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

Vishay General Semiconductor - Diodes Division P4KA22AHE3/54

Name: P4KA22AHE3/54
Brand: Vishay General Semiconductor - Diodes Division
SKU: P4KA22AHE3/54
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: P4KA22AHE3/54

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: DO-204AL, DO-41, Axial

Datasheet:: P4KA22AHE3/54.pdf

Description:: TVS DIODE 18.8VWM 30.6VC DO204AL

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Product details

Overview

P4KA22AHE3/54 from Vishay General Semiconductor is a uni-directional automotive-grade transient voltage suppressor (TVS) diode in DO-204AL (DO-41) package, featuring 20.9 V to 23.1 V breakdown voltage (V_BR), 30.6 V clamping voltage (V_C) at 13.1 A peak pulse current, 400 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for under-hood electronics protection.

For engineers reviewing the P4KA22AHE3/54 datasheet, P4KA22AHE3/54 pinout, P4KA22AHE3/54 application, or P4KA22AHE3/54 equivalent, key selection criteria include clamping performance under 10/1000 µs transients, junction temperature derating up to +185 °C, RoHS-compliant matte tin plating, and JESD201 Class 2 whisker resistance for high-reliability automotive PCBs.

Technical Context

The P4KA22AHE3/54 employs Vishay's patented PAR® construction for low incremental surge resistance and stable clamping across temperature. It operates exclusively in uni-directional polarity with cathode denoted by color band, and is rated for repetitive 0.01% duty cycle pulses per ANSI/IEEE C62.35 standards.

Designed for high-temperature stability, it maintains specified V_BR and V_C over -65 °C to +185 °C junction range, with thermal derating applied above T_A = 25 °C per Figure 2 and lead temperature limits defined in Figure 5.

Key Specifications

Parameter	Value and Actual Design Meaning
V_BR (min/max)	20.9 V / 23.1 V at 1.0 mA test current - defines precise voltage threshold where avalanche conduction begins
V_C @ I_PPM	30.6 V at 13.1 A - maximum voltage seen by protected circuit during 400 W transient event
P_PPM	400 W (10/1000 µs waveform) - peak surge energy handling capacity without failure
T_J max.	+185 °C - enables operation in engine compartment environments without thermal shutdown
V_WM	18.8 V - maximum continuous reverse working voltage before leakage exceeds 1 µA
Temp. Coeff. of V_BR	0.092 %/°C - quantifies drift in breakdown voltage per degree Celsius change

Pinout & Package

Package: DO-204AL (DO-41), molded epoxy case with UL 94 V-0 rating; matte tin-plated leads compliant with J-STD-002 and JESD22-B102; cathode indicated by axial color band.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Current entry point in forward bias; connected to system ground in uni-directional TVS configuration	Low-impedance path to ground during transient clamp; must be routed with minimal inductance
Cathode	Current exit point in forward bias; connected to protected line (e.g., CAN_H, LIN, sensor supply)	Defines polarity-sensitive connection - reversal prevents clamping and risks device failure

Key Features

Feature	Design Value
Patented PAR® construction	Reduces incremental surge resistance for tighter V_C tolerance and consistent clamping across production lots
AEC-Q101 qualification	Validated reliability for automotive under-hood applications including temperature cycling, humidity, and mechanical shock
10/1000 µs waveform capability	Meets ISO 7637-2 Pulse 1, 2a, 3a/b, and ISO 16750-2 load dump immunity requirements
JESD201 Class 2 whisker resistance	Prevents tin whisker growth under thermal stress, eliminating latent short-circuit risk in long-life modules

Applications

Automotive Power Line Protection	Industrial Sensor Interface Protection
Use Scenario: Suppressing load dump transients on 12 V battery-fed ECUs in passenger vehicles and commercial trucks. IC Role / Device Role / Timing Role: Uni-directional TVS placed between battery rail and input stage of power management IC or microcontroller. Use Value: Clamps 12 V system spikes to ≤30.6 V, preventing damage to downstream regulators and logic circuits rated for 3.3 V or 5 V operation.	Use Scenario: Protecting analog front-end inputs of pressure, temperature, or position sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Standoff protection element on sensor signal lines exposed to EMI and switching noise from nearby motor drives. Use Value: Limits induced surges to <31 V while maintaining <1 µA leakage at 18.8 V, preserving sensor accuracy and ADC reference integrity.
Automotive CAN Bus Protection	Consumer Appliance Motor Control
Use Scenario: Safeguarding CAN transceivers (e.g., TJA1042, SN65HVD230) against ESD and inductive kickback in body control modules. IC Role / Device Role / Timing Role: Secondary protection device placed upstream of integrated ESD clamps in CAN PHY layer. Use Value: Handles >400 W surges beyond internal transceiver limits, with 30.6 V clamping ensuring CAN_H/CAN_L differential swing remains within ±36 V common-mode range.	Use Scenario: Shielding microcontroller GPIOs and gate drivers from back-EMF when controlling universal motors in washing machines or HVAC blowers. IC Role / Device Role / Timing Role: Fast-response transient suppressor on motor driver supply rails and feedback sensing paths. Use Value: Responds in <1 ns to suppress 8.3 ms half-sine surges up to 40 A, preventing latch-up or permanent damage to 3.3 V logic interfaces.

Automotive Power Line Protection

Industrial Sensor Interface Protection

Use Scenario: Suppressing load dump transients on 12 V battery-fed ECUs in passenger vehicles and commercial trucks.

IC Role / Device Role / Timing Role: Uni-directional TVS placed between battery rail and input stage of power management IC or microcontroller.

Use Value: Clamps 12 V system spikes to ≤30.6 V, preventing damage to downstream regulators and logic circuits rated for 3.3 V or 5 V operation.

Use Scenario: Protecting analog front-end inputs of pressure, temperature, or position sensors in factory automation PLCs.

IC Role / Device Role / Timing Role: Standoff protection element on sensor signal lines exposed to EMI and switching noise from nearby motor drives.

Use Value: Limits induced surges to <31 V while maintaining <1 µA leakage at 18.8 V, preserving sensor accuracy and ADC reference integrity.

Automotive CAN Bus Protection

Consumer Appliance Motor Control

Use Scenario: Safeguarding CAN transceivers (e.g., TJA1042, SN65HVD230) against ESD and inductive kickback in body control modules.

IC Role / Device Role / Timing Role: Secondary protection device placed upstream of integrated ESD clamps in CAN PHY layer.

Use Value: Handles >400 W surges beyond internal transceiver limits, with 30.6 V clamping ensuring CAN_H/CAN_L differential swing remains within ±36 V common-mode range.

Use Scenario: Shielding microcontroller GPIOs and gate drivers from back-EMF when controlling universal motors in washing machines or HVAC blowers.

IC Role / Device Role / Timing Role: Fast-response transient suppressor on motor driver supply rails and feedback sensing paths.

Use Value: Responds in <1 ns to suppress 8.3 ms half-sine surges up to 40 A, preventing latch-up or permanent damage to 3.3 V logic interfaces.

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient suppression applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMAJ22A-E3/5A	Same DO-214AC (SMA) package; lower P_PPM (400 W same), but higher V_C (35.5 V @ 11.3 A); no AEC-Q101 qualification	Not qualified for automotive under-hood use; suitable only for industrial/commercial ambient conditions ≤125 °C	Select when cost sensitivity outweighs automotive qualification and thermal margin is sufficient
1.5KE22A	DO-201AD package; identical V_BR range and V_C, but larger footprint and 1.5 kW P_PPM; no JESD201 whisker testing	Used in legacy power supplies and telecom infrastructure; lacks automotive process controls and traceability	Choose for high-energy surge environments where board space permits larger case and qualification is non-mandatory

Compared with SMAJ22A-E3/5A and 1.5KE22A, the P4KA22AHE3/54 delivers verified AEC-Q101 reliability, tighter V_C tolerance, and JESD201 Class 2 whisker resistance - critical for automotive safety-critical modules requiring zero field failures over 15-year service life.

Availability

P4KA22AHE3/54 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, CAN/LIN bus nodes, and consumer appliance motor controllers requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for P4KA22AHE3/54 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive applications.

The P4KA22AHE3/54 belongs to Vishay's automotive TVS diode family engineered specifically for ISO 7637-2 and ISO 16750-2 compliance, targeting robust protection of 12 V and 24 V vehicle subsystems against load dump, jump start, and inductive switching events.

FAQ

What is the clamping voltage of the P4KA22AHE3/54 under a 10/1000 µs transient?

The P4KA22AHE3/54 has a maximum clamping voltage (V_C) of 30.6 V at 13.1 A peak pulse current (I_PPM) under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures protected circuits remain below critical voltage thresholds during surge events. The P4KA22AHE3/54 achieves this with low incremental surge resistance enabled by its PAR® construction.

Is the P4KA22AHE3/54 suitable for automotive under-hood applications?

Yes, the P4KA22AHE3/54 is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood automotive applications such as engine control modules, transmission control units, and body electronics. Its DO-204AL package meets UL 94 V-0 flammability requirements, and the HE3 suffix confirms JESD201 Class 2 whisker resistance - all validated per Vishay Document Number 88364.

What does the "HE3/54" suffix mean in P4KA22AHE3/54?

The "HE3" suffix indicates RoHS-compliant, high-reliability/automotive-grade construction with matte tin-plated leads meeting J-STD-002 and JESD22-B102 solderability standards, plus JESD201 Class 2 whisker resistance. The "/54" denotes packaging in 13-inch diameter paper tape and reel, with a base quantity of 5500 units - standard for automated SMT placement of the P4KA22AHE3/54.

How does the P4KA22AHE3/54 differ from the non-A version (P4KA22HE3/54)?

The P4KA22AHE3/54 features tighter V_BR tolerance (20.9–23.1 V vs. 19.8–24.2 V for P4KA22HE3/54) and lower clamping voltage (30.6 V vs. 31.9 V), reflecting enhanced process control for automotive-grade consistency. Both share DO-204AL packaging and AEC-Q101 qualification, but the "A" variant is specified for higher-reliability applications where parametric spread directly impacts system-level surge margin.

Can the P4KA22AHE3/54 be used in bi-directional configurations?

No, the P4KA22AHE3/54 is available in uni-directional polarity only, as explicitly stated in the Vishay datasheet. Its cathode is marked by an axial color band, and reverse-bias operation outside its specified V_WM (18.8 V) will cause avalanche conduction. For bi-directional protection, separate devices or dedicated bi-directional TVS arrays must be used - the P4KA22AHE3/54 is not rated for symmetrical clamping.

P4KA22AHE3/54 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Package/Case:: DO-204AL, DO-41, Axial

Series:: PAR®

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):: 13.1A

Power - Peak Pulse:: 400W

Power Line Protection:: No

Applications:: -

Capacitance @ Frequency:: -

Operating Temperature:: -65°C ~ 185°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AL (DO-41)

P4KA22AHE3/54 FAQ

1.How can I place an order for P4KA22AHE3/54 through Aetrix?

Please submit a Request for Quotation (RFQ) for P4KA22AHE3/54 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 P4KA22AHE3/54 reliable?

The price and inventory of P4KA22AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KA22AHE3/54 is usually 5 days.

3.What payment methods are accepted for P4KA22AHE3/54?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KA22AHE3/54 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for P4KA22AHE3/54?

P4KA22AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your P4KA22AHE3/54 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 P4KA22AHE3/54?

For technical support, including P4KA22AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KA22AHE3/54 requirements.

6.How does Aetrix verify that P4KA22AHE3/54 is sourced from the original manufacturer or authorized distributors?

All P4KA22AHE3/54 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 P4KA22AHE3/54 meets industry standards.

7.What is the process for return or replacement of P4KA22AHE3/54?

All P4KA22AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KA22AHE3/54, 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 P4KA22AHE3/54 part is unused and in its original packaging.

Return procedure for P4KA22AHE3/54:

1.Submit a request within 90 days.

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

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