Equivalent & Substitute Parts Reference: 1N4460 Zener Diode

Part Overview

The Microchip Technology 1N4460 is a Zener diode designed for voltage regulation applications, featuring a nominal Zener voltage of 6.2 V, a maximum power dissipation of 1.5 W, ±5% tolerance, and through-hole mounting in a DO-41 (DO-204AL, Axial) package. The product is currently active, with inventory available. Identifying equivalent and substitute parts is essential when balancing requirements such as RoHS compliance, supply continuity, and compatibility with existing circuit designs in the Diodes, Zener category.

Key Parameters

Parameter	Main Part: 1N4460	Substitute: 1N4735ATR
Voltage - Zener (Nom) (Vz)	6.2 V	6.2 V
Tolerance	±5%	±5%
Power - Max	1.5 W	1 W
Impedance (Max) (Zzt)	4 Ohms	2 Ohms
Current - Reverse Leakage @ Vr	10 µA @ 3.72 V	10 µA @ 3 V
Operating Temperature	-65°C ~ 175°C (TJ)	-65°C ~ 200°C
Mounting Type	Through Hole	Through Hole
Package / Case	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial
Supplier Device Package	DO-41	DO-41
Product Status	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant
REACH Status	Unaffected	Unaffected
ECCN	EAR99	EAR99
HTSUS	8541.10.0050	8541.10.0050

Substitute Part Grouping Explanation

Substitute selection for the 1N4460 Zener diode is determined solely by matching key electrical and mechanical parameters: nominal Zener voltage, tolerance, maximum power rating, impedance, reverse leakage current, operating temperature range, package type, mounting type, product status, compliance certifications, and customs classification. Only substitute parts meeting these criteria for the Diodes, Zener category are considered applicable for direct replacement.

Parameter Comparison

Parameter	1N4460 (Microchip Technology)	1N4735ATR (onsemi)
Voltage - Zener (Nom) (Vz)	6.2 V	6.2 V
Tolerance	±5%	±5%
Power - Max	1.5 W	1 W
Impedance (Max) (Zzt)	4 Ohms	2 Ohms
Current - Reverse Leakage @ Vr	10 µA @ 3.72 V	10 µA @ 3 V
Operating Temperature	-65°C ~ 175°C (TJ)	-65°C ~ 200°C
Mounting Type	Through Hole	Through Hole
Package / Case	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial
Supplier Device Package	DO-41	DO-41
Product Status	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant
REACH Status	Unaffected	Unaffected
ECCN	EAR99	EAR99
HTSUS	8541.10.0050	8541.10.0050

Engineering Selection Recommendations

Selection between 1N4460 and 1N4735ATR can be based on product status (both are active), compliance requirements (only 1N4735ATR is ROHS3 compliant), and REACH status (both are unaffected). For applications requiring RoHS compliance, 1N4735ATR is suitable. Both parts share identical customs and export classifications.

Frequently Asked Questions (FAQ)

Q1: Are 1N4460 and 1N4735ATR Zener diodes directly interchangeable based on the provided parameters?
A1: Yes, both share equivalent Zener voltage, tolerance, package type, mounting type, and product status. Power rating differs.

Q2: What package compatibility considerations exist for these substitute Zener diodes?
A2: Both 1N4460 and 1N4735ATR utilize the DO-41, DO-204AL, axial through-hole package.

Q3: How does RoHS compliance affect substitute selection?
A3: 1N4735ATR is ROHS3 compliant; 1N4460 is non-compliant. Applications requiring compliance should select 1N4735ATR.

Q4: Is there a difference in product status or availability for the substitutes?
A4: Both parts are marked as active with inventory in stock.

Q5: Are there differences in maximum power dissipation among the substitutes?
A5: 1N4460 supports up to 1.5 W; 1N4735ATR supports up to 1 W, which should be considered when matching power requirements.

Q6: What is the significance of matching reverse leakage current and impedance parameters?
A6: Reverse leakage current and impedance affect circuit performance and should be matched closely if possible; both parts are similar in these characteristics as listed.

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