MMSZ5260C-TP Zener Diode Equivalent & Substitute Parts

Part Overview

The MMSZ5260C-TP is a 43 V, 500 mW Zener diode manufactured by Micro Commercial Co in a surface mount SOD-123 package. This component is classified as Active and maintains full inventory availability with 779 pieces in stock. The MMSZ5260C-TP serves as a voltage regulation and protection element in electronic circuits requiring precise 43 V reference voltage control.

Equivalent and substitute parts are identified based on matching electrical specifications including nominal Zener voltage, maximum power dissipation, package type, and operating temperature range. Substitute components enable design flexibility, supply chain continuity, and alternative sourcing options while maintaining circuit performance within specified tolerances.

Substiute Parts

MMSZ5260C-TP

Micro Commercial CoIn Stock: 887MMSZ5260C-TP Datasheet

Current PartRFQ

MMSZ43T1G

onsemiIn Stock: 110075MMSZ43T1G Datasheet

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MMSZ4717-E3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 159496MMSZ4717-E3-08 Datasheet

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MMSZ5260BT1G

onsemiIn Stock: 89467MMSZ5260BT1G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MMSZ5260C-TP are qualified based on the following critical parameters:

Electrical Equivalence Criteria:

• Nominal Zener voltage of 43 V
• Maximum power dissipation of 500 mW
• Operating temperature range of -55°C to 150°C
• Surface mount package type SOD-123

Tolerance Consideration: The MMSZ5260C-TP specifies ±2% tolerance on Zener voltage. Substitute parts with ±5% tolerance remain functionally compatible in applications where the tighter tolerance of the original part is not a circuit-critical requirement. The nominal voltage specification of 43 V is maintained across all substitutes.

Impedance and Leakage Parameters: Variations in maximum impedance (Zzt) and reverse leakage current specifications do not disqualify substitution, as these parameters remain within acceptable ranges for the 43 V, 500 mW Zener diode category. Forward voltage characteristics are consistent across all qualified substitutes.

Parameter Comparison

Engineering Selection Recommendations

MMSZ5260BT1G (onsemi) is the primary substitute for the MMSZ5260C-TP. This part maintains identical electrical specifications including 43 V nominal Zener voltage, 500 mW maximum power, 93 Ohms maximum impedance, and 100 nA reverse leakage current at 33 V. The MMSZ5260BT1G is ROHS3 compliant with MSL 1 rating and is available in Cut Tape and Digi-Reel packaging formats. Product status is Active with substantial inventory availability of 89,400 pieces.

MMSZ43T1G (onsemi) qualifies as a secondary substitute. This part maintains the 43 V nominal Zener voltage and 500 mW power rating with identical operating temperature range and SOD-123 package. The tolerance specification is ±5% compared to the ±2% of the main part, and impedance is specified at 150 Ohms maximum. ROHS3 compliance and MSL 1 rating are confirmed. Inventory availability is 110,000 pieces in Tape & Reel format.

MMSZ4717-E3-08 (Vishay General Semiconductor - Diodes Division) qualifies as a tertiary substitute. This part maintains 43 V nominal Zener voltage, 500 mW power rating, and identical operating temperature range in SOD-123 package. The tolerance specification is ±5%. Reverse leakage current is specified at 10 nA at 32.6 V, indicating superior leakage performance. ROHS3 compliance and MSL 1 rating are confirmed. Inventory availability is 159,400 pieces in Tape & Reel format.

All substitute parts are Active status components with REACH Unaffected designation and EAR99 ECCN classification, matching the regulatory profile of the main part.

Frequently Asked Questions (FAQ)

Q: Can MMSZ43T1G replace MMSZ5260C-TP in all applications?

A: MMSZ43T1G is electrically compatible for applications where the ±5% Zener voltage tolerance is acceptable. The main part specifies ±2% tolerance. Both parts maintain 43 V nominal voltage, 500 mW power rating, and identical operating temperature range. Impedance differs at 150 Ohms maximum versus 93 Ohms, which may affect circuit performance in applications with specific impedance requirements.

Q: What is the difference between packaging formats offered by the substitutes?

A: The MMSZ5260C-TP is supplied in Bulk format. MMSZ43T1G and MMSZ4717-E3-08 are supplied in Tape & Reel (TR) format for automated assembly. MMSZ5260BT1G is supplied in Cut Tape (CT) and Digi-Reel format. Packaging format selection depends on manufacturing process requirements and volume needs. All parts are identical in electrical function and SOD-123 package dimensions.

Q: Are all substitute parts RoHS compliant?

A: MMSZ43T1G, MMSZ4717-E3-08, and MMSZ5260BT1G are all ROHS3 compliant. RoHS status is not specified for the main part MMSZ5260C-TP. All substitute parts carry MSL 1 (Unlimited) moisture sensitivity level rating.

Q: Which substitute offers the best reverse leakage performance?

A: MMSZ4717-E3-08 specifies 10 nA reverse leakage current at 32.6 V, which is superior to the main part specification of 100 nA at 33 V and MMSZ43T1G specification of 50 nA at 30.1 V. MMSZ5260BT1G matches the main part at 100 nA at 33 V.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: All substitute parts use identical SOD-123 surface mount package with matching pin configuration and footprint. Physical interchangeability on PCB assemblies is confirmed. Electrical interchangeability depends on circuit tolerance requirements, particularly regarding Zener voltage tolerance and impedance specifications.

Q: What inventory considerations apply to substitute selection?

A: MMSZ4717-E3-08 offers the highest inventory availability at 159,400 pieces. MMSZ43T1G provides 110,000 pieces, and MMSZ5260BT1G provides 89,400 pieces. The main part MMSZ5260C-TP has 779 pieces available. Substitute selection may be influenced by supply chain requirements and lead time considerations.