QED233 Infrared Emitter 940nm - Equivalent & Substitute Parts

Part Overview

The QED233 is a 940nm infrared emitter manufactured by onsemi, designed for through-hole mounting in radial 5mm (T 1 3/4) packages. This component operates at 100mA forward current with a radiant intensity of 10mW/sr and a forward voltage of 1.6V typical. The product is currently obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements.

Substiute Parts

QED233

onsemiIn Stock: 894QED233 Datasheet

Current PartRFQ

IR333/H0

Everlight Electronics Co LtdIn Stock: 723IR333/H0 Datasheet

SimilarRFQ

LTE-5208A

Lite-On Inc.In Stock: 10457LTE-5208A Datasheet

SimilarRFQ

WP7113SF4C

KingbrightIn Stock: 1642WP7113SF4C Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QED233 is determined by the following critical parameters: wavelength (940nm), maximum forward current (100mA), viewing angle (40°), and mounting type (through hole). The forward voltage and radiant intensity specifications define acceptable performance boundaries within the application context.

The substitute parts listed below maintain compatibility with the primary electrical and mechanical requirements:

• IR333/H0 (Everlight Electronics): Matches 940nm wavelength, 100mA current rating, and 40° viewing angle. Forward voltage ranges 1.2V–1.4V; radiant intensity is 5.6mW/sr @ 100mA.
• LTE-5208A (Lite-On Inc.): Matches 940nm wavelength, 100mA current rating, 40° viewing angle, and T 1 3/4 package form factor. Forward voltage is 1.2V; radiant intensity is 3.31mW/sr @ 20mA.
• WP7113SF4C (Kingbright): Operates at 880nm wavelength with 50mA maximum current and 20° viewing angle. This part deviates from the primary wavelength and current specifications and represents a limited-compatibility alternative.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Full Compatibility):

IR333/H0 and LTE-5208A are the preferred substitutes for the QED233. Both maintain the 940nm wavelength and 100mA current rating. IR333/H0 is available in bulk packaging with 703 units in stock. LTE-5208A offers the highest inventory availability (10,366 units) and maintains the T 1 3/4 package form factor. LTE-5208A carries RoHS3 compliance certification.

Secondary Substitute (Limited Compatibility):

WP7113SF4C operates at 880nm wavelength with a maximum current of 50mA, representing a deviation from the primary electrical specifications. This part is suitable only for applications where wavelength tolerance and reduced current operation are acceptable. WP7113SF4C is RoHS3 compliant and available in 1,572 units.

All substitute parts carry REACH Unaffected and EAR99 ECCN classifications, matching the regulatory status of the original QED233.

Frequently Asked Questions (FAQ)

Q: Can IR333/H0 directly replace QED233 in all applications?

A: IR333/H0 maintains electrical compatibility through matching wavelength (940nm), current rating (100mA), and viewing angle (40°). Forward voltage is lower (1.2V–1.4V vs. 1.6V), and radiant intensity is reduced (5.6mW/sr vs. 10mW/sr @ 100mA). Circuit design must accommodate these differences.

Q: What is the primary advantage of LTE-5208A as a substitute?

A: LTE-5208A preserves the T 1 3/4 package form factor of the QED233, ensuring mechanical compatibility with existing PCB layouts and mechanical assemblies. It maintains 940nm wavelength and 100mA current rating. Radiant intensity is lower at 3.31mW/sr @ 20mA.

Q: Is WP7113SF4C suitable for direct replacement?

A: WP7113SF4C operates at 880nm wavelength and 50mA maximum current, both differing from QED233 specifications. This part is not a direct replacement and is suitable only for applications where wavelength shift and reduced current operation are acceptable design parameters.

Q: What packaging formats are available for these substitutes?

A: IR333/H0 is supplied in bulk packaging. LTE-5208A is supplied in bulk packaging. WP7113SF4C is supplied in bag packaging. All three are through-hole mounted components with radial or T 1 3/4 package configurations.

Q: Are all substitutes RoHS compliant?

A: LTE-5208A and WP7113SF4C carry RoHS3 compliance certification. IR333/H0 compliance status is not specified in the provided data.