CFRC303-G Equivalent & Substitute Parts Reference

Part Overview

The CFRC303-G is a general-purpose rectifier diode manufactured by Comchip Technology, rated for 200 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 with unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative sourcing is required for supply chain optimization, or when design flexibility permits selection from multiple qualified manufacturers offering identical or compatible electrical and mechanical specifications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 3 A	V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 200 V
Mounting Type	Surface Mount	—
Package / Case	DO-214AB, SMC	—
Operating Temperature - Junction (Max)	150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the CFRC303-G is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 200 V
Current - Average Rectified (Io): 3 A
Mounting Type: Surface Mount
Package / Case: DO-214AB, SMC
RoHS Status: ROHS3 Compliant

Allowable Variation Parameters:

Voltage - Forward (Vf) (Max) @ If: Substitutes may range from 875 mV to 1.3 V at rated current
Reverse Recovery Time (trr): Substitutes may range from 20 ns to 150 ns (faster recovery times are acceptable)
Current - Reverse Leakage @ Vr: Substitutes may range from 5 µA to 10 µA at 200 V
Operating Temperature - Junction: Substitutes may extend the upper or lower temperature range beyond 150°C

Substitute parts are grouped into two categories based on recovery speed characteristics:

Category A - Fast Recovery (trr ≤ 40 ns): ER3D-TP, ES3D, ES3D-13-F, ESH3D-E3/57T, MURS320-13-F, MURS320-E3/57T

Category B - Standard/Moderate Recovery (trr ≥ 150 ns): RS3D-13-F, RS3D-E3/57T, S3D, S3D-13-F

All listed substitutes maintain identical voltage and current ratings and are packaged in DO-214AB (SMC) surface mount format.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Ir @ Vr [µA]	Tj (Max) [°C]	Product Status	Inventory [Pcs]
CFRC303-G	Comchip Technology	200	3	1.3 @ 3 A	150	5 @ 200 V	150	Active	689
ER3D-TP	Micro Commercial Co	200	3	0.95 @ 3 A	35	5 @ 200 V	175	Active	16840
ES3D	Diotec Semiconductor	200	3	0.9 @ 3 A	20	5 @ 200 V	150	Active	131200
ES3D-13-F	Diodes Incorporated	200	3	0.9 @ 3 A	25	10 @ 200 V	150	Active	45182
ESH3D-E3/57T	Vishay General Semiconductor - Diodes Division	200	3	0.9 @ 3 A	40	5 @ 200 V	175	Active	10200
MURS320-13-F	Diodes Incorporated	200	3	0.875 @ 3 A	25	5 @ 200 V	175	Active	7630
MURS320-E3/57T	Vishay General Semiconductor - Diodes Division	200	3	0.875 @ 3 A	35	5 @ 200 V	175	Active	2728
RS3D-13-F	Diodes Incorporated	200	3	1.3 @ 3 A	150	5 @ 200 V	150	Active	5250
RS3D-E3/57T	Vishay General Semiconductor - Diodes Division	200	3	1.3 @ 2.5 A	150	10 @ 200 V	150	Active	15200
S3D	Diodes Incorporated	200	3	1.15 @ 3 A	2000	10 @ 200 V	150	Obsolete	1076
S3D-13-F	Diodes Incorporated	200	3	1.15 @ 3 A	Not Specified	10 @ 200 V	150	Active	295099

Engineering Selection Recommendations

Primary Selection Criteria:

All substitute parts listed maintain Active product status except S3D, which is classified as Obsolete and should not be selected for new designs or long-term production applications. All Active substitutes are ROHS3 compliant and REACH unaffected, meeting the same regulatory requirements as the CFRC303-G.

Fast Recovery Substitutes (Category A): ER3D-TP, ES3D, ES3D-13-F, ESH3D-E3/57T, MURS320-13-F, and MURS320-E3/57T offer reverse recovery times between 20 ns and 40 ns, significantly faster than the CFRC303-G (150 ns). These parts are suitable for applications requiring reduced switching losses and improved efficiency. ES3D demonstrates the highest inventory availability (131,200 pcs) among fast recovery options.

Standard Recovery Substitutes (Category B): RS3D-13-F and RS3D-E3/57T maintain the same 150 ns reverse recovery time as the CFRC303-G, providing direct electrical equivalence with identical forward voltage characteristics (1.3 V @ 3 A). These parts are appropriate for applications where recovery speed is not a design constraint.

Inventory Considerations: S3D-13-F offers the highest inventory level (295,099 pcs) among all substitutes, followed by ES3D (131,200 pcs) and RS3D-E3/57T (15,200 pcs). The CFRC303-G itself maintains 689 pcs in stock.

Temperature Range: ER3D-TP, ESH3D-E3/57T, MURS320-13-F, and MURS320-E3/57T extend the maximum junction temperature to 175°C, compared to 150°C for the CFRC303-G and most other substitutes. This extended range may be beneficial for high-temperature applications.

Frequently Asked Questions (FAQ)

Q: Can I substitute a fast recovery diode (trr = 20-40 ns) for the CFRC303-G (trr = 150 ns)?

A: Yes. Fast recovery substitutes such as ES3D, ER3D-TP, and MURS320-13-F are electrically compatible with the CFRC303-G. They maintain identical voltage (200 V) and current (3 A) ratings and are packaged in the same DO-214AB (SMC) format. Faster recovery times reduce switching losses and are generally beneficial in rectification circuits. No circuit modification is required.

Q: What is the difference between the CFRC303-G and RS3D-13-F?

A: Both parts are electrically equivalent with identical forward voltage (1.3 V @ 3 A) and reverse recovery time (150 ns). The primary difference is manufacturer: CFRC303-G is from Comchip Technology, while RS3D-13-F is from Diodes Incorporated. Both are Active, ROHS3 compliant, and packaged in DO-214AB (SMC).

Q: Why is S3D listed as Obsolete?

A: S3D is classified as Obsolete product status by Diodes Incorporated. While limited inventory (1,076 pcs) remains available, this part should not be selected for new designs or applications requiring long-term component availability. Active alternatives such as S3D-13-F (same manufacturer, 295,099 pcs in stock) should be used instead.

Q: Are all substitute parts surface mount in DO-214AB packaging?

A: Yes. All listed substitutes are surface mount components in DO-214AB (SMC) package format, identical to the CFRC303-G. Packaging compatibility is guaranteed across all substitutes.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) packaging?

A: Tape & Reel (TR) packaging is supplied on continuous reels suitable for automated pick-and-place assembly equipment. Cut Tape (CT) packaging is supplied in shorter tape segments. Both formats contain identical components; the difference is in supply format and handling. Selection depends on manufacturing equipment and volume requirements.

Q: Can I use MURS320-13-F as a direct replacement for CFRC303-G?

A: Yes. MURS320-13-F is a direct substitute with identical voltage (200 V) and current (3 A) ratings, DO-214AB (SMC) packaging, and ROHS3 compliance. The forward voltage is slightly lower (0.875 V vs. 1.3 V @ 3 A) and recovery time is faster (25 ns vs. 150 ns), both of which are acceptable variations. The operating temperature range extends to 175°C, providing additional thermal margin.

Q: Which substitute offers the best availability?

A: S3D-13-F from Diodes Incorporated offers the highest inventory level at 295,099 pcs. ES3D from Diotec Semiconductor is the second option with 131,200 pcs available. Both are Active products with full ROHS3 compliance.

Q: What does "Fast Recovery ≤ 500ns, > 200mA (Io)" mean?

A: This specification indicates the diode exhibits fast recovery characteristics with reverse recovery time not exceeding 500 ns when switching currents greater than 200 mA. The CFRC303-G and most substitutes meet this criterion. Faster recovery times (20-40 ns) indicate superior switching performance.

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