BZX79-C62,113 Equivalent & Substitute Parts

Part Overview

The BZX79-C62,113 is an active-status zener diode manufactured by Nexperia USA Inc., rated for 62 V nominal zener voltage with 400 mW maximum power dissipation. This through-hole component operates across a temperature range of -65°C to 200°C and is packaged in the DO-204AH/DO-35 axial configuration. The device is ROHS3 compliant and REACH unaffected, making it suitable for modern electronic applications requiring voltage regulation and transient protection. Substitute parts are identified when electrical parameters, mechanical compatibility, and regulatory compliance align with the original specification, enabling component sourcing flexibility without circuit redesign.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	62	V
Power - Max	400	mW
Tolerance	±5%	—
Impedance (Max)	215	Ohms
Current - Reverse Leakage @ Vr	50	nA @ 43.4 V
Voltage - Forward (Max) @ If	900	mV @ 10 mA
Operating Temperature Range	-65 to 200	°C
Mounting Type	Through Hole	—
Package / Case	DO-204AH, DO-35, Axial	—

Substitute Part Grouping Explanation

Substitution of the BZX79-C62,113 is determined by strict equivalence across the following critical parameters:

Zener Voltage (Vz): 62 V nominal
Power Dissipation: 400 mW maximum
Impedance (Zzt): 215 Ohms maximum
Reverse Leakage Current: 50 nA @ 43.4 V
Forward Voltage: 900 mV @ 10 mA maximum
Operating Temperature Range: -65°C to 200°C
Mounting Configuration: Through Hole, DO-204AH/DO-35 Axial package
Regulatory Compliance: ROHS3 and REACH status

The BZX79-B62,143 qualifies as a parametric equivalent substitute. While the tolerance specification differs (±2% versus ±5%), all electrical performance parameters, thermal characteristics, and mechanical compatibility remain identical. Both devices are manufactured by NXP (Nexperia USA Inc.), share the same package designation, and maintain full regulatory compliance.

Parameter Comparison

Parameter	BZX79-C62,113 (Main)	BZX79-B62,143 (Substitute)	Match Status
Manufacturer	Nexperia USA Inc.	NXP USA Inc.	Same Entity
Category	Diodes, Zener	Diodes, Zener	Identical
Voltage - Zener (Nom)	62 V	62 V	Identical
Tolerance	±5%	±2%	Tighter on Substitute
Power - Max	400 mW	400 mW	Identical
Impedance (Max)	215 Ohms	215 Ohms	Identical
Current - Reverse Leakage @ Vr	50 nA @ 43.4 V	50 nA @ 43.4 V	Identical
Voltage - Forward (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	Identical
Operating Temperature	-65°C ~ 200°C	-65°C ~ 200°C	Identical
Mounting Type	Through Hole	Through Hole	Identical
Package / Case	DO-204AH, DO-35, Axial	DO-204AH, DO-35, Axial	Identical
Product Status	Active	Active	Identical
ECCN	EAR99	EAR99	Identical
HTSUS	8541.10.0050	8541.10.0050	Identical

Engineering Selection Recommendations

The BZX79-B62,143 is a direct parametric equivalent to the BZX79-C62,113 for all circuit applications requiring a 62 V, 400 mW zener diode in through-hole axial configuration. Both devices maintain active product status and full compliance with ROHS3 and REACH regulations, ensuring long-term availability and regulatory acceptance in production environments.

The primary distinction between the two parts is the tolerance specification: the substitute part (BZX79-B62,143) offers ±2% tolerance compared to the main part's ±5% tolerance. This tighter tolerance on the substitute part represents an improvement in voltage accuracy and does not introduce any compatibility constraints. The substitute part is electrically and mechanically interchangeable with the original specification.

Selection between these two parts should be based on packaging availability (Cut Tape versus Bulk) and inventory requirements rather than electrical performance, as both devices deliver identical functional characteristics across all specified parameters.

Frequently Asked Questions (FAQ)

Q: Can the BZX79-B62,143 be used as a direct replacement for the BZX79-C62,113 in existing designs?

A: Yes. The BZX79-B62,143 is a direct parametric equivalent. All electrical characteristics, thermal performance, and mechanical dimensions are identical. The substitute part features a tighter tolerance specification (±2% versus ±5%), which represents an improvement in voltage accuracy without introducing any compatibility issues.

Q: What is the difference between the two part numbers?

A: The primary differences are packaging format and tolerance specification. The BZX79-C62,113 is supplied in Cut Tape (CT) packaging with ±5% tolerance, while the BZX79-B62,143 is supplied in Bulk packaging with ±2% tolerance. Both parts are manufactured by NXP/Nexperia and share identical electrical and mechanical specifications.

Q: Are both parts available in the same package configuration?

A: Yes. Both the BZX79-C62,113 and BZX79-B62,143 are packaged in the DO-204AH/DO-35 axial through-hole configuration. They are mechanically identical and can be installed using the same PCB footprint and assembly processes.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8541.10.0050. They are suitable for applications requiring compliance with modern environmental and trade regulations.

Q: What is the operating temperature range for both parts?

A: Both the BZX79-C62,113 and BZX79-B62,143 operate across the identical temperature range of -65°C to 200°C, ensuring consistent performance across industrial and extended-temperature applications.

Q: How do the electrical specifications compare between the two parts?

A: All electrical specifications are identical: 62 V nominal zener voltage, 400 mW maximum power dissipation, 215 Ohms maximum impedance, 50 nA reverse leakage current at 43.4 V, and 900 mV maximum forward voltage at 10 mA. The only difference is the tolerance specification, where the substitute part offers tighter accuracy.

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