BZX79-B8V2,113 Equivalent & Substitute Parts

Part Overview

The BZX79-B8V2,113 is an 8.2 V Zener diode rated at 400 mW with ±2% tolerance, manufactured by Nexperia USA Inc. in Through Hole ALF2 packaging. This component is classified as Active and is ROHS3 Compliant. Zener diodes of this specification are used in voltage regulation, overvoltage protection, and reference voltage applications. Equivalent and substitute parts are identified based on matching electrical characteristics and mechanical compatibility within the Through Hole diode category.

Key Parameters

Parameter	Value
Voltage - Zener (Nom) (Vz)	8.2 V
Tolerance	±2%
Power - Max	400 mW
Impedance (Max) (Zzt)	15 Ohms
Current - Reverse Leakage @ Vr	700 nA @ 5 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA
Operating Temperature	-65°C ~ 200°C
Mounting Type	Through Hole
Package / Case	DO-204AH, DO-35, Axial
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the BZX79-B8V2,113 are classified into two categories based on electrical parameter alignment:

Parametric Equivalent: Parts that match all critical electrical specifications including nominal Zener voltage (8.2 V), tolerance (±2%), maximum power rating (400 mW), impedance characteristics, and operating temperature range. These parts are direct functional replacements with identical performance parameters.

Similar Parts: Parts that share the same nominal Zener voltage (8.2 V) and Through Hole mounting type but differ in one or more secondary parameters such as power rating, tolerance, impedance, or temperature range. These parts provide functional voltage regulation capability at the same nominal voltage but with different performance boundaries.

The key parameters determining substitution eligibility are:

Voltage - Zener (Nom) (Vz): 8.2 V
Mounting Type: Through Hole
Package Category: Axial Through Hole Diodes

Parameter Comparison

Parameter	BZX79-B8V2,113 (Main)	BZX79-B8V2,143 (Parametric Equivalent)	1N756A (Similar)
Manufacturer	Nexperia USA Inc.	NXP Semiconductors	Microchip Technology
Voltage - Zener (Nom) (Vz)	8.2 V	8.2 V	8.2 V
Tolerance	±2%	±2%	±5%
Power - Max	400 mW	400 mW	500 mW
Impedance (Max) (Zzt)	15 Ohms	15 Ohms	8 Ohms
Current - Reverse Leakage @ Vr	700 nA @ 5 V	700 nA @ 5 V	1 µA @ 6 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	1.1 V @ 200 mA
Operating Temperature	-65°C ~ 200°C	-65°C ~ 200°C	-65°C ~ 175°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	DO-204AH, DO-35, Axial	DO-204AH, DO-35, Axial	DO-204AA, DO-7, Axial
RoHS Status	ROHS3 Compliant	Not specified	RoHS non-compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

BZX79-B8V2,143 (Parametric Equivalent): This part is a direct electrical equivalent to the BZX79-B8V2,113, matching all critical specifications including Zener voltage, tolerance, power rating, impedance, and operating temperature range. Both parts are manufactured by NXP Semiconductors entities and share identical electrical performance characteristics. Selection of this part is appropriate for applications requiring identical performance parameters. RoHS compliance status for this part is not specified in available data.

1N756A (Similar Part): This part shares the same 8.2 V nominal Zener voltage and Through Hole mounting configuration but differs in several parameters. The 1N756A features a higher power rating (500 mW versus 400 mW), wider tolerance (±5% versus ±2%), lower impedance (8 Ohms versus 15 Ohms), and a reduced maximum operating temperature (175°C versus 200°C). This part is RoHS non-compliant. Selection of this part is appropriate only for applications where the higher power rating and lower impedance are beneficial and where RoHS compliance is not required.

Frequently Asked Questions (FAQ)

Q: Can BZX79-B8V2,143 be used as a direct replacement for BZX79-B8V2,113?

A: Yes. The BZX79-B8V2,143 is a parametric equivalent with identical electrical specifications including 8.2 V nominal Zener voltage, ±2% tolerance, 400 mW power rating, 15 Ohms maximum impedance, and -65°C to 200°C operating temperature range. Both parts use Through Hole ALF2 packaging and are functionally interchangeable.

Q: What are the key differences between BZX79-B8V2,113 and 1N756A?

A: The 1N756A differs in four parameters: tolerance (±5% versus ±2%), power rating (500 mW versus 400 mW), impedance (8 Ohms versus 15 Ohms), and maximum operating temperature (175°C versus 200°C). The 1N756A also uses DO-7 packaging instead of ALF2 and is RoHS non-compliant. The nominal Zener voltage of 8.2 V is identical.

Q: Is the 1N756A suitable for applications requiring ±2% tolerance?

A: No. The 1N756A has ±5% tolerance, which does not meet the ±2% tolerance specification of the BZX79-B8V2,113. Applications requiring ±2% tolerance must use the BZX79-B8V2,113 or BZX79-B8V2,143.

Q: Can 1N756A be used in applications operating above 175°C?

A: No. The 1N756A maximum operating temperature is 175°C. The BZX79-B8V2,113 and BZX79-B8V2,143 both support operation up to 200°C. Applications requiring operation above 175°C must use the main part or parametric equivalent.

Q: Are there RoHS compliance considerations for these parts?

A: The BZX79-B8V2,113 is ROHS3 Compliant. The 1N756A is RoHS non-compliant. Applications subject to RoHS requirements must use the BZX79-B8V2,113 or BZX79-B8V2,143. RoHS compliance status for BZX79-B8V2,143 is not specified in available data.

Q: Do all three parts use the same package?

A: No. The BZX79-B8V2,113 and BZX79-B8V2,143 use DO-204AH, DO-35, Axial packaging (ALF2 supplier package). The 1N756A uses DO-204AA, DO-7, Axial packaging. Physical dimensions and PCB footprints differ between these package types.

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