CR3F-080 BK Equivalent & Substitute Parts

Part Overview

The CR3F-080 BK is a general-purpose rectifier diode manufactured by Central Semiconductor Corp, rated for 800 V DC reverse voltage and 3 A average rectified current in a through-hole DO-201 package. This part is classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating available package variants and current product status.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	800	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.2	V @ 3 A
Reverse Recovery Time (trr)	500	ns
Current - Reverse Leakage @ Vr	5	µA @ 800 V
Mounting Type	Through Hole	-
Package / Case	DO-201AA, DO-27, Axial	-
Operating Temperature - Junction	-55 to 125	°C

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Mandatory Electrical Parameters:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 800 V
Current - Average Rectified (Io): Must equal or exceed 3 A
Mounting Type: Must be Through Hole
Package / Case: Must be compatible axial package (DO-201, DO-201AD, DO-27)

Compatible Substitutes:

The following parts meet or exceed the CR3F-080 BK electrical and mechanical requirements:

1N5407-B (Diodes Incorporated) – Matches 800 V / 3 A rating with active product status
1N5407-E3/54 (Vishay General Semiconductor) – Matches 800 V / 3 A rating with active product status
1N5407-E3/73 (Vishay General Semiconductor) – Matches 800 V / 3 A rating with active product status
60S8-TP (Micro Commercial Co) – Exceeds current rating at 6 A with 800 V rating and active product status

All substitute parts maintain through-hole axial mounting and operate within compatible temperature ranges.

Parameter Comparison

Parameter	CR3F-080 BK	1N5407-B	1N5407-E3/54	1N5407-E3/73	60S8-TP
Manufacturer	Central Semiconductor Corp	Diodes Incorporated	Vishay General Semiconductor	Vishay General Semiconductor	Micro Commercial Co
Voltage - DC Reverse (Vr) (Max)	800 V	800 V	800 V	800 V	800 V
Current - Average Rectified (Io)	3 A	3 A	3 A	3 A	6 A
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 3 A	1 V @ 3 A	1.2 V @ 3 A	1.2 V @ 3 A	1 V @ 6 A
Speed	Fast Recovery ≤ 500ns	Standard Recovery >500ns	Standard Recovery >500ns	Standard Recovery >500ns	Standard Recovery >500ns
Current - Reverse Leakage @ Vr	5 µA @ 800 V	10 µA @ 800 V	5 µA @ 800 V	5 µA @ 800 V	5 µA @ 800 V
Package / Case	DO-201AA, DO-27, Axial	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial
Operating Temperature - Junction	-55 to 125°C	-65 to 150°C	-50 to 150°C	-50 to 150°C	-55 to 150°C
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Direct Electrical Equivalents):

The 1N5407-E3/54 and 1N5407-E3/73 from Vishay General Semiconductor are direct electrical equivalents to the CR3F-080 BK. Both parts maintain the 800 V / 3 A rating, match forward voltage characteristics, and are ROHS3 compliant with active product status. These parts are available in cut tape packaging with high inventory levels (5985 and 5400 units respectively).

Alternative Substitute (Higher Current Rating):

The 60S8-TP from Micro Commercial Co provides a 6 A current rating while maintaining the 800 V voltage specification. This part is suitable for applications where higher current capacity is acceptable or beneficial. It is ROHS3 compliant and actively manufactured.

Secondary Substitute (Lower Forward Voltage):

The 1N5407-B from Diodes Incorporated offers a lower forward voltage (1 V @ 3 A) compared to the original part (1.2 V @ 3 A), resulting in reduced power dissipation. This part is ROHS3 compliant and actively manufactured. Note that reverse leakage current is specified at 10 µA @ 800 V, which is higher than the original specification.

All substitute parts are REACH unaffected and classified under ECCN EAR99 with HTSUS code 8541.10.0080, matching the original part's regulatory classification.

Frequently Asked Questions (FAQ)

Q: Can the 60S8-TP be used as a direct replacement for the CR3F-080 BK?

A: Yes. The 60S8-TP meets all mandatory electrical parameters with a higher current rating (6 A vs. 3 A). The higher current capacity does not create incompatibility; it provides additional design margin. Package and mounting type are compatible.

Q: What is the difference between the 1N5407-E3/54 and 1N5407-E3/73?

A: Both parts are electrically identical with 800 V / 3 A ratings and identical electrical specifications. The designations reflect different tape reel configurations or manufacturing dates. Either part is suitable for substitution.

Q: Why does the CR3F-080 BK specify fast recovery (≤500ns) while substitutes specify standard recovery (>500ns)?

A: The original part features fast recovery characteristics. Substitute parts with standard recovery characteristics remain electrically compatible for general-purpose rectification applications. Applications requiring fast recovery performance should be evaluated separately.

Q: Is the 1N5407-B suitable for high-temperature applications?

A: The 1N5407-B operates to 150°C junction temperature, exceeding the original part's 125°C maximum. It is suitable for applications requiring extended temperature range operation.

Q: What packaging options are available for substitute parts?

A: The 1N5407-E3/54 and 1N5407-E3/73 are supplied in cut tape (CT) packaging. The 1N5407-B is supplied in bulk packaging. The 60S8-TP is supplied in tape & reel (TR) packaging. All maintain through-hole axial mounting compatibility.

Q: Are all substitute parts RoHS compliant?

A: Yes. All four substitute parts are ROHS3 compliant. The original CR3F-080 BK RoHS status is not specified in available documentation.

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