UG5J C0G Equivalent & Substitute Parts

Part Overview

The UG5J C0G is a general-purpose rectifier diode rated for 600 V DC reverse voltage and 5 A average rectified current in a Through Hole TO-220AC package. This component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent and substitute parts for ongoing design requirements and procurement needs. The part is manufactured by Taiwan Semiconductor Corporation and complies with ROHS3 and REACH standards.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io)	5 A
Voltage - Forward (Vf) (Max) @ If	3 V @ 5 A
Reverse Recovery Time (trr)	20 ns
Current - Reverse Leakage @ Vr	30 µA @ 600 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)
Mounting Type	Through Hole
Package / Case	TO-220-2
Supplier Device Package	TO-220AC
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the UG5J C0G are classified into two categories based on electrical and mechanical parameter alignment:

Direct Equivalent (Parametric Match): Parts that maintain identical electrical specifications across all critical parameters including voltage rating, current rating, forward voltage drop, reverse recovery time, and reverse leakage current. These parts are interchangeable at the circuit level with no design modifications required.

Similar Substitute (Uprated Capability): Parts that exceed the original specifications in current-carrying capacity while maintaining the same voltage rating and package form factor. These parts provide enhanced performance margins and are suitable for applications where increased current capacity is beneficial or required.

The substitution logic is based strictly on the following key parameters:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 600 V
Current - Average Rectified (Io): Must equal or exceed 5 A
Package / Case: Must be TO-220-2
Mounting Type: Must be Through Hole
Speed Classification: Must be Fast Recovery ≤ 500ns, > 200mA (Io)

Parameter Comparison

Parameter	UG5J C0G (Main)	UG5J (Direct)	UG5JHC0G (Parametric)	BYC8-600P,127 (Similar)
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	WeEn Semiconductors
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	5 A	5 A	5 A	8 A
Voltage - Forward (Vf) (Max) @ If	3 V @ 5 A	3 V @ 5 A	3 V @ 5 A	1.9 V @ 8 A
Reverse Recovery Time (trr)	20 ns	20 ns	20 ns	18 ns
Current - Reverse Leakage @ Vr	30 µA @ 600 V	30 µA @ 600 V	30 µA @ 600 V	20 µA @ 600 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-2	TO-220-2	TO-220-2	TO-220-2
Supplier Device Package	TO-220AC	TO-220AC	TO-220AC	TO-220AC
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	175°C (Max)
Product Status	Discontinued at DiGi Electronics	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

UG5J (Direct Equivalent): This part is the primary substitute for the discontinued UG5J C0G. It maintains identical electrical and thermal specifications while offering active product status. The part is manufactured by the same supplier (Taiwan Semiconductor Corporation) and is available in higher inventory quantities (1956 Pcs). It is packaged in Tube format and complies with all relevant standards (ROHS3, REACH). This part is suitable for direct replacement in all applications where the original UG5J C0G was specified.

UG5JHC0G (Parametric Equivalent with Automotive Qualification): This part provides identical electrical specifications to the main part with the addition of automotive-grade qualification (AEC-Q101). It is manufactured by Taiwan Semiconductor Corporation and maintains the same voltage, current, and thermal ratings. This part is appropriate for applications requiring automotive-grade components or where enhanced reliability certification is mandated. Active product status and ROHS3 compliance are confirmed.

BYC8-600P,127 (Similar Substitute with Uprated Current): This part is manufactured by WeEn Semiconductors and provides an 8 A average rectified current rating compared to the 5 A rating of the original part. The voltage rating (600 V) and package form factor (TO-220AC) remain identical. The forward voltage drop is lower (1.9 V @ 8 A versus 3 V @ 5 A), and reverse recovery time is slightly faster (18 ns versus 20 ns). The maximum junction temperature is higher (175°C versus 150°C). This part is suitable for applications where increased current capacity provides design margin or where the lower forward voltage drop is beneficial. Active product status and ROHS3 compliance are confirmed.

Frequently Asked Questions (FAQ)

Q: Can the UG5J be used as a direct replacement for the discontinued UG5J C0G?

A: Yes. The UG5J maintains identical electrical specifications including 600 V reverse voltage rating, 5 A average rectified current, 3 V forward voltage drop at 5 A, 20 ns reverse recovery time, and 30 µA reverse leakage current at 600 V. Both parts use the TO-220AC package and TO-220-2 case. The UG5J is currently in active production status with higher inventory availability.

Q: What is the difference between the UG5J and UG5JHC0G?

A: Both parts have identical electrical specifications. The UG5JHC0G carries automotive-grade qualification (AEC-Q101) and is designated as an automotive component. Selection between these parts depends on whether automotive-grade certification is required for the application.

Q: Can the BYC8-600P,127 be used in place of the UG5J C0G?

A: The BYC8-600P,127 is a similar substitute with uprated current capacity (8 A versus 5 A). It maintains the same 600 V voltage rating and TO-220AC package. The lower forward voltage drop (1.9 V @ 8 A) and faster reverse recovery time (18 ns) represent performance improvements. This part is suitable for applications where the increased current rating provides design margin. However, the manufacturer differs (WeEn Semiconductors versus Taiwan Semiconductor Corporation), and the maximum junction temperature is higher (175°C versus 150°C).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (UG5J, UG5JHC0G, and BYC8-600P,127) are ROHS3 compliant. All parts also have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions.

Q: What is the significance of the TO-220AC package designation?

A: The TO-220AC package is a Through Hole surface configuration with two leads and a mounting tab. All substitute parts maintain this identical package form factor, ensuring mechanical compatibility with existing PCB layouts and thermal management solutions.

Q: Does the higher maximum junction temperature of the BYC8-600P,127 affect compatibility?

A: The BYC8-600P,127 has a maximum junction temperature of 175°C compared to 150°C for the original part. This represents an extended thermal rating and does not create compatibility issues. Applications designed for the original 150°C maximum will operate within the thermal envelope of the substitute part.

Q: What inventory status should be considered when selecting a substitute?

A: The UG5J has the highest inventory availability (1956 Pcs), followed by UG5JHC0G (1102 Pcs) and BYC8-600P,127 (4426 Pcs). Inventory levels should be evaluated against procurement timelines and supply chain requirements.

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