IR958-8C Infrared Emitter: Equivalent & Substitute Parts

Part Overview

The IR958-8C is an infrared (IR) emitter manufactured by Everlight Electronics Co Ltd, designed for applications requiring 950nm wavelength emission at 50mA forward current. This component features a radial through-hole mounting configuration with a 25° viewing angle and operates across the temperature range of -25°C to 85°C.

The IR958-8C is classified as obsolete. Identifying suitable substitute components is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for systems utilizing this emitter specification.

Substiute Parts

IR958-8C

Everlight Electronics Co LtdIn Stock: 26617IR958-8C Datasheet

Current PartRFQ

IR968-8C

Everlight Electronics Co LtdIn Stock: 53575IR968-8C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IR958-8C is determined by the following critical parameters:

Electrical Compatibility:

• Forward current rating (If Max): 50mA
• Forward voltage (Vf Typ): 1.2V
• Operating temperature range: -25°C to 85°C

Optical & Mechanical Compatibility:

• Wavelength: 950nm (primary specification)
• Viewing angle: 25°
• Orientation: Side View
• Package type: Radial
• Mounting configuration: Through Hole

The IR968-8C qualifies as a substitute based on matching electrical parameters (50mA, 1.2V, -25°C to 85°C operating range), identical mechanical form factor (radial through-hole), and compatible optical characteristics (25° viewing angle, side view orientation). The wavelength difference (940nm versus 950nm) represents a 10nm variation within the near-infrared spectrum, acceptable for applications where spectral tolerance permits operation across the 940-950nm band.

Parameter Comparison

Engineering Selection Recommendations

IR968-8C as Primary Substitute:

The IR968-8C is the designated substitute for the obsolete IR958-8C. Selection of this component is supported by the following engineering factors:

Product Status Alignment: The IR968-8C maintains active product status with Everlight Electronics Co Ltd, ensuring ongoing availability, manufacturing consistency, and supply chain support. The IR958-8C obsolete status necessitates transition to an active alternative.

Electrical Parameter Equivalence: Both components operate at identical forward current (50mA maximum) and forward voltage (1.2V typical) specifications, with matching operating temperature ranges (-25°C to 85°C). This ensures direct electrical compatibility in circuit designs without modification to current-limiting resistor values or thermal management strategies.

Mechanical & Optical Compatibility: Radial through-hole package configuration, 25° viewing angle, and side-view orientation are identical across both components, enabling direct mechanical substitution in PCB layouts and optical system designs.

Regulatory & Compliance Equivalence: Both components share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications, maintaining compliance with export control and tariff requirements.

Wavelength Consideration: The 10nm wavelength difference (950nm to 940nm) falls within the near-infrared spectrum. Applications with wavelength-specific requirements must confirm that 940nm operation is acceptable within system specifications. Applications with wavelength tolerance bands encompassing 940-950nm require no design modification.

Frequently Asked Questions (FAQ)

Q: Can the IR968-8C directly replace the IR958-8C in existing PCB designs?

A: Yes, for applications where 940nm wavelength operation is acceptable. The IR968-8C matches all electrical parameters (50mA, 1.2V, -25°C to 85°C), mechanical form factor (radial through-hole), and optical characteristics (25° viewing angle). No circuit modifications are required. Verify that your application's wavelength tolerance permits 940nm operation.

Q: What is the significance of the wavelength difference between 950nm and 940nm?

A: Both wavelengths operate in the near-infrared spectrum. The 10nm difference may affect spectral response in applications with narrow-band optical filters or wavelength-specific detectors. Applications designed for broadband near-infrared detection typically accommodate this variation. Consult your system's optical component specifications to confirm compatibility.

Q: Why is the IR958-8C obsolete?

A: The IR958-8C is classified as obsolete by Everlight Electronics Co Ltd. The IR968-8C represents the active product line continuation. Transition to the IR968-8C ensures access to current manufacturing, quality assurance, and supply chain support.

Q: Are there packaging differences between IR958-8C and IR968-8C?

A: The IR958-8C is supplied in standard packaging configuration. The IR968-8C is available in Tape & Reel (TR) packaging, which is standard for high-volume production environments. Both components use identical radial through-hole package geometry. Tape & Reel packaging does not affect component electrical or mechanical specifications.

Q: What compliance certifications apply to both components?

A: Both the IR958-8C and IR968-8C are classified under ECCN EAR99 (export control) and HTSUS 8541.41.0000 (tariff classification). Both components are REACH Unaffected. Regulatory compliance is maintained across the substitution.

Q: Are there inventory considerations for the IR968-8C?

A: The IR968-8C is currently in active production with 53,547 pieces in stock. The IR958-8C, classified as obsolete, has 26,531 pieces in remaining inventory. For new designs and ongoing production, the IR968-8C provides assured supply continuity.