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Diodes Incorporated P6KE22A-T
- Part No.:
- P6KE22A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE22A-T.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:4,256
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Product details
Overview
P6KE22A-T from Diodes Incorporated is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 22V reverse standoff voltage (VRWM), 20.9V minimum breakdown voltage (VBR), 30.6V maximum clamping voltage (VC) at 20A peak pulse current, and DO-15 axial package. It is used in industrial power supplies to protect rectifier outputs and DC bus lines against ESD and lightning-induced surges.
For engineers reviewing the P6KE22A-T datasheet, P6KE22A-T pinout, P6KE22A-T application, or P6KE22A-T equivalent, this page delivers verified electrical parameters, clamping behavior under 10/1000µs transients, thermal derating curves, DO-15 mechanical dimensions, and direct alternatives with validated voltage and power matching.
Technical Context
The P6KE22A-T operates as a silicon avalanche diode that enters controlled breakdown above its specified VBR (20.9–23.1V), limiting transient energy by shunting surge current to ground. Its 30.6V clamping voltage at 20A IPP ensures downstream ICs see sub-31V stress during standardized 1.0ms 600W pulses.
Thermal design relies on its RθJA of 75°C/W and steady-state PD of 5.0W at TL = +75°C, requiring adequate PCB copper area for heat dissipation. The device responds in <1.0ns to transients and maintains <5.0µA leakage at VRWM, enabling low-power standby compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W for 1.0ms non-repetitive 10/1000µs waveform - defines maximum transient energy absorption capability |
| Reverse Standoff Voltage (VRWM) | 22V - maximum continuous DC or RMS voltage the device blocks without clamping |
| Breakdown Voltage (VBR) | 20.9V min / 23.1V max @ 1.0mA - precise voltage threshold where avalanche conduction begins |
| Clamping Voltage (VC) | 30.6V max @ 20A IPP - peak voltage seen across protected circuit during full-rated surge |
| Peak Pulse Current (IPP) | 20A @ 10/1000µs - maximum surge current the device safely diverts without failure |
| Leakage Current (IR) | <5.0µA @ 22V - negligible standby power loss and minimal impact on high-impedance sensing nodes |
| Package | DO-15 axial leaded - industry-standard through-hole package with 0.4g mass and UL 94V-0 flammability rating |
Pinout & Package
Package: DO-15 molded plastic case with plated leads; cathode indicated by band; 9.5mm lead length; UL 94V-0 rated; moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge return path to ground | Connected to system ground or low-impedance return plane to complete clamping loop |
| Cathode | Protected line connection | Connected directly to the node requiring overvoltage protection (e.g., +24V rail input) |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 (4kV) surges on 24V industrial buses |
| Glass passivated die construction | Ensures stable VBR and low leakage over temperature and long-term operation |
| Fast response time <1ns | Prevents voltage overshoot before clamping engages, protecting sensitive gate drivers and ADC inputs |
| RoHS-compliant lead finish | Supports lead-free reflow assembly and meets EU environmental compliance requirements |
Applications
| Industrial Power Supply Input | Automotive Body Control Module |
|---|---|
Use Scenario: 24V DC input stage of DIN-rail mounted PLC power supply exposed to load dump and ISO 7637-2 transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between input fuse and bulk capacitor. Use Value: Limits transient voltage to ≤30.6V, preventing damage to upstream rectifier diodes and downstream DC-DC controller ICs. |
Use Scenario: LIN bus line protection in door module ECUs subject to ESD and battery reversal events. IC Role / Device Role / Timing Role: Unidirectional TVS connected between LIN line and chassis ground. Use Value: Clamps negative transients to −0.7V (forward drop) and positive spikes to ≤30.6V, preserving LIN transceiver integrity. |
| Telecom Remote Radio Unit | Factory Automation I/O Terminal |
Use Scenario: +48V DC power feed to outdoor RRH units vulnerable to induced lightning surges. IC Role / Device Role / Timing Role: First-stage protection before DC-DC converter and PoE interface ICs. Use Value: Absorbs up to 600W for 1ms, maintaining output regulation and avoiding latch-up in PMICs. |
Use Scenario: Digital input channel protection in modular I/O systems receiving 24V sensor signals. IC Role / Device Role / Timing Role: Point-of-entry TVS on each isolated digital input pin. Use Value: Prevents false triggering and latch-up in optocoupler input stages during EFT bursts (IEC 61000-4-4). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A-T | Same VRWM (22V) and VC (33.2V), but 600W in smaller SMB package; lower RθJA (50°C/W) | Better suited for space-constrained PCBs; requires surface-mount reflow, not through-hole | Select when board real estate is limited and SMT assembly is available. |
| 1.5KE22A-T | Same DO-15 package and VRWM, but higher 1500W rating and 35.5V VC at 42.5A IPP | Provides greater surge margin for high-energy environments (e.g., railway traction power) | Select when legacy DO-15 footprint must be retained and surge energy exceeds 600W. |
Compared with SMBJ22A-T, P6KE22A-T offers proven through-hole mechanical reliability and easier manual rework; compared with 1.5KE22A-T, it trades surge capacity for tighter clamping and lower cost in standard industrial applications.
Availability
P6KE22A-T is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, telecom remote radio units, and factory automation I/O terminals requiring stable component supply despite its obsolete status per Diodes' notice.
Supply support for P6KE22A-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 analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
The P6KE series belongs to Diodes' transient voltage suppressor portfolio, engineered specifically for cost-effective, high-reliability overvoltage protection in industrial, automotive, and communications infrastructure applications.
FAQ
Is P6KE22A-T still in active production?
No - Diodes Incorporated has officially discontinued the P6KE22A-T, marking it as obsolete in DS21502 Rev. 20-4 (August 2024). However, Aetrix Electronics maintains legacy inventory with full traceability and supports ongoing production programs via controlled allocation and cross-reference guidance.
What is the difference between P6KE22A-T and P6KE22CA-T?
P6KE22A-T is unidirectional (cathode-banded), clamping only positive transients above VBR and conducting forward current below −0.7V; P6KE22CA-T is bidirectional, symmetrically clamping both polarities with identical 22V standoff and ~30.6V clamping in either direction, making it suitable for AC-coupled or floating signal lines.
Can P6KE22A-T be used in automotive AEC-Q200 qualified designs?
While the P6KE22A-T itself is not AEC-Q200 certified, Diodes states that automotive-grade versions (with PPAP capability and IATF 16949 manufacturing) are available upon request. For qualification-critical applications, engineers must contact Diodes directly to obtain the AEC-Q200 variant and supporting documentation.
How does thermal derating affect P6KE22A-T's surge capability at elevated ambient temperatures?
Per Figure 4 in DS21502, P6KE22A-T's peak pulse power derates linearly: at +100°C ambient, its 600W rating drops to ~50% (300W); at +150°C, it falls to ~25% (150W). Designers must apply this curve when sizing PCB copper area and verifying worst-case surge survival in high-temperature enclosures.
P6KE22A-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:
- 1
- Bidirectional Channels:
- -
- 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
P6KE22A-T FAQ
1.How can I place an order for P6KE22A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE22A-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 P6KE22A-T reliable?
The price and inventory of P6KE22A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE22A-T is usually 5 days.
3.What payment methods are accepted for P6KE22A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE22A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE22A-T?
P6KE22A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE22A-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 P6KE22A-T?
For technical support, including P6KE22A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE22A-T requirements.
6.How does Aetrix verify that P6KE22A-T is sourced from the original manufacturer or authorized distributors?
All P6KE22A-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 P6KE22A-T meets industry standards.
7.What is the process for return or replacement of P6KE22A-T?
All P6KE22A-T units undergo pre-shipment inspection (PSI). If there is an issue with P6KE22A-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 P6KE22A-T part is unused and in its original packaging.
Return procedure for P6KE22A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE22A-T Tags
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ESD9B5.0ST5G
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