Equivalent & Substitute Parts for Bivar Inc. 5UYC Yellow LED T-1 3/4 Through Hole

Part Overview

The Bivar Inc. 5UYC is a yellow LED indicator component designed for discrete 2V radial applications in through-hole mounting configurations. This part features a 5mm T-1 3/4 clear lens with 2000mcd brightness rating and 20° viewing angle. The 5UYC is classified as obsolete, necessitating identification of active substitute components that maintain functional compatibility within the specified electrical and mechanical parameters.

Substiute Parts

5UYC

Bivar Inc.In Stock: 7455UYC Datasheet

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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

Substitute components for the 5UYC are selected based on strict alignment with the following critical parameters:

Mandatory Compatibility Parameters:

• Color: Yellow
• Mounting Type: Through Hole
• Lens Size: 5mm, T-1 3/4 (or equivalent 5mm round)
• Voltage - Forward (Vf): 2V nominal (tolerance range 2V to 2.2V acceptable)
• Current - Test: 20mA
• Package / Case: Radial
• Wavelength - Peak: 590nm region (585nm to 592nm acceptable)

Variable Parameters (Substitution Allowed):

• Lens Transparency: Clear or Diffused
• Lens Color: Colorless or Yellow
• Millicandela Rating: 25mcd to 2000mcd
• Viewing Angle: 20° to 100°
• Height (Max): 6.80mm to 8.95mm
• Product Status: Active preferred over Obsolete

Four substitute parts meet the mandatory compatibility criteria while offering active product status and current availability.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: OVLLY8C7 (TT Electronics/Optek Technology)

The OVLLY8C7 provides the closest electrical and optical match to the 5UYC. Both components operate at 2V forward voltage with 20mA test current and feature clear colorless lenses in 5mm T-1 3/4 packages. The OVLLY8C7 delivers 980mcd brightness, which approaches the 2000mcd rating of the 5UYC. The component is active, ROHS3 compliant, and maintains MSL 1 rating. The primary difference is a wider 100° viewing angle compared to the 5UYC's 20° specification, and a reduced height of 6.80mm. These variations remain within acceptable substitution parameters for most through-hole LED indication applications.

Secondary Substitute: 151051YS04000 (Würth Elektronik)

The 151051YS04000 from the WL-TMRC series operates at 2V forward voltage with 20mA test current and 590nm peak wavelength. This component features a diffused yellow lens in a 5mm round through-hole radial package. The 450mcd brightness rating and 40° viewing angle provide moderate optical performance. The component is active, ROHS3 compliant, and REACH unaffected. Height specification of 8.95mm is marginally above the 5UYC baseline. This substitute is suitable for applications where diffused lens characteristics are acceptable.

Tertiary Substitute: MV3350 (Fairchild Semiconductor)

The MV3350 operates at 2.2V forward voltage, which represents a 0.2V increase from the 5UYC specification. This component features a clear colorless lens in a 5mm T-1 3/4 through-hole radial package with 150mcd brightness and 24° viewing angle. The MV3350 is active and ROHS3 compliant. The elevated forward voltage and reduced brightness rating require circuit verification before implementation. MSL 3 rating indicates moisture sensitivity requiring controlled storage conditions.

Alternative Substitute: 5YD (Bivar Inc.)

The 5YD maintains manufacturer continuity as a Bivar Inc. component operating at 2V forward voltage with 20mA test current. This part features a diffused yellow lens in a 5mm T-1 3/4 through-hole radial package with 25mcd brightness and 45° viewing angle. The 5YD is active and ROHS3 compliant with MSL 1 rating. The significantly reduced brightness rating of 25mcd limits this substitute to low-intensity indication applications only.

Frequently Asked Questions (FAQ)

Q: Can the 5UYC be directly replaced with any of these substitute parts?

A: Direct replacement is possible only when the application circuit accommodates the electrical and optical parameter variations listed in the Parameter Comparison table. The OVLLY8C7 provides the closest functional match. Applications requiring exact 2000mcd brightness or 20° viewing angle specifications may require circuit redesign.

Q: What is the primary difference between clear and diffused lens options?

A: Clear lenses (5UYC, MV3350, OVLLY8C7) transmit light with minimal scattering, producing a concentrated bright spot with defined viewing angle. Diffused lenses (5YD, 151051YS04000) scatter light across a wider area, reducing peak brightness but increasing visibility from off-axis positions. Selection depends on application requirements for brightness concentration versus angular visibility.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All four substitute components carry ROHS3 compliance certification. The original 5UYC does not specify RoHS status due to its obsolete classification.

Q: What does MSL rating indicate for these components?

A: Moisture Sensitivity Level (MSL) specifies storage and handling requirements. MSL 1 (5UYC, 5YD, 151051YS04000, OVLLY8C7) indicates unlimited shelf life under normal conditions. MSL 3 (MV3350) requires controlled storage at specified temperature and humidity, with a 168-hour floor life after packaging opening.

Q: Can the 5UYC be replaced in a circuit designed for 2000mcd brightness?

A: The OVLLY8C7 at 980mcd provides approximately 49% of the original brightness. The 151051YS04000 at 450mcd provides approximately 23% of the original brightness. Applications requiring full brightness specification may require circuit modifications or selection of alternative components outside this substitute list.

Q: What is the significance of the 0.2V difference in the MV3350 forward voltage?

A: The MV3350 operates at 2.2V compared to the 5UYC's 2V specification. In series-resistor-limited circuits, this 0.2V increase reduces LED current by approximately 10mA per 1kΩ of series resistance. Circuit verification is required to confirm acceptable brightness and current levels.

Q: Are there mechanical compatibility concerns with height variations?

A: The OVLLY8C7 height of 6.80mm is 1.70mm shorter than the 5UYC baseline of 8.50mm. The 151051YS04000 and MV3350 are marginally taller at 8.95mm and 8.90mm respectively. Height variations may affect PCB layout, component clearance, and mechanical assembly. Verify mechanical fit within the target application before implementation.

Q: Which substitute offers the widest viewing angle?

A: The OVLLY8C7 provides a 100° viewing angle, compared to the 5UYC's 20° specification. This wider angle increases visibility from off-axis positions but concentrates less light in the forward direction. The 5YD offers 45° and the 151051YS04000 offers 40° as intermediate options.

Q: Can the 5YD substitute for the 5UYC in high-brightness applications?

A: No. The 5YD's 25mcd rating represents only 1.25% of the 5UYC's 2000mcd specification. The 5YD is suitable only for low-intensity indicator applications where brightness is not a critical parameter.