CUD7GF1B Equivalent & Substitute Parts

Part Overview

The CUD7GF1B is an ultraviolet (UV) emitter manufactured by SETi/Seoul Viosys, designed for applications requiring 275nm wavelength emission. This surface-mount component operates at 6V forward voltage with a maximum forward current of 200mA and provides a 125° viewing angle in a 1414 (3535 Metric) package. The part is currently active in production and RoHS3 compliant. Substitute parts may be required due to inventory constraints, application-specific performance requirements, or design optimization needs.

Substiute Parts

CUD7GF1B

SETi/Seoul ViosysIn Stock: 1207CUD7GF1B Datasheet

Current PartRFQ

XBT-3535-UV-A130-CD270-00

Luminus Devices Inc.In Stock: 2181XBT-3535-UV-A130-CD270-00 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CUD7GF1B are qualified based on the following critical parameters:

• Wavelength: 275nm (primary functional requirement)
• Package / Case: 1414 (3535 Metric) (mechanical and thermal compatibility)
• Mounting Type: Surface Mount (assembly process compatibility)
• Type: Ultraviolet (UV) Emitter (functional category)

The substitute part XBT-3535-UV-A130-CD270-00 meets these core substitution criteria. Variations in forward voltage, maximum forward current, viewing angle, and operating temperature range are acceptable within the allowed electrical and mechanical parameters for this product category, provided the application design accommodates these differences.

Parameter Comparison

Engineering Selection Recommendations

Both the CUD7GF1B and XBT-3535-UV-A130-CD270-00 are active products with ROHS3 compliance and REACH unaffected status. The substitute part XBT-3535-UV-A130-CD270-00 is electrically and mechanically compatible for applications requiring 275nm UV emission in a 1414 (3535 Metric) surface-mount package. Circuit design must account for the higher typical forward voltage (6.5V vs. 6V) and higher maximum forward current rating (800mA vs. 200mA) of the substitute part. The extended operating temperature range of the substitute part (-30°C ~ 100°C) provides additional thermal margin compared to the main part (-30°C ~ 60°C).

Frequently Asked Questions (FAQ)

Q: Can XBT-3535-UV-A130-CD270-00 be used as a direct replacement for CUD7GF1B?

A: Yes, within the constraints of circuit design. Both parts share identical wavelength (275nm), package (1414/3535 Metric), and mounting type (Surface Mount). The substitute part has higher forward voltage and current ratings, requiring circuit verification to ensure compatibility with existing power supply and current-limiting designs.

Q: What are the key differences between these parts?

A: The primary differences are forward voltage (6V vs. 6.5V), maximum forward current (200mA vs. 800mA), viewing angle (125° vs. 130°), and operating temperature range (-30°C ~ 60°C vs. -30°C ~ 100°C). These differences do not affect package compatibility or wavelength performance.

Q: Are both parts RoHS compliant?

A: Yes, both CUD7GF1B and XBT-3535-UV-A130-CD270-00 are ROHS3 compliant and REACH unaffected.

Q: Does the viewing angle difference affect substitution?

A: The substitute part has a slightly wider viewing angle (130° vs. 125°). This difference is acceptable for most applications and does not prevent substitution from a mechanical or electrical standpoint.

Q: What is the moisture sensitivity level consideration?

A: CUD7GF1B has MSL 3 (168 Hours), while XBT-3535-UV-A130-CD270-00 has MSL 1 (Unlimited). The substitute part has lower moisture sensitivity, which is advantageous for storage and handling.