CMKZ5232B BK Zener Diode Array Equivalent & Substitute Parts

Part Overview

The CMKZ5232B BK is a triple isolated zener diode array manufactured by Central Semiconductor Corp, designed for voltage regulation and protection applications. This component features three independent 5.6 V zener diodes in a compact SOT-363 surface mount package with 200 mW power dissipation per diode. The part is currently classified as obsolete, making identification of active equivalent components essential for ongoing design support and procurement continuity.

Substiute Parts

CMKZ5232B BK

Central Semiconductor CorpIn Stock: 1138CMKZ5232B BK Datasheet

Current PartRFQ

MMBZ5232BTS-7-F

Diodes IncorporatedIn Stock: 38273MMBZ5232BTS-7-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CMKZ5232B BK is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Zener voltage (Vz) = 5.6 V nominal
• Tolerance = ±5%
• Maximum power dissipation = 200 mW
• Maximum impedance (Zzt) = 11 Ohms
• Reverse leakage current = 5 µA @ 3 V
• Forward voltage = 900 mV @ 10 mA maximum

Mechanical & Package Equivalence Criteria:

• Configuration = 3 Independent diodes
• Package type = SOT-363 (6-TSSOP, SC-88)
• Mounting type = Surface Mount

Compliance Equivalence Criteria:

• RoHS3 Compliance required
• Moisture Sensitivity Level = 1 (Unlimited)
• Operating temperature range = -65°C to 150°C

The substitute part MMBZ5232BTS-7-F meets all specified electrical, mechanical, and compliance parameters and is classified as an active product with current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

The MMBZ5232BTS-7-F manufactured by Diodes Incorporated is a direct functional equivalent to the obsolete CMKZ5232B BK. Selection of this substitute is based on the following engineering factors:

Product Status Consideration: The CMKZ5232B BK is classified as obsolete with no active manufacturing. The MMBZ5232BTS-7-F is an active product with current production and 38,200 units in stock, ensuring long-term procurement availability and supply chain continuity.

Electrical Parameter Equivalence: All critical electrical specifications are identical, including zener voltage, tolerance, power rating, impedance, leakage current, and forward voltage characteristics. These parameters determine circuit performance in voltage regulation and protection applications.

Mechanical & Package Compatibility: Both components utilize the SOT-363 package (6-TSSOP, SC-88) with surface mount configuration. Pin-to-pin compatibility is maintained, allowing direct PCB layout substitution without redesign.

Compliance & Environmental Certification: Both parts meet ROHS3 compliance requirements and carry identical moisture sensitivity ratings (MSL 1, Unlimited). Operating temperature ranges are identical (-65°C to 150°C), ensuring equivalent thermal performance across all specified operating conditions.

Packaging Availability: The substitute is available in Tape & Reel (TR) format, supporting automated assembly processes and high-volume production requirements.

Frequently Asked Questions (FAQ)

Q: Can MMBZ5232BTS-7-F be used as a direct replacement for CMKZ5232B BK in existing designs?

A: Yes. The MMBZ5232BTS-7-F is electrically and mechanically equivalent across all specified parameters. No circuit modifications or PCB redesign are required. The SOT-363 package pinout is identical, and all electrical characteristics match the original specification.

Q: What is the primary reason for substitution?

A: The CMKZ5232B BK is obsolete with no active manufacturing. The MMBZ5232BTS-7-F is an active product from Diodes Incorporated with current production and adequate inventory, ensuring procurement continuity and long-term supply availability.

Q: Are there any differences in performance between these two parts?

A: No. All electrical parameters are identical: 5.6 V zener voltage, ±5% tolerance, 200 mW power rating, 11 Ohms maximum impedance, 5 µA reverse leakage, and 900 mV forward voltage. Operating temperature range and configuration are also identical.

Q: Does the packaging format difference affect compatibility?

A: No. The MMBZ5232BTS-7-F is supplied in Tape & Reel (TR) format, which is standard for automated assembly. The original part packaging format was not specified. Both formats contain the same SOT-363 component with identical electrical and mechanical properties.

Q: Are both parts RoHS compliant?

A: Yes. Both the CMKZ5232B BK and MMBZ5232BTS-7-F are ROHS3 compliant with identical moisture sensitivity ratings (MSL 1, Unlimited), meeting all environmental and regulatory requirements.

Q: What is the configuration of these zener diode arrays?

A: Both components feature 3 independent zener diodes in a single SOT-363 package. Each diode operates independently with identical electrical specifications, allowing flexible circuit design for multiple voltage regulation or protection channels.

Q: Can these parts be used in high-temperature applications?

A: Yes. Both components are rated for operating temperatures from -65°C to 150°C (TJ), supporting applications across industrial, automotive, and extended temperature range environments.