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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > TVS Diodes

Vishay General Semiconductor - Diodes Division P6KE22-E3/54

Name: P6KE22-E3/54
Brand: Vishay General Semiconductor - Diodes Division
SKU: P6KE22-E3/54
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: P6KE22-E3/54

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: DO-204AC, DO-15, Axial

Datasheet:: P6KE22-E3/54.pdf

Description:: TVS DIODE 17.8VWM 31.9VC DO204AC

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Product details

Overview

P6KE22-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 20.9 V minimum breakdown voltage (V_BR), 30.6 V maximum clamping voltage (V_C) at 19.6 A peak pulse current, 600 W peak pulse power rating (10/1000 µs), and DO-204AC (DO-15) package. It is used to safeguard MOSFETs, ICs, and sensor interfaces against inductive switching transients in automotive and industrial control systems.

For engineers reviewing the P6KE22-E3/54 datasheet, P6KE22-E3/54 pinout, P6KE22-E3/54 application, or P6KE22-E3/54 equivalent, key selection criteria include its 18.8 V standoff voltage (V_WM), 1.0 µA max reverse leakage at V_WM, AEC-Q101 qualification (E3 suffix denotes commercial grade; HE3 required for automotive), thermal resistance of 20 °C/W (junction-to-lead), and compatibility with J-STD-002 solderability standards.

Technical Context

The P6KE22-E3/54 operates as a silicon avalanche diode with glass-passivated junction, enabling sub-nanosecond response to ESD and surge events. Its unidirectional polarity-marked by a cathode band-defines forward conduction during overvoltage clamping while blocking reverse current until breakdown.

It delivers 600 W peak pulse power under standardized 10/1000 µs waveform conditions with 0.01 % duty cycle, and exhibits low incremental surge resistance due to optimized chip geometry. The device's 175 °C maximum junction temperature and 20 °C/W R_θJL support reliable operation in thermally constrained PCB layouts without active cooling.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM (Stand-off Voltage)	18.8 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for normal circuit operation
V_BR (Breakdown Voltage)	20.9–23.1 V @ 1.0 mA - Guaranteed avalanche initiation range; ensures predictable clamping onset
V_C (Clamping Voltage)	30.6 V @ 19.6 A - Maximum voltage seen by protected circuit during 10/1000 µs surge; defines worst-case stress level
P_PPM (Peak Pulse Power)	600 W - Sustained transient energy absorption capability under standard waveform; enables robust IEC 61000-4-5 Level 3 compliance
I_PPM (Peak Pulse Current)	19.6 A - Corresponding surge current at V_C; determines minimum series impedance needed for coordination with upstream fuses
T_J max.	175 °C - Maximum allowable junction temperature; supports operation in under-hood automotive or high-ambient industrial environments
R_θJL	20 °C/W - Junction-to-lead thermal resistance; enables accurate thermal design when mounted on copper pour or heatsinked leads

Pinout & Package

Package: DO-204AC (DO-15), axial leaded, molded epoxy case meeting UL 94 V-0 flammability rating. Matte tin-plated leads comply with J-STD-002 solderability and JESD 201 Class 1A whisker resistance (E3 suffix).

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal during clamping	Connected to lower-potential side (e.g., GND or return path); conducts surge current toward ground when V_AK exceeds V_BR
Cathode	Reverse-biased terminal during normal operation	Marked with color band; connected to protected line (e.g., 24 V rail); blocks current until transient exceeds V_BR

Key Features

Feature	Design Value
Glass-passivated junction	Enables stable, repeatable avalanche characteristics over lifetime and temperature; eliminates surface degradation risks in humid environments
600 W peak pulse power (10/1000 µs)	Supports protection against severe load dump and inductive kick events per ISO 7637-2 Pulse 5a without derating
AEC-Q101 qualified variant available (HE3 suffix)	Confirms reliability for automotive electronics; P6KE22-E3/54 is commercial-grade but shares identical die and construction
Low clamping ratio (V_C/V_BR ≈ 1.32)	Minimizes overvoltage overshoot during clamping; reduces risk of secondary damage to downstream CMOS inputs
1.0 µA max reverse leakage at V_WM	Prevents excessive standby current in battery-powered systems; avoids unnecessary drain on 12 V or 24 V supplies

Applications

Automotive Power Rail Protection	Industrial Sensor Interface Protection
Use Scenario: 12 V/24 V supply lines in engine control units exposed to load dump transients up to 60 V and 100 ms duration. IC Role / Device Role / Timing Role: Primary shunt clamp placed directly across input terminals of DC-DC converters or LDOs. Use Value: Limits transient voltage to ≤30.6 V, preventing latch-up or gate oxide rupture in downstream regulators rated for 36 V absolute maximum.	Use Scenario: Analog output lines (e.g., 4–20 mA current loop) connecting PLC analog modules to field transmitters in factory automation. IC Role / Device Role / Timing Role: Bidirectional protection element (using CA variant) or unidirectional clamp referenced to system ground. Use Value: Clamps fast-rising ESD events (<1 ns rise time) to safe levels before they reach precision op-amps or ADC front-ends, preserving measurement accuracy.
Consumer Power Adapter Input Stage	Telecom Line Card Surge Protection
Use Scenario: Secondary-side DC output of wall adapters powering USB-C PD controllers or PMICs sensitive to overvoltage. IC Role / Device Role / Timing Role: Final-stage overvoltage limiter after bulk capacitance, positioned before connector pins. Use Value: Absorbs 600 W surges without failure, maintaining <1.0 µA leakage to avoid compromising no-load efficiency targets below 30 mW.	Use Scenario: TIP/RING lines entering VoIP gateway boards subjected to lightning-induced surges per ITU-T K.20/21. IC Role / Device Role / Timing Role: First-line defense in hybrid coupler interface, coordinated with gas discharge tubes (GDTs) for staged protection. Use Value: Fast response (<1 ns) initiates clamping before GDT fires, limiting let-through voltage to <35 V during initial surge phase.

Automotive Power Rail Protection

Industrial Sensor Interface Protection

Use Scenario: 12 V/24 V supply lines in engine control units exposed to load dump transients up to 60 V and 100 ms duration.

IC Role / Device Role / Timing Role: Primary shunt clamp placed directly across input terminals of DC-DC converters or LDOs.

Use Value: Limits transient voltage to ≤30.6 V, preventing latch-up or gate oxide rupture in downstream regulators rated for 36 V absolute maximum.

Use Scenario: Analog output lines (e.g., 4–20 mA current loop) connecting PLC analog modules to field transmitters in factory automation.

IC Role / Device Role / Timing Role: Bidirectional protection element (using CA variant) or unidirectional clamp referenced to system ground.

Use Value: Clamps fast-rising ESD events (<1 ns rise time) to safe levels before they reach precision op-amps or ADC front-ends, preserving measurement accuracy.

Consumer Power Adapter Input Stage

Telecom Line Card Surge Protection

Use Scenario: Secondary-side DC output of wall adapters powering USB-C PD controllers or PMICs sensitive to overvoltage.

IC Role / Device Role / Timing Role: Final-stage overvoltage limiter after bulk capacitance, positioned before connector pins.

Use Value: Absorbs 600 W surges without failure, maintaining <1.0 µA leakage to avoid compromising no-load efficiency targets below 30 mW.

Use Scenario: TIP/RING lines entering VoIP gateway boards subjected to lightning-induced surges per ITU-T K.20/21.

IC Role / Device Role / Timing Role: First-line defense in hybrid coupler interface, coordinated with gas discharge tubes (GDTs) for staged protection.

Use Value: Fast response (<1 ns) initiates clamping before GDT fires, limiting let-through voltage to <35 V during initial surge phase.

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	Same V_BR range (20.9–23.1 V), but SMB package (surface-mount); 600 W rating, 20.9 V V_WM, 30.6 V V_C at 19.6 A	Requires PCB re-layout for SMD footprint; better thermal performance via pad copper but lacks axial lead mechanical robustness	Select for space-constrained designs where automated assembly and higher board density are prioritized over manual serviceability
1.5KE22A	Same DO-204AC package and electrical specs, but 1.5 kW peak power rating; larger die, higher I_PPM (43.3 A), same V_C (30.6 V)	Overqualified for 600 W needs; higher cost and larger junction capacitance may affect high-speed signal integrity	Select only when future-proofing against higher-energy threats or when legacy 1.5KE footprint compatibility is mandatory

Compared with SMBJ22A and 1.5KE22A, the P6KE22-E3/54 offers optimal balance of axial-leaded serviceability, proven 600 W surge handling, and commercial-grade cost structure-making it ideal for mid-volume industrial power supplies where through-hole assembly and thermal margin are design priorities.

Availability

P6KE22-E3/54 is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, consumer adapter outputs, and telecom line card protection requiring stable component supply across multi-year production cycles.

Supply support for P6KE22-E3/54 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, TVS devices, and optoelectronics with emphasis on reliability, power handling, and automotive qualification.

The P6KE series belongs to Vishay's TRANSZORB® TVS family, engineered for cost-effective, high-surge-capability protection in commercial and industrial power and signal conditioning applications where rapid transient response and stable clamping are critical.

FAQ

What is the standoff voltage (V_WM) of the P6KE22-E3/54, and why does it matter?

The P6KE22-E3/54 has a standoff voltage (V_WM) of 18.8 V, meaning it remains non-conductive up to this DC or RMS voltage under normal operation. This value ensures minimal leakage current (<1.0 µA) while allowing safe margin below the 20.9 V minimum breakdown threshold. Selecting a V_WM correctly prevents false triggering during nominal supply fluctuations-critical for protecting 24 V industrial rails where overdesign could cause unnecessary conduction.

Is the P6KE22-E3/54 suitable for automotive applications?

The P6KE22-E3/54 itself is commercial-grade (E3 suffix), not AEC-Q101 qualified. However, the identical die and construction are offered as P6KE22HE3/54 (HE3 suffix), which is AEC-Q101 qualified for automotive use. Engineers must specify HE3 for under-hood or safety-critical vehicle systems; the E3 version is appropriate for non-automotive industrial or consumer applications where qualification is not mandated.

How does the clamping voltage (V_C) of the P6KE22-E3/54 compare to its breakdown voltage (V_BR)?

The P6KE22-E3/54 has a minimum V_BR of 20.9 V and a maximum V_C of 30.6 V at 19.6 A, yielding a clamping ratio of ~1.46. This ratio reflects the voltage rise across the dynamic impedance during surge conduction. A lower ratio indicates tighter clamping control-here, 30.6 V ensures protected circuits (e.g., 36 V-rated regulators) remain within safe operating limits even during full-rated 600 W transients.

What is the thermal resistance of the P6KE22-E3/54, and how does it impact layout?

The P6KE22-E3/54 has a typical junction-to-lead thermal resistance (R_θJL) of 20 °C/W. This means each watt dissipated raises the junction temperature 20 °C above the lead temperature. In practice, designers should solder leads to ≥10 mm² copper pads per lead and avoid narrow traces to maintain lead temperature near ambient-ensuring the 175 °C max junction temperature is not exceeded during repetitive surge events.

Can the P6KE22-E3/54 be used in bidirectional configurations?

No-the P6KE22-E3/54 is unidirectional, indicated by its "A" suffix and cathode band marking. For bidirectional protection (e.g., AC lines or differential data buses), the CA-suffixed variant P6KE22CA must be used. That part provides symmetrical clamping in both polarities with identical V_BR and V_C values, whereas the P6KE22-E3/54 conducts only in reverse breakdown and blocks forward current beyond its ~3.5 V forward voltage.

P6KE22-E3/54 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Package/Case:: DO-204AC, DO-15, Axial

Series:: TransZorb®

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: Zener

Unidirectional Channels:: 1

Bidirectional Channels:: -

Voltage - Reverse Standoff (Typ):: 17.8V

Voltage - Breakdown (Min):: 19.8V

Voltage - Clamping (Max) @ Ipp:: 31.9V

Current - Peak Pulse (10/1000µs):: 18.8A

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-204AC (DO-15)

P6KE22-E3/54 FAQ

1.How can I place an order for P6KE22-E3/54 through Aetrix?

Please submit a Request for Quotation (RFQ) for P6KE22-E3/54 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 P6KE22-E3/54 reliable?

The price and inventory of P6KE22-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE22-E3/54 is usually 5 days.

3.What payment methods are accepted for P6KE22-E3/54?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE22-E3/54 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for P6KE22-E3/54?

P6KE22-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your P6KE22-E3/54 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 P6KE22-E3/54?

For technical support, including P6KE22-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE22-E3/54 requirements.

6.How does Aetrix verify that P6KE22-E3/54 is sourced from the original manufacturer or authorized distributors?

All P6KE22-E3/54 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 P6KE22-E3/54 meets industry standards.

7.What is the process for return or replacement of P6KE22-E3/54?

All P6KE22-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE22-E3/54, 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 P6KE22-E3/54 part is unused and in its original packaging.

Return procedure for P6KE22-E3/54:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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