LED Yellow T-1 3/4 Through Hole 5UUYC Equivalent & Substitute Parts

Part Overview

The Bivar Inc. 5UUYC is a yellow LED indication component in T-1 3/4 through-hole package format with a clear, domed lens. This part operates at 2V forward voltage with 500mcd brightness rating and 35° viewing angle. The 5UUYC is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. Substitute components must maintain compatibility with through-hole mounting, radial package configuration, and the specified electrical operating parameters.

Substiute Parts

5UUYC

Bivar Inc.In Stock: 8805UUYC Datasheet

Current PartRFQ

5YD

Bivar Inc.In Stock: 10135YD Datasheet

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151051YS04000

Würth ElektronikIn Stock: 2137151051YS04000 Datasheet

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MV3350

Fairchild SemiconductorIn Stock: 61262MV3350 Datasheet

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OVLLY8C7

TT Electronics/Optek TechnologyIn Stock: 9885OVLLY8C7 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the 5UUYC is based on the following allowed parameters:

Primary Compatibility Criteria:

• Color: Yellow (all substitutes)
• Mounting Type: Through Hole (all substitutes)
• Package Type: Radial (all substitutes)
• Lens Size: 5mm, T-1 3/4 form factor (all substitutes)
• Voltage - Forward (Vf): 2V nominal (acceptable range 2V to 2.2V)
• Current - Test: 20mA (all substitutes)
• Wavelength - Peak: 585nm to 592nm (yellow spectrum)

Secondary Variation Parameters:

• Lens Transparency: Clear or Diffused (affects light distribution)
• Millicandela Rating: 25mcd to 980mcd (brightness variation)
• Viewing Angle: 24° to 100° (angular distribution variation)
• Product Status: Active substitutes preferred over obsolete main part
• Compliance: RoHS3 compliance available for all active substitutes

The four substitute parts listed maintain electrical compatibility while offering variations in optical characteristics and availability status.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Closest Electrical Match):

The 5YD (Bivar Inc.) provides the closest electrical and mechanical compatibility. Both parts share identical forward voltage (2V), test current (20mA), lens size (5mm T-1 3/4), height (8.50mm), and mounting configuration. The 5YD is active product status with RoHS3 compliance and unlimited moisture sensitivity rating. The primary difference is lens transparency (diffused vs. clear) and brightness (25mcd vs. 500mcd), which affects optical distribution but not electrical circuit compatibility.

For High Brightness Applications:

The OVLLY8C7 (TT Electronics/Optek Technology) offers the highest brightness rating at 980mcd with clear lens and 2V forward voltage. This part maintains electrical compatibility and provides superior luminous intensity. The viewing angle is significantly wider at 100° compared to the 5UUYC's 35°. Height is reduced to 6.80mm. RoHS3 compliance and unlimited moisture sensitivity are provided.

For Balanced Optical Performance:

The 151051YS04000 (Würth Elektronik) delivers 450mcd brightness with diffused lens and 2V forward voltage. This part provides moderate brightness reduction from the 5UUYC while maintaining electrical compatibility. The 40° viewing angle is close to the original 35°. RoHS3 compliance and unlimited moisture sensitivity are provided. Lens size is 4.90mm diameter, which is within T-1 3/4 specification tolerance.

For Lowest Brightness Applications:

The MV3350 (Fairchild Semiconductor) operates at 2.2V forward voltage with 150mcd brightness and clear lens. This part is suitable only when circuit design accommodates the 0.2V voltage increase. The 24° viewing angle is narrower than the original. RoHS3 compliance is provided, but moisture sensitivity is rated at MSL 3 (168 hours), requiring controlled storage conditions.

Compliance Considerations:

All active substitute parts carry RoHS3 compliance certification. The 5UUYC main part does not specify RoHS status. For applications requiring RoHS compliance documentation, any of the four substitute parts satisfy this requirement. The 5YD, 151051YS04000, and OVLLY8C7 provide unlimited moisture sensitivity (MSL 1), while MV3350 requires controlled storage (MSL 3).

Frequently Asked Questions (FAQ)

Q: Can the 5YD directly replace the 5UUYC in existing circuit designs?

A: Yes, the 5YD provides direct electrical replacement. Both parts operate at 2V forward voltage with 20mA test current and identical lens size (5mm T-1 3/4). The primary difference is lens transparency (diffused vs. clear) and brightness (25mcd vs. 500mcd). Circuit functionality is maintained, but visual brightness will be significantly reduced. Verify that the application tolerates lower luminous intensity before substitution.

Q: What is the impact of lens transparency differences between clear and diffused options?

A: Clear lens parts (5UUYC, MV3350, OVLLY8C7) transmit light with minimal scattering, producing a concentrated bright spot with defined viewing angle. Diffused lens parts (5YD, 151051YS04000) scatter light more broadly, reducing peak brightness but increasing the angular distribution of visible light. Selection depends on application requirements for brightness concentration versus angular visibility.

Q: Is the MV3350 compatible with circuits designed for 2V forward voltage?

A: The MV3350 operates at 2.2V forward voltage, which is 0.2V higher than the 5UUYC specification. This part is compatible only if the circuit design includes sufficient voltage headroom or current-limiting resistor adjustment. Verify that the power supply and circuit topology can accommodate the higher forward voltage before substitution.

Q: What are the height differences among substitute parts, and do they affect PCB layout?

A: The 5UUYC and 5YD both have 8.50mm maximum height. The 151051YS04000 and MV3350 are slightly taller at 8.95mm and 8.90mm respectively. The OVLLY8C7 is significantly shorter at 6.80mm. These differences may affect PCB clearance and component placement. Verify mechanical fit within the application's physical constraints before substitution.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all four substitute parts carry RoHS3 compliance certification. The 5UUYC main part does not specify RoHS status. For applications requiring RoHS compliance documentation, any substitute part satisfies this requirement.

Q: What is the difference between MSL 1 and MSL 3 moisture sensitivity ratings?

A: MSL 1 (Unlimited) allows indefinite storage without moisture control. MSL 3 (168 Hours) requires controlled storage conditions and limits exposure to ambient humidity to 168 hours before soldering. The MV3350 carries MSL 3 rating, requiring more stringent handling procedures. The 5YD, 151051YS04000, and OVLLY8C7 carry MSL 1 rating, allowing standard storage conditions.

Q: Which substitute part offers the closest brightness match to the 5UUYC?

A: The 151051YS04000 (450mcd) provides the closest brightness match to the 5UUYC (500mcd), with only 50mcd difference. The OVLLY8C7 (980mcd) is brighter, while the 5YD (25mcd) and MV3350 (150mcd) are significantly dimmer. Select based on application brightness requirements and optical distribution needs.

Q: Can the OVLLY8C7 be used in applications requiring narrow viewing angles?

A: The OVLLY8C7 has a 100° viewing angle, which is significantly wider than the 5UUYC's 35° angle. This part is not suitable for applications requiring narrow, concentrated light distribution. The MV3350 (24°) or 151051YS04000 (40°) provide narrower viewing angles closer to the original specification.

Q: What inventory availability should be considered for long-term supply?

A: The MV3350 has the highest inventory at 61,155 pieces, followed by OVLLY8C7 at 9,819 pieces. The 151051YS04000 has 2,066 pieces, and the 5YD has 985 pieces. For applications requiring sustained supply, the MV3350 and OVLLY8C7 offer better long-term availability. The 5UUYC main part has 783 pieces but is obsolete status.