P4SMA7.0CA BK Equivalent & Substitute Parts

Part Overview

The P4SMA7.0CA 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 7V reverse standoff voltage with a 12V maximum clamping voltage and 33.3A peak pulse current capability in a compact SMA package.

The P4SMA7.0CA BK is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades where this protection function remains required.

Substiute Parts

P4SMA7.0CA BK

Central Semiconductor CorpIn Stock: 1142P4SMA7.0CA BK Datasheet

Current PartRFQ

SMAJ7.0CA-13-F

Diodes IncorporatedIn Stock: 104190SMAJ7.0CA-13-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P4SMA7.0CA BK is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 7V (nominal)
• Voltage - Clamping (Max) @ Ipp: 12V
• Current - Peak Pulse (10/1000µs): 33.3A
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC, SMA (surface mount)
• Bidirectional Channels: 1
• Operating Temperature Range: -55°C ~ 150°C (TJ)

The substitute part SMAJ7.0CA-13-F from Diodes Incorporated meets all these electrical and mechanical specifications, making it a direct functional equivalent for the obsolete P4SMA7.0CA BK.

Parameter Comparison

Engineering Selection Recommendations

The SMAJ7.0CA-13-F is the direct substitute for the P4SMA7.0CA BK. This part is manufactured by Diodes Incorporated and maintains active product status, ensuring ongoing availability and supply chain reliability.

The substitute part is RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. Both components share identical electrical performance specifications and the same SMA surface mount package, enabling direct replacement without circuit redesign or PCB layout modifications.

Frequently Asked Questions (FAQ)

Q: Can SMAJ7.0CA-13-F be used as a direct replacement for P4SMA7.0CA BK?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical voltage ratings (7V standoff, 12V clamping), current handling (33.3A peak pulse), power dissipation (400W), package type (DO-214AC, SMA), and operating temperature range (-55°C ~ 150°C). No circuit modifications are required.

Q: What is the primary difference between these two parts?

A: The P4SMA7.0CA BK is obsolete, while SMAJ7.0CA-13-F is an active product. The substitute offers improved supply chain availability and compliance with current RoHS3 and REACH standards.

Q: Are there packaging differences between these parts?

A: The P4SMA7.0CA BK is supplied as loose components. The SMAJ7.0CA-13-F is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly. Both use the same SMA package footprint.

Q: Do these parts have the same thermal characteristics?

A: Yes. Both parts operate across the same temperature range of -55°C to 150°C (junction temperature) and have identical power dissipation ratings of 400W peak pulse.

Q: Is the SMAJ7.0CA-13-F suitable for general-purpose overvoltage protection applications?

A: Yes. Like the original part, it is rated for general-purpose applications and provides bidirectional transient voltage suppression with a single channel configuration.