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Diodes Incorporated P6KE22CA-T
- Part No.:
- P6KE22CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE22CA-T.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:9,281
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Product details
Overview
P6KE22CA-T from Diodes Incorporated is a bidirectional 600W transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 18.8V reverse standoff voltage (VRWM), 20.9–23.1V breakdown range (VBR), 30.6V max clamping voltage (VC) at 20A peak pulse current, and DO-15 package with glass-passivated junction-used in automotive body control modules, industrial PLC I/O protection, and telecom power supply surge suppression.
For engineers reviewing the P6KE22CA-T datasheet, P6KE22CA-T pinout, P6KE22CA-T application, or P6KE22CA-T equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, unidirectional vs. bidirectional polarity requirements, 1.0ms 600W pulse handling capability, thermal derating above +25°C ambient, and RoHS-compliant lead-free plating compatibility with reflow profiles.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling protection of AC-coupled or floating signal paths without polarity biasing. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<5.0µA at VRWM), while the DO-15 package provides mechanical robustness and thermal dissipation via 15°C/W junction-to-lead resistance.
The device responds within <1.0ns to transients, clamping 8.3ms half-sine surges up to 100A (IFSM), and maintains steady-state power dissipation of 5.0W at TL = +75°C on 40mm² copper land. Pulse derating follows a linear curve down to zero power at +175°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W for 1.0ms non-repetitive waveform - defines maximum transient energy absorption before failure |
| Reverse Standoff Voltage | 18.8V - maximum continuous DC or RMS voltage applied without significant leakage conduction |
| Breakdown Voltage Range | 20.9–23.1V at 1.0mA test current - ensures reliable turn-on before protected circuit damage threshold |
| Max Clamping Voltage | 30.6V at 20A IPP - limits voltage seen by downstream components during surge events |
| Package | DO-15 - axial-leaded, molded plastic case rated UL 94V-0, supports manual or wave soldering |
| Operating Temperature | −55°C to +175°C - enables deployment in under-hood automotive or high-temp industrial environments |
| RoHS Compliance | Lead-free finish per EU Directive 2011/65/EU - meets environmental compliance for global electronics manufacturing |
Pinout & Package
DO-15 package: axial-leaded, cylindrical molded plastic body (25.4mm length, 5.5–7.62mm diameter), cathode band not marked on bidirectional version (P6KE22CA-T); terminals are non-polarized anode/cathode pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Conducts during negative-going surges; symmetrical with cathode for bidirectional operation |
| Cathode | Transient current entry (positive polarity) | Conducts during positive-going surges; no cathode band marking distinguishes bidirectional variant |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse rating | Supports IEC 61000-4-5 Level 4 (4kV/2Ω) surge immunity testing in power input stages |
| Glass-passivated junction | Ensures long-term parameter stability and low leakage drift over temperature and lifetime |
| Bidirectional configuration | Protects AC signals, differential buses (e.g., RS-485), or floating DC rails without polarity constraints |
| Fast response time | <1.0ns turn-on enables clamping before sensitive logic or analog circuits experience overvoltage stress |
| UL 94V-0 flammability rating | Prevents flame propagation during catastrophic failure under sustained overvoltage conditions |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protects microcontroller GPIO and CAN transceiver power pins against load dump and ISO 7637-2 pulses in vehicle door modules. IC Role / Device Role / Timing Role: Primary clamping element placed directly at connector entry point, shunting surge energy to chassis ground. Use Value: Limits clamped voltage to 30.6V, staying below 33V rail tolerance of automotive MCUs and ensuring ASIL-B functional safety compliance. | Use Scenario: Shields 24V DC digital input channels from field-wiring induced transients in factory automation cabinets. IC Role / Device Role / Timing Role: Front-end transient suppressor mounted adjacent to terminal block, preceding optocoupler isolation stage. Use Value: Withstands repeated 1kV/500Ω surges per IEC 61000-4-4, extending optocoupler lifetime and reducing false-trigger events. |
| Telecom Power Supply Input | Smart Meter AC Mains Interface |
Use Scenario: Guards secondary-side 12V/5V DC outputs of telecom rectifiers against back-fed surges from upstream AC line disturbances. IC Role / Device Role / Timing Role: Secondary-side TVS placed after bulk filter capacitors and before DC-DC converters. Use Value: 600W rating handles residual energy passing through primary MOVs, preventing converter IC latch-up or MOSFET avalanche failure. | Use Scenario: Installed across AC phase-neutral inputs of residential smart meters to meet IEC 61000-4-5 surge immunity requirements. IC Role / Device Role / Timing Role: Bidirectional clamping device used in conjunction with series impedance and filtering network. Use Value: Symmetric clamping ensures protection during both positive and negative half-cycle surges, critical for meter accuracy and metrology IC survival. |
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 | Same VRWM (18.8V) and VC (30.6V), but SMB package (surface-mount), 600W rating, lower IFSM (100A vs. P6KE's 100A) | Designed for PCB space-constrained designs; lacks axial lead mechanical robustness for high-vibration environments | Select when automated SMT assembly and board density outweigh need for manual repairability or high-shock mounting |
| 1.5KE22CA | Same DO-15 package and bidirectional function, but higher 1500W peak power, larger body (9.5mm diameter), and higher clamping (33.2V @ 45.5A) | Used where higher single-event energy (e.g., lightning-induced surges) must be absorbed without replacement | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 4 and requires margin beyond 600W |
Compared with SMBJ22CA and 1.5KE22CA, P6KE22CA-T offers optimal balance of axial-mount reliability, standardized DO-15 footprint, and precise 30.6V clamping for 24V nominal systems-making it preferred for cost-sensitive, vibration-prone, or serviceable industrial and automotive applications where 600W capacity suffices.
Availability
P6KE22CA-T is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controller (PLC) I/O protection, and telecom DC power supply surge suppression requiring stable component supply and legacy design continuity.
Supply support for P6KE22CA-T 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and integrated circuits, specializing in high-reliability protection, signal integrity, and power management solutions for industrial, automotive, and computing markets.
P6KE22CA-T belongs to Diodes' P6KE series of 600W axial TVS diodes-designed specifically for cost-effective, high-volume overvoltage protection in harsh-environment applications where DO-15 mechanical robustness and proven surge performance are essential.
FAQ
Is P6KE22CA-T still in active production?
No-Diodes Incorporated has officially discontinued the P6KE22CA-T and entire P6KE series (DS21502 Rev. 20-4, August 2024). Aetrix Electronics holds remaining authorized inventory and supports legacy design continuity, but no new production runs are planned. Customers should evaluate migration paths such as SMBJ22CA or 1.5KE22CA based on mechanical and electrical requirements.
What is the difference between P6KE22A-T and P6KE22CA-T?
P6KE22A-T is unidirectional (cathode-banded), conducting only during positive surges, while P6KE22CA-T is bidirectional (no cathode band), providing symmetrical clamping for both polarities. Their electrical specs-including VRWM (18.8V), VBR (20.9–23.1V), and VC (30.6V)-are identical. The "C" suffix explicitly denotes bidirectional construction per Diodes' ordering nomenclature.
Can P6KE22CA-T replace P6KE20CA-T in a 24V system?
Yes-with caution. P6KE22CA-T (VRWM = 18.8V) offers higher standoff than P6KE20CA-T (VRWM = 17.1V), improving noise immunity but reducing margin before clamping onset. Its 30.6V clamping remains safely below typical 33V-rated 24V-system ICs. Verify that system surge profile does not require tighter clamping voltage, and confirm layout allows same DO-15 footprint and lead spacing.
Does P6KE22CA-T meet AEC-Q200 for automotive use?
No-the P6KE22CA-T is not AEC-Q200 qualified. Diodes states that automotive-grade versions require specific change control, PPAP capability, and IATF 16949 manufacturing-none of which apply to standard P6KE devices. For AEC-Q200-compliant alternatives, contact Diodes' automotive team for qualified equivalents like the AEC-Q200-certified SMAJ22CA or SMCJ22CA series.
P6KE22CA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 20A
- 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-15
P6KE22CA-T FAQ
1.How can I place an order for P6KE22CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE22CA-T 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 P6KE22CA-T reliable?
The price and inventory of P6KE22CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE22CA-T is usually 5 days.
3.What payment methods are accepted for P6KE22CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE22CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE22CA-T?
P6KE22CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE22CA-T 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 P6KE22CA-T?
For technical support, including P6KE22CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE22CA-T requirements.
6.How does Aetrix verify that P6KE22CA-T is sourced from the original manufacturer or authorized distributors?
All P6KE22CA-T 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 P6KE22CA-T meets industry standards.
7.What is the process for return or replacement of P6KE22CA-T?
All P6KE22CA-T units undergo pre-shipment inspection (PSI). If there is an issue with P6KE22CA-T, 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 P6KE22CA-T part is unused and in its original packaging.
Return procedure for P6KE22CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE22CA-T Tags
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