OP240C Infrared Emitter - Equivalent & Substitute Parts

Part Overview

The OP240C is an infrared (IR) emitter operating at 890nm wavelength, designed for through-hole radial mounting applications. Manufactured by TT Electronics/Optek Technology, this component delivers 50mA forward current with a 1.8V typical forward voltage and 40° viewing angle. The OP240C is classified as obsolete, making identification of suitable substitute components essential for ongoing production and maintenance applications.

Substiute Parts

OP240C

TT Electronics/Optek TechnologyIn Stock: 1108OP240C Datasheet

Current PartRFQ

OP240B

TT Electronics/Optek TechnologyIn Stock: 6702OP240B Datasheet

MFR RecommendedRFQ

QEE122

onsemiIn Stock: 1774QEE122 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the OP240C is determined by the following critical parameters:

• Wavelength tolerance: 890nm ±10nm (880nm-900nm range acceptable)
• Forward current rating: 50mA minimum
• Forward voltage: 1.7V-1.9V range
• Mounting type: Through Hole required
• Package type: Radial configuration required
• Orientation: Side View required
• Operating temperature: -40°C ~ 100°C minimum range
• Compliance: ROHS3 and REACH requirements

The OP240B and QEE122 meet these substitution criteria with minor parameter variations within acceptable engineering tolerances for IR emitter applications.

Parameter Comparison

Engineering Selection Recommendations

OP240B is the primary substitute for OP240C applications. Both components are manufactured by TT Electronics/Optek Technology with identical electrical specifications (890nm wavelength, 50mA forward current, 1.8V forward voltage, 40° viewing angle). OP240B maintains active product status with higher inventory availability (6685 pcs vs. 1081 pcs for OP240C). Both components meet ROHS3 and REACH compliance requirements. The OP240B is the direct functional equivalent with no parameter deviations.

QEE122 (onsemi) serves as an alternative substitute with minor parameter variations. The wavelength is 880nm (10nm shorter than OP240C), forward voltage is 1.7V (0.1V lower), and viewing angle is 50° (10° wider). These variations remain within acceptable tolerances for most IR emitter applications. QEE122 is manufactured by onsemi and maintains active product status with 1700 pcs inventory. This component also meets ROHS3 and REACH compliance requirements.

For direct replacement without circuit redesign, OP240B is the preferred choice. QEE122 is suitable where the wider 50° viewing angle and 880nm wavelength are compatible with system requirements.

Frequently Asked Questions (FAQ)

Q: Can OP240B directly replace OP240C without circuit modifications?

A: Yes. OP240B is electrically and mechanically identical to OP240C. Both operate at 890nm wavelength with 50mA forward current, 1.8V forward voltage, and 40° viewing angle in radial through-hole configuration. No circuit redesign is required.

Q: What are the key differences between OP240B and QEE122?

A: QEE122 differs in three parameters: wavelength (880nm vs. 890nm), forward voltage (1.7V vs. 1.8V), and viewing angle (50° vs. 40°). These differences may affect system performance in wavelength-sensitive or narrow-angle applications. Both maintain identical 50mA forward current rating and through-hole radial mounting.

Q: Is QEE122 suitable for OP240C replacement in all applications?

A: QEE122 is suitable where the 880nm wavelength, 1.7V forward voltage, and 50° viewing angle are compatible with system design. Applications requiring precise 890nm wavelength or 40° viewing angle should use OP240B instead.

Q: Are all substitute parts ROHS3 and REACH compliant?

A: Yes. OP240B and QEE122 are both ROHS3 compliant and REACH unaffected, matching the compliance status of OP240C.

Q: What is the inventory status of substitute parts?

A: OP240B has 6685 pcs in stock (active product status). QEE122 has 1700 pcs in stock (active product status). OP240C has 1081 pcs remaining (obsolete status).

Q: Are the radial packages of all three components mechanically compatible?

A: Yes. OP240C, OP240B, and QEE122 all use radial through-hole packages with side-view orientation, ensuring mechanical compatibility in PCB layouts designed for radial IR emitters.