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Vishay General Semiconductor - Diodes Division P4KE22CHE3/73
- Part No.:
- P4KE22CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE22CHE3/73.pdf
- Description:
- TVS DIODE 17.8VWM 31.9VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,020
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Product details
Overview
P4KE22CHE3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for primary overvoltage protection of sensitive electronics. It features a 20.9 V minimum and 23.1 V maximum breakdown voltage (VBR) at 1.0 mA test current, 18.8 V stand-off voltage (VWM), 30.6 V clamping voltage (VC) at 13.1 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the P4KE22CHE3/73 datasheet, P4KE22CHE3/73 pinout, P4KE22CHE3/73 application, or P4KE22CHE3/73 equivalent, key selection criteria include its AEC-Q101 qualification, 175 °C max junction temperature, 1.0 μA max reverse leakage at VWM, DO-41 mechanical compatibility, and verified clamping performance under repetitive surge conditions per IEC 61000-4-5.
Technical Context
This device operates as a silicon avalanche diode, leveraging glass-passivated junction technology to achieve fast response (<1 ns) and low dynamic impedance during transient events. Its unidirectional polarity-marked by cathode band-enables integration into DC-biased circuits where reverse conduction must be blocked until clamping threshold is exceeded.
The P4KE22CHE3/73 is rated for 400 W peak pulse power (10/1000 μs), derated linearly above 25 °C ambient, with thermal resistance of 66 °C/W junction-to-lead and 100 °C/W junction-to-ambient (LLead = 10 mm). It supports 40 A non-repetitive forward surge current (8.3 ms half-sine) and exhibits +0.092 %/°C temperature coefficient of VBR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 20.9 V / 23.1 V at 1.0 mA - defines precise clamping onset window for reliable overvoltage detection |
| VWM | 18.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC at IPPM | 30.6 V at 13.1 A - actual clamped voltage seen by protected circuit during 400 W transient |
| PPPM | 400 W - peak surge energy absorption capability with 0.01 % duty cycle, compliant with IEC 61000-4-5 |
| TJ max | +175 °C - enables operation in under-hood automotive and high-temperature industrial environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: DO-41 (DO-204AL), molded epoxy body with matte tin-plated leads; RoHS-compliant and qualified to J-STD-002/JESD 22-B102 solderability standards. Cathode indicated by color band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional TVS configuration |
| Cathode | Clamping terminal | Connected to protected line (e.g., 24 V rail or CAN-H); conducts avalanche current when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 400 W peak pulse power (10/1000 μs) | Supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 surges |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., inductive switch-off spikes) |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V/24 V battery-supplied ECUs exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping device placed upstream of LDOs and microcontrollers to limit input voltage to safe levels. Use Value: Clamps transients up to 30.6 V at 13.1 A, preventing damage to downstream 3.3 V or 5 V logic while maintaining AEC-Q101 compliance. |
Use Scenario: Analog output lines (4–20 mA, 0–10 V) from pressure/temperature sensors in factory automation. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; this unidirectional part used on DC-biased sensor supply lines. Use Value: Limits induced surges from nearby motor drives or relay switching without affecting normal 18.8 V operating margin. |
| Consumer Power Adapter Input Stage | Telecom Line Card Surge Protection |
Use Scenario: AC-DC adapter primary-side rectifier output subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS after MOV, providing precise clamping where tighter VC tolerance is required. Use Value: 30.6 V clamping voltage ensures downstream capacitors and controllers remain within 35 V absolute maximum ratings. |
Use Scenario: DC feed lines powering remote DSL or PoE-powered devices in telecom cabinets. IC Role / Device Role / Timing Role: Standoff-rated protection element on -48 V or +24 V distribution bus. Use Value: Withstands repeated 10/1000 μs surges up to 400 W while maintaining <1.0 μA leakage at 18.8 V, minimizing standby power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A | DO-214AA package, 22 V nominal VBR, same 400 W rating but higher IPPM (18.2 A) and lower VC (35.5 V) | Surface-mount alternative requiring PCB rework; better suited for high-density layouts | Select SMBJ22A when board space is constrained and reflow assembly is preferred over through-hole. |
| 1.5KE22A | Same DO-41 package, 22 V nominal VBR, but 1500 W peak power rating and higher VC (36.5 V) | Higher-energy surge handling; used where longer-duration transients dominate (e.g., utility metering) | Choose 1.5KE22A only if system-level testing confirms need for >400 W capability and layout accommodates larger thermal mass. |
Compared with SMBJ22A and 1.5KE22A, the P4KE22CHE3/73 offers optimal balance of AEC-Q101 qualification, through-hole manufacturability, and precise 30.6 V clamping - making it the preferred choice for cost-sensitive, high-reliability automotive and industrial designs where DO-41 footprint is retained.
Availability
P4KE22CHE3/73 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal conditioning, and telecom power feed protection requiring stable component supply across extended production lifecycles.
Supply support for P4KE22CHE3/73 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P4KE22CHE3/73 belongs to Vishay's TRANSZORB® TVS family, engineered for robust transient suppression in harsh environments - particularly targeting automotive, industrial, and telecom systems where AEC-Q101 validation and repeatable clamping behavior are mandatory.
FAQ
What is the breakdown voltage range of the P4KE22CHE3/73?
The P4KE22CHE3/73 has a specified breakdown voltage (VBR) range of 20.9 V to 23.1 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures consistent clamping onset across production lots and supports reliable design margining in 24 V systems where 18.8 V stand-off allows headroom for ripple and drift.
Is the P4KE22CHE3/73 suitable for automotive applications?
Yes, the P4KE22CHE3/73 is AEC-Q101 qualified and explicitly rated for automotive use. Its construction - glass-passivated junction, DO-41 package with matte tin leads, and 175 °C max junction temperature - meets requirements for engine bay, chassis, and body control modules. The HE3 suffix confirms automotive-grade qualification per the Vishay ordering nomenclature.
What does the "HE3" suffix indicate in P4KE22CHE3/73?
The "HE3" suffix in P4KE22CHE3/73 denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. It distinguishes this automotive-grade version from commercial "E3" variants (e.g., P4KE22AE3/73), which lack AEC-Q101 validation and Class 2 tin whisker mitigation.
How does the clamping voltage of P4KE22CHE3/73 compare to its breakdown voltage?
The P4KE22CHE3/73 clamps at 30.6 V when subjected to its rated 13.1 A peak pulse current (10/1000 μs), which is approximately 33 % above its minimum VBR of 20.9 V. This controlled voltage overshoot ensures protected ICs see no more than 30.6 V during surge events, well within typical 35 V absolute maximum ratings of automotive-grade regulators and interface ICs.
Can P4KE22CHE3/73 be used in bidirectional configurations?
No, the P4KE22CHE3/73 is a unidirectional TVS diode, identified by its cathode band marking. For bidirectional protection, Vishay specifies the CA-suffix variant (e.g., P4KE22CA). Using P4KE22CHE3/73 in AC or floating-bias applications would result in unintended forward conduction and failure to suppress negative-going transients.
P4KE22CHE3/73 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KE22CHE3/73 FAQ
1.How can I place an order for P4KE22CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE22CHE3/73 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 P4KE22CHE3/73 reliable?
The price and inventory of P4KE22CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE22CHE3/73 is usually 5 days.
3.What payment methods are accepted for P4KE22CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE22CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE22CHE3/73?
P4KE22CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE22CHE3/73 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 P4KE22CHE3/73?
For technical support, including P4KE22CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE22CHE3/73 requirements.
6.How does Aetrix verify that P4KE22CHE3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE22CHE3/73 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 P4KE22CHE3/73 meets industry standards.
7.What is the process for return or replacement of P4KE22CHE3/73?
All P4KE22CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE22CHE3/73, 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 P4KE22CHE3/73 part is unused and in its original packaging.
Return procedure for P4KE22CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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