VFHR1104LS-TR Equivalent & Substitute Parts

Part Overview

The VFHR1104LS-TR is a red LED indication component manufactured by Stanley Electric Co, designed for surface mount applications in 2-PLCC package configuration. This part operates at 2V forward voltage with 140mcd brightness rating and 632nm dominant wavelength, suitable for discrete indicator applications requiring clear lens red LEDs.

The VFHR1104LS-TR maintains Active product status with full RoHS3 compliance and REACH unaffected classification. Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical dimensions, and package specifications that permit direct functional replacement in circuit designs.

Substiute Parts

VFHR1104LS-TR

Stanley Electric CoIn Stock: 718VFHR1104LS-TR Datasheet

Current PartRFQ

AA3528SRS

KingbrightIn Stock: 847AA3528SRS Datasheet

Parametric EquivalentRFQ

LS T676-R1S1-1-Z

ams-OSRAM USA INC.In Stock: 46092LS T676-R1S1-1-Z Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the VFHR1104LS-TR are qualified based on the following criteria:

Electrical Compatibility: Forward voltage (Vf) within acceptable tolerance of 2V nominal, test current of 20mA, and wavelength in the red spectrum (630-660nm range).

Mechanical Compatibility: 2-PLCC package configuration, 2.40mm diameter round lens with flat top, dimensions of 3.20mm L x 2.80mm W, and maximum height of 2.10mm.

Optical Compatibility: Clear lens transparency, 120° viewing angle, and brightness rating suitable for indication applications.

Regulatory Compliance: RoHS3 compliance and REACH unaffected status required for all substitutes.

Two substitute parts meet these criteria: LS T676-R1S1-1-Z (ams-OSRAM USA INC.) and AA3528SRS (Kingbright).

Parameter Comparison

Engineering Selection Recommendations

LS T676-R1S1-1-Z (ams-OSRAM USA INC.) is the primary substitute for VFHR1104LS-TR. Both parts maintain Active product status, identical forward voltage of 2V, and matching mechanical dimensions. The LS T676-R1S1-1-Z offers higher brightness (168mcd versus 140mcd) and superior moisture sensitivity rating (MSL 2 for 1 Year versus MSL 2A for 4 Weeks). Wavelength characteristics are closely aligned (633nm dominant, 645nm peak). This part is suitable for direct replacement in new designs and existing applications.

AA3528SRS (Kingbright) qualifies as a functional substitute with matching mechanical and optical specifications. However, this part carries Obsolete product status and should not be selected for new designs. The forward voltage is 1.85V, requiring circuit verification for voltage-sensitive applications. Moisture sensitivity rating is MSL 3 (168 Hours), indicating lower environmental tolerance compared to the primary part. This substitute is limited to legacy system maintenance or applications with extended component qualification timelines.

Frequently Asked Questions (FAQ)

Q: Can LS T676-R1S1-1-Z replace VFHR1104LS-TR in existing designs without circuit modification?

A: Yes. Both parts share identical forward voltage (2V), test current (20mA), package configuration (2-PLCC), and mechanical dimensions (3.20mm L x 2.80mm W x 2.10mm H max). The higher brightness rating (168mcd versus 140mcd) does not require circuit changes for indication applications.

Q: What is the primary difference between the two substitute parts?

A: LS T676-R1S1-1-Z maintains Active product status with superior moisture sensitivity (MSL 2 for 1 Year), while AA3528SRS is Obsolete with lower moisture tolerance (MSL 3 for 168 Hours). Forward voltage differs: LS T676-R1S1-1-Z at 2V matches the original part, while AA3528SRS operates at 1.85V.

Q: Is AA3528SRS suitable for new product designs?

A: No. AA3528SRS carries Obsolete product status and should not be selected for new designs. This part is limited to replacement applications in existing systems where component qualification has already been completed.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. VFHR1104LS-TR, LS T676-R1S1-1-Z, and AA3528SRS all maintain ROHS3 Compliant status and REACH Unaffected classification.

Q: What packaging formats are available for these parts?

A: VFHR1104LS-TR is supplied in Tape & Reel (TR) format. LS T676-R1S1-1-Z and AA3528SRS are available in Cut Tape (CT) & Digi-Reel® format. Packaging selection depends on assembly process requirements and order quantities.

Q: How do wavelength specifications affect substitution?

A: All three parts operate in the red spectrum with dominant wavelengths between 632nm and 640nm. These wavelengths are visually indistinguishable for indication applications. Peak wavelength variations (640nm to 660nm) do not affect functional performance in standard LED indicator circuits.