CMPZ5233B TR PBFREE Equivalent & Substitute Parts

Part Overview

The CMPZ5233B TR PBFREE is a 6 V Zener diode manufactured by Central Semiconductor Corp, rated for 350 mW maximum power dissipation in a surface mount SOT-23 package. This component is classified as Active and is ROHS3 compliant. Equivalent and substitute parts are identified based on matching electrical specifications and package compatibility within the Zener diode category. Alternative sources and configurations are documented to support component procurement flexibility and supply chain continuity.

Substiute Parts

CMPZ5233B TR PBFREE

Central Semiconductor CorpIn Stock: 2675CMPZ5233B TR PBFREE Datasheet

Current PartRFQ

MMBZ5233BLT1G

onsemiIn Stock: 20200MMBZ5233BLT1G Datasheet

MFR RecommendedRFQ

MMBZ5233BTS-7-F

Diodes IncorporatedIn Stock: 870MMBZ5233BTS-7-F Datasheet

MFR RecommendedRFQ

SZMMBZ5233BLT1G

onsemiIn Stock: 7476SZMMBZ5233BLT1G Datasheet

MFR RecommendedRFQ

MMBZ5233B-7-F

Diodes IncorporatedIn Stock: 2925MMBZ5233B-7-F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CMPZ5233B TR PBFREE is determined by the following critical parameters: nominal Zener voltage (6 V), voltage tolerance (±5%), maximum power rating, impedance specification (7 Ohms maximum), reverse leakage current (5 µA @ 3.5 V), forward voltage drop (900 mV @ 10 mA), operating temperature range (-65°C to 150°C), and surface mount package compatibility (SOT-23 or equivalent footprint).

Substitute parts are classified into two categories:

MFR Recommended Substitutes: Parts that match all critical electrical parameters and package footprint, sourced from alternative manufacturers with equivalent performance characteristics.

Parametric Equivalent: Parts that maintain the same nominal Zener voltage, tolerance, and core electrical specifications but may differ in power rating or package configuration while remaining functionally compatible within the specified operating envelope.

Parameter Comparison

Engineering Selection Recommendations

Direct Footprint Compatible Substitutes (SOT-23-3 Package):

MMBZ5233BLT1G (onsemi) and MMBZ5233B-7-F (Diodes Incorporated) are direct substitutes for the CMPZ5233B TR PBFREE. Both maintain identical nominal Zener voltage (6 V), tolerance (±5%), impedance (7 Ohms), reverse leakage current (5 µA @ 3.5 V), forward voltage (900 mV @ 10 mA), and operating temperature range (-65°C to 150°C). MMBZ5233B-7-F matches the 350 mW power rating exactly. MMBZ5233BLT1G operates at 225 mW, which is suitable for applications where the full 350 mW capability is not required. Both are ROHS3 compliant with MSL 1 (Unlimited).

Automotive Grade Alternative:

SZMMBZ5233BLT1G (onsemi) is an automotive-qualified variant (AEC-Q101) with identical electrical specifications to MMBZ5233BLT1G, operating at 225 mW in SOT-23-3 package. This part is specified for applications requiring automotive-grade reliability and traceability.

Alternative Package Configuration:

MMBZ5233BTS-7-F (Diodes Incorporated) is a 3-independent Zener diode array in SOT-363 package (6-TSSOP). Each diode element is rated 6 V, 200 mW, with matching electrical parameters. This configuration is applicable only when multiple independent Zener functions are required in a single package footprint.

All substitute parts are Active status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can MMBZ5233BLT1G replace CMPZ5233B TR PBFREE in all applications?

A: MMBZ5233BLT1G is electrically compatible with CMPZ5233B TR PBFREE for all specified parameters except power rating. MMBZ5233BLT1G is rated 225 mW versus 350 mW for the original part. Substitution is valid when circuit power dissipation does not exceed 225 mW. Both parts share identical SOT-23-3 footprint, Zener voltage (6 V), tolerance (±5%), impedance (7 Ohms), and operating temperature range (-65°C to 150°C).

Q: What is the difference between MMBZ5233BLT1G and SZMMBZ5233BLT1G?

A: Both parts are manufactured by onsemi with identical electrical specifications: 6 V Zener voltage, ±5% tolerance, 225 mW power rating, 7 Ohms impedance, and SOT-23-3 package. SZMMBZ5233BLT1G carries automotive-grade qualification (AEC-Q101) and is specified for automotive applications requiring enhanced reliability documentation and traceability.

Q: Is MMBZ5233BTS-7-F a direct substitute?

A: MMBZ5233BTS-7-F is not a direct substitute for single-diode applications. This part is a 3-independent Zener diode array in SOT-363 package. Each diode element matches the 6 V nominal voltage and ±5% tolerance, but the package footprint (6-TSSOP, SC-88, SOT-363) differs from the original SOT-23-3. Use this part only when circuit design requires multiple independent Zener functions.

Q: Does MMBZ5233B-7-F provide exact parameter matching?

A: Yes. MMBZ5233B-7-F (Diodes Incorporated) matches all electrical specifications of CMPZ5233B TR PBFREE: 6 V Zener voltage, ±5% tolerance, 350 mW power rating, 7 Ohms impedance, 5 µA reverse leakage @ 3.5 V, 900 mV forward voltage @ 10 mA, and -65°C to 150°C operating range. Package is SOT-23-3 (TO-236-3, SC-59). This part is a parametric equivalent.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (MMBZ5233BLT1G, MMBZ5233BTS-7-F, SZMMBZ5233BLT1G, MMBZ5233B-7-F) are ROHS3 compliant with MSL 1 (Unlimited moisture sensitivity level).

Q: What determines whether a part can substitute for CMPZ5233B TR PBFREE?

A: Substitution is determined by matching: nominal Zener voltage (6 V), voltage tolerance (±5%), impedance (7 Ohms maximum), reverse leakage current (5 µA @ 3.5 V), forward voltage (900 mV @ 10 mA), operating temperature range (-65°C to 150°C), and surface mount package compatibility. Power rating may be equal or higher than the application requirement. Package footprint must be compatible with PCB layout (SOT-23-3 for direct substitution).