Bivar Inc. 3GC LED GREEN CLEAR T-1 T/H Equivalent & Substitute Parts

Part Overview

The Bivar Inc. 3GC is a green LED indication component designed for discrete through-hole applications with a 2.1V forward voltage and 3mm T-1 lens form factor. The main part carries an obsolete product status, necessitating identification of functionally equivalent alternatives for ongoing production and design requirements. Substitute parts must maintain compatibility across critical electrical parameters including forward voltage, current rating, lens transparency, and through-hole mounting configuration.

Key Parameters

Parameter	Specification
Manufacturer Part Number	3GC
Manufacturer	Bivar Inc.
Product Status	Obsolete
Color	Green
Lens Transparency	Clear
Lens Size	3mm, T-1
Voltage - Forward (Vf) (Typ)	2.1V
Current - Test	20mA
Millicandela Rating	40mcd
Viewing Angle	30°
Mounting Type	Through Hole
Wavelength - Peak	568nm
Height (Max)	4.50mm
Package / Case	Radial
Supplier Device Package	T-1

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on alignment with the critical parameters of the 3GC:

Parametric Equivalent: 3GC-S (Bivar Inc.) is a direct parametric match with identical electrical and mechanical specifications. The distinction is packaging format (bulk versus tape & reel) and active product status.

Similar Manufacturer Parts: Substitutes are grouped based on compatibility across the following key parameters:

Color: Green
Lens Transparency: Clear (or diffused variants noted for differences)
Lens Size: 3mm or near-equivalent diameter
Voltage - Forward (Vf): 2.1V ±0.15V range
Current - Test: 20mA (or closely aligned test current)
Mounting Type: Through Hole, Radial configuration
Package / Case: Radial with T-1 or equivalent form factor

Parts with different lens transparency (diffused instead of clear) or forward voltage >2.15V are listed with explicit parameter differences. Parts with significantly different millicandela ratings are noted as acceptable substitutes only if electrical parameters align.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Product Status	Color	Lens Transparency	Vf (Typ)	Current - Test	Millicandela Rating	Viewing Angle	Height (Max)	Wavelength - Peak
3GC	Bivar Inc.	Obsolete	Green	Clear	2.1V	20mA	40mcd	30°	4.50mm	568nm
3GC-S	Bivar Inc.	Active	Green	Clear	2.1V	20mA	40mcd	30°	4.50mm	568nm
151031VS04000	Würth Elektronik	Active	Green	Diffused	2.1V	20mA	120mcd	40°	5.55mm	573nm
264-7SYGC/S530-E2	Everlight Electronics Co Ltd	Active	Yellow-Green	Clear	2V	20mA	100mcd	40°	6.30mm	575nm
HLMP-Y801-JPP00	Broadcom Limited	Active	Green	Clear	2.1V	20mA	310mcd	30°	5.20mm	575nm
LTL-4236N	Lite-On Inc.	Active	Green	Clear	2.1V	10mA	40mcd	45°	5.85mm	565nm
LTL1CHKGKNN	Lite-On Inc.	Active	Green	Clear	2.05V	20mA	320mcd	45°	5.20mm	575nm
MV7442	Fairchild Semiconductor	Active	Green	Clear	2.1V	20mA	120mcd	45°	6.30mm	565nm
SLR-343MC3F	Rohm Semiconductor	Not For New Designs	Green	Clear	2.1V	10mA	25mcd	40°	5.60mm	572nm
SLR-343PC3F	Rohm Semiconductor	Last Time Buy	Green	Clear	2.1V	10mA	6.3mcd	40°	5.60mm	560nm
SSL-LX3044GC	Lumex Opto/Components Inc.	Active	Green	Clear	2.2V	20mA	100mcd	30°	4.60mm	565nm

Engineering Selection Recommendations

Primary Substitute (Direct Replacement): 3GC-S from Bivar Inc. is the recommended direct replacement. It maintains identical electrical and mechanical specifications with active product status and RoHS3 compliance.

Secondary Substitutes (Active Product Status): The following parts are suitable for applications where the original 3GC specifications are required:

HLMP-Y801-JPP00 (Broadcom Limited): Identical voltage and current ratings. Forward voltage 2.1V, 20mA test current. Active status with RoHS3 compliance and REACH unaffected designation.
MV7442 (Fairchild Semiconductor): Matches voltage and current parameters. Forward voltage 2.1V, 20mA test current. Active status with RoHS3 compliance. Increased height (6.30mm) and higher millicandela rating (120mcd) require mechanical clearance verification.
SSL-LX3044GC (Lumex Opto/Components Inc.): Near-equivalent specifications with forward voltage 2.2V. Identical 20mA test current and 30° viewing angle. Active status with RoHS3 compliance. Slightly higher forward voltage (0.1V increase) requires verification against circuit tolerances.

Limited Substitutes (Conditional Use): Parts with different current test ratings, viewing angles, or height dimensions are acceptable only if application requirements permit mechanical and electrical deviations:

LTL-4236N (Lite-On Inc.): Lower test current (10mA vs. 20mA). REACH affected status requires supply chain evaluation.
LTL1CHKGKNN (Lite-On Inc.): Slightly lower forward voltage (2.05V). Higher millicandela rating (320mcd) and wider viewing angle (45°). Active status with RoHS3 compliance.

Not Recommended for New Designs: SLR-343MC3F and SLR-343PC3F carry "Not For New Designs" and "Last Time Buy" status respectively. These are unsuitable for new product development.

Wavelength and Color Considerations: 264-7SYGC/S530-E2 (Everlight) is classified as yellow-green with dominant wavelength 573nm, creating a visible color shift from the original green specification. This substitute is acceptable only for applications where color differentiation is acceptable.

Frequently Asked Questions (FAQ)

Q: Can I use 3GC-S as a direct drop-in replacement for the obsolete 3GC? A: Yes. 3GC-S is a parametric equivalent with identical electrical specifications (2.1V Vf, 20mA test current, 40mcd rating) and mechanical form factor. The only difference is packaging (bulk instead of original packaging). This is the recommended substitution path.

Q: What is the forward voltage tolerance for substitute selection? A: Substitute parts with forward voltage between 2.0V and 2.2V are included. SSL-LX3044GC operates at 2.2V (0.1V higher) and requires circuit verification. Parts exceeding 2.2V forward voltage are excluded from the substitution matrix.

Q: Do I need to change my circuit design to use HLMP-Y801-JPP00? A: No design changes are required if circuit tolerance accommodates the identical 2.1V forward voltage and 20mA operating current. However, HLMP-Y801-JPP00 has a significantly higher millicandela rating (310mcd vs. 40mcd), which may require optical design adjustment if brightness consistency is critical.

Q: Can I use parts with different test currents (10mA vs. 20mA)? A: Test current differences indicate variations in LED design and performance characteristics. LTL-4236N and SLR-343MC3F operate at 10mA test current and require application-level verification before adoption. These are acceptable only if your circuit design permits lower operating current or if the part is characterized at your intended operating point.

Q: What is the mechanical height tolerance across substitutes? A: The original 3GC specifies 4.50mm maximum height. Substitutes range from 4.60mm (SSL-LX3044GC) to 6.30mm (MV7442 and 264-7SYGC/S530-E2). Height variations above 5.0mm require mechanical clearance verification in existing PCB designs with height constraints.

Q: Are all recommended substitutes RoHS3 compliant? A: All active-status substitutes carry RoHS3 compliance certification. Parts with "Not For New Designs" or "Last Time Buy" status are excluded from primary recommendations. Verify REACH status for supply chain requirements; LTL-4236N is REACH affected while others are REACH unaffected.

Q: How do I handle the viewing angle differences between substitutes? A: The original 3GC specifies 30° viewing angle. Substitutes with wider viewing angles (40°–45°) provide broader light distribution, suitable for applications where wider visibility is beneficial. Narrower viewing angles are not available among the substitutes. Verify application optical requirements before adopting parts with viewing angle differences.

Q: Why is 264-7SYGC/S530-E2 listed as a similar part if it is yellow-green? A: 264-7SYGC/S530-E2 maintains compatible electrical parameters (2V Vf, 20mA test current, through-hole radial mounting) and is a functional LED indication component. However, the yellow-green color (573nm dominant wavelength) creates a visible spectral difference from the green specification (568nm). This substitute is suitable only for applications where color variation is acceptable or where green and yellow-green can be used interchangeably.

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