CBR1F-020 Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The CBR1F-020 is a single-phase bridge rectifier manufactured by Central Semiconductor Corp, rated for 200 V peak reverse voltage and 1.5 A average rectified current. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part features a through-hole A Case package suitable for standard rectification circuits requiring moderate current handling at 200 V operation.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	200 V
Current - Average Rectified (Io)	1.5 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1 A
Current - Reverse Leakage @ Vr	10 µA @ 200 V
Operating Temperature Range	-65°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-Circular, A Case
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CBR1F-020 is determined by strict equivalence across the following critical parameters:

Diode Type: Single Phase bridge rectifier configuration
Voltage Rating: 200 V peak reverse voltage (Vrrm)
Current Rating: 1.5 A average rectified current (Io)
Mounting: Through-hole technology
Package Form Factor: 4-Circular configuration compatible with A Case or equivalent footprint

The W02G-E4/51 qualifies as a direct substitute based on matching all critical electrical specifications and through-hole mounting compatibility. Both parts operate within the same voltage and current envelope, ensuring functional equivalence in rectification applications.

Parameter Comparison

Parameter	CBR1F-020	W02G-E4/51	Match Status
Manufacturer	Central Semiconductor Corp	Vishay General Semiconductor - Diodes Division	Different
Diode Type	Single Phase	Single Phase	Equivalent
Technology	Standard	Standard	Equivalent
Voltage - Peak Reverse (Max)	200 V	200 V	Equivalent
Current - Average Rectified (Io)	1.5 A	1.5 A	Equivalent
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1 A	1 V @ 1 A	W02G-E4/51 Lower
Current - Reverse Leakage @ Vr	10 µA @ 200 V	5 µA @ 200 V	W02G-E4/51 Lower
Operating Temperature Range	-65°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)	CBR1F-020 Wider
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	4-Circular, A Case	4-Circular, WOG	Compatible Form Factor
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent
Product Status	Obsolete	Active	Substitute Active
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent

Engineering Selection Recommendations

The W02G-E4/51 serves as the primary substitute for the obsolete CBR1F-020. Selection is justified on the following basis:

Electrical Equivalence: Both parts maintain identical voltage and current ratings (200 V, 1.5 A), ensuring direct functional replacement in rectification circuits.

Performance Advantage: The W02G-E4/51 demonstrates improved electrical characteristics with lower forward voltage drop (1 V vs. 1.3 V) and reduced reverse leakage current (5 µA vs. 10 µA), resulting in lower power dissipation and improved circuit efficiency.

Active Product Status: The W02G-E4/51 is classified as active, ensuring long-term availability and supply chain continuity compared to the obsolete CBR1F-020.

Compliance: Both parts maintain REACH Unaffected status and equivalent moisture sensitivity ratings, supporting regulatory and environmental requirements.

Temperature Consideration: The CBR1F-020 supports a wider operating temperature range (-65°C to 150°C) compared to the W02G-E4/51 (-55°C to 150°C). Applications requiring operation below -55°C require evaluation of alternative solutions.

Frequently Asked Questions (FAQ)

Q: Can the W02G-E4/51 directly replace the CBR1F-020 in existing designs?

A: Yes, the W02G-E4/51 provides direct electrical equivalence for 200 V, 1.5 A single-phase bridge rectifier applications. Both parts use through-hole mounting with compatible 4-circular package geometry. Physical board layout verification is recommended to confirm lead spacing compatibility between A Case and WOG package variants.

Q: What are the key differences between these parts?

A: The primary differences are manufacturer origin, product status (obsolete vs. active), and improved electrical performance in the W02G-E4/51. The substitute exhibits lower forward voltage drop and reverse leakage, reducing power dissipation. The CBR1F-020 supports a wider temperature range (-65°C vs. -55°C minimum).

Q: Are there any compliance or certification differences?

A: Both parts maintain equivalent REACH Unaffected status and MSL 1 (Unlimited) moisture sensitivity ratings. No compliance barriers exist for substitution in standard applications.

Q: What should be verified before implementing this substitute?

A: Confirm physical package compatibility (A Case vs. WOG footprint) on the PCB. Verify that the operating temperature range of -55°C to 150°C meets application requirements. Validate that improved electrical characteristics (lower Vf and leakage) do not introduce unintended circuit behavior in temperature-sensitive or precision applications.

Q: Is the W02G-E4/51 available in the same packaging format?

A: Both parts use 4-circular through-hole packages. The CBR1F-020 uses A Case packaging, while the W02G-E4/51 uses WOG packaging. These represent different physical case styles with the same electrical footprint compatibility for standard bridge rectifier applications.

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