TLWR8601 Equivalent & Substitute Parts

Part Overview

The TLWR8601 is a red LED indication component manufactured by Vishay Semiconductor Opto Division, designed for through-hole mounting applications. This discrete 2.2V LED operates at 615nm dominant wavelength with a 4550mcd brightness rating and 30° viewing angle. The component is classified as obsolete, making identification of compatible substitute parts essential for ongoing production and maintenance applications requiring equivalent red LED indication functionality in 4-DIP packaging.

Substiute Parts

TLWR8601

Vishay Semiconductor Opto DivisionIn Stock: 949TLWR8601 Datasheet

Current PartRFQ

CP41A-RDS-CL0N0JJ4

CreeLED, Inc.In Stock: 1105CP41A-RDS-CL0N0JJ4 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the TLWR8601 is determined by the following critical parameters:

Electrical Compatibility:

• Forward voltage (Vf) within acceptable operating range
• Test current matching or compatible with circuit design
• Wavelength in red spectrum range (615-625nm acceptable for red indication)
• Brightness rating (mcd) sufficient for intended application

Mechanical Compatibility:

• Through-hole mounting type
• 4-DIP package footprint (0.200", 5.08mm pitch)
• Physical dimensions compatible with PCB layout
• Round domed lens style for standard indication applications

Environmental & Compliance:

• RoHS compliance status
• Moisture sensitivity level
• REACH compliance status

The CP41A-RDS-CL0N0JJ4 qualifies as a substitute based on matching electrical operating parameters, identical mounting type, compatible package footprint, and equivalent environmental compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The CP41A-RDS-CL0N0JJ4 is suitable as a substitute for the obsolete TLWR8601 based on the following factors:

Product Status: The CP41A-RDS-CL0N0JJ4 maintains active product status with current manufacturing availability, addressing the obsolescence of the TLWR8601.

Compliance Certifications: Both components meet RoHS compliance requirements and REACH unaffected status, ensuring regulatory alignment for applications requiring these certifications.

Electrical Parameters: Forward voltage differs by 0.1V (2.2V vs 2.3V), which is within typical circuit tolerance for LED indication applications. Test current remains identical at 70mA. The substitute provides increased brightness (6565mcd vs 4550mcd) and wider viewing angle (40° vs 30°), which are compatible enhancements for indication applications.

Mechanical Compatibility: Package footprint remains compatible (4-DIP vs 4-EDIP, both 0.200" pitch). Physical dimensions are nearly identical with negligible differences (7.60mm vs 7.62mm length/width, 6.80mm vs 6.40mm height), suitable for standard PCB layouts.

Wavelength: Dominant wavelength shift from 615nm to 625nm remains within the red spectrum range for indication purposes.

Frequently Asked Questions (FAQ)

Q: Can the CP41A-RDS-CL0N0JJ4 directly replace the TLWR8601 without circuit modifications?

A: Yes, for standard LED indication applications. The electrical parameters are compatible within typical circuit tolerances. The 0.1V forward voltage difference and increased brightness are generally acceptable for indication circuits. Verify specific circuit requirements if the application has strict brightness or voltage constraints.

Q: What is the difference between 4-DIP and 4-EDIP packaging?

A: Both are 4-pin through-hole packages with 0.200" (5.08mm) pitch. The EDIP designation indicates an enhanced DIP variant. The footprint compatibility allows direct PCB mounting without layout changes.

Q: Does the higher brightness rating (6565mcd vs 4550mcd) affect compatibility?

A: The increased brightness is compatible with indication applications. If the original circuit was designed with current-limiting resistors for the 4550mcd rating, the brighter substitute may appear more intense. Circuit resistor values can be adjusted if brightness reduction is required.

Q: Are there compliance differences between the two components?

A: Both components meet RoHS compliance and REACH unaffected status. The TLWR8601 is ROHS3 compliant while the CP41A-RDS-CL0N0JJ4 is RoHS compliant. Both meet current regulatory requirements for electronic component applications.

Q: What is the significance of the 10° viewing angle difference?

A: The CP41A-RDS-CL0N0JJ4 provides a wider 40° viewing angle compared to the TLWR8601's 30° angle. This wider angle is compatible with applications requiring broader visibility and is generally considered an enhancement for indication purposes.