P4SMA7.0A BK Equivalent & Substitute Parts

Part Overview

The P4SMA7.0A 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 P4SMA7.0A BK is classified as obsolete. Identifying equivalent substitute parts is necessary to ensure continued availability for new designs, production continuity, and long-term system support where this component is specified.

Substiute Parts

P4SMA7.0A BK

Central Semiconductor CorpIn Stock: 1164P4SMA7.0A BK Datasheet

Current PartRFQ

SMAJ7.0A-13-F

Diodes IncorporatedIn Stock: 15430SMAJ7.0A-13-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P4SMA7.0A BK is determined by matching the following critical electrical and mechanical parameters:

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

The SMAJ7.0A-13-F from Diodes Incorporated meets all specified electrical and mechanical parameters, making it a direct functional equivalent for the obsolete P4SMA7.0A BK.

Parameter Comparison

Engineering Selection Recommendations

The SMAJ7.0A-13-F is the qualified substitute for the P4SMA7.0A BK based on the following factors:

• All electrical parameters match exactly: 7V reverse standoff, 12V clamping voltage, 33.3A peak pulse current, and 400W peak pulse power.
• Package and mounting specifications are identical: DO-214AC SMA surface mount.
• Operating temperature range is identical: -55°C ~ 150°C (TJ).
• The substitute part is in active production status with high inventory availability (15,400 pcs), ensuring supply continuity.
• The substitute part is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements.
• Moisture sensitivity level is equivalent (MSL 1 - Unlimited).

Frequently Asked Questions (FAQ)

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

A: Yes. The SMAJ7.0A-13-F meets all electrical and mechanical specifications of the P4SMA7.0A BK, including voltage ratings, current handling, package type, and operating temperature range. No circuit modifications are required.

Q: What is the primary reason for substitution?

A: The P4SMA7.0A BK is obsolete. The SMAJ7.0A-13-F provides identical electrical performance and is in active production, ensuring long-term availability.

Q: Are there packaging differences between these parts?

A: Both parts use the DO-214AC SMA surface mount package. The SMAJ7.0A-13-F is supplied in Tape & Reel (TR) format, which is standard for production environments.

Q: Do compliance certifications differ?

A: The SMAJ7.0A-13-F includes RoHS3 compliance and REACH unaffected status. Both parts carry the same ECCN (EAR99) and HTSUS (8541.10.0080) classifications.

Q: Are there any electrical performance differences?

A: No. Both parts are Zener-type TVS diodes with identical voltage ratings, clamping characteristics, and current handling capabilities.