CFRA102-G Equivalent & Substitute Parts Reference

Part Overview

The CFRA102-G is a general-purpose rectifier diode manufactured by Comchip Technology, rated for 100V DC reverse voltage and 1A average rectified current in a surface mount DO-214AC (SMA) package. This component is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified based on matching electrical specifications and package compatibility to support procurement flexibility, inventory management, and supply chain continuity.

Key Parameters

Parameter	CFRA102-G Value	Substitution Criteria
Voltage - DC Reverse (Vr) (Max)	100 V	Must equal 100 V
Current - Average Rectified (Io)	1 A	Must equal 1 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1 A	Must not exceed 1.3 V @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Must meet Fast Recovery specification
Reverse Recovery Time (trr)	150 ns	Must not exceed 150 ns
Current - Reverse Leakage @ Vr	5 µA @ 100 V	Must not exceed 5 µA @ 100 V
Mounting Type	Surface Mount	Must be Surface Mount
Package / Case	DO-214AC, SMA	Must be DO-214AC (SMA) or compatible
Operating Temperature - Junction	150°C (Max)	Must support minimum 150°C
RoHS Status	ROHS3 Compliant	Must be ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts are grouped based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr): 100 V
Current - Average Rectified (Io): 1 A
Mounting Type: Surface Mount
Package / Case: DO-214AC (SMA) or DO-214BA (GF1)
RoHS Status: ROHS3 Compliant

Performance Parameters (Must Meet or Exceed):

Voltage - Forward (Vf) @ 1 A: ≤ 1.3 V
Reverse Recovery Time (trr): ≤ 150 ns
Current - Reverse Leakage @ 100 V: ≤ 5 µA
Operating Temperature - Junction: ≥ 150°C

Substitute parts are classified into two categories:

Category 1: Direct Electrical Equivalents – Parts meeting all mandatory parameters with identical or superior performance characteristics.

Category 2: Functional Equivalents – Parts meeting all mandatory parameters with minor performance variations within acceptable engineering tolerances.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ 1A	trr (ns)	Ir @ 100V	Package	Temp Junction (Max)	Product Status	RoHS3
CFRA102-G	Comchip Technology	100 V	1 A	1.3 V	150 ns	5 µA	DO-214AC (SMA)	150°C	Active	Yes
RGF1B	Fairchild Semiconductor	100 V	1 A	1.3 V	150 ns	5 µA	DO-214AC (SMA)	175°C	Active	Not specified
RS1B-13-F	Diodes Incorporated	100 V	1 A	1.3 V	150 ns	5 µA	DO-214AC (SMA)	150°C	Active	Yes
EGF1B	Fairchild Semiconductor	100 V	1 A	1.0 V	50 ns	10 µA	DO-214AC (SMA)	175°C	Active	Not specified
EGF1B-E3/5CA	Vishay General Semiconductor	100 V	1 A	1.0 V	50 ns	5 µA	DO-214BA (GF1)	175°C	Active	Yes
EGF1B-E3/67A	Vishay General Semiconductor	100 V	1 A	1.0 V	50 ns	5 µA	DO-214BA (GF1)	175°C	Not For New Designs	Yes
ES1B	YAGEO	100 V	1 A	0.95 V	Not specified	Not specified	DO-214AC (SMA)	Not specified	Active	Yes
ES1B-13-F	Diodes Incorporated	100 V	1 A	920 mV	25 ns	5 µA	DO-214AC (SMA)	150°C	Active	Yes
ES1B-E3/61T	Vishay General Semiconductor	100 V	1 A	920 mV	25 ns	5 µA	DO-214AC (SMA)	150°C	Active	Yes
ES1B-LTP	Micro Commercial Co	100 V	1 A	950 mV	35 ns	5 µA	DO-214AC (SMA)	175°C	Not For New Designs	Yes
ESH1B-E3/61T	Vishay General Semiconductor	100 V	1 A	900 mV	25 ns	1 µA	DO-214AC (SMA)	175°C	Active	Yes

Engineering Selection Recommendations

Primary Substitutes (Active Status, RoHS3 Compliant):

RS1B-13-F (Diodes Incorporated) and ES1B-E3/61T (Vishay General Semiconductor) are recommended as primary substitutes. Both parts maintain identical voltage and current ratings, matching package specifications, and active product status. RS1B-13-F provides equivalent performance with tape and reel packaging. ES1B-E3/61T offers improved forward voltage characteristics (920 mV vs. 1.3 V) and faster reverse recovery time (25 ns vs. 150 ns), resulting in lower power dissipation and improved switching performance.

Secondary Substitutes (Active Status, Performance Enhanced):

ESH1B-E3/61T (Vishay General Semiconductor) provides superior reverse leakage characteristics (1 µA vs. 5 µA) with improved forward voltage (900 mV) and faster recovery time (25 ns). This part is suitable for applications requiring lower leakage current and improved thermal efficiency.

Conditional Substitutes (Active Status, Package Variation):

EGF1B-E3/5CA (Vishay General Semiconductor) operates at identical electrical specifications but uses DO-214BA (GF1) package instead of DO-214AC (SMA). This part is suitable only if PCB layout and footprint accommodate the alternative package geometry.

Not Recommended for New Designs:

EGF1B-E3/67A and ES1B-LTP carry "Not For New Designs" product status and should not be selected for new circuit implementations.

Frequently Asked Questions (FAQ)

Q1: Can RGF1B replace CFRA102-G in all applications?

RGF1B matches all electrical specifications and package requirements. However, RoHS3 compliance status is not specified in the provided data. Verify RoHS3 certification with the supplier before selection if regulatory compliance is required.

Q2: What is the difference between DO-214AC (SMA) and DO-214BA (GF1) packages?

Both packages are surface mount rectifier packages with identical electrical performance. DO-214AC (SMA) and DO-214BA (GF1) differ in physical dimensions and PCB footprint. EGF1B-E3/5CA uses DO-214BA (GF1) package. Verify PCB layout compatibility before substitution.

Q3: Why do some substitutes have lower forward voltage (Vf)?

Lower forward voltage indicates improved efficiency and reduced power dissipation. ES1B-E3/61T (920 mV) and ESH1B-E3/61T (900 mV) provide better thermal performance compared to CFRA102-G (1.3 V). This is advantageous in high-current or thermally constrained applications.

Q4: What does reverse recovery time (trr) indicate?

Reverse recovery time measures the speed at which the diode transitions from conducting to blocking state. Faster recovery (25 ns in ES1B-E3/61T vs. 150 ns in CFRA102-G) reduces switching losses and improves efficiency in switching power supplies and high-frequency rectification circuits.

Q5: Is ES1B-LTP suitable for new designs?

No. ES1B-LTP carries "Not For New Designs" status. This designation indicates the manufacturer is discontinuing or has discontinued active support. Use ES1B-E3/61T or ES1B-13-F as active alternatives.

Q6: What does reverse leakage current (Ir) represent?

Reverse leakage current is the small current flowing through the diode when reverse biased. Lower values indicate better diode quality and lower standby power consumption. ESH1B-E3/61T (1 µA) provides superior leakage characteristics compared to CFRA102-G (5 µA).

Q7: Can I use EGF1B-E3/67A as a substitute?

EGF1B-E3/67A meets all electrical specifications but carries "Not For New Designs" status. Use EGF1B-E3/5CA instead, which is the active equivalent from the same manufacturer.

Q8: Which substitute offers the best overall performance?

ESH1B-E3/61T provides the best performance combination: lowest forward voltage (900 mV), fastest recovery time (25 ns), lowest reverse leakage (1 µA), and active product status with RoHS3 compliance. Select this part for applications prioritizing efficiency and reliability.

Q9: Are all substitutes available in tape and reel packaging?

No. Packaging varies by part number. RS1B-13-F, ES1B-13-F, ES1B-E3/61T, ES1B-LTP, and ESH1B-E3/61T are available in tape and reel (TR) or cut tape (CT) packaging. RGF1B is supplied in bulk packaging. Verify packaging availability with your supplier.

Q10: What compliance certifications apply to all recommended substitutes?

All recommended active substitutes (RS1B-13-F, ES1B-E3/61T, ESH1B-E3/61T, EGF1B-E3/5CA) are RoHS3 compliant and REACH unaffected. ECCN classification is EAR99 for all parts. HTSUS code is 8541.10.0080 for all parts.

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