UGF5J C0G Equivalent & Substitute Parts

Part Overview

The UGF5J 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-220-2 package configuration. This component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent and substitute parts for ongoing design requirements and procurement needs. Active alternatives with identical or enhanced electrical characteristics are available from multiple manufacturers to support continued system deployment.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	5	A
Voltage - Forward (Vf) (Max) @ If	3 V @ 5 A	V @ A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	25	ns
Current - Reverse Leakage @ Vr	30 µA @ 600 V	µA @ V
Mounting Type	Through Hole	—
Package / Case	TO-220-2 Full Pack	—
Operating Temperature - Junction	-55°C ~ 150°C	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the UGF5J C0G is determined by the following critical parameters:

Mandatory Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 600 V minimum
Mounting Type: Through Hole
Package / Case: TO-220-2 Full Pack or compatible variant
Technology: Standard rectifier diode classification

Allowable Variation Criteria:

Current - Average Rectified (Io): Equal to or greater than 5 A
Voltage - Forward (Vf) (Max): Equal to or lower than 3 V at rated current
Reverse Recovery Time (trr): Equal to or lower than 25 ns
Current - Reverse Leakage @ Vr: Equal to or lower than 30 µA @ 600 V
Operating Temperature - Junction: Range must encompass -55°C to 150°C or higher

Compliance Requirements:

RoHS3 Compliant status required
Moisture Sensitivity Level (MSL): 1 (Unlimited) preferred

Substitute parts are grouped into two categories: Direct Equivalents (identical electrical specifications) and Similar Parts (enhanced current ratings or improved performance characteristics within the same voltage class and package family).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	trr [ns]	Ir @ Vr [µA]	Tj (Max) [°C]	Package	Product Status
UGF5J C0G	Taiwan Semiconductor Corporation	600	5	3	25	30 @ 600 V	150	TO-220-2 Full Pack	Discontinued
UGF5J	Taiwan Semiconductor Corporation	600	5	3	25	30 @ 600 V	150	TO-220-2 Full Pack	Active
UGF5JHC0G	Taiwan Semiconductor Corporation	600	5	3	25	30 @ 600 V	150	TO-220-2 Full Pack	Active
BYC8X-600P,127	WeEn Semiconductors	600	8	1.9	18	20 @ 600 V	175	TO-220-2 Full Pack, Isolated Tab	Active
BYC20X-600PQ	WeEn Semiconductors	600	20	2.5	35	10 @ 600 V	175	TO-220-2 Full Pack, Isolated Tab	Active
MURF1560G	onsemi	600	15	1.5	60	10 @ 600 V	175	TO-220-2 Full Pack	Active
RFNL10TJ6SGC9	Rohm Semiconductor	600	10	1.3	150	10 @ 600 V	150	TO-220-2	Active
VS-ETL1506FP-M3	Vishay General Semiconductor - Diodes Division	600	15	1.07	210	15 @ 600 V	175	TO-220-2 Full Pack	Active

Engineering Selection Recommendations

Direct Equivalent Selection:

The UGF5J (Tube packaging) and UGF5JHC0G (Automotive grade, AEC-Q101 qualified) are direct electrical equivalents to the discontinued UGF5J C0G. Both parts are manufactured by Taiwan Semiconductor Corporation and maintain identical electrical specifications across all critical parameters. The UGF5J is recommended for standard applications requiring immediate replacement. The UGF5JHC0G is specified for automotive and mission-critical applications where AEC-Q101 qualification is required.

Higher Current Rating Alternatives:

For applications where increased current capacity provides design margin or system redundancy, the BYC8X-600P,127 (8 A), RFNL10TJ6SGC9 (10 A), MURF1560G (15 A), and BYC20X-600PQ (20 A) are suitable substitutes. All maintain 600 V reverse voltage rating and through-hole TO-220-2 package configuration. These parts exhibit improved forward voltage characteristics and lower reverse leakage current compared to the original specification.

Compliance Verification:

All listed substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited) classification. Operating temperature ranges for WeEn Semiconductors, onsemi, and Vishay parts extend to 175°C maximum junction temperature, providing enhanced thermal margin compared to the 150°C maximum of the original part.

Package Compatibility:

The BYC8X-600P,127 and BYC20X-600PQ feature isolated tab configurations in the TO-220-2 Full Pack format. Verify PCB layout and thermal management design accommodate isolated tab geometry if selecting these alternatives.

Frequently Asked Questions (FAQ)

Q: Can UGF5J be used as a direct replacement for UGF5J C0G?

A: Yes. The UGF5J is a direct electrical equivalent with identical voltage, current, and thermal specifications. Both are manufactured by Taiwan Semiconductor Corporation and share the same base product number. The primary difference is product status: UGF5J C0G is discontinued while UGF5J remains active.

Q: What is the difference between UGF5J and UGF5JHC0G?

A: Both parts are electrically identical with 600 V, 5 A, and 150°C maximum junction temperature ratings. The UGF5JHC0G carries AEC-Q101 automotive qualification and is designated for automotive and high-reliability applications. Standard applications may use either part.

Q: Can I use a higher current rated diode such as BYC8X-600P,127 or MURF1560G?

A: Yes. Higher current rated diodes are suitable substitutes provided the 600 V reverse voltage rating and through-hole TO-220-2 package are maintained. These parts exhibit superior forward voltage characteristics and lower reverse leakage. Verify that circuit design does not depend on the specific 5 A current rating of the original part.

Q: What is the significance of the isolated tab feature on BYC8X-600P,127 and BYC20X-600PQ?

A: The isolated tab configuration electrically isolates the mounting tab from the diode cathode, enabling direct mounting to a common heat sink without electrical isolation hardware. Verify PCB layout and thermal design accommodate this feature. Standard non-isolated tab packages are available from other manufacturers if isolation is not required.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance status. Moisture Sensitivity Level 1 (Unlimited) is specified for all parts, indicating no moisture sensitivity restrictions during storage or handling.

Q: What is the impact of different reverse recovery times (trr) on circuit performance?

A: Reverse recovery time affects switching speed and electromagnetic interference characteristics. The original UGF5J C0G specifies 25 ns trr. Substitute parts range from 18 ns (BYC8X-600P,127) to 210 ns (VS-ETL1506FP-M3). Lower trr values reduce switching losses and EMI in high-frequency applications. Higher trr values may require circuit design verification in switching power supply applications.

Q: Can I substitute a 600 V diode rated for lower current, such as a 3 A part?

A: No. Substitute parts must maintain equal or greater current rating than the original 5 A specification. Using a lower current rated diode creates thermal stress and reduces component reliability.

Q: What packaging options are available for the UGF5J equivalent?

A: The UGF5J is available in Tube packaging. The UGF5JHC0G packaging is not specified in the provided data. All substitute parts listed are available in Tube or Bulk packaging configurations. Verify packaging availability with supplier documentation before procurement.

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