BZX79-C24,113 Equivalent & Substitute Parts

Part Overview

The BZX79-C24,113 is a Zener diode manufactured by Nexperia USA Inc., rated for 24 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 DO-204AH (DO-35) axial configuration. The part is Active in product status and RoHS3 compliant. Equivalent and substitute parts are identified when electrical parameters and mechanical specifications align within acceptable tolerances, enabling direct replacement in circuit applications without design modification.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	24	V
Power - Max	400	mW
Tolerance	±5%	—
Impedance (Max)	70	Ohms
Current - Reverse Leakage @ Vr	50	nA @ 16.8 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-C24,113 is determined by equivalence in the following critical parameters:

Zener Voltage (Vz): 24 V nominal
Power Rating: 400 mW maximum
Impedance (Zzt): 70 Ohms maximum
Reverse Leakage Current: 50 nA @ 16.8 V
Forward Voltage: 900 mV @ 10 mA maximum
Operating Temperature Range: -65°C to 200°C
Mounting Type: Through Hole
Package Configuration: DO-204AH, DO-35, Axial

Substitute parts must maintain identical electrical performance across these parameters. Tolerance variations (±2% versus ±5%) and packaging format differences (Cut Tape versus Bulk) do not affect functional equivalence but may influence procurement and handling considerations. All identified substitutes are Active products with current manufacturing status.

Parameter Comparison

Parameter	BZX79-C24,113	BZX79-B24,113	BZX79-C24,133	BZX79-C24,143
Manufacturer	Nexperia USA Inc.	NXP USA Inc.	Nexperia USA Inc.	NXP USA Inc.
Voltage - Zener (Nom)	24 V	24 V	24 V	24 V
Tolerance	±5%	±2%	±5%	±5%
Power - Max	400 mW	400 mW	400 mW	400 mW
Impedance (Max)	70 Ohms	70 Ohms	70 Ohms	70 Ohms
Current - Reverse Leakage @ Vr	50 nA @ 16.8 V	50 nA @ 16.8 V	50 nA @ 16.8 V	50 nA @ 16.8 V
Voltage - Forward (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA
Operating Temperature	-65°C ~ 200°C	-65°C ~ 200°C	-65°C ~ 200°C	-65°C ~ 200°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-204AH, DO-35, Axial	DO-204AH, DO-35, Axial	DO-204AH, DO-35, Axial	DO-204AH, DO-35, Axial
Packaging Format	Cut Tape (CT)	Bulk	Cut Tape (CT)	Bulk
Product Status	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	Not specified	ROHS3 Compliant	Not specified
ECCN	EAR99	EAR99	EAR99	EAR99
HTSUS	8541.10.0050	8541.10.0050	8541.10.0050	8541.10.0050

Engineering Selection Recommendations

All identified substitute parts—BZX79-B24,113, BZX79-C24,133, and BZX79-C24,143—are functionally equivalent to the BZX79-C24,113 based on electrical parameter alignment. Selection among these substitutes is determined by application-specific requirements:

BZX79-B24,113 offers tighter tolerance specification (±2% versus ±5%), providing enhanced voltage regulation accuracy in applications requiring precise Zener voltage control. This part is supplied in Bulk packaging format.

BZX79-C24,133 maintains identical electrical specifications and tolerance to the primary part (±5%) and is supplied in Cut Tape packaging, matching the original part's format.

BZX79-C24,143 provides equivalent electrical performance with ±5% tolerance and is supplied in Bulk packaging format, offering higher inventory availability.

All substitute parts maintain Active product status and compliance with EAR99 export classification and HTSUS tariff code 8541.10.0050. Parts specified as ROHS3 compliant (BZX79-C24,113 and BZX79-C24,133) satisfy environmental regulatory requirements where applicable.

Frequently Asked Questions (FAQ)

Q: Can BZX79-B24,113 be used as a direct replacement for BZX79-C24,113?

A: Yes. Both parts share identical Zener voltage (24 V), power rating (400 mW), impedance (70 Ohms), reverse leakage current, forward voltage, operating temperature range, and package configuration. The BZX79-B24,113 features tighter tolerance (±2% versus ±5%), which provides improved voltage regulation performance without affecting mechanical or thermal compatibility.

Q: What is the difference between Cut Tape and Bulk packaging?

A: Cut Tape (CT) packaging supplies components on continuous tape cut into specified lengths, suitable for automated assembly and smaller quantity requirements. Bulk packaging supplies loose components in larger quantities, typically for high-volume manufacturing or manual assembly operations. Electrical and mechanical specifications remain identical between packaging formats.

Q: Are all substitute parts RoHS3 compliant?

A: BZX79-C24,113 and BZX79-C24,133 are explicitly specified as ROHS3 compliant. RoHS compliance status is not specified for BZX79-B24,113 and BZX79-C24,143 in the provided data. Compliance verification with the component supplier is required for applications with mandatory RoHS requirements.

Q: Can these parts be used interchangeably in existing circuit designs?

A: Yes. All substitute parts maintain identical electrical parameters, operating temperature range, and through-hole axial package configuration. No circuit design modification is required for substitution. Physical board layout and lead spacing remain compatible across all identified parts.

Q: What determines whether a part qualifies as a substitute?

A: Substitution is determined by equivalence in Zener voltage, power rating, impedance, reverse leakage current, forward voltage, operating temperature range, mounting type, and package configuration. Tolerance variations and packaging format differences do not prevent substitution but may influence procurement strategy and assembly processes.

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