Vishay datasheet (Doc. #88365) and represents the upper limit of voltage imposed on the protected circuit during worst-case transient events.
Can P4KE22C-E3/73 be used in place of a unidirectional TVS like P4KE22A?
No-P4KE22C-E3/73 must not replace P4KE22A in circuits relying on DC polarity, such as DC power rail protection, because its bidirectional nature allows conduction in both directions. Using P4KE22C-E3/73 on a +12 V rail would create a short to ground during normal operation. Always match device polarity (A = unidirectional, C = bidirectional) to circuit topology.
What is the standoff voltage (VWM) rating for P4KE22C-E3/73?
The standoff voltage (VWM) for P4KE22C-E3/73 is 18.8 V, representing the maximum continuous reverse working voltage at which leakage current remains ≤1.0 µA. This rating ensures the device remains non-conductive during normal operation while providing sufficient margin below the 20.9 V minimum breakdown voltage to avoid false triggering.
P4KE22C-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):
- 17.8V
- Voltage - Breakdown (Min):
- 19.8V
- Voltage - Clamping (Max) @ Ipp:
- 31.9V
- Current - Peak Pulse (10/1000µs):
- 12.5A
- 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)
P4KE22C-E3/73 FAQ
1.How can I place an order for P4KE22C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE22C-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 P4KE22C-E3/73 reliable?
The price and inventory of P4KE22C-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 P4KE22C-E3/73 is usually 5 days.
3.What payment methods are accepted for P4KE22C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE22C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE22C-E3/73?
P4KE22C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE22C-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 P4KE22C-E3/73?
For technical support, including P4KE22C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE22C-E3/73 requirements.
6.How does Aetrix verify that P4KE22C-E3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE22C-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 P4KE22C-E3/73 meets industry standards.
7.What is the process for return or replacement of P4KE22C-E3/73?
All P4KE22C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE22C-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 P4KE22C-E3/73 part is unused and in its original packaging.
Return procedure for P4KE22C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE22C-E3/73 Tags
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