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CFRA101-G Equivalent & Substitute Parts Reference
Part Overview
The CFRA101-G is a general-purpose rectifier diode manufactured by Comchip Technology, rated for 50 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (SMA) package. This part is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).
Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameters. The CFRA101-G operates with a maximum forward voltage of 1.3 V at 1 A and features fast recovery characteristics with a reverse recovery time of 150 ns. Alternative sources for this diode are necessary to support supply chain flexibility, inventory optimization, and design continuity across multiple manufacturing partners.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - DC Reverse (Vr) (Max) | 50 | V |
| Current - Average Rectified (Io) | 1 | A |
| Voltage - Forward (Vf) (Max) @ If | 1.3 V @ 1 A | V |
| Reverse Recovery Time (trr) | 150 | ns |
| Current - Reverse Leakage @ Vr | 5 | µA @ 50 V |
| Speed Classification | Fast Recovery ≤ 500ns, > 200mA (Io) | — |
| Mounting Type | Surface Mount | — |
| Package / Case | DO-214AC, SMA | — |
| Operating Temperature - Junction (Max) | 150 | °C |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution eligibility for the CFRA101-G is determined by strict equivalence across the following critical parameters:
Mandatory Equivalence Criteria:
- Voltage - DC Reverse (Vr) (Max): 50 V
- Current - Average Rectified (Io): 1 A
- Mounting Type: Surface Mount
- Package / Case: DO-214AC or SMA compatible
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level (MSL): 1 (Unlimited)
Performance Parameters (Must Not Exceed Specified Limits):
- Voltage - Forward (Vf) (Max) @ If: ≤ 1.3 V @ 1 A
- Reverse Recovery Time (trr): ≤ 150 ns (fast recovery classification)
- Current - Reverse Leakage @ Vr: ≤ 5 µA @ 50 V
- Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Substitute parts identified in this reference maintain these electrical and mechanical specifications. Parts with superior performance characteristics (lower forward voltage, faster recovery time, lower leakage current) are included as they remain functionally compatible within the application envelope of the CFRA101-G.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Vr (Max) [V] | Io [A] | Vf (Max) @ 1A [V] | trr [ns] | Ir @ Vr [µA] | Package | Product Status | RoHS3 | MSL |
|---|---|---|---|---|---|---|---|---|---|---|
| CFRA101-G | Comchip Technology | 50 | 1 | 1.3 | 150 | 5 | DO-214AC (SMA) | Active | Yes | 1 |
| RS1A-13-F | Diodes Incorporated | 50 | 1 | 1.3 | 150 | 5 | DO-214AC (SMA) | Active | Yes | 1 |
| EGF1A | Fairchild Semiconductor | 50 | 1 | 1.0 | 50 | 10 | DO-214AC (SMA) | Active | Yes | Undefined |
| EGF1A-E3/67A | Vishay General Semiconductor - Diodes Division | 50 | 1 | 1.0 | 50 | 5 | DO-214BA (GF1) | Active | Yes | 1 |
| ES1A | YAGEO | 50 | 1 | 0.95 | — | — | DO-214AC (SMA) | Active | Yes | 1 |
| ES1A-13-F | Diodes Incorporated | 50 | 1 | 0.92 | 25 | 5 | DO-214AC (SMA) | Active | Yes | 1 |
| ES1A-E3/5AT | Vishay General Semiconductor - Diodes Division | 50 | 1 | 0.92 | 25 | 5 | DO-214AC (SMA) | Active | Yes | 1 |
| ES1A-E3/61T | Vishay General Semiconductor - Diodes Division | 50 | 1 | 0.92 | 25 | 5 | DO-214AC (SMA) | Active | Yes | 1 |
| ES1A-LTP | Micro Commercial Co | 50 | 1 | 0.95 | 35 | 5 | DO-214AC (SMA) | Not For New Designs | Yes | 1 |
| ES1A-M3/61T | Vishay General Semiconductor - Diodes Division | 50 | 1 | 0.92 | 25 | 5 | DO-214AC (SMA) | Active | Yes | 1 |
| GF1A | onsemi | 50 | 1 | 1.0 | 2000 | 5 | DO-214AC (SMA) | Not For New Designs | Yes | 1 |
Engineering Selection Recommendations
Primary Substitutes (Active Status, Full Compliance):
RS1A-13-F (Diodes Incorporated) and ES1A-13-F (Diodes Incorporated) are direct electrical equivalents to CFRA101-G with identical voltage and current ratings. Both maintain Active product status and RoHS3 compliance with MSL 1. RS1A-13-F provides identical forward voltage and recovery time specifications. ES1A-13-F offers improved performance with lower forward voltage (0.92 V vs. 1.3 V) and faster recovery time (25 ns vs. 150 ns), remaining within all specified parameter limits.
ES1A-E3/5AT and ES1A-E3/61T (Vishay General Semiconductor - Diodes Division) are functionally equivalent with superior electrical characteristics: forward voltage of 0.92 V and reverse recovery time of 25 ns. Both are Active status with RoHS3 compliance and MSL 1. These parts are suitable for direct substitution where improved performance is acceptable.
ES1A-M3/61T (Vishay General Semiconductor - Diodes Division) maintains identical electrical specifications to ES1A-E3/61T with Active product status and full compliance certifications.
Secondary Substitutes (Active Status, Package Consideration):
EGF1A-E3/67A (Vishay General Semiconductor - Diodes Division) is rated for 50 V, 1 A with superior performance (1.0 V forward voltage, 50 ns recovery time). However, this part uses DO-214BA (GF1) package instead of DO-214AC (SMA). Physical footprint verification is required before selection.
EGF1A (Fairchild Semiconductor) meets electrical requirements with 50 V, 1 A rating and improved performance characteristics. Moisture sensitivity level is listed as Vendor Undefined, which differs from the specified MSL 1 requirement.
Not Recommended for New Designs:
ES1A-LTP (Micro Commercial Co) and GF1A (onsemi) carry "Not For New Designs" product status. GF1A additionally exhibits standard recovery characteristics (2 µs recovery time) rather than fast recovery, exceeding the specified 150 ns limit.
ES1A (YAGEO) lacks complete electrical specification data (recovery time and leakage current not provided), limiting full parameter verification.
Frequently Asked Questions (FAQ)
Q: Can RS1A-13-F replace CFRA101-G in existing designs?
A: Yes. RS1A-13-F is electrically and mechanically equivalent to CFRA101-G. Both are rated 50 V, 1 A with identical forward voltage (1.3 V @ 1 A) and recovery time (150 ns). Both use DO-214AC (SMA) package, maintain RoHS3 compliance, and carry MSL 1 rating. Direct substitution is supported.
Q: What is the advantage of ES1A-13-F over CFRA101-G?
A: ES1A-13-F maintains the same 50 V, 1 A rating and DO-214AC (SMA) package as CFRA101-G but offers improved electrical performance: forward voltage is reduced to 0.92 V (versus 1.3 V), and reverse recovery time is 25 ns (versus 150 ns). These improvements reduce power dissipation and switching losses while remaining fully compatible with the CFRA101-G application envelope.
Q: Why is EGF1A-E3/67A listed as a substitute if it uses a different package?
A: EGF1A-E3/67A uses DO-214BA (GF1) package instead of DO-214AC (SMA). While electrically superior (1.0 V forward voltage, 50 ns recovery time), physical footprint compatibility must be verified before selection. The part is included as a reference for applications where package migration is feasible.
Q: Can GF1A be used as a substitute?
A: GF1A is not recommended for new designs. Additionally, GF1A exhibits standard recovery characteristics (2 µs recovery time), which exceeds the CFRA101-G fast recovery specification (150 ns). This performance difference may affect circuit behavior in switching applications.
Q: What does "Not For New Designs" status mean?
A: "Not For New Designs" indicates the manufacturer has discontinued active development and recommends against use in new product designs. Existing inventory may be available, but long-term supply is not guaranteed. For new designs, select parts with Active product status.
Q: Are all substitute parts RoHS3 compliant?
A: All substitute parts listed carry RoHS3 compliance certification. Compliance status is a mandatory selection criterion for this reference.
Q: What is the significance of MSL 1 (Unlimited)?
A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All substitute parts maintain this specification, ensuring consistent supply chain handling requirements.
Q: Can ES1A-M3/61T be used interchangeably with ES1A-E3/61T?
A: Yes. ES1A-M3/61T and ES1A-E3/61T are electrically identical with the same 50 V, 1 A rating, 0.92 V forward voltage, and 25 ns recovery time. Both maintain Active status and full compliance certifications. Selection between these parts may be based on packaging format (Tape & Reel vs. Cut Tape & Digi-Reel) and inventory availability.
Q: What parameters determine substitution eligibility?
A: Substitution eligibility is determined by: (1) Voltage - DC Reverse (Vr) of 50 V, (2) Current - Average Rectified (Io) of 1 A, (3) Surface Mount mounting type, (4) DO-214AC or compatible SMA package, (5) RoHS3 compliance, (6) MSL 1 rating, (7) Forward voltage not exceeding 1.3 V @ 1 A, (8) Reverse recovery time not exceeding 150 ns, and (9) Reverse leakage current not exceeding 5 µA @ 50 V.
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