Dialight 5510609 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5510609 is a 3mm T-1 through-hole right-angle LED circuit board indicator featuring a single green diffused lens with domed top. Rated for 5V operation at 10mA with a peak wavelength of 565nm and 19mcd brightness, this component is classified as obsolete. Due to its obsolete status, equivalent active alternatives from the same manufacturer series are available to ensure design continuity and supply chain reliability.

Key Parameters

Parameter	Value
Manufacturer	Dialight
Series	551
Color	Green
Wavelength - Peak	565nm
Configuration	Single
Current Rating	10mA
Millicandela Rating	19mcd
Viewing Angle	60°
Lens Type	Diffused, Tinted
Lens Style	Round with Domed Top
Lens Size	3mm, T-1
Voltage Rating	5V
Mounting Type	Through Hole, Right Angle
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8541.41.0000

Substitute Part Grouping Explanation

Substitution for the Dialight 5510609 is determined by strict equivalence across the following critical parameters:

Color: Green (565nm peak wavelength)
Configuration: Single LED
Current Rating: 10mA
Voltage Rating: 5V
Lens Type: Diffused, Tinted
Lens Style: Round with Domed Top
Lens Size: 3mm, T-1
Mounting Type: Through Hole, Right Angle
Millicandela Rating: 19mcd
Viewing Angle: 60°

All direct substitute parts maintain identical electrical and mechanical specifications. The primary distinction among substitutes is product status and packaging format. Direct substitutes from Dialight Series 551 are classified as active products, ensuring ongoing availability and supply chain support compared to the obsolete main part number.

Parameter Comparison

Part Number	Manufacturer	Product Status	Color	Current (mA)	Voltage (V)	Millicandela	Viewing Angle	Lens Type	Mounting	Inventory (Pcs)
5510609	Dialight	Obsolete	Green	10	5	19mcd	60°	Diffused, Tinted	Through Hole, Right Angle	965
5510601010F	Dialight	Active	Green	10	5	19mcd	60°	Diffused, Tinted	Through Hole, Right Angle	708
5510601F	Dialight	Active	Green	10	5	19mcd	60°	Diffused, Tinted	Through Hole, Right Angle	728
5510604F	Dialight	Active	Green	10	5	19mcd	60°	Diffused, Tinted	Through Hole, Right Angle	1026
5510607F	Dialight	Active	Green	10	5	19mcd	60°	Diffused, Tinted	Through Hole, Right Angle	1524
5510609F	Dialight	Active	Green	10	5	19mcd	60°	Diffused, Tinted	Through Hole, Right Angle	1745
SSF-LXH103GD-5V	Lumex Opto/Components Inc.	Active	Green	12	5	80mcd	8°	Diffused, Tinted	Through Hole, Right Angle	1102

Engineering Selection Recommendations

For direct replacement of the obsolete Dialight 5510609, select from the active Dialight Series 551 alternatives: 5510601010F, 5510601F, 5510604F, 5510607F, or 5510609F. All maintain identical electrical performance and mechanical form factor. Selection among these direct substitutes may be based on packaging requirements and current inventory availability.

The Lumex Opto/Components Inc. part SSF-LXH103GD-5V operates at the same 5V rating and shares the same lens style and mounting configuration. However, this part differs in current rating (12mA versus 10mA), millicandela output (80mcd versus 19mcd), and viewing angle (8° versus 60°). This part is suitable only when higher brightness and narrower viewing angle are acceptable design modifications.

All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original part.

Frequently Asked Questions (FAQ)

Q: Can I use 5510609F as a direct replacement for 5510609?

A: Yes. The 5510609F is electrically and mechanically equivalent to 5510609, with identical current rating (10mA), voltage (5V), brightness (19mcd), and viewing angle (60°). The primary difference is product status: 5510609F is active while 5510609 is obsolete.

Q: What is the difference between the Dialight substitutes (5510601010F, 5510601F, 5510604F, 5510607F, 5510609F)?

A: All five Dialight alternatives are electrically and mechanically identical to the main part 5510609. Differences exist only in base product numbering and packaging designation. Selection should be based on packaging requirements and inventory availability.

Q: Can I substitute the Lumex SSF-LXH103GD-5V for the Dialight 5510609?

A: The Lumex part shares the same 5V rating, lens style, and through-hole right-angle mounting. However, it operates at 12mA (versus 10mA), produces 80mcd brightness (versus 19mcd), and has an 8° viewing angle (versus 60°). This substitution requires design verification to confirm that higher current draw, increased brightness, and narrower viewing angle are acceptable for your application.

Q: Are all substitutes RoHS compliant?

A: All active Dialight substitutes (5510601010F, 5510601F, 5510604F, 5510607F, 5510609F) are ROHS3 compliant. The Lumex SSF-LXH103GD-5V is also ROHS3 compliant. The original 5510609 does not specify RoHS status.

Q: What is the MSL rating for these parts?

A: All parts listed carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

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