SST-40-WCS-F50-N3752 Equivalent & Substitute Parts

Part Overview

The SST-40-WCS-F50-N3752 is a surface-mount LED from Luminus Devices Inc. in the SST-40-W series, featuring cool white light at 7500K color temperature. This component is classified as Active product status and is ROHS3 compliant. The substitute part SST-40-WCS-F50-N4651 shares the same mechanical and electrical base specifications but differs in color temperature rating and product status, making it a parametric equivalent for applications where the specific CCT variance is acceptable.

Substiute Parts

SST-40-WCS-F50-N3752

Luminus Devices Inc.In Stock: 687SST-40-WCS-F50-N3752 Datasheet

Current PartRFQ

SST-40-WCS-F50-N4651

Luminus Devices Inc.In Stock: 1089SST-40-WCS-F50-N4651 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The SST-40-WCS-F50-N4651 qualifies as a parametric equivalent based on the following criteria:

Identical Parameters:

• Manufacturer: Luminus Devices Inc.
• Series: SST-40-W
• Forward Voltage (Vf): 2.75V
• Test Current: 700mA
• Maximum Current: 5A
• Flux @ 85°C: 310lm (Typ)
• Lumens/Watt: 161 lm/W
• CRI: 70 (Typ)
• Viewing Angle: 120°
• Package / Case: 2020 (5050 Metric)
• Size / Dimension: 0.195" L x 0.195" W (4.95mm x 4.95mm)
• Height - Seated (Max): 0.113" (2.86mm)
• Thermal Resistance: 2.5°C/W
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• MSL: 1 (Unlimited)

Differing Parameters:

• CCT (K): 6500K (substitute) vs. 7500K (main part)
• Product Status: Obsolete (substitute) vs. Active (main part)
• Packaging: Cut Tape (CT) (substitute) vs. Tape & Reel (TR) (main part)

Substitution is valid where the 6500K color temperature is functionally acceptable in place of 7500K, and where packaging format compatibility with Cut Tape is confirmed for assembly processes.

Parameter Comparison

Engineering Selection Recommendations

The SST-40-WCS-F50-N3752 is the recommended primary selection due to Active product status, ensuring long-term availability and manufacturing support. Both parts maintain ROHS3 compliance and identical electrical and thermal characteristics.

The SST-40-WCS-F50-N4651 is classified as Obsolete and should be selected only when the 6500K color temperature specification is functionally equivalent to the 7500K requirement and when Cut Tape packaging is compatible with assembly processes. Obsolete status indicates limited future availability.

Frequently Asked Questions (FAQ)

Q: Can SST-40-WCS-F50-N4651 be used as a direct replacement for SST-40-WCS-F50-N3752?

A: Electrical and mechanical compatibility is confirmed. The primary difference is color temperature: 6500K versus 7500K. Substitution is valid only if the application accepts this CCT variance. Packaging format differs (Cut Tape vs. Tape & Reel), requiring process compatibility confirmation.

Q: What is the significance of the Obsolete product status for SST-40-WCS-F50-N4651?

A: Obsolete status indicates the part is no longer in active production. While existing inventory may be available, future procurement cannot be guaranteed. The Active status of SST-40-WCS-F50-N3752 provides superior long-term supply chain reliability.

Q: Are the thermal and optical characteristics identical between these parts?

A: Yes. Both parts share identical forward voltage (2.75V), test current (700mA), maximum current (5A), luminous flux (310lm @ 85°C), lumens per watt (161 lm/W), CRI (70), viewing angle (120°), and thermal resistance (2.5°C/W). The color temperature difference (6500K vs. 7500K) is the primary technical distinction.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR) and Cut Tape (CT) packaging formats do not affect electrical or optical performance. Selection depends on assembly equipment compatibility and process requirements.

Q: Are both parts RoHS compliant?

A: Yes. Both SST-40-WCS-F50-N3752 and SST-40-WCS-F50-N4651 are ROHS3 compliant with MSL rating of 1 (Unlimited).