Equivalent & Substitute Parts for Bivar Inc. 3GD LED GREEN DIFFUSED T-1 T/H

Part Overview

The Bivar Inc. 3GD is a green diffused LED indicator in T-1 (3mm) through-hole package configuration, designed for discrete green LED indication applications. This component features a 2.1V forward voltage, 25mcd brightness rating, and 40° viewing angle with a round domed lens. The 3GD is classified as obsolete product status, necessitating identification of active equivalent and substitute components for ongoing design requirements and procurement continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	3GD
Manufacturer	Bivar Inc.
Product Status	Obsolete
Color	Green
Lens Transparency	Diffused
Lens Size	3mm, T-1
Voltage - Forward (Vf) (Typ)	2.1V
Current - Test	20mA
Millicandela Rating	25mcd
Viewing Angle	40°
Lens Style	Round with Domed Top
Mounting Type	Through Hole
Wavelength - Peak	568nm
Package / Case	Radial
Height (Max)	4.50mm
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical and mechanical parameter alignment with the 3GD:

Parametric Equivalents maintain identical or near-identical electrical characteristics and physical form factors:

Forward voltage (Vf): 2.1V
Test current: 20mA
Lens size: 3mm T-1
Lens style: Round with domed top
Mounting type: Through hole radial
Wavelength peak: 568nm
Viewing angle: 40°

Similar Parts share the same color, lens transparency, and mounting type but differ in one or more electrical parameters (forward voltage, brightness rating, viewing angle, or wavelength specifications). These parts require circuit design verification before substitution.

Parameter Comparison

Part Number	Manufacturer	Product Status	Color	Vf (Typ)	Current - Test	mcd Rating	Viewing Angle	Lens Size	Wavelength - Peak	Height (Max)	RoHS Status
3GD	Bivar Inc.	Obsolete	Green	2.1V	20mA	25mcd	40°	3mm, T-1	568nm	4.50mm	Not specified
3GD-S	Bivar Inc.	Active	Green	2.1V	20mA	25mcd	40°	3mm, T-1	568nm	4.50mm	ROHS3 Compliant
3SGD-S	Bivar Inc.	Active	Green	2.1V	20mA	30mcd	40°	3mm, T-1	568nm	4.50mm	ROHS3 Compliant
151031VS06000	Würth Elektronik	Active	Green	2.2V	20mA	30mcd	60°	3.00mm Dia	560nm	5.55mm	ROHS3 Compliant
264-7SYGD/S530-E2	Everlight Electronics Co Ltd	Active	Yellow-Green	2V	20mA	50mcd	60°	2.90mm Dia	575nm	6.20mm	ROHS3 Compliant
414SYGD/S530-E2	Everlight Electronics Co Ltd	Active	Yellow-Green	2V	20mA	12.5mcd	140°	3.00mm Dia	575nm	7.00mm	Not specified
HLMP-1503-D00FG	Broadcom Limited	Active	Green	2.1V	10mA	4.2mcd	60°	3mm, T-1	565nm	6.35mm	ROHS3 Compliant
HLMP-1640	Broadcom Limited	Active	Green	5V	10mA	1.6mcd	60°	3mm, T-1	565nm	6.35mm	ROHS3 Compliant
HLMP-1640-B00A1	Broadcom Limited	Active	Green	5V	10mA	1.6mcd	120°	3mm, T-1	565nm	Not specified	ROHS3 Compliant
HLMP-1640-B00A2	Broadcom Limited	Active	Green	5V	10mA	1.6mcd	60°	3mm, T-1	565nm	Not specified	ROHS3 Compliant
HLMP-1641	Broadcom Limited	Active	Green	12V	13mA	1.6mcd	60°	3mm, T-1	565nm	6.35mm	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: Bivar Inc. 3GD-S

The 3GD-S is the direct parametric equivalent to the obsolete 3GD. This part maintains identical electrical specifications (2.1V forward voltage, 20mA test current, 25mcd brightness) and physical form factor (3mm T-1 through-hole radial package, 4.50mm maximum height). The 3GD-S is active product status with ROHS3 compliance certification, providing design continuity with no circuit modification required.

Secondary Recommendation: Bivar Inc. 3SGD-S

The 3SGD-S offers increased brightness (30mcd versus 25mcd) while maintaining all other electrical and mechanical parameters identical to the 3GD. This part is suitable for applications where enhanced luminous intensity is acceptable or beneficial. ROHS3 compliance is certified.

Alternative Consideration: Würth Elektronik 151031VS06000

The 151031VS06000 provides active product status with ROHS3 compliance and REACH unaffected certification. Forward voltage is slightly elevated (2.2V versus 2.1V), viewing angle is wider (60° versus 40°), and brightness is increased (30mcd versus 25mcd). This part requires circuit verification for voltage tolerance and optical performance validation before substitution.

Not Recommended for Direct Substitution:

Broadcom Limited HLMP-1640, HLMP-1640-B00A1, HLMP-1640-B00A2, and HLMP-1641 parts operate at significantly different forward voltages (5V and 12V respectively) and reduced brightness ratings (1.6mcd). These parts require substantial circuit redesign and are not suitable as direct replacements.

Everlight Electronics 264-7SYGD/S530-E2 and 414SYGD/S530-E2 are yellow-green LEDs with different wavelength characteristics (573nm dominant, 575nm peak) and do not provide equivalent green color matching to the 3GD.

Broadcom Limited HLMP-1503-D00FG operates at reduced test current (10mA versus 20mA) and significantly lower brightness (4.2mcd versus 25mcd), making it unsuitable for equivalent replacement.

Frequently Asked Questions (FAQ)

Q: Can the 3GD-S be used as a direct replacement for the 3GD?

A: Yes. The 3GD-S maintains identical forward voltage (2.1V), test current (20mA), brightness rating (25mcd), viewing angle (40°), lens size (3mm T-1), and physical height (4.50mm). No circuit modification is required. The 3GD-S is active product status with ROHS3 compliance.

Q: What is the difference between the 3GD-S and 3SGD-S?

A: Both parts share identical electrical specifications and physical form factors. The 3SGD-S provides increased brightness at 30mcd compared to 25mcd for the 3GD-S. Selection depends on application luminous intensity requirements.

Q: Can the Würth Elektronik 151031VS06000 replace the 3GD?

A: The 151031VS06000 is mechanically and functionally similar but differs in three parameters: forward voltage (2.2V versus 2.1V), viewing angle (60° versus 40°), and brightness (30mcd versus 25mcd). Circuit verification is required to confirm voltage tolerance and validate that the wider viewing angle and increased brightness are acceptable for the application.

Q: Why are the Broadcom HLMP-1640 and HLMP-1641 parts not suitable replacements?

A: These parts operate at significantly different forward voltages (5V and 12V respectively) compared to the 3GD (2.1V). They also feature substantially reduced brightness ratings (1.6mcd versus 25mcd). Direct substitution would require complete circuit redesign and would not provide equivalent optical performance.

Q: What does ROHS3 compliance mean for LED component selection?

A: ROHS3 compliance indicates the component meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. ROHS3 certified parts are suitable for applications requiring environmental compliance and are recommended for new designs.

Q: Are the Everlight yellow-green LEDs compatible with the 3GD?

A: No. The Everlight 264-7SYGD/S530-E2 and 414SYGD/S530-E2 are yellow-green LEDs with dominant wavelengths of 573nm, differing from the 3GD green specification of 568nm. Color matching requirements typically preclude substitution between green and yellow-green LEDs.

Q: What packaging options are available for the recommended substitutes?

A: The 3GD-S and 3SGD-S are available in bulk packaging. The Würth Elektronik 151031VS06000 is supplied in bulk packaging. All recommended parts are through-hole radial configuration suitable for PCB insertion and wave soldering processes.

Q: Does the 3GD-S have the same moisture sensitivity level as the 3GD?

A: Yes. Both the 3GD and 3GD-S are classified as MSL 1 (Unlimited), indicating no moisture sensitivity precautions are required during storage, handling, or assembly.

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