BZX79-B5V1,113 Equivalent & Substitute Parts

Part Overview

The BZX79-B5V1,113 is a through-hole zener diode manufactured by Nexperia USA Inc., rated at 5.1 V nominal zener voltage with 400 mW maximum power dissipation. The device is packaged in DO-204AH (DO-35) axial configuration and is classified as Active product status with ROHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter ranges, enabling component sourcing flexibility while preserving circuit functionality.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	5.1	V
Tolerance	±2%	—
Power - Max	400	mW
Impedance (Max)	60	Ohms
Current - Reverse Leakage @ Vr	2	µA @ 2 V
Voltage - Forward (Vf) (Max) @ If	900	mV @ 10 mA
Operating Temperature	-65 to 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-B5V1,113 are classified into two categories based on electrical and mechanical parameter alignment:

Parametric Equivalents maintain identical electrical specifications across all critical parameters: 5.1 V nominal zener voltage, ±2% tolerance, 400 mW maximum power, 60 Ohms maximum impedance, 2 µA reverse leakage current, and -65°C to 200°C operating temperature range. These parts are direct functional replacements with no performance degradation. Parametric equivalents include BZX79-B5V1,133 and BZX79-B5V1,143.

Similar Parts share the same 5.1 V nominal zener voltage and core electrical characteristics but differ in one or more secondary parameters. These parts operate within acceptable ranges for many applications but require circuit-level verification. Differences include higher power ratings (500 mW versus 400 mW), relaxed tolerance specifications (±5% versus ±2%), or modified operating temperature ranges. Similar parts include BZX79C5V1 and BZX79C5V1-T50A.

Substitution eligibility is determined by: nominal zener voltage match, tolerance specification, maximum power dissipation capability, impedance characteristics, reverse leakage current, forward voltage characteristics, operating temperature range, and through-hole axial package compatibility.

Parameter Comparison

Parameter	BZX79-B5V1,113	BZX79-B5V1,133	BZX79-B5V1,143	BZX79C5V1	BZX79C5V1-T50A
Manufacturer	Nexperia USA Inc.	Nexperia USA Inc.	NXP Semiconductors	Taiwan Semiconductor Corporation	onsemi
Voltage - Zener (Nom)	5.1 V	5.1 V	5.1 V	5.1 V	5.1 V
Tolerance	±2%	±2%	±2%	±5%	±5%
Power - Max	400 mW	400 mW	400 mW	500 mW	500 mW
Impedance (Max)	60 Ohms	60 Ohms	60 Ohms	60 Ohms	60 Ohms
Current - Reverse Leakage @ Vr	2 µA @ 2 V	2 µA @ 2 V	2 µA @ 2 V	2 µA @ 2 V	2 µA @ 2 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA	1.5 V @ 100 mA	1.5 V @ 100 mA
Operating Temperature	-65 to 200°C	-65 to 200°C	-65 to 200°C	-65 to 175°C	-65 to 200°C
Mounting Type	Through Hole	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	DO-204AH, DO-35, Axial
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Not Specified	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Parametric Equivalent Selection (BZX79-B5V1,133 and BZX79-B5V1,143)

BZX79-B5V1,133 and BZX79-B5V1,143 are direct parametric equivalents to BZX79-B5V1,113. Both maintain identical electrical specifications including 5.1 V nominal zener voltage, ±2% tolerance, 400 mW maximum power dissipation, and -65°C to 200°C operating temperature range. All three parts are Active product status with ROHS3 compliance. BZX79-B5V1,143 is available in higher inventory volume (185,977 pcs) compared to BZX79-B5V1,113 (4,756 pcs) and BZX79-B5V1,133 (2,548 pcs), making it suitable for high-volume production requirements. These parts are interchangeable without circuit modification.

Similar Part Selection (BZX79C5V1 and BZX79C5V1-T50A)

BZX79C5V1 (Taiwan Semiconductor Corporation) and BZX79C5V1-T50A (onsemi) are similar parts with relaxed tolerance specifications (±5% versus ±2%) and higher maximum power ratings (500 mW versus 400 mW). BZX79C5V1 operates within -65°C to 175°C temperature range, which is narrower than the main part. BZX79C5V1-T50A maintains the full -65°C to 200°C operating range. Both similar parts are ROHS3 compliant and Active product status. These parts are suitable for applications where the relaxed tolerance and increased power capability do not compromise circuit performance. BZX79C5V1-T50A offers higher inventory availability (73,948 pcs) for supply chain flexibility.

Frequently Asked Questions (FAQ)

Q: Can BZX79-B5V1,133 and BZX79-B5V1,143 be used interchangeably with BZX79-B5V1,113?

A: Yes. BZX79-B5V1,133 and BZX79-B5V1,143 are parametric equivalents with identical electrical specifications. All three parts share 5.1 V nominal zener voltage, ±2% tolerance, 400 mW maximum power, 60 Ohms impedance, and -65°C to 200°C operating temperature. No circuit modification is required for substitution.

Q: What are the key differences between parametric equivalents and similar parts?

A: Parametric equivalents (BZX79-B5V1,133 and BZX79-B5V1,143) maintain all electrical specifications identical to the main part. Similar parts (BZX79C5V1 and BZX79C5V1-T50A) differ in tolerance (±5% versus ±2%), maximum power (500 mW versus 400 mW), or operating temperature range. Similar parts require application-level verification before substitution.

Q: Is BZX79C5V1 suitable as a substitute for BZX79-B5V1,113?

A: BZX79C5V1 shares the 5.1 V nominal zener voltage and core electrical characteristics but operates within -65°C to 175°C temperature range, which is narrower than BZX79-B5V1,113 (-65°C to 200°C). Additionally, BZX79C5V1 has ±5% tolerance versus ±2% and 500 mW power rating versus 400 mW. Substitution is application-dependent and requires verification that the relaxed tolerance and reduced upper temperature limit do not affect circuit performance.

Q: Why does BZX79C5V1-T50A have higher power rating than BZX79-B5V1,113?

A: BZX79C5V1-T50A is rated at 500 mW maximum power dissipation compared to 400 mW for BZX79-B5V1,113. This higher power capability provides additional thermal margin in applications with higher current demands. The increased power rating does not degrade performance in circuits designed for 400 mW operation.

Q: Are all substitute parts ROHS3 compliant?

A: BZX79-B5V1,113, BZX79-B5V1,133, BZX79C5V1, and BZX79C5V1-T50A are all ROHS3 compliant. BZX79-B5V1,143 RoHS status is not specified in the provided data. Compliance verification is required for BZX79-B5V1,143 before use in regulated applications.

Q: What packaging options are available for these zener diodes?

A: All substitute parts are available in DO-204AH, DO-35 axial through-hole package configuration. Packaging differences exist in supplier device package designations (ALF2 for Nexperia parts, DO-35 for Taiwan Semiconductor and onsemi parts) but all are mechanically compatible in standard through-hole PCB applications.

Q: Which substitute part offers the best inventory availability?

A: BZX79-B5V1,143 offers the highest inventory availability at 185,977 pcs. BZX79C5V1-T50A provides 73,948 pcs. For immediate sourcing with parametric equivalence, BZX79-B5V1,143 is the optimal choice for high-volume production.

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