HER205G-AP Equivalent & Substitute Parts

Part Overview

The HER205G-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 400 V DC reverse voltage and 2 A average rectified current in a DO-15 through-hole package. This component is classified as Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified when applications require alternative sourcing, inventory availability, or specific performance characteristics within the same electrical and mechanical specifications.

Substiute Parts

HER205G-AP

Micro Commercial CoIn Stock: 1150HER205G-AP Datasheet

Current PartRFQ

EGP20G

Fairchild SemiconductorIn Stock: 36706EGP20G Datasheet

UpgradeRFQ

SF26G A0G

Taiwan Semiconductor CorporationIn Stock: 897SF26G A0G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HER205G-AP are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): 400 V
• Current - Average Rectified (Io): 2 A
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Mounting Type: Through Hole
• Package / Case: DO-204AC, DO-15, Axial

Substitute Classification:

Upgrade Equivalent: EGP20G (Fairchild Semiconductor) meets all primary electrical specifications with identical voltage and current ratings, fast recovery speed classification, and through-hole mounting. Forward voltage is 1.25 V @ 2 A, which is lower than the main part, indicating improved efficiency characteristics.

Parametric Equivalent: SF26G A0G (Taiwan Semiconductor Corporation) meets all primary electrical specifications with identical voltage and current ratings, fast recovery speed classification, and through-hole mounting. This part is supplied in DO-204AC (DO-15) package format and demonstrates improved reverse recovery time of 35 ns compared to the main part's 50 ns.

Parameter Comparison

Engineering Selection Recommendations

HER205G-AP (Primary Part): Select this part when Micro Commercial Co sourcing is required or preferred. The component is Active status, ROHS3 compliant, and REACH unaffected. Moisture sensitivity level is 1 (Unlimited), indicating no moisture-related handling restrictions.

EGP20G (Upgrade Equivalent): Select this Fairchild Semiconductor part when lower forward voltage drop is beneficial for circuit efficiency. The part is Active status and meets all electrical specifications. Operating temperature range extends to -65°C, providing wider low-temperature capability. High inventory availability (36,600 pcs) supports immediate sourcing.

SF26G A0G (Parametric Equivalent): Select this Taiwan Semiconductor Corporation part when improved reverse recovery time (35 ns versus 50 ns) is required for circuit performance optimization. The component is Active status, ROHS3 compliant, and REACH unaffected. Lower capacitance (20 pF versus 50 pF) may provide benefits in high-frequency switching applications. Supplied in Cut Tape (CT) packaging.

All three parts are classified as Standard technology, Fast Recovery diodes with identical voltage and current ratings, and are suitable for direct substitution in through-hole DO-15 applications.

Frequently Asked Questions (FAQ)

Q: Can EGP20G replace HER205G-AP in all applications?

A: EGP20G meets all primary electrical specifications (400 V, 2 A, fast recovery) and through-hole mounting requirements. The lower forward voltage (1.25 V versus 1.3 V) represents an improvement. Extended operating temperature range (-65°C to 150°C) provides additional capability. Direct substitution is supported for applications within the specified electrical parameters.

Q: What is the difference between EGP20G and SF26G A0G?

A: Both parts meet the 400 V, 2 A specifications and fast recovery classification. EGP20G has 50 ns reverse recovery time and 45 pF capacitance. SF26G A0G has faster reverse recovery time (35 ns) and lower capacitance (20 pF). SF26G A0G is supplied in Cut Tape packaging, while EGP20G packaging is not specified. Selection depends on whether improved switching speed or packaging format is prioritized.

Q: Are all three parts ROHS3 compliant?

A: HER205G-AP and SF26G A0G are explicitly ROHS3 compliant. EGP20G RoHS status is not specified in the provided data. Compliance verification with the component supplier is required if ROHS3 certification is mandatory for the application.

Q: What is the significance of reverse recovery time differences?

A: HER205G-AP and EGP20G both have 50 ns reverse recovery time. SF26G A0G has 35 ns reverse recovery time. Faster reverse recovery reduces switching losses and improves efficiency in high-frequency rectification circuits. Selection of SF26G A0G is appropriate when minimizing reverse recovery losses is a design requirement.

Q: Can these parts be used interchangeably in PCB designs?

A: All three parts use DO-15 through-hole axial packaging and are mechanically compatible. Pin configuration and lead spacing are identical. Direct PCB substitution is supported without layout modifications.

Q: What packaging formats are available?

A: HER205G-AP is supplied in Tape & Box (TB) packaging. EGP20G packaging format is not specified. SF26G A0G is supplied in Cut Tape (CT) packaging. Packaging selection depends on assembly process requirements and inventory management preferences.

Q: Are there temperature range considerations for part selection?

A: HER205G-AP and SF26G A0G operate from -55°C to 150°C. EGP20G operates from -65°C to 150°C, providing extended low-temperature capability. Selection of EGP20G is appropriate for applications requiring operation below -55°C.