P4SMA22CA BK Equivalent & Substitute Parts

Part Overview

The P4SMA22CA BK is a transient voltage suppressor (TVS) diode manufactured by Central Semiconductor Corp, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 22V reverse standoff voltage with a 35.5V maximum clamping voltage and 11.2A peak pulse current capability in a compact SMA package.

The P4SMA22CA BK is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

P4SMA22CA BK

Central Semiconductor CorpIn Stock: 923P4SMA22CA BK Datasheet

Current PartRFQ

SMAJ22CA-13-F

Diodes IncorporatedIn Stock: 4615SMAJ22CA-13-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P4SMA22CA BK is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 22V
• Voltage - Breakdown (Min): 24.4V
• Voltage - Clamping (Max) @ Ipp: 35.5V
• Current - Peak Pulse (10/1000µs): 11.2A
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC, SMA
• Bidirectional Channels: 1
• Type: Zener
• Operating Temperature Range: -55°C ~ 150°C (TJ)

The SMAJ22CA-13-F from Diodes Incorporated meets all specified electrical and mechanical parameters, making it a direct functional equivalent. This substitute maintains identical voltage ratings, current handling, power dissipation, and thermal operating range within the same SMA package footprint.

Parameter Comparison

Engineering Selection Recommendations

The SMAJ22CA-13-F is the recommended substitute for the obsolete P4SMA22CA BK. This selection is based on:

• Complete electrical parameter equivalence across all voltage, current, and power specifications
• Identical mechanical package (DO-214AC, SMA) ensuring PCB footprint compatibility
• Active product status with established supply chain availability (4590 pcs in stock versus 822 pcs for the obsolete part)
• RoHS3 compliance and REACH unaffected status, meeting modern regulatory requirements
• Identical thermal operating range (-55°C ~ 150°C)

The substitute part maintains full functional compatibility with existing circuit designs without requiring PCB layout modifications or design re-qualification.

Frequently Asked Questions (FAQ)

Q: Can SMAJ22CA-13-F be used as a direct replacement for P4SMA22CA BK without circuit modifications?

A: Yes. The SMAJ22CA-13-F is electrically and mechanically equivalent. All voltage ratings, current handling, power dissipation, and package specifications are identical. No circuit modifications are required.

Q: Are there any differences in packaging or tape specifications?

A: The main part (P4SMA22CA BK) packaging is not specified in available data. The substitute (SMAJ22CA-13-F) is supplied in Tape & Reel (TR) format. Both use the identical DO-214AC, SMA package footprint. Verify tape specifications with your procurement requirements if reel format is critical.

Q: What is the significance of the product status difference?

A: The P4SMA22CA BK is obsolete, meaning Central Semiconductor Corp no longer manufactures or supports this part. The SMAJ22CA-13-F is active, ensuring long-term availability, technical support, and supply chain continuity.

Q: Are there compliance or certification differences?

A: The substitute part (SMAJ22CA-13-F) carries RoHS3 compliance and REACH unaffected status. The main part status is not specified. Modern applications typically require RoHS3 compliance, making the substitute advantageous for new designs and regulatory adherence.

Q: Can this part be used in power line protection applications?

A: No. Both the main part and substitute are designated for general-purpose applications only. Power line protection is not supported.