Equivalent & Substitute Parts for F5G1 Infrared Emitter

Part Overview

The F5G1 is an infrared (IR) emitter manufactured by onsemi, designed for applications requiring 880nm wavelength emission at 50mA forward current. This component features a radial, side-view package configuration with a typical forward voltage of 1.7V and radiant intensity of 0.6mW/sr at 20mA operation.

The F5G1 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

F5G1

onsemiIn Stock: 1041F5G1 Datasheet

Current PartRFQ

SEP8706-002

Honeywell Sensing and Productivity SolutionsIn Stock: 1171SEP8706-002 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the F5G1 is determined by strict alignment of the following electrical and mechanical parameters:

• Wavelength: 880nm (exact match required)
• Forward current rating: 50mA (maximum rating must be met or exceeded)
• Forward voltage: 1.7V typical (operating point compatibility)
• Package type: Radial configuration with side-view orientation (mechanical fit and PCB compatibility)
• Mounting method: Through-hole (assembly process compatibility)

The SEP8706-002 manufactured by Honeywell Sensing and Productivity Solutions meets these core substitution criteria. Both components operate at identical wavelength, current, and voltage specifications with compatible through-hole radial packaging. Differences in radiant intensity measurement units (mW/sr vs. mW/cm²) and viewing angle do not preclude substitution when the primary functional requirements are met.

Parameter Comparison

Engineering Selection Recommendations

Both the F5G1 and SEP8706-002 are classified as obsolete products. Selection between these components should be based on the following factors:

Compliance Requirements: The SEP8706-002 carries RoHS Compliant certification, which may be required for applications subject to RoHS directives. The F5G1 does not specify RoHS status.

Operating Temperature Range: The F5G1 supports -55°C to 100°C operation, providing a wider temperature envelope than the SEP8706-002 (-40°C to 85°C). Applications requiring extended low-temperature operation should prioritize the F5G1 if available.

Viewing Angle Consideration: The F5G1 provides a 70° viewing angle compared to the SEP8706-002 at 50°. Applications with specific beam divergence requirements should account for this difference.

Availability: Current inventory shows 1063 units of SEP8706-002 available versus 974 units of F5G1. Supply chain considerations may influence component selection.

Frequently Asked Questions (FAQ)

Q: Can SEP8706-002 directly replace F5G1 in existing designs?

A: Yes, for applications where the operating temperature range of -40°C to 85°C is acceptable and viewing angle of 50° meets functional requirements. Both components share identical wavelength (880nm), forward current (50mA), forward voltage (1.7V), and through-hole radial packaging.

Q: What is the significance of the different radiant intensity measurements?

A: The F5G1 specifies radiant intensity as 0.6mW/sr while SEP8706-002 uses 0.45mW/cm². These represent different measurement methodologies (solid angle vs. area). Direct numerical comparison is not valid; however, both components are rated for the same forward current and wavelength, indicating functional equivalence for standard IR emitter applications.

Q: Are there mechanical compatibility concerns?

A: Both components use radial, side-view through-hole packages. Mechanical fit and PCB layout compatibility are equivalent. No modifications to board design or assembly processes are required.

Q: Which component should be selected for new designs?

A: Both components are obsolete. For new designs, consultation with component suppliers is necessary to identify current-production IR emitters meeting the same electrical specifications (880nm, 50mA, 1.7V).

Q: Does RoHS compliance affect substitution?

A: RoHS compliance is a regulatory requirement for certain markets and applications. If RoHS certification is mandatory, SEP8706-002 is the appropriate selection. If not required, either component may be used based on availability and temperature range requirements.