SML-LX2832IGC-TR Equivalent & Substitute Parts

Part Overview

The SML-LX2832IGC-TR is a dual-color surface mount LED indicator manufactured by Lumex Opto/Components Inc., featuring independent green and red LED elements in a 4-PLCC package. This component provides visual indication with 25mcd brightness for both colors and operates at 2.2V (green) and 2V (red) with a 120° viewing angle.

The SML-LX2832IGC-TR is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this dual-color LED indicator.

Key Parameters

Parameter	Value
Color Configuration	Green, Red Independent
Millicandela Rating	25mcd Green, 25mcd Red
Forward Voltage (Typ)	2.2V Green, 2V Red
Test Current	20mA Green, 20mA Red
Viewing Angle	120°
Package Type	4-PLCC
Mounting Type	Surface Mount
Lens Color	Colorless
Lens Transparency	Clear
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	3 (168 Hours)

Substitute Part Grouping Explanation

Substitute parts for the SML-LX2832IGC-TR are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

Color configuration (Green and Red independent elements)
Forward voltage range (2.0V to 2.2V for both colors)
Test current (20mA for both colors)
Viewing angle (120°)
Package type (4-PLCC surface mount)
Lens characteristics (colorless, clear)
RoHS3 compliance

Substitution Categories:

Direct Substitute (Active Status): SML-LX2835IGC-TR matches all critical electrical parameters and maintains the same manufacturer lineage. This part is active and available in higher inventory quantities.

Compatible Alternatives (Active Status): The Dialight 5977701207F and 5977701202F, along with Broadcom HSMF-A203-A00J1, satisfy the core electrical requirements and package specifications. These parts operate within the same voltage and current parameters, maintain 120° viewing angle, and are housed in 4-PLCC packages. Minor variations in millicandela ratings and wavelength specifications do not preclude functional substitution in standard indicator applications.

Parameter Comparison

Parameter	SML-LX2832IGC-TR	SML-LX2835IGC-TR	5977701207F	5977701202F	HSMF-A203-A00J1
Manufacturer	Lumex	Lumex	Dialight	Dialight	Broadcom
Product Status	Obsolete	Active	Active	Active	Active
Color	Green, Red	Green, Red	Green, Red	Green, Red	Green, Red
Configuration	Independent	Independent	Independent	Independent	Independent
Millicandela (Green)	25mcd	25mcd	16mcd	16mcd	8mcd
Millicandela (Red)	25mcd	25mcd	16mcd	16mcd	16mcd
Forward Voltage Green (Typ)	2.2V	2.2V	2.1V	2.1V	2.2V
Forward Voltage Red (Typ)	2V	2V	2V	2V	2.2V
Test Current	20mA	20mA	20mA	20mA	20mA
Viewing Angle	120°	120°	120°	120°	120°
Package Type	4-PLCC	4-SMD, J-Lead	4-PLCC	4-PLCC	4-PLCC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Lens Color	Colorless	Colorless	Colorless	Colorless	Colorless
Lens Transparency	Clear	Clear	Clear	Clear	Clear
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	3 (168 Hours)	3 (168 Hours)	2 (1 Year)	2 (1 Year)	2A (4 Weeks)
Height (Max)	2.10mm	1.80mm	1.90mm	1.90mm	2.10mm

Engineering Selection Recommendations

Primary Recommendation: SML-LX2835IGC-TR

The SML-LX2835IGC-TR is the preferred direct substitute for the obsolete SML-LX2832IGC-TR. This part maintains identical electrical specifications (2.2V green, 2V red, 25mcd brightness, 20mA test current) and is manufactured by the same supplier. The part is currently in active production status with substantial inventory availability (13,107 units). Both parts carry ROHS3 compliance and equivalent moisture sensitivity ratings. The primary difference is the package configuration (4-SMD J-Lead versus 4-PLCC) and reduced height (1.80mm versus 2.10mm), which may require PCB layout verification but does not affect electrical performance.

Secondary Alternatives: Dialight 5977701207F and 5977701202F

The Dialight microLED® series parts (5977701207F in Tape & Reel packaging and 5977701202F in Strip packaging) provide functional equivalence with the following considerations:

Electrical parameters remain within acceptable range (2.1V green, 2V red, 20mA test current)
Brightness is reduced (16mcd versus 25mcd for both colors)
Package type matches the original 4-PLCC configuration
Both parts are active with high inventory availability
MSL rating is improved (2 versus 3)
Wavelength specifications differ slightly but remain within standard LED color ranges

Tertiary Alternative: Broadcom HSMF-A203-A00J1

The Broadcom HSMF-A203-A00J1 maintains 4-PLCC package compatibility and identical test current (20mA). Electrical parameters are compatible (2.2V green, 2.2V red). This part is active with adequate inventory (5,342 units). Considerations include:

Reduced green brightness (8mcd versus 25mcd)
Improved MSL rating (2A versus 3)
Identical physical dimensions to the original part (3.20mm L x 2.80mm W x 2.10mm H)

All substitute parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements equivalent to the original component.

Frequently Asked Questions (FAQ)

Q: Can the SML-LX2835IGC-TR directly replace the SML-LX2832IGC-TR on existing PCBs?

A: The SML-LX2835IGC-TR has identical electrical specifications and is manufactured by Lumex. However, the package configuration differs (4-SMD J-Lead versus 4-PLCC). PCB footprint compatibility must be verified before implementation. The reduced height (1.80mm versus 2.10mm) may affect clearance in confined spaces.

Q: What is the impact of reduced millicandela ratings in substitute parts?

A: The Dialight 5977701207F and 5977701202F provide 16mcd brightness compared to the original 25mcd. This represents a 36% reduction in light output. Applications requiring maximum brightness should conduct luminosity testing. The Broadcom HSMF-A203-A00J1 provides 8mcd green (68% reduction) and 16mcd red (36% reduction), suitable only for applications with less stringent brightness requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (SML-LX2835IGC-TR, 5977701207F, 5977701202F, and HSMF-A203-A00J1) are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original SML-LX2832IGC-TR.

Q: What is the difference between the Dialight parts 5977701207F and 5977701202F?

A: Both parts are electrically and functionally identical. The primary difference is packaging: 5977701207F is supplied in Tape & Reel (TR) format with 28,885 units in stock, while 5977701202F is supplied in Strip format with 2,822 units in stock. Tape & Reel packaging is standard for automated assembly processes.

Q: How do moisture sensitivity levels affect component handling?

A: The original SML-LX2832IGC-TR has MSL 3 (168 hours). The Dialight parts have improved MSL 2 (1 year), and the Broadcom part has MSL 2A (4 weeks). Lower MSL ratings indicate better moisture resistance and longer shelf life. The Broadcom part requires more careful storage management due to its 4-week rating.

Q: Can substitute parts be mixed in the same production run?

A: Mixing substitute parts with different brightness levels (25mcd, 16mcd, or 8mcd) in the same application is not recommended unless the circuit design accommodates variable brightness. Consistent brightness across all indicator LEDs is typically required for uniform visual indication.

Q: What are the key electrical parameters that must match for substitution?

A: The critical parameters are forward voltage (2.0V to 2.2V range for both colors), test current (20mA), viewing angle (120°), and package type (4-PLCC or compatible surface mount). All listed substitutes meet these core requirements.

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