BZX79-C56,143 Equivalent & Substitute Parts

Part Overview

The BZX79-C56,143 is a Zener diode manufactured by Nexperia USA Inc., rated for 56 V nominal voltage with 400 mW maximum power dissipation. This component is designed for voltage regulation and protection applications in electronic circuits. The part is currently Active in product status with 993 pieces available in new original inventory. Substitute parts are identified to address inventory availability, supply chain continuity, or specific procurement requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

BZX79-C56,143

Nexperia USA Inc.In Stock: 1071BZX79-C56,143 Datasheet

Current PartRFQ

BZX79-C56,133

Nexperia USA Inc.In Stock: 30243BZX79-C56,133 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BZX79-C56,143 are identified based on strict electrical and mechanical parameter equivalence. The substitution criteria are:

Critical Electrical Parameters:

• Zener voltage (Nom): 56 V
• Tolerance: ±5%
• Maximum power dissipation: 400 mW
• Impedance (Max): 200 Ohms
• Reverse leakage current: 50 nA @ 39.2 V
• Forward voltage: 900 mV @ 10 mA
• Operating temperature range: -65°C ~ 200°C

Mechanical & Compliance Parameters:

• Mounting type: Through Hole
• Package / Case: DO-204AH, DO-35, Axial
• Supplier device package: ALF2
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Parts meeting all these parameters are classified as direct parametric equivalents and may be substituted without circuit redesign or performance degradation.

Parameter Comparison

Engineering Selection Recommendations

The BZX79-C56,133 is a direct parametric equivalent to the BZX79-C56,143. Both components are manufactured by Nexperia USA Inc. and share identical electrical specifications, mechanical packaging, and compliance certifications. Selection between these parts may be based on inventory availability and procurement lead times. The BZX79-C56,133 maintains 30,200 pieces in new original inventory compared to 993 pieces for the BZX79-C56,143, providing enhanced supply chain flexibility. Both parts are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Frequently Asked Questions (FAQ)

Q: Can BZX79-C56,133 be used as a direct replacement for BZX79-C56,143?

A: Yes. Both components are parametric equivalents with identical electrical characteristics, including 56 V nominal zener voltage, 400 mW maximum power, ±5% tolerance, and identical operating temperature range. Mechanical packaging and compliance certifications are also identical.

Q: Are there any differences in package or mounting between these parts?

A: No. Both parts use the same DO-204AH, DO-35 axial package with ALF2 supplier device package designation. Through-hole mounting is identical for both components.

Q: What is the significance of the different part number suffixes (,143 vs ,133)?

A: The suffix designates different manufacturing batches or tape reels from Nexperia USA Inc. The electrical and mechanical specifications remain identical across these designations.

Q: Are both parts compliant with current environmental and regulatory standards?

A: Yes. Both BZX79-C56,143 and BZX79-C56,133 are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic component use in regulated markets.

Q: What is the operating temperature range for these zener diodes?

A: Both components operate across -65°C to 200°C, providing performance across industrial and extended temperature applications.

Q: Is there a difference in reverse leakage current between the two parts?

A: No. Both components specify 50 nA reverse leakage current at 39.2 V, ensuring identical leakage performance in circuit applications.