TLWR8903 Equivalent & Substitute Parts

Part Overview

The TLWR8903 is a red 615nm LED indication component manufactured by Vishay Semiconductor Opto Division, part of the TELUX™ series. This through-hole mounted discrete LED operates at 2.2V forward voltage with a 700mcd brightness rating and 90° viewing angle. The component is currently obsolete, making identification of equivalent substitute parts essential for ongoing production support, maintenance, and design continuity in applications requiring red LED indication functionality.

Substiute Parts

TLWR8903

Vishay Semiconductor Opto DivisionIn Stock: 1137TLWR8903 Datasheet

Current PartRFQ

TLWR8901

Vishay Semiconductor Opto DivisionIn Stock: 2874TLWR8901 Datasheet

Parametric EquivalentRFQ

TLWR8902

Vishay Semiconductor Opto DivisionIn Stock: 1037TLWR8902 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLWR8903 are determined by strict equivalence across the following critical parameters:

• Wavelength specifications: Dominant wavelength 615nm and peak wavelength 624nm
• Electrical characteristics: Forward voltage 2.2V and test current 70mA
• Optical performance: 700mcd brightness rating and 90° viewing angle
• Physical form factor: 4-DIP (0.200", 5.08mm) package with identical dimensions (7.62mm L x 7.62mm W, 6.40mm max height)
• Lens configuration: Round with domed top, colorless, clear transparency
• Compliance standards: ROHS3 compliance, REACH unaffected status, MSL 1 rating

The TLWR8901 and TLWR8902 meet all these electrical and mechanical parameters identically to the TLWR8903, establishing them as parametric equivalents. The primary distinction between these parts is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

Both TLWR8901 and TLWR8902 are direct parametric equivalents to the obsolete TLWR8903. Selection between these active alternatives is based on product availability and compliance status:

TLWR8901: Active product status with 2858 units in stock. Maintains full ROHS3 compliance and REACH unaffected designation. Recommended as primary substitute for new designs and ongoing production support.

TLWR8902: Active product status with 983 units in stock. Maintains full ROHS3 compliance and REACH unaffected designation. Available as secondary substitute option.

Both parts are suitable for direct replacement in applications currently using the TLWR8903, with no circuit modifications required due to identical electrical and mechanical specifications.

Frequently Asked Questions (FAQ)

Q: Can TLWR8901 or TLWR8902 be used as direct replacements for TLWR8903 in existing designs?

A: Yes. Both substitute parts are parametric equivalents with identical forward voltage (2.2V), test current (70mA), wavelength specifications (615nm dominant, 624nm peak), brightness rating (700mcd), viewing angle (90°), and 4-DIP package dimensions. No circuit redesign is required.

Q: What is the difference between TLWR8901 and TLWR8902?

A: Both parts are electrically and mechanically identical. The primary differences are product status (both active) and current inventory levels. TLWR8901 has 2858 units in stock; TLWR8902 has 983 units in stock.

Q: Are these parts compatible with through-hole PCB assembly processes?

A: Yes. All three parts use identical through-hole mounting type with 4-DIP (0.200", 5.08mm) package configuration and matching physical dimensions (7.62mm L x 7.62mm W, 6.40mm max height).

Q: Do the substitute parts meet the same compliance requirements as TLWR8903?

A: Yes. TLWR8901 and TLWR8902 maintain identical ROHS3 compliance, REACH unaffected status, and MSL 1 (unlimited) moisture sensitivity rating.

Q: Why is TLWR8903 listed as obsolete?

A: TLWR8903 is obsolete product status. TLWR8901 and TLWR8902 are active alternatives from the same manufacturer and series, providing continued availability for this LED indication function.