UG06D/54 Equivalent & Substitute Parts

Part Overview

The UG06D/54 is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 200V DC reverse voltage and 600mA average rectified current. This through-hole axial component operates across a junction temperature range of -55°C to 150°C and features fast recovery characteristics with a reverse recovery time of 25 nanoseconds. The part is currently active in production with 708 units in stock. Substitute parts are identified when equivalent electrical performance is required, inventory availability is constrained, or design flexibility is needed within the specified parameter envelope.

Substiute Parts

UG06D/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 771UG06D/54 Datasheet

Current PartRFQ

MUR120G

onsemiIn Stock: 46248MUR120G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UG06D/54 is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 200V minimum
• Current - Average Rectified (Io): 600mA minimum
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA
• Mounting Type: Through Hole
• Package Type: Axial configuration

Acceptable Variation Ranges:

• Forward Voltage (Vf): Substitute may be lower or equal to 950 mV at rated current
• Reverse Recovery Time (trr): Substitute may be equal to or faster than 25 ns
• Reverse Leakage Current: Substitute may be equal to or lower than 5 µA @ 200V
• Operating Temperature Range: Substitute must encompass or exceed -55°C to 150°C

The MUR120G from onsemi meets all mandatory equivalence criteria and operates within acceptable variation ranges, qualifying as a direct substitute for the UG06D/54 in applications requiring 200V, 600mA+ rectification with fast recovery characteristics.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: UG06D/54 The UG06D/54 remains the specified component for applications where the original design parameters are locked and inventory is available. The part is active in production with 708 units in stock.

Substitute Selection: MUR120G The MUR120G qualifies as a direct substitute based on electrical parameter equivalence. The substitute provides the following advantages:

• Higher current rating (1A vs. 600mA) permits operation with additional design margin
• Lower forward voltage drop (875 mV vs. 950 mV) reduces power dissipation
• Lower reverse leakage current (2 µA vs. 5 µA) improves circuit performance
• Extended operating temperature range (-65°C to 175°C vs. -55°C to 150°C) supports broader environmental applications
• ROHS3 compliance status versus non-compliant status of the original part
• Significantly higher inventory availability (46,200 units vs. 708 units)

The MUR120G is suitable for direct substitution in through-hole axial mounting applications requiring 200V rectification with fast recovery characteristics. Axial package geometry is compatible with MPG06 footprints in standard through-hole PCB designs.

Frequently Asked Questions (FAQ)

Q: Can the MUR120G replace the UG06D/54 in my circuit?

A: Yes. The MUR120G meets all mandatory electrical equivalence criteria: 200V reverse voltage rating, 600mA+ average rectified current capability, fast recovery speed classification, and through-hole axial mounting. The substitute performs equal to or better than the original part across all measured parameters.

Q: What is the difference in forward voltage drop between these parts?

A: The UG06D/54 has a maximum forward voltage of 950 mV at 600 mA, while the MUR120G has a maximum forward voltage of 875 mV at 1 A. The lower forward voltage of the substitute reduces power dissipation in the diode, resulting in lower heat generation and improved circuit efficiency.

Q: Are the packages physically compatible?

A: Both parts use axial through-hole mounting. The UG06D/54 uses the MPG06 package, and the MUR120G uses the DO-204AL/DO-41 package. Both are standard axial configurations compatible with conventional through-hole PCB layouts. Physical lead spacing and diameter should be verified against your specific PCB design.

Q: What is the reverse recovery time difference?

A: The UG06D/54 has a reverse recovery time of 25 nanoseconds, while the MUR120G has a reverse recovery time of 35 nanoseconds. Both are classified as fast recovery diodes with recovery times well below the 500 nanosecond threshold. The 10-nanosecond difference is negligible for most general-purpose rectification applications.

Q: Does the MUR120G have better temperature performance?

A: Yes. The MUR120G operates across -65°C to 175°C, compared to the UG06D/54 range of -55°C to 150°C. The substitute provides 10°C additional low-temperature capability and 25°C additional high-temperature capability, supporting a broader range of environmental conditions.

Q: Is the MUR120G RoHS compliant?

A: Yes. The MUR120G carries ROHS3 compliance certification. The UG06D/54 is RoHS non-compliant. If your application or regulatory requirements mandate RoHS compliance, the MUR120G is the appropriate selection.

Q: Why is the MUR120G rated for 1A when I only need 600mA?

A: The higher current rating provides design margin and operational headroom. The substitute can safely handle your 600mA requirement with reduced stress on the component, potentially extending service life and improving reliability. Higher current ratings do not negatively impact performance at lower operating currents.

Q: What is the reverse leakage current difference?

A: The UG06D/54 has a maximum reverse leakage of 5 µA at 200V, while the MUR120G has a maximum reverse leakage of 2 µA at 200V. Lower reverse leakage improves circuit performance by reducing unwanted current flow in the reverse-biased state, particularly beneficial in high-impedance applications.