CUD7MN1A Equivalent & Substitute Parts

Part Overview

The CUD7MN1A is an ultraviolet (UV) emitter operating at 275nm wavelength, designed for surface mount applications in Star Array packaging. This component delivers 200mA DC forward current at 6V typical forward voltage with a 135° viewing angle. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

CUD7MN1A

SETi/Seoul ViosysIn Stock: 1185CUD7MN1A Datasheet

Current PartRFQ

TUD7MF1B

SETi/Seoul ViosysIn Stock: 1076TUD7MF1B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CUD7MN1A is determined by the following critical parameters:

• Wavelength (275nm): Must match exactly to maintain UV emission characteristics
• Current Rating (200mA): Must be identical to ensure circuit compatibility
• Voltage Rating (6V): Must match to prevent overstress or underpowering
• Mounting Type (Surface Mount): Must be compatible with PCB assembly processes
• Package Type (Star Array): Must maintain physical and thermal interface compatibility
• Orientation (Top View): Must align with board layout requirements

The TUD7MF1B meets all critical electrical parameters (wavelength, current, voltage, mounting, and package type) and represents a direct functional equivalent despite differences in viewing angle and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The TUD7MF1B is the designated substitute for the obsolete CUD7MN1A. Both components are manufactured by SETi/Seoul Viosys and maintain identical electrical specifications for wavelength (275nm), forward current (200mA), and forward voltage (6V). Both are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for new designs and legacy system support.

The TUD7MF1B carries active product status, ensuring ongoing availability and supply chain continuity. The viewing angle difference (125° versus 135°) and operating temperature lower bound (-30°C versus -40°C) represent the only parameter variations and must be evaluated against specific application requirements.

Frequently Asked Questions (FAQ)

Q: Can TUD7MF1B directly replace CUD7MN1A in existing designs?

A: Yes, provided the application does not require the full -40°C lower operating temperature limit or the 135° viewing angle of the original part. The electrical specifications are identical.

Q: What is the significance of the viewing angle difference?

A: The CUD7MN1A provides 135° viewing angle while TUD7MF1B provides 125°. This affects the spatial distribution of UV emission. Applications requiring the wider 135° angle must evaluate whether the 125° angle meets optical requirements.

Q: Are both parts RoHS compliant?

A: Yes, both CUD7MN1A and TUD7MF1B are ROHS3 compliant and REACH unaffected.

Q: Why is CUD7MN1A listed as obsolete?

A: Obsolete status indicates the part is no longer in active production. TUD7MF1B is the active equivalent maintained in the manufacturer's current product line.

Q: Are the Star Array packages identical between both parts?

A: Both parts use Star Array packaging for surface mount applications. Physical and thermal interface compatibility is maintained.

Q: What is the packaging difference between the two parts?

A: CUD7MN1A is supplied without specified packaging, while TUD7MF1B is supplied in Tray packaging. This affects handling and storage but does not impact electrical performance.