1N482B Equivalent & Substitute Parts Reference

Part Overview

The 1N482B (Microchip Technology) is a through-hole general-purpose rectifier diode, categorized under Diodes, Rectifiers. It supports DC reverse voltage up to 30 V and an average rectified current of 200mA, packaged in DO-35 (DO-204AH). The product is currently active, with RoHS non-compliant status and REACH unaffected. Evaluating substitute models is necessary for inventory management, compliance strategies, and ensuring continued supply for applications requiring the specific electrical and mechanical parameters of 1N482B.

Key Parameters

Manufacturer Part Number	Manufacturer	Category	Packaging	Description	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Current - Reverse Leakage @ Vr	Mounting Type	Package / Case	Operating Temperature - Junction	Product Status	RoHS Status	REACH Status	ECCN	HTSUS
1N482B	Microchip Technology	Diodes, Rectifiers	Bulk	Diode 30 V 200mA Through Hole DO-35	30 V	200mA	1 V @ 100 mA	25 nA @ 30 V	Through Hole	DO-204AH, DO-35, Axial	-65°C ~ 200°C	Active	RoHS non-compliant	REACH Unaffected	EAR99	8541.10.0070

Substitute Part Grouping Explanation

Substitution for the 1N482B is based strictly on matching or exceeding the following parameters: voltage rating (DC Reverse), average rectified current, forward voltage at given test current, reverse leakage current, mounting type, and mechanical package. Only parts within the same category are considered: Diodes, Rectifiers, in DO-35 (DO-204AH) through-hole configuration. Compliance status (RoHS and REACH) and inventory availability are also considered for direct interchangeability.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Category	Packaging	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Current - Reverse Leakage @ Vr	Mounting Type	Package / Case	Operating Temperature - Junction	Product Status	REACH Status	ECCN	HTSUS
1N482B	Microchip Technology	Diodes, Rectifiers	Bulk	30 V	200mA	1 V @ 100 mA	25 nA @ 30 V	Through Hole	DO-204AH, DO-35, Axial	-65°C ~ 200°C	Active	REACH Unaffected	EAR99	8541.10.0070
1N456A	Microchip Technology	Diodes, Rectifiers	Bulk	-	500mA	-	-	Through Hole	DO-204AH, DO-35, Axial	175°C	Active	REACH Unaffected	EAR99	8541.10.0070
1N456ATR	Fairchild Semiconductor	Diodes, Rectifiers	Bulk	30 V	500mA	1 V @ 100 mA	25 nA @ 25 V	Through Hole	DO-204AH, DO-35, Axial	175°C (Max)	Active	REACH Unaffected	EAR99	8541.10.0070

Engineering Selection Recommendations

All listed substitute parts are active status. The 1N456A and 1N456ATR meet the provided REACH compliance requirements and use the same ECCN and HTSUS codes. Substitution based on compliance and regulatory certifications is valid. RoHS status is only provided for 1N482B; substitute parts should be individually verified for any specific application requirements if RoHS compliance is critical.

Frequently Asked Questions (FAQ)

Q: What electrical parameters must match for substitution?
A: DC reverse voltage, average rectified current rating, forward voltage at specified test current, and reverse leakage current must match or exceed the main part values.

Q: Can package variations affect compatibility?
A: Substitute parts use DO-204AH, DO-35, Axial through-hole packages, maintaining mechanical compatibility.

Q: Is compliance (RoHS and REACH) relevant for selection?
A: Substitutes listed have REACH unaffected status. RoHS status is only provided for 1N482B and must be compared to the application’s requirements.

Q: Can substitute parts with higher current ratings be used?
A: Substitute parts with higher current ratings are provided and are compatible, as long as other critical parameters match.

Q: Is operating temperature critical for interchangeability?
A: Operating temperature ratings must meet or exceed application requirements; all substitutes meet high temperature ratings per the provided data.

Q: Are all substitutes suitable for inventory replacement?
A: Only substitute parts with confirmed active status and inventory availability as provided can be selected for direct replacement.

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