RL202 Equivalent & Substitute Parts

Part Overview

The RL202 is a general-purpose rectifier diode rated for 100 V DC reverse voltage and 2 A average rectified current in a through-hole DO-15 package. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design and procurement requirements. The RL202 operates across a junction temperature range of -65°C to 125°C and exhibits standard recovery characteristics typical of general-purpose rectifier applications.

Substiute Parts

RL202

SMC Diode SolutionsIn Stock: 923RL202 Datasheet

Current PartRFQ

RL202G

SMC Diode SolutionsIn Stock: 741RL202G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RL202 is determined by electrical and mechanical parameter equivalence within the general-purpose rectifier diode category. The critical parameters governing substitution are:

• Voltage - DC Reverse (Vr) (Max): 100 V minimum
• Current - Average Rectified (Io): 2 A minimum
• Mounting Type: Through Hole
• Package / Case: DO-15 compatible
• Speed Classification: Standard Recovery

The RL202G qualifies as a direct substitute based on matching or exceeding all mandatory electrical specifications and maintaining identical package geometry and mounting configuration. The RL202G is manufactured by SMC Diode Solutions and carries active product status, ensuring continued availability and supply chain reliability.

Parameter Comparison

Engineering Selection Recommendations

The RL202G is the direct substitute for the obsolete RL202. Selection of the RL202G is supported by the following factors:

Product Status: The RL202G carries active product status, ensuring availability and supply chain continuity. The RL202 is obsolete and no longer manufactured.

Electrical Equivalence: The RL202G maintains all critical electrical specifications at or above the RL202 baseline. Forward voltage increases marginally from 1 V to 1.1 V at 2 A, which remains within acceptable tolerance for general-purpose rectifier applications.

Thermal Performance: The RL202G extends the operating temperature range to -65°C to 175°C, providing enhanced thermal margin compared to the RL202 specification of -65°C to 125°C.

Regulatory Compliance: The RL202G is ROHS3 compliant, meeting current environmental and regulatory requirements. Both parts share identical ECCN and HTSUS classifications.

Package Compatibility: Both parts utilize identical DO-15 through-hole packaging, ensuring direct mechanical and electrical compatibility in existing circuit board layouts.

Frequently Asked Questions (FAQ)

Q: Can the RL202G be used as a direct replacement for the RL202 in existing designs?

A: Yes. The RL202G is electrically and mechanically equivalent to the RL202. All critical parameters—reverse voltage, forward current, recovery speed, and package geometry—are identical or exceed the RL202 specification. The RL202G can be substituted without circuit modification.

Q: What is the significance of the forward voltage difference between RL202 (1 V) and RL202G (1.1 V)?

A: The forward voltage increase of 0.1 V at 2 A is within normal manufacturing tolerance for general-purpose rectifier diodes. This difference does not affect circuit functionality in standard rectification applications and is acceptable for power supply and signal conditioning circuits.

Q: Why is the RL202 classified as obsolete?

A: The RL202 is no longer manufactured by SMC Diode Solutions. The RL202G represents the current active equivalent and is the recommended part for new designs and ongoing procurement.

Q: Are there any thermal performance advantages to using the RL202G?

A: The RL202G operates across a junction temperature range of -65°C to 175°C, compared to the RL202 range of -65°C to 125°C. This extended upper temperature limit provides additional thermal margin in applications subject to elevated ambient or self-heating conditions.

Q: Is the RL202G compliant with current environmental regulations?

A: Yes. The RL202G is ROHS3 compliant and meets current environmental standards. Both the RL202 and RL202G share identical REACH and export control classifications (EAR99).

Q: What is the moisture sensitivity level for the RL202G?

A: The RL202G carries MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply.

Q: Are there any differences in package marking or identification between the RL202 and RL202G?

A: Both parts use the DO-15 axial package. The RL202G designation appears in the part number, which may be reflected in package marking. Consult the manufacturer datasheet for specific marking details.