Equivalent & Substitute Parts for 3UGC Green LED T-1 Through Hole

Part Overview

The 3UGC is a green LED indicator manufactured by Bivar Inc., featuring a 3mm T-1 through-hole package with clear lens and 200mcd brightness rating. This component is classified as obsolete, making identification of suitable substitutes essential for ongoing production and maintenance applications. The part operates at 2.1V forward voltage with 20mA test current and provides 30° viewing angle, typical for discrete LED indication circuits in industrial and consumer electronics.

Substiute Parts

3UGC

Bivar Inc.In Stock: 10573UGC Datasheet

Current PartRFQ

3UGC-S

Bivar Inc.In Stock: 11153UGC-S Datasheet

DirectRFQ

SSL-LX3044SGC

Lumex Opto/Components Inc.In Stock: 5804SSL-LX3044SGC Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3UGC is determined by strict alignment across the following critical parameters:

Primary Compatibility Criteria:

• Color: Green
• Lens Size: 3mm, T-1
• Lens Style: Round with Domed Top
• Lens Transparency: Clear
• Millicandela Rating: 200mcd
• Mounting Type: Through Hole
• Package / Case: Radial
• Moisture Sensitivity Level: 1 (Unlimited)

Secondary Tolerance Parameters:

• Voltage - Forward (Vf) Typical: ±0.1V variance acceptable
• Viewing Angle: 30°
• Height Maximum: ±0.10mm variance acceptable
• Wavelength - Peak: ±5nm variance acceptable

Two substitute parts meet these criteria: the 3UGC-S (direct manufacturer variant) and the SSL-LX3044SGC (parametric equivalent from Lumex Opto/Components Inc.).

Parameter Comparison

Engineering Selection Recommendations

3UGC-S (Direct Manufacturer Substitute): The 3UGC-S is the primary substitute option. Manufactured by Bivar Inc., it maintains identical electrical and mechanical specifications to the obsolete 3UGC while offering active product status. The 3UGC-S carries ROHS3 compliance certification and is available in bulk packaging. This part provides direct compatibility with existing circuit designs without parameter deviation.

SSL-LX3044SGC (Parametric Equivalent): The SSL-LX3044SGC from Lumex Opto/Components Inc. serves as a parametric equivalent when 3UGC-S availability is constrained. This part exhibits minor parameter variations: forward voltage of 2.2V (versus 2.1V), peak wavelength of 565nm (versus 570nm), and maximum height of 4.60mm (versus 4.50mm). These variations remain within acceptable tolerance ranges for standard LED indication applications. The SSL-LX3044SGC carries ROHS3 compliance and REACH Unaffected status, with significantly higher inventory availability (5733 units).

Selection Criteria:

• For direct replacement with zero parameter deviation: select 3UGC-S
• For applications with component availability constraints: select SSL-LX3044SGC
• Both substitutes support through-hole PCB assembly and radial package mounting
• Both substitutes maintain 200mcd brightness and 30° viewing angle specifications

Frequently Asked Questions (FAQ)

Q: Can the 3UGC-S be used as a direct replacement for the 3UGC? A: Yes. The 3UGC-S maintains identical electrical specifications (2.1V forward voltage, 20mA test current), mechanical dimensions (3mm T-1 package, 4.50mm maximum height), and optical characteristics (200mcd, 30° viewing angle, 570nm peak wavelength). The primary difference is product status: 3UGC-S is active while 3UGC is obsolete.

Q: What are the differences between 3UGC-S and SSL-LX3044SGC? A: Both parts share identical color, lens size, lens style, brightness rating, viewing angle, and mounting type. Differences include: manufacturer (Bivar vs. Lumex), forward voltage (2.1V vs. 2.2V), peak wavelength (570nm vs. 565nm), and maximum height (4.50mm vs. 4.60mm). These variations fall within acceptable tolerance ranges for LED indication circuits.

Q: Are there packaging differences between the substitutes? A: The 3UGC is listed with unspecified packaging. The 3UGC-S is supplied in bulk packaging. The SSL-LX3044SGC is also supplied in bulk packaging. Both substitutes support standard through-hole assembly processes.

Q: Do the substitute parts meet environmental compliance requirements? A: Both 3UGC-S and SSL-LX3044SGC carry ROHS3 compliance certification. The SSL-LX3044SGC additionally carries REACH Unaffected status. Both parts maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the impact of the 0.1V forward voltage difference between 3UGC and SSL-LX3044SGC? A: The SSL-LX3044SGC operates at 2.2V versus the 3UGC's 2.1V. This 0.1V difference is typical within LED component manufacturing tolerances and does not affect circuit functionality in standard current-limiting resistor designs. Circuit designers should verify forward voltage in their specific application context.

Q: What is the significance of the 5nm wavelength difference between the substitutes? A: The 3UGC operates at 570nm peak wavelength while the SSL-LX3044SGC operates at 565nm. Both wavelengths fall within the green spectrum and produce visually equivalent color perception for human observation. The difference is negligible for standard LED indication applications.

Q: Can the SSL-LX3044SGC be used in space-constrained PCB layouts? A: The SSL-LX3044SGC has a maximum height of 4.60mm compared to the 3UGC's 4.50mm. This 0.10mm difference is minimal and does not typically impact PCB layout constraints. Verify clearance requirements in your specific application.