TSAL7400 Equivalent & Substitute Parts

Part Overview

The TSAL7400 is an infrared (IR) emitter operating at 940nm wavelength, designed for through-hole radial mounting applications. This component is classified as obsolete, which necessitates identification of active equivalent parts to maintain design continuity and ensure supply chain availability. The TSAL7400 delivers 25mW/sr radiant intensity at 100mA forward current with a 50° viewing angle and 1.35V typical forward voltage.

Substiute Parts

TSAL7400

Vishay Semiconductor Opto DivisionIn Stock: 2321TSAL7400 Datasheet

Current PartRFQ

TSAL6200

Vishay Semiconductor Opto DivisionIn Stock: 563868TSAL6200 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSAL7400 is based on the following critical parameters that must remain constant or compatible:

• Wavelength: 940nm (infrared spectrum requirement)
• Forward current rating: 100mA maximum
• Forward voltage: 1.35V typical
• Mounting type: Through hole radial configuration
• Operating temperature range: -40°C to 85°C
• RoHS3 compliance and regulatory status

The TSAL6200 qualifies as a direct substitute based on matching wavelength, current rating, voltage, mounting type, temperature range, and compliance certifications. Variations in radiant intensity (40mW/sr vs. 25mW/sr) and viewing angle (34° vs. 50°) are within acceptable substitution parameters for this component category, as the substitute provides equal or superior performance in radiant intensity while maintaining electrical and thermal compatibility.

Parameter Comparison

Engineering Selection Recommendations

The TSAL6200 is the recommended substitute for the obsolete TSAL7400. Both components are manufactured by Vishay Semiconductor Opto Division and maintain identical electrical specifications for wavelength, forward current, and forward voltage. The TSAL6200 is currently in active production status, ensuring long-term supply availability and design continuity.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and legacy system maintenance. The TSAL6200 provides superior radiant intensity performance (40mW/sr versus 25mW/sr), making it a direct functional upgrade while maintaining backward compatibility in circuit applications designed for the TSAL7400.

Frequently Asked Questions (FAQ)

Q: Can the TSAL6200 directly replace the TSAL7400 in existing designs?

A: Yes. Both components share identical wavelength (940nm), forward current rating (100mA), forward voltage (1.35V), and operating temperature range (-40°C to 85°C). The TSAL6200 provides higher radiant intensity, which is compatible with applications designed for the TSAL7400.

Q: What is the difference in viewing angle between these parts?

A: The TSAL7400 has a 50° viewing angle, while the TSAL6200 has a 34° viewing angle. The narrower viewing angle of the TSAL6200 concentrates radiant intensity in a smaller field, which may affect optical system design depending on application requirements.

Q: Are there packaging differences between TSAL7400 and TSAL6200?

A: Both use radial through-hole mounting. The TSAL6200 is specified as 5mm diameter (T 1 3/4) radial package. Physical dimensions should be verified against PCB layout requirements before implementation.

Q: Do both parts meet current regulatory compliance standards?

A: Yes. Both TSAL7400 and TSAL6200 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Why is the TSAL7400 listed as obsolete?

A: The TSAL7400 has been discontinued by the manufacturer. The TSAL6200 is the active equivalent part maintained in current production inventory.