UG12J C0G Equivalent & Substitute Parts

Part Overview

The UG12J C0G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 600 V DC reverse voltage and 12 A average rectified current in a TO-220AC through-hole package. This component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. Equivalent parts maintain identical electrical and mechanical specifications while offering active product status and improved availability.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io)	12 A
Voltage - Forward (Vf) (Max) @ If	2 V @ 12 A
Reverse Recovery Time (trr)	20 ns
Current - Reverse Leakage @ Vr	5 µA @ 600 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case	TO-220-2
Mounting Type	Through Hole
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the UG12J C0G is determined by strict equivalence across all critical electrical parameters: reverse voltage rating (600 V), average rectified current (12 A), forward voltage drop (2 V @ 12 A), reverse recovery time (20 ns), and reverse leakage current (5 µA @ 600 V). The TO-220-2 package and through-hole mounting type are mechanical requirements that must be maintained. All substitute parts must comply with ROHS3 and maintain the same operating temperature range (-55°C ~ 150°C). Substitutes are grouped based on product status and packaging configuration while maintaining complete parametric equivalence.

Parameter Comparison

Parameter	UG12J C0G (Main Part)	UG12J (Direct Substitute)	UG12JHC0G (Parametric Equivalent)
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Category	Diodes, Rectifiers	Diodes, Rectifiers	Diodes, Rectifiers
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V
Current - Average Rectified (Io)	12 A	12 A	12 A
Voltage - Forward (Vf) (Max) @ If	2 V @ 12 A	2 V @ 12 A	2 V @ 12 A
Reverse Recovery Time (trr)	20 ns	20 ns	20 ns
Current - Reverse Leakage @ Vr	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case	TO-220-2	TO-220-2	TO-220-2
Mounting Type	Through Hole	Through Hole	Through Hole
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Product Status	Discontinued at DiGi Electronics	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Grade	Standard	Standard	Automotive
Qualification	-	-	AEC-Q101

Engineering Selection Recommendations

UG12J (Direct Substitute): This part is the primary substitute for the discontinued UG12J C0G. It maintains identical electrical specifications and TO-220-2 package configuration. The UG12J carries active product status with higher inventory availability (1939 Pcs) compared to the main part. Packaging is supplied in tube format. This part is suitable for direct replacement in standard industrial applications requiring 600 V, 12 A rectification.

UG12JHC0G (Parametric Equivalent with Automotive Qualification): This part provides complete parametric equivalence to the main part while adding automotive-grade qualification (AEC-Q101). The UG12JHC0G is designated for applications requiring automotive-level reliability and traceability. It maintains the same electrical performance and TO-220-2 package but is qualified to automotive standards. Selection of this part is appropriate for automotive or mission-critical applications where AEC-Q101 compliance is specified.

Both substitute parts are ROHS3 compliant and maintain the full operating temperature range of -55°C to 150°C. Selection between UG12J and UG12JHC0G depends on application requirements: standard industrial use favors UG12J, while automotive or high-reliability applications require UG12JHC0G.

Frequently Asked Questions (FAQ)

Q: Can UG12J be used as a direct replacement for UG12J C0G?

A: Yes. The UG12J provides complete electrical and mechanical equivalence. All critical parameters—600 V reverse voltage, 12 A average rectified current, 2 V forward voltage drop, 20 ns reverse recovery time, and 5 µA reverse leakage current—are identical. The TO-220-2 package and through-hole mounting are unchanged. The primary difference is product status: UG12J is active with improved availability.

Q: What is the difference between UG12J and UG12JHC0G?

A: Both parts are parametrically identical in electrical specifications and package configuration. The UG12JHC0G carries automotive-grade qualification (AEC-Q101) and is designated as an automotive component, whereas UG12J is standard-grade. Selection depends on application requirements: use UG12J for standard industrial applications and UG12JHC0G for automotive or high-reliability applications requiring AEC-Q101 compliance.

Q: Are all substitute parts in the same package?

A: Yes. All parts—UG12J C0G, UG12J, and UG12JHC0G—use the TO-220-2 package with through-hole mounting. PCB layout and thermal management considerations remain identical across all three parts.

Q: Do the substitute parts meet the same compliance standards?

A: All three parts are ROHS3 compliant and REACH unaffected. The UG12JHC0G additionally carries AEC-Q101 automotive qualification. All parts maintain the same operating temperature range of -55°C to 150°C.

Q: What is the reverse recovery time specification, and why is it important?

A: The reverse recovery time (trr) is 20 ns for all parts. This parameter defines the time required for the diode to switch from forward conduction to reverse blocking. The 20 ns specification classifies these as fast-recovery diodes, suitable for high-frequency switching applications and power supply circuits.

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

A: Yes, within the constraints of application requirements. UG12J provides direct substitution for standard applications. UG12JHC0G provides substitution for applications requiring automotive qualification. No circuit redesign is required; the parts are pin-compatible and electrically equivalent.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message