CSFC305-G Equivalent & Substitute Parts Reference

Part Overview

The CSFC305-G is a general-purpose rectifier diode manufactured by Comchip Technology, rated for 600 V DC reverse voltage and 3 A average rectified current in a surface mount DO-214AB (SMC) package. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical ratings and mechanical compatibility are maintained across the specified parameter set, enabling design flexibility and supply chain continuity for 600 V / 3 A rectification applications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 3 A	V
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	5	µA @ 600 V
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction (Max)	150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the CSFC305-G are grouped based on strict electrical and mechanical compatibility criteria. All substitute diodes must satisfy the following mandatory parameters:

Primary Compatibility Criteria:

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): 3 A
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Secondary Electrical Parameters (Allowable Variation):

Voltage - Forward (Vf) (Max) @ If: Rated at 3 A or 2.5 A reference current
Reverse Recovery Time (trr): Fast Recovery (≤500 ns) or Standard Recovery (>500 ns)
Current - Reverse Leakage @ Vr: 5–10 µA @ 600 V
Operating Temperature - Junction: Minimum -65°C to -50°C; Maximum 150°C or higher

Substitutes are classified into two technology groups: Fast Recovery diodes (trr ≤ 500 ns) and Standard Recovery diodes (trr > 500 ns). Both groups are electrically interchangeable at the 600 V / 3 A rating, with selection dependent on application switching frequency requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	trr [ns]	Ir @ Vr [µA]	Tj (Max) [°C]	Package	RoHS
CSFC305-G	Comchip Technology	600	3	1.3 @ 3 A	50	5 @ 600 V	150	DO-214AB	ROHS3
ER3J-TP	Micro Commercial Co	600	3	1.7 @ 3 A	35	5 @ 600 V	175	DO-214AB	ROHS3
MURS360T3G	onsemi	600	3	1.25 @ 3 A	75	10 @ 600 V	175	DO-214AB	ROHS3
RS3J-13-F	Diodes Incorporated	600	3	1.3 @ 3 A	250	5 @ 600 V	150	DO-214AB	ROHS3
RS3J-E3/57T	Vishay General Semiconductor	600	3	1.3 @ 2.5 A	250	10 @ 600 V	150	DO-214AB	ROHS3
RS3JHE3_A/H	Vishay General Semiconductor	600	3	1.3 @ 2.5 A	250	10 @ 600 V	150	DO-214AB	ROHS3
S3J	Diotec Semiconductor	600	3	1.15 @ 3 A	1500	5 @ 600 V	150	DO-214AB	ROHS3
S3J-13-F	Diodes Incorporated	600	3	1.15 @ 3 A	N/A	10 @ 600 V	150	DO-214AB	ROHS3
S3J-E3/57T	Vishay General Semiconductor	600	3	1.15 @ 2.5 A	2500	10 @ 600 V	150	DO-214AB	ROHS3
S3J-E3/9AT	Vishay General Semiconductor	600	3	1.15 @ 2.5 A	2500	10 @ 600 V	150	DO-214AB	ROHS3
S3J-M3/57T	Vishay General Semiconductor	600	3	1.15 @ 2.5 A	2500	10 @ 600 V	150	DO-214AB	ROHS3

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the CSFC305-G. Selection among substitutes is determined by application-specific switching frequency and thermal requirements:

Fast Recovery Technology (trr ≤ 500 ns): ER3J-TP, MURS360T3G, and CSFC305-G are suitable for high-frequency switching applications. ER3J-TP and MURS360T3G offer extended maximum junction temperature (175°C) compared to the CSFC305-G (150°C), providing thermal margin in demanding environments. MURS360T3G exhibits the lowest forward voltage (1.25 V @ 3 A) among fast recovery options.

Standard Recovery Technology (trr > 500 ns): RS3J-13-F, RS3J-E3/57T, RS3JHE3_A/H, S3J, S3J-13-F, S3J-E3/57T, S3J-E3/9AT, and S3J-M3/57T are suitable for low-frequency rectification and power supply applications where switching losses are not critical. RS3JHE3_A/H carries AEC-Q101 automotive qualification, appropriate for automotive-grade applications. Vishay parts (RS3J-E3/57T, S3J-E3/57T, S3J-E3/9AT, S3J-M3/57T) specify forward voltage at 2.5 A reference current rather than 3 A.

All substitutes are packaged in DO-214AB (SMC) surface mount format with Moisture Sensitivity Level 1 (Unlimited), matching the CSFC305-G mechanical and environmental specifications.

Frequently Asked Questions (FAQ)

Q1: Can I substitute CSFC305-G with any part listed in the table?

A: Yes, all listed parts are electrically and mechanically compatible at the 600 V / 3 A rating and share identical DO-214AB (SMC) packaging. Selection depends on application switching frequency and thermal operating range. Fast recovery diodes (trr ≤ 500 ns) are suitable for high-frequency circuits; standard recovery diodes (trr > 500 ns) are suitable for low-frequency rectification.

Q2: What is the difference between fast recovery and standard recovery diodes?

A: Fast recovery diodes exhibit reverse recovery time (trr) of 500 ns or less, reducing switching losses in high-frequency applications. Standard recovery diodes have trr greater than 500 ns and are optimized for low-frequency power rectification. Both types are electrically rated for 600 V / 3 A and are interchangeable from a voltage and current perspective.

Q3: Why do some substitute parts specify forward voltage at 2.5 A instead of 3 A?

A: Forward voltage is a function of diode current. Parts specifying Vf @ 2.5 A (such as RS3J-E3/57T and S3J-E3/57T) provide forward voltage data at a lower reference current. At the full 3 A operating point, forward voltage will be higher than the specified value. This does not affect substitutability at the 3 A rating; it reflects manufacturer datasheet conventions.

Q4: Is the CSFC305-G suitable for automotive applications?

A: The CSFC305-G is not marked with automotive qualification. For automotive-grade applications, RS3JHE3_A/H is qualified to AEC-Q101 and is the appropriate substitute.

Q5: What is Moisture Sensitivity Level (MSL) 1?

A: MSL 1 indicates unlimited shelf life without moisture baking requirements. All listed parts carry MSL 1, meaning they can be stored and handled without special moisture control procedures.

Q6: Can I use MURS360T3G as a direct replacement for CSFC305-G?

A: Yes. MURS360T3G is electrically and mechanically compatible. It offers lower forward voltage (1.25 V vs. 1.3 V) and extended maximum junction temperature (175°C vs. 150°C), making it suitable for high-frequency applications with higher thermal margins.

Q7: What packaging options are available for these substitutes?

A: All substitutes are supplied in DO-214AB (SMC) surface mount package. Packaging format variations (Tape & Reel, Cut Tape, Digi-Reel) do not affect electrical or mechanical compatibility; they reflect supplier distribution methods.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message