FR152 General Purpose Rectifier Diode Equivalent & Substitute Parts

Part Overview

The FR152 is a general purpose rectifier diode manufactured by SMC Diode Solutions, rated for 100V DC reverse voltage and 1.5A average rectified current in a DO-15 through-hole package. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing production and maintenance applications. Substitute parts must maintain electrical performance specifications and package compatibility to ensure direct circuit board replacement without design modification.

Substiute Parts

FR152

SMC Diode SolutionsIn Stock: 779FR152 Datasheet

Current PartRFQ

FR152G

Taiwan Semiconductor CorporationIn Stock: 1175FR152G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FR152 is determined by equivalence in the following critical parameters:

• Voltage Rating: Reverse voltage must equal or exceed 100V DC
• Current Rating: Average rectified current must equal or exceed 1.5A
• Forward Voltage Drop: Maximum forward voltage at rated current must not exceed 1.3V @ 1.5A
• Recovery Characteristics: Fast recovery classification with reverse recovery time ≤ 500ns for currents > 200mA
• Package Compatibility: Through-hole axial configuration in DO-15 or DO-204AC package
• Temperature Range: Operating junction temperature range must accommodate application requirements

The FR152G from Taiwan Semiconductor Corporation satisfies all substitution criteria as an active product with identical electrical specifications and compatible package designation.

Parameter Comparison

*Operating temperature range of FR152G (-55°C to 150°C) is narrower at the lower bound but covers standard industrial and commercial operating conditions.

Engineering Selection Recommendations

The FR152G from Taiwan Semiconductor Corporation is the direct functional equivalent for FR152 replacement applications. Selection is based on the following engineering criteria:

Electrical Equivalence: All primary electrical specifications match exactly, including voltage rating, current capacity, forward voltage drop, and recovery characteristics. The diode operates identically within the specified parameter set.

Package Compatibility: Both parts utilize the DO-15 axial through-hole package, enabling direct board-level substitution without mechanical redesign or PCB layout modification.

Product Status: The FR152G maintains active production status, ensuring supply chain availability and long-term sourcing reliability. The FR152 obsolete status necessitates this substitution for new production and field replacement scenarios.

Regulatory Compliance: The FR152G carries ROHS3 compliance certification, providing enhanced environmental and regulatory alignment compared to the FR152. Both parts maintain REACH unaffected status and identical ECCN/HTSUS classifications.

Temperature Consideration: The FR152G minimum junction temperature of -55°C accommodates standard industrial applications. Applications requiring operation below -55°C require design review to confirm FR152G suitability or identification of alternative parts with extended low-temperature ratings.

Frequently Asked Questions (FAQ)

Q: Can FR152G replace FR152 in existing circuit designs?

A: Yes. The FR152G provides direct electrical and mechanical substitution. Identical voltage, current, and recovery specifications ensure equivalent circuit performance. Through-hole axial package compatibility permits direct board-level replacement.

Q: What is the primary reason for substituting FR152 with FR152G?

A: The FR152 is classified as obsolete. The FR152G is an active product from Taiwan Semiconductor Corporation with identical electrical specifications, ensuring continued component availability for production and field service applications.

Q: Are there differences in operating temperature ranges between these parts?

A: The FR152 operates from -65°C to 150°C junction temperature, while the FR152G operates from -55°C to 150°C. For applications requiring operation below -55°C, the FR152G may not be suitable. Standard industrial and commercial applications operate within the FR152G temperature range.

Q: Does package designation affect substitution compatibility?

A: No. Both parts are designated DO-15 or DO-204AC, which are equivalent package designations for the same physical axial through-hole configuration. The parts are mechanically and electrically interchangeable on the circuit board.

Q: What compliance advantages does FR152G provide?

A: The FR152G carries ROHS3 compliance certification, meeting current environmental and regulatory requirements. Both parts maintain REACH unaffected status and identical trade classification codes (ECCN: EAR99, HTSUS: 8541.10.0080).

Q: Are there any electrical performance differences between FR152 and FR152G?

A: No. All critical electrical parameters are identical: 100V reverse voltage, 1.5A average rectified current, 1.3V forward voltage drop at rated current, 150ns reverse recovery time, and 5µA reverse leakage current. The parts exhibit equivalent circuit behavior.

Q: What is the capacitance difference noted in the specifications?

A: The FR152 specifies 30pF capacitance at 4V, 1MHz, while the FR152G specifies 20pF at the same conditions. This difference does not affect substitution suitability for standard rectifier applications. High-frequency or precision timing applications should evaluate this parameter against circuit requirements.

Q: Is board-level rework required for substitution?

A: No. The FR152G is a direct through-hole axial replacement. No PCB layout modification, rework, or design change is necessary. The component installs identically to the FR152.