3N255-M Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The 3N255-M is a single-phase bridge rectifier manufactured by Central Semiconductor Corp, rated for 200 V peak reverse voltage with 2 A average rectified current. This component is classified as obsolete, which necessitates identification of active equivalent parts for continued system support and new design implementations. Bridge rectifiers in this specification class are used in AC-to-DC conversion applications requiring through-hole mounting and standard rectification technology.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	200 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max)	1.1 V
Current - Reverse Leakage @ Vr	10 µA @ 200 V
Operating Temperature Range	-65°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-SIP
Supplier Device Package	B-M

Substitute Part Grouping Explanation

Substitution of the 3N255-M is determined by strict equivalence across the following critical parameters:

Diode Type: Single Phase configuration
Voltage Rating: 200 V peak reverse voltage (Vrrm)
Current Rating: 2 A average rectified current (Io)
Forward Voltage: 1.1 V maximum at specified forward current
Reverse Leakage: 10 µA at 200 V
Temperature Range: -65°C to 150°C junction temperature
Mounting and Package: Through-hole 4-SIP B-M package configuration
Compliance: ROHS3 Compliant, REACH Unaffected

The substitute part CBR2-L020M PBFREE meets all these electrical and mechanical parameters while offering active product status and improved availability.

Parameter Comparison

Parameter	3N255-M	CBR2-L020M PBFREE	Match Status
Diode Type	Single Phase	Single Phase	Equivalent
Technology	Standard	Standard	Equivalent
Voltage - Peak Reverse (Max)	200 V	200 V	Equivalent
Current - Average Rectified (Io)	2 A	2 A	Equivalent
Voltage - Forward (Vf) (Max)	1.1 V @ 3.14 A	1.1 V @ 2 A	Equivalent
Current - Reverse Leakage @ Vr	10 µA @ 200 V	10 µA @ 200 V	Equivalent
Operating Temperature	-65°C ~ 150°C (TJ)	-65°C ~ 150°C (TJ)	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	4-SIP	4-SIP	Equivalent
Supplier Device Package	B-M	B-M	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent
Product Status	Obsolete	Active	Improved

Engineering Selection Recommendations

The CBR2-L020M PBFREE is a direct parametric equivalent to the 3N255-M bridge rectifier. Both components share identical electrical specifications, thermal operating range, and mechanical package configuration. The primary distinction is product status: the 3N255-M is obsolete while the CBR2-L020M PBFREE maintains active production status.

Selection of the CBR2-L020M PBFREE is supported by:

Full electrical parameter equivalence across voltage, current, and thermal specifications
Identical through-hole 4-SIP B-M package footprint for direct PCB compatibility
Active product status ensuring long-term availability and supply chain continuity
Equivalent regulatory compliance (ROHS3 Compliant, REACH Unaffected)
Lead-free formulation (PBFREE designation) meeting modern manufacturing standards

Frequently Asked Questions (FAQ)

Q: Can the CBR2-L020M PBFREE be used as a direct replacement for the 3N255-M?

A: Yes. The CBR2-L020M PBFREE is a parametric equivalent with identical electrical ratings (200 V, 2 A), forward voltage characteristics, reverse leakage specifications, and operating temperature range. Both components use the same 4-SIP B-M through-hole package.

Q: Are there any differences in forward voltage performance between these parts?

A: Both parts specify 1.1 V maximum forward voltage. The 3N255-M is rated at 1.1 V @ 3.14 A, while the CBR2-L020M PBFREE is rated at 1.1 V @ 2 A. This difference reflects measurement conditions at different current levels; the maximum forward voltage specification remains equivalent.

Q: What is the significance of the PBFREE designation on the CBR2-L020M?

A: PBFREE indicates lead-free construction, compliant with ROHS3 standards. Both the original 3N255-M and substitute CBR2-L020M PBFREE are ROHS3 compliant, confirming compatibility with modern manufacturing and environmental requirements.

Q: Will the CBR2-L020M PBFREE fit the same PCB footprint as the 3N255-M?

A: Yes. Both components use identical 4-SIP through-hole package configuration with B-M supplier device package designation, ensuring direct mechanical and electrical compatibility on existing PCB layouts.

Q: Why is the 3N255-M classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The CBR2-L020M PBFREE maintains active production status, providing assured availability for replacement and new applications.

Q: Are the reverse leakage characteristics identical?

A: Yes. Both the 3N255-M and CBR2-L020M PBFREE specify 10 µA maximum reverse leakage current at 200 V reverse voltage, ensuring equivalent performance in high-impedance applications.

Q: What is the operating temperature range for both parts?

A: Both components operate across -65°C to 150°C junction temperature range, providing identical thermal performance specifications for industrial and extended-temperature applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message