DG5306X LED Green Clear 5MM Round T/H Equivalent & Substitute Parts

Part Overview

The DG5306X is a green 525nm LED indication component manufactured by Stanley Electric Co, designed for through-hole mounting in discrete 3.5V applications. This part is classified as obsolete, making substitute components necessary for ongoing production, maintenance, and new design implementations. The DG5306X features a 5mm round lens with domed top, 2400mcd brightness rating, and 10° viewing angle, suitable for standard indicator applications requiring green wavelength emission.

Key Parameters

Parameter	DG5306X Value	Substitution Relevance
Color	Green	Critical - determines visual indication function
Wavelength - Dominant	525nm	Critical - defines green spectrum compliance
Voltage - Forward (Vf) Typical	3.5V	Critical - circuit design compatibility
Current - Test	20mA	Critical - power supply and resistor sizing
Millicandela Rating	2400mcd	Important - brightness level for visibility requirements
Lens Size	5mm, T-1 3/4	Critical - mechanical fit and optical properties
Lens Style	Round with Domed Top	Important - optical beam pattern
Viewing Angle	10°	Important - directional visibility requirements
Mounting Type	Through Hole	Critical - PCB assembly compatibility
Package / Case	Radial	Critical - lead configuration and spacing
Height (Max)	8.80mm	Important - clearance and form factor
Lens Transparency	Clear	Important - optical transmission characteristics

Substitute Part Grouping Explanation

Substitute parts for the DG5306X are grouped based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Parameters (must match or be functionally equivalent):

Color: Green
Mounting Type: Through Hole
Package / Case: Radial
Lens Size: 5mm or T-1 3/4 equivalent
Lens Style: Round with Domed Top
Lens Transparency: Clear

Electrical Parameters (must be compatible with 3.5V, 20mA circuit design):

Voltage - Forward (Vf): 2.0V to 3.8V range acceptable for standard series resistor circuits
Current - Test: 20mA standard
Wavelength - Dominant: 520nm to 530nm range maintains green indication function

Secondary Parameters (may vary within application tolerance):

Millicandela Rating: Brightness variations acceptable if application does not specify minimum visibility
Viewing Angle: 6° to 30° range acceptable depending on application requirements
Height (Max): 8.80mm to 9.65mm range acceptable for standard through-hole PCB layouts

Substitute parts listed below meet these criteria and are sourced from active manufacturers with current product status and compliance certifications.

Parameter Comparison

Parameter	DG5306X (Stanley)	333-2SUGC/C525 (Everlight)	383-2SUGC/S400-A4 (Everlight)	5219947F (Dialight)	HLMP-CM1G-350DD (Broadcom)	HLMP-CM3A-Z1CDD (Broadcom)
Color	Green	Green	Green	Green	Green	Green
Wavelength - Dominant (nm)	525	525	530	527	525	525
Wavelength - Peak (nm)	522	518	525	518	517	516
Voltage - Forward (Vf) Typical (V)	3.5	3.5	3.4	3.8	3.1	3.2
Current - Test (mA)	20	20	20	20	20	20
Millicandela Rating (mcd)	2400	2000	4000	4200	43000	16500
Lens Size	5mm, T-1 3/4	5.00mm Dia	5.00mm Dia	5.00mm Dia	5mm, T-1 3/4	5.00mm Dia
Lens Style	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top
Viewing Angle (degrees)	10	10	6	30	15	30
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial	Radial	Radial	Radial	Radial	Radial
Height (Max) (mm)	8.80	8.90	8.90	9.65	8.90	8.90
Lens Transparency	Clear	Clear	Clear	Clear	Clear	Clear
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	Not specified	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	Not specified

Engineering Selection Recommendations

Primary Substitutes (Closest Electrical Match):

333-2SUGC/C525 (Everlight Electronics) provides the closest electrical match to DG5306X with identical forward voltage (3.5V) and wavelength (525nm dominant). This part is active status with current manufacturing support. Brightness is slightly lower at 2000mcd versus 2400mcd, suitable for applications where exact brightness matching is not critical. Viewing angle remains at 10°, maintaining directional characteristics of the original design.

HLMP-CM3A-Z1CDD (Broadcom Limited) offers active product status with forward voltage of 3.2V and 525nm dominant wavelength, within acceptable circuit compatibility range. This part provides 16500mcd brightness, significantly higher than the original 2400mcd, suitable for applications requiring enhanced visibility. Viewing angle of 30° provides wider light distribution compared to the original 10°. REACH compliance and RoHS3 certification ensure regulatory compliance for new designs.

Secondary Substitutes (Acceptable Electrical Variation):

383-2SUGC/S400-A4 (Everlight Electronics) operates at 3.4V forward voltage with 530nm dominant wavelength, within acceptable green spectrum range. Brightness of 4000mcd exceeds original specification. Narrower viewing angle of 6° provides more focused indication. ROHS3 compliance and MSL rating of 1 support manufacturing requirements.

5219947F (Dialight Series 521) features 3.8V forward voltage and 527nm wavelength, compatible with standard series resistor circuits. Brightness of 4200mcd and 30° viewing angle provide enhanced visibility with wider distribution. Active product status with ROHS3 compliance and unlimited MSL rating support production continuity.

HLMP-CM1G-350DD (Broadcom Limited) operates at 3.1V forward voltage with 525nm wavelength and 43000mcd brightness. This part is suitable for applications requiring maximum brightness output. Viewing angle of 15° provides moderate light distribution. Highest inventory availability (13534 pcs) ensures supply continuity. ROHS3 compliance and unlimited MSL rating support manufacturing requirements.

Selection Criteria:

For brightness-critical applications: Select HLMP-CM1G-350DD or 5219947F for enhanced visibility
For closest original performance: Select 333-2SUGC/C525 for minimal circuit redesign
For regulatory compliance: All active substitutes carry ROHS3 certification
For supply continuity: HLMP-CM1G-350DD offers highest inventory availability

Frequently Asked Questions (FAQ)

Q: Can I directly replace DG5306X with any of these substitute parts without circuit modification?

A: Direct replacement is possible for parts with forward voltage within 3.1V to 3.8V range (333-2SUGC/C525, 383-2SUGC/S400-A4, 5219947F, HLMP-CM1G-350DD, HLMP-CM3A-Z1CDD). Series resistor values may require adjustment if brightness output differs significantly from the original 2400mcd specification. Verify circuit design accommodates the selected part's forward voltage and current requirements.

Q: What is the difference between 525nm and 530nm wavelength LEDs?

A: Both wavelengths are within the green spectrum and produce visually similar green indication. 525nm is pure green, while 530nm appears slightly more yellow-green. For applications where color matching to the original DG5306X is critical, select 525nm dominant wavelength parts (333-2SUGC/C525, 5219947F, HLMP-CM1G-350DD, HLMP-CM3A-Z1CDD).

Q: Why do some substitute parts have significantly higher millicandela ratings?

A: Millicandela rating indicates brightness intensity. Higher ratings (HLMP-CM1G-350DD at 43000mcd, 5219947F at 4200mcd) provide enhanced visibility for applications requiring brighter indication. Lower ratings (333-2SUGC/C525 at 2000mcd) match the original brightness more closely. Select based on application visibility requirements and circuit power budget.

Q: Are all substitute parts RoHS3 compliant?

A: Active substitute parts listed carry ROHS3 compliance certification (383-2SUGC/S400-A4, 5219947F, HLMP-CM1G-350DD, HLMP-CM3A-Z1CDD). This ensures compliance with current environmental and hazardous substance regulations for new product designs and manufacturing.

Q: What does viewing angle mean, and why does it vary between parts?

A: Viewing angle defines the cone of light emission from the LED. Narrower angles (6° for 383-2SUGC/S400-A4) provide focused, directional indication. Wider angles (30° for 5219947F, HLMP-CM3A-Z1CDD) provide broader light distribution visible from multiple directions. Select based on application requirements for indicator visibility from specific viewing positions.

Q: Can I use 5219465F as a substitute for DG5306X?

A: 5219465F is not recommended as a primary substitute. This part operates at 2.3V forward voltage (significantly lower than DG5306X 3.5V), has only 120mcd brightness (substantially lower than 2400mcd), and features 565nm peak wavelength (yellow-green rather than pure green). Circuit redesign would be required, and visual indication color would differ from the original specification.

Q: What is the significance of T-1 3/4 package designation?

A: T-1 3/4 is a standard through-hole LED package designation equivalent to 5mm diameter lens size. All substitute parts listed use 5mm or T-1 3/4 package, ensuring mechanical compatibility with existing PCB layouts and through-hole mounting holes designed for the original DG5306X.

Q: Which substitute part offers the best supply availability?

A: HLMP-CM1G-350DD (Broadcom Limited) offers the highest inventory availability at 13534 pcs in stock, ensuring supply continuity for production requirements. This part also provides active product status with ongoing manufacturing support.

Q: How do I determine if a substitute part will work in my specific application?

A: Verify three critical parameters: (1) Forward voltage compatibility with your circuit design and series resistor value, (2) Brightness (millicandela) sufficient for required visibility, (3) Viewing angle appropriate for indicator placement and observation positions. All listed substitutes maintain green color, 5mm through-hole mounting, and 20mA test current compatibility with the original DG5306X.

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