UG1C-E3/73 Equivalent & Substitute Parts

Part Overview

The UG1C-E3/73 is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This through-hole component operates at 150 V DC reverse voltage with 1 A average rectified current capacity and features fast recovery characteristics with a 25 ns reverse recovery time. The device is housed in a DO-204AL (DO-41) axial package and is classified as an active product with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required for design flexibility, inventory management, or supply chain continuity.

Substiute Parts

UG1C-E3/73

Vishay General Semiconductor - Diodes DivisionIn Stock: 1113UG1C-E3/73 Datasheet

Current PartRFQ

EGP10C

Fairchild SemiconductorIn Stock: 35899EGP10C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UG1C-E3/73 are identified based on strict electrical and mechanical parameter equivalence. The primary substitution criteria are:

Electrical Parameters (Must Match):

• Voltage - DC Reverse (Vr) (Max): 150 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 950 mV @ 1 A
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 5 µA @ 150 V

Mechanical Parameters (Must Match):

• Mounting Type: Through Hole
• Package / Case: DO-204AL, DO-41, Axial

Compliance Parameters:

• Product Status: Active
• Technology: Standard

The EGP10C from Fairchild Semiconductor meets all core electrical specifications and mechanical compatibility requirements. Reverse recovery time (trr) of 50 ns in the EGP10C is longer than the 25 ns specification of the UG1C-E3/73 but remains within the fast recovery classification. Operating temperature range extends to -65°C (versus -55°C minimum for the main part), providing broader thermal coverage.

Parameter Comparison

Engineering Selection Recommendations

UG1C-E3/73 (Vishay General Semiconductor - Diodes Division):

• Primary selection for applications requiring the specified 25 ns reverse recovery time
• ROHS3 compliant with MSL 1 (unlimited moisture sensitivity)
• Current inventory: 1008 pieces
• Suitable for designs with established Vishay component qualification

EGP10C (Fairchild Semiconductor):

• Qualified substitute with identical core electrical specifications
• Extended operating temperature range (-65°C minimum versus -55°C)
• Reverse recovery time of 50 ns remains within fast recovery classification
• Current inventory: 35827 pieces
• Suitable for applications where extended low-temperature operation or supply availability is prioritized
• Both parts carry EAR99 ECCN classification and identical HTSUS code (8541.10.0080)

Selection between these parts depends on specific application requirements regarding reverse recovery time performance, thermal operating range, and component availability.

Frequently Asked Questions (FAQ)

Q: Can the EGP10C directly replace the UG1C-E3/73 in existing designs?

A: Yes. Both diodes share identical voltage ratings (150 V), current ratings (1 A), forward voltage drop (950 mV @ 1 A), and package configuration (DO-204AL through-hole axial). The EGP10C operates across a wider temperature range (-65°C to 150°C versus -55°C to 150°C) and has a reverse recovery time of 50 ns compared to 25 ns in the UG1C-E3/73, both within fast recovery specifications.

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

A: The UG1C-E3/73 specifies 25 ns reverse recovery time while the EGP10C specifies 50 ns. Both devices meet the fast recovery classification (≤ 500ns for currents > 200mA). The shorter recovery time in the UG1C-E3/73 may provide marginal advantages in high-frequency switching applications, but both are functionally equivalent for standard rectification circuits.

Q: Are there packaging differences between these parts?

A: No. Both the UG1C-E3/73 and EGP10C use identical DO-204AL (DO-41) axial through-hole packaging. Physical dimensions, lead spacing, and PCB mounting are identical, enabling direct mechanical substitution.

Q: What compliance certifications apply to both parts?

A: Both parts carry EAR99 ECCN classification and share the same HTSUS code (8541.10.0080). The UG1C-E3/73 is explicitly ROHS3 compliant with MSL 1 rating. Compliance documentation for the EGP10C should be verified through the supplier for specific application requirements.

Q: Which part should be selected for low-temperature applications?

A: The EGP10C supports operation down to -65°C junction temperature, compared to -55°C for the UG1C-E3/73. For applications requiring extended low-temperature performance, the EGP10C provides broader thermal coverage.

Q: Are there inventory considerations for part selection?

A: Current inventory levels differ significantly: UG1C-E3/73 has 1008 pieces available, while EGP10C has 35827 pieces in stock. For applications with extended lead times or high-volume requirements, the EGP10C may offer supply chain advantages.