1N6019B Equivalent & Substitute Parts Reference Page

Part Overview

The 1N6019B is a Zener diode from Microchip Technology, primarily used for voltage regulation applications where a nominal Zener voltage of 62 V is required. The device is rated at 500 mW power dissipation with a ±5% voltage tolerance, packaged in a DO-35 axial through-hole form factor. This part is listed as active; however, it is RoHS non-compliant. It is necessary to identify alternative models to address RoHS and regulatory requirements or sourcing constraints.

Key Parameters

Manufacturer Part Number	Manufacturer	Category	Description	Voltage - Zener (Nom) (Vz)	Tolerance	Power - Max	Impedance (Max) (Zzt)	Current - Reverse Leakage @ Vr	Voltage - Forward (Vf) (Max) @ If	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	RoHS Status	Product Status
1N6019B	Microchip Technology	Diodes, Zener	Zener Diode 62 V 500 mW ±5% Through Hole DO-35	62 V	±5%	500 mW	225 Ohms	100 nA @ 47 V	1.1 V @ 200 mA	-65°C ~ 175°C	Through Hole	DO-204AH, DO-35, Axial	DO-35	RoHS non-compliant	Active

Substitute Part Grouping Explanation

Substitute parts for the 1N6019B Zener Diode are determined through equivalence in voltage rating (Zener voltage 62 V), tolerance (±5%), power dissipation (500 mW), reverse leakage current (100 nA @ 47 V), forward voltage (Vf) performance, package compatibility (DO-35 axial through-hole), and operating temperature range (-65°C ~ 175°C). Additional comparison includes regulatory compliance (RoHS status) and product status (active).

Parameter Comparison

Parameter	1N6019B (Microchip Technology)	1N5265BDO35 (Microsemi Corporation)
Voltage - Zener (Nom) (Vz)	62 V	62 V
Tolerance	±5%	±5%
Power - Max	500 mW	500 mW
Impedance (Max) (Zzt)	225 Ohms	185 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 47 V	100 nA @ 47 V
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 200 mA	1.5 V @ 200 mA
Operating Temperature	-65°C ~ 175°C	-65°C ~ 175°C
Mounting Type	Through Hole	Through Hole
Package / Case	DO-204AH, DO-35, Axial	DO-204AH, DO-35, Axial
Supplier Device Package	DO-35	DO-35
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Product Status	Active	Active

Engineering Selection Recommendations

Selection between the 1N6019B and 1N5265BDO35 can be based on regulatory requirements. The 1N6019B is RoHS non-compliant, while the 1N5265BDO35 offers ROHS3 compliance and maintains active product status and equivalent electrical specifications within the provided parameters. This supports direct substitution when RoHS compliance is required.

Frequently Asked Questions (FAQ)

Q1: What electrical parameters determine if a Zener diode can substitute for 1N6019B?
A1: The substitute must match nominal Zener voltage (62 V), tolerance (±5%), power dissipation (500 mW), reverse leakage current (100 nA @ 47 V), and operate within the same temperature range.

Q2: Is package compatibility required for substitution?
A2: Yes. Only substitutes with DO-204AH, DO-35, axial through-hole packages are acceptable.

Q3: When should 1N5265BDO35 be selected over 1N6019B?
A3: Selection of 1N5265BDO35 is necessary when ROHS3 compliance is required according to environmental or quality mandates.

Q4: Are there differences in forward voltage or impedance that affect substitution?
A4: Both parts have forward voltage and impedance values specified; both are within the substitution parameters given.

Q5: Must supplier device package and mounting type match for substitutes?
A5: Yes. Only DO-35 axial through-hole mounting types are included in this equivalence group.

Q6: Do substitute Zener diodes require the same operating temperature range?
A6: Yes. All approved substitutes must operate in the -65°C ~ 175°C range.

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