CBR2-020 Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The CBR2-020 is a single-phase bridge rectifier manufactured by Central Semiconductor Corp, rated for 200 V peak reverse voltage and 2 A average rectified current. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system maintenance and new design implementations. The through-hole A Case package and standard rectification technology establish the baseline for compatible alternatives.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Voltage - Peak Reverse (Max)	200 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 2 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
Technology	Standard

Substitute Part Grouping Explanation

Substitution of the CBR2-020 is determined by strict equivalence across the following critical parameters:

Voltage Rating: Peak reverse voltage must equal or exceed 200 V
Current Rating: Average rectified current must equal or exceed 2 A
Diode Configuration: Single-phase bridge rectifier topology
Forward Voltage Characteristics: Maximum forward voltage at rated current must not exceed 1.1 V @ 2 A
Reverse Leakage: Current leakage at rated voltage must not exceed specified limits
Operating Temperature Range: Must accommodate the required thermal envelope
Mounting Technology: Through-hole configuration for PCB compatibility
Package Form Factor: Physical dimensions and pin configuration must align with application constraints

The 2W02G-E4/51 from Vishay General Semiconductor - Diodes Division meets all substitution criteria as an active product with identical electrical ratings and compatible through-hole packaging.

Parameter Comparison

Parameter	CBR2-020	2W02G-E4/51	Compatibility
Manufacturer	Central Semiconductor Corp	Vishay General Semiconductor - Diodes Division	Different manufacturer
Product Status	Obsolete	Active	Substitute is actively produced
Diode Type	Single Phase	Single Phase	Equivalent
Voltage - Peak Reverse (Max)	200 V	200 V	Equivalent
Current - Average Rectified (Io)	2 A	2 A	Equivalent
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 2 A	1.1 V @ 2 A	Equivalent
Current - Reverse Leakage @ Vr	10 µA @ 200 V	5 µA @ 200 V	Substitute exceeds specification
Operating Temperature Range	-65°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)	Substitute range is narrower at lower limit
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	4-Circular, A Case	4-Circular, WOG	Different case designation; verify physical compatibility
Technology	Standard	Standard	Equivalent
RoHS Status	Not specified	ROHS3 Compliant	Substitute meets modern compliance
REACH Status	Not specified	REACH Unaffected	Substitute meets regulatory requirements

Engineering Selection Recommendations

The 2W02G-E4/51 is the designated manufacturer-recommended substitute for the obsolete CBR2-020. Selection of this alternative is supported by:

Electrical Equivalence: Identical voltage and current ratings with matching forward voltage characteristics
Improved Reverse Leakage: The 2W02G-E4/51 demonstrates superior reverse leakage performance (5 µA versus 10 µA), indicating enhanced device quality
Active Production Status: The substitute is currently manufactured and stocked, ensuring long-term availability and supply chain continuity
Regulatory Compliance: ROHS3 and REACH compliance certifications satisfy modern environmental and safety standards
Through-Hole Compatibility: Both components utilize through-hole mounting technology for direct PCB integration

Physical package verification is required to confirm dimensional compatibility between the A Case and WOG case designations in the target application.

Frequently Asked Questions (FAQ)

Q: Can the 2W02G-E4/51 directly replace the CBR2-020 in existing designs?

A: Electrical substitution is valid based on identical voltage, current, and forward voltage ratings. Physical package compatibility must be verified, as the A Case and WOG case designations differ. Consult mechanical drawings and PCB footprint specifications to confirm fit.

Q: What is the significance of the lower reverse leakage current in the 2W02G-E4/51?

A: The 2W02G-E4/51 exhibits 5 µA reverse leakage at 200 V compared to 10 µA for the CBR2-020. This represents improved device performance and does not create compatibility issues; the substitute meets or exceeds the original specification.

Q: Does the narrower operating temperature range of the 2W02G-E4/51 affect substitution?

A: The 2W02G-E4/51 operates from -55°C to 150°C, compared to -65°C to 150°C for the CBR2-020. If the application requires operation below -55°C, the substitute is not suitable. For standard industrial and commercial temperature ranges, the substitute is acceptable.

Q: Are there compliance differences between the original and substitute parts?

A: The CBR2-020 specifications do not document RoHS or REACH compliance status. The 2W02G-E4/51 is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for new designs and manufacturing environments.

Q: What packaging format is supplied for the 2W02G-E4/51?

A: The 2W02G-E4/51 is supplied in bulk packaging, whereas the CBR2-020 packaging format is not specified in available data. Confirm packaging requirements with the supplier for procurement planning.

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