ES1BWF-HF Equivalent & Substitute Parts

Part Overview

The ES1BWF-HF is a general-purpose rectifier diode manufactured by Comchip Technology, rated for 100 V DC reverse voltage and 1 A average rectified current in a surface mount SOD-123F package. This component 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 required due to inventory constraints, supply chain considerations, or design flexibility needs.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1	V @ 1 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Capacitance @ Vr, F	15	pF @ 4V, 1MHz
Package / Case	SOD-123F	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the ES1BWF-HF with the US1001FL_R1_00001 is based on matching the following critical electrical and mechanical parameters:

Voltage Rating: Both parts are rated for 100 V DC reverse voltage maximum
Current Rating: Both parts are rated for 1 A average rectified current
Forward Voltage: Both parts specify 1 V maximum forward voltage at 1 A
Speed Classification: Both parts are classified as Fast Recovery with recovery time ≤ 500 ns for currents > 200 mA
Package Type: Both parts use SOD-123F surface mount package
Operating Temperature Range: Both parts operate across -55°C to 150°C junction temperature
Compliance: Both parts are RoHS3 compliant with MSL 1 rating

The US1001FL_R1_00001 demonstrates equivalent functional performance within the specified electrical envelope and maintains mechanical compatibility through identical package classification.

Parameter Comparison

Parameter	ES1BWF-HF (Comchip)	US1001FL_R1_00001 (Panjit)	Match Status
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	Equivalent
Current - Average Rectified (Io)	1 A	1 A	Equivalent
Voltage - Forward (Vf) (Max) @ If	1 V @ 1 A	1 V @ 1 A	Equivalent
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Equivalent
Reverse Recovery Time (trr)	35 ns	50 ns	Compatible
Current - Reverse Leakage @ Vr	5 µA @ 100 V	1 µA @ 100 V	Compatible
Capacitance @ Vr, F	15 pF @ 4V, 1MHz	9 pF @ 4V, 1MHz	Compatible
Package / Case	SOD-123F	SOD-123F	Equivalent
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent
Product Status	Active	Active	Equivalent

Engineering Selection Recommendations

Both the ES1BWF-HF and US1001FL_R1_00001 are Active product status components with full RoHS3 compliance and unlimited moisture sensitivity classification. The ES1BWF-HF is available with 980 pieces in stock, while the US1001FL_R1_00001 offers higher inventory availability at 3,900 pieces.

The US1001FL_R1_00001 demonstrates superior performance characteristics in reverse leakage current (1 µA versus 5 µA) and lower junction capacitance (9 pF versus 15 pF), while maintaining equivalent voltage and current ratings. The reverse recovery time of 50 ns on the substitute part remains within the Fast Recovery classification and is functionally compatible with the 35 ns specification of the primary part.

Selection between these parts should be based on inventory availability, supply chain lead times, and application-specific requirements for leakage current and capacitance performance.

Frequently Asked Questions (FAQ)

Q: Can the US1001FL_R1_00001 be used as a direct replacement for the ES1BWF-HF?

A: Yes. Both parts meet equivalent voltage (100 V), current (1 A), forward voltage (1 V @ 1 A), and package (SOD-123F) specifications. Both are Fast Recovery diodes with operating temperature ranges of -55°C to 150°C and RoHS3 compliance.

Q: What are the differences between these two parts?

A: The US1001FL_R1_00001 exhibits lower reverse leakage current (1 µA versus 5 µA at 100 V) and lower junction capacitance (9 pF versus 15 pF at 4 V, 1 MHz). The reverse recovery time is 50 ns compared to 35 ns on the ES1BWF-HF. These differences remain within compatible operating parameters for general-purpose rectification applications.

Q: Are the packages mechanically identical?

A: Both parts use the SOD-123F surface mount package. The ES1BWF-HF is supplied in SOD-123F packaging, while the US1001FL_R1_00001 is supplied as SOD-123FL. Both designations refer to the same physical SOD-123F package footprint and are mechanically compatible for PCB assembly.

Q: Do both parts have the same compliance certifications?

A: Yes. Both the ES1BWF-HF and US1001FL_R1_00001 are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level. Both are classified as Active product status.

Q: Which part should be selected for new designs?

A: Selection should be based on supply chain availability and application requirements. The US1001FL_R1_00001 offers higher inventory levels (3,900 pieces) and superior reverse leakage characteristics. The ES1BWF-HF may be preferred if faster reverse recovery time (35 ns) is a specific design requirement.

Q: Are there any temperature or voltage derating considerations?

A: Both parts operate across the identical junction temperature range of -55°C to 150°C and are rated for 100 V DC reverse voltage. No additional derating considerations apply between these two parts.

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