ASMT-JR30-ARS01 Equivalent & Substitute Parts

Part Overview

The ASMT-JR30-ARS01 is a 3W red LED (628nm) manufactured by Broadcom Limited in a 6-SMD, Flat Lead Exposed Pad surface mount package. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part delivers 54 lumens at 350mA test current with a forward voltage of 2.1V typical and supports maximum current of 700mA.

Key Parameters

Parameter	Value
Manufacturer	Broadcom Limited
Color	Red
Wavelength	628nm (620nm ~ 635nm)
Power Rating	3W
Current - Test	350mA
Current - Max	700mA
Voltage - Forward (Vf) Typical	2.1V
Luminous Flux @ Test Current	54lm (40lm ~ 67lm)
Lumens/Watt @ Test Current	73 lm/W
Viewing Angle	165°
Mounting Type	Surface Mount
Package / Case	6-SMD, Flat Lead Exposed Pad
Size / Dimension	0.157" L x 0.157" W (4.00mm x 4.00mm)
Height - Seated (Max)	0.077" (1.95mm)
Thermal Resistance	9°C/W
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	2A (4 Weeks)

Substitute Part Grouping Explanation

Substitution of the ASMT-JR30-ARS01 is determined by the following critical parameters:

Electrical Compatibility:

Red color wavelength range (620nm ~ 635nm acceptable)
Forward voltage (Vf) of 2.1V typical
Test current rating of 350mA with maximum current of 700mA
Luminous flux output within operational range (40lm ~ 67lm minimum)

Mechanical Compatibility:

Surface mount mounting type
Package footprint of 4.00mm x 4.00mm (1616 metric equivalent)
Height seated maximum of 0.077" (1.95mm)
Flat lead exposed pad configuration

Regulatory & Environmental:

RoHS3 compliance
ECCN EAR99 classification
HTSUS 8541.41.0000 tariff code

The ASMT-JR30-AST01 qualifies as a direct substitute based on matching electrical parameters, compatible package dimensions, and superior product status (Active vs. Obsolete).

Parameter Comparison

Parameter	ASMT-JR30-ARS01 (Main)	ASMT-JR30-AST01 (Substitute)
Manufacturer	Broadcom Limited	Broadcom Limited
Color	Red	Red
Wavelength	628nm (620nm ~ 635nm)	625nm
Current - Test	350mA	350mA
Current - Max	700mA	700mA
Voltage - Forward (Vf) Typical	2.1V	2.1V
Luminous Flux @ Test Current	54lm (40lm ~ 67lm)	58lm (52lm ~ 87lm)
Lumens/Watt @ Test Current	73 lm/W	79 lm/W
Viewing Angle	165°	165°
Mounting Type	Surface Mount	Surface Mount
Size / Dimension	0.157" L x 0.157" W (4.00mm x 4.00mm)	0.157" L x 0.157" W (4.00mm x 4.00mm)
Height - Seated (Max)	0.077" (1.95mm)	0.077" (1.95mm)
Product Status	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	2A (4 Weeks)	1 (Unlimited)

Engineering Selection Recommendations

The ASMT-JR30-AST01 is the manufacturer-recommended substitute for the obsolete ASMT-JR30-ARS01. Both components are manufactured by Broadcom Limited and maintain identical electrical ratings (350mA test current, 2.1V forward voltage, 700mA maximum current) and mechanical compatibility (4.00mm x 4.00mm footprint, 1.95mm maximum height).

The substitute part offers improved product lifecycle status (Active vs. Obsolete), enhanced moisture sensitivity rating (MSL 1 Unlimited vs. MSL 2A 4 Weeks), and superior luminous efficiency (79 lm/W vs. 73 lm/W). The wavelength shift from 628nm to 625nm remains within acceptable red spectrum parameters for general lighting applications.

Both parts maintain ROHS3 compliance and identical tariff classification (HTSUS 8541.41.0000), supporting regulatory continuity in production environments.

Frequently Asked Questions (FAQ)

Q: Can ASMT-JR30-AST01 be used as a direct replacement for ASMT-JR30-ARS01 in existing designs?

A: Yes. Both parts share identical electrical parameters (350mA test current, 2.1V forward voltage, 700mA maximum current), matching package dimensions (4.00mm x 4.00mm), and equivalent height specifications (1.95mm maximum). PCB layouts and circuit designs require no modification.

Q: What is the wavelength difference between these parts?

A: The main part operates at 628nm (620nm ~ 635nm range) while the substitute operates at 625nm. Both wavelengths fall within the red spectrum and are suitable for applications requiring red LED illumination. The 3nm difference is not perceptible in typical lighting applications.

Q: Why is the ASMT-JR30-ARS01 listed as obsolete?

A: Product obsolescence is determined by the manufacturer based on production lifecycle decisions. The ASMT-JR30-AST01 represents the active continuation of this product line from Broadcom Limited.

Q: Are there differences in moisture handling between these parts?

A: Yes. The main part has MSL 2A (4 Weeks) while the substitute has MSL 1 (Unlimited). The substitute part offers superior moisture resistance and longer shelf life without requiring controlled storage conditions.

Q: Do both parts have the same thermal characteristics?

A: The main part specifies thermal resistance of 9°C/W. This parameter is not provided for the substitute part in the available documentation. Thermal performance should be verified against application requirements.

Q: Are both parts RoHS compliant?

A: Yes. Both ASMT-JR30-ARS01 and ASMT-JR30-AST01 are ROHS3 compliant and carry identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications.

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