BZX79-C7V5,113 Equivalent & Substitute Parts

Part Overview

The BZX79-C7V5,113 is a through-hole Zener diode manufactured by Nexperia USA Inc., rated at 7.5 V nominal with 400 mW maximum power dissipation and ±5% tolerance. The device is packaged in DO-204AH (DO-35) axial configuration with ALF2 supplier designation. This part maintains Active product status and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when design requirements permit tolerance relaxation, packaging format variation, or power rating adjustment while maintaining core electrical specifications for voltage regulation, overvoltage protection, and reference applications.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	7.5	V
Tolerance	±5%	—
Power - Max	400	mW
Impedance (Max)	15	Ohms
Current - Reverse Leakage @ Vr	1	µA @ 5 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	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution logic for the BZX79-C7V5,113 is based on the following allowed parameters:

Parametric Equivalents maintain identical electrical specifications:

Zener voltage: 7.5 V (nominal)
Power rating: 400 mW (maximum)
Tolerance: ±5% or tighter (±2%)
Impedance: 15 Ohms (maximum)
Reverse leakage: 1 µA @ 5 V
Forward voltage: 900 mV @ 10 mA
Operating temperature: -65°C to 200°C
Mounting: Through Hole
Package: DO-204AH / DO-35 Axial

Parametric equivalents differ only in packaging format (Cut Tape vs. Bulk) or supplier designation (ALF2 variants with different tape/reel codes: ,113 / ,133 / ,143).

Similar Parts permit relaxation of power rating specification:

Zener voltage: 7.5 V (maintained)
Power rating: 500 mW (increased from 400 mW)
Tolerance: ±5% (maintained)
All other electrical parameters: maintained
Package: DO-35 / DO-204AH Axial (maintained)

Similar parts are suitable when circuit design allows higher power dissipation capability without performance degradation.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power Max	Zzt (Max)	Ir @ Vr	Vf (Max)	Temp Range	Package	Packaging Format	Inventory
BZX79-C7V5,113	Nexperia USA Inc.	7.5 V	±5%	400 mW	15 Ω	1 µA @ 5 V	900 mV @ 10 mA	-65 to 200°C	DO-204AH	Cut Tape	45300 Pcs
BZX79-B7V5,113	Nexperia USA Inc.	7.5 V	±2%	400 mW	15 Ω	1 µA @ 5 V	900 mV @ 10 mA	-65 to 200°C	DO-204AH	Cut Tape	20944 Pcs
BZX79-B7V5,133	Nexperia USA Inc.	7.5 V	±2%	400 mW	15 Ω	1 µA @ 5 V	900 mV @ 10 mA	-65 to 200°C	DO-204AH	Cut Tape	10969 Pcs
BZX79-B7V5,143	Nexperia USA Inc.	7.5 V	±2%	400 mW	15 Ω	1 µA @ 5 V	900 mV @ 10 mA	-65 to 200°C	DO-204AH	Cut Tape	6099 Pcs
BZX79-C7V5,133	Nexperia USA Inc.	7.5 V	±5%	400 mW	15 Ω	1 µA @ 5 V	900 mV @ 10 mA	-65 to 200°C	DO-204AH	Cut Tape	230300 Pcs
BZX79-C7V5,143	NXP USA Inc.	7.5 V	±5%	400 mW	15 Ω	1 µA @ 5 V	900 mV @ 10 mA	-65 to 200°C	DO-204AH	Bulk	211161 Pcs
BZX79C7V5-T50A	Fairchild Semiconductor	7.5 V	±5%	500 mW	15 Ω	1 µA @ 5 V	1.5 V @ 100 mA	-65 to 200°C	DO-35	Bulk	80644 Pcs

Engineering Selection Recommendations

Parametric Equivalent Selection (BZX79-B7V5 Series)

The BZX79-B7V5,113 / BZX79-B7V5,133 / BZX79-B7V5,143 variants provide tighter tolerance specification (±2% vs. ±5%) while maintaining all other electrical parameters. These parts are suitable for applications requiring improved voltage accuracy. All variants are manufactured by Nexperia USA Inc., maintain Active product status, and carry ROHS3 compliance. Selection among ,113 / ,133 / ,143 designations is determined by tape/reel packaging requirements and supply chain availability.

Parametric Equivalent Selection (BZX79-C7V5 Series)

The BZX79-C7V5,133 and BZX79-C7V5,143 maintain identical electrical specifications to the BZX79-C7V5,113 reference part. The ,133 variant is supplied in Cut Tape format with 230300 Pcs inventory availability. The ,143 variant is supplied in Bulk format with 211161 Pcs inventory. Both are ROHS3 compliant and Active status. Selection is based on packaging format requirement and procurement volume.

Similar Part Selection (BZX79C7V5-T50A)

The BZX79C7V5-T50A manufactured by Fairchild Semiconductor provides increased power rating (500 mW vs. 400 mW) with maintained 7.5 V zener voltage and ±5% tolerance. This part is suitable for applications where thermal margin or higher dissipation capability is required. Forward voltage specification differs (1.5 V @ 100 mA vs. 900 mV @ 10 mA), reflecting different measurement conditions. The part is ROHS3 compliant and maintains Active status with 80644 Pcs inventory.

Frequently Asked Questions (FAQ)

Q: Can BZX79-B7V5 series parts directly replace BZX79-C7V5,113?

A: Yes. The BZX79-B7V5 series (,113 / ,133 / ,143 variants) are parametric equivalents with identical electrical performance. The primary difference is tolerance specification: ±2% (B-series) versus ±5% (C-series). All other parameters—zener voltage, power rating, impedance, leakage current, forward voltage, and operating temperature—are identical. Substitution is valid for all applications.

Q: What is the difference between ,113, ,133, and ,143 designations?

A: These designations represent different tape/reel packaging configurations and supplier batches. The numeric suffix indicates packaging format and manufacturing lot tracking. Electrical specifications remain identical within each base part number series (BZX79-B7V5 or BZX79-C7V5). Selection is based on procurement requirements and supply chain availability.

Q: Can BZX79C7V5-T50A be used as a direct replacement?

A: BZX79C7V5-T50A is a similar part with increased power rating (500 mW vs. 400 mW). It maintains 7.5 V zener voltage, ±5% tolerance, and identical impedance. This part is suitable when circuit design permits higher power dissipation. The forward voltage specification differs due to different measurement conditions (1.5 V @ 100 mA vs. 900 mV @ 10 mA). Substitution is valid for applications where increased thermal capability is beneficial or required.

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

A: Cut Tape packaging supplies components on continuous tape in specified quantities per reel, suitable for automated assembly and component handling. Bulk packaging supplies loose components in containers, suitable for manual assembly or custom packaging requirements. Electrical specifications are identical; selection is based on assembly process and handling requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts—BZX79-B7V5 series, BZX79-C7V5 series, and BZX79C7V5-T50A—are ROHS3 compliant. All parts maintain Moisture Sensitivity Level 1 (Unlimited) and are REACH Unaffected.

Q: Which substitute part offers the best inventory availability?

A: BZX79-C7V5,133 offers the highest inventory level at 230300 Pcs. BZX79-C7V5,143 provides 211161 Pcs. Both maintain identical electrical specifications to the reference part BZX79-C7V5,113 (45300 Pcs available).

Q: Can tolerance differences affect circuit performance?

A: Tolerance differences (±2% vs. ±5%) affect the voltage accuracy range. BZX79-B7V5 series (±2%) provides tighter voltage regulation compared to BZX79-C7V5 series (±5%). Selection depends on circuit requirements for voltage accuracy. Both are suitable for standard voltage regulation and overvoltage protection applications.

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