CSL0902BT1 Equivalent & Substitute Parts

Part Overview

The CSL0902BT1 is an active production blue LED indicator in 0603 (1608 Metric) surface mount package manufactured by Rohm Semiconductor. This discrete LED operates at 3.3V forward voltage with a dominant wavelength of 470nm and delivers 360 millicandela brightness. The component is designed for indication applications requiring a clear lens with rectangular domed top configuration. Substitute parts are identified to support procurement continuity, inventory management, and design flexibility while maintaining electrical and mechanical compatibility.

Substiute Parts

CSL0902BT1

Rohm SemiconductorIn Stock: 2264CSL0902BT1 Datasheet

Current PartRFQ

CSL0902BT1C

Rohm SemiconductorIn Stock: 2445CSL0902BT1C Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CSL0902BT1 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Forward voltage (Vf): 3.3V
• Test current: 20mA
• Dominant wavelength: 470nm (blue spectrum)
• Brightness: 360mcd

Mechanical Parameters:

• Package type: 0603 (1608 Metric)
• Physical dimensions: 1.60mm L x 0.80mm W
• Maximum height: 1.34mm
• Lens configuration: Rectangle with domed top, colorless, clear transparency
• Mounting type: Surface mount

Compliance Parameters:

• RoHS3 compliance
• MSL rating: 3 (168 Hours)
• Product status: Active

The CSL0902BT1C is identified as a parametric equivalent substitute. This part maintains identical electrical performance, mechanical form factor, and environmental compliance specifications. The primary distinction is the addition of automotive-grade qualification (AEC-Q102) in the substitute part, which represents an enhanced qualification level rather than a functional difference.

Parameter Comparison

Engineering Selection Recommendations

CSL0902BT1 Selection Criteria: The standard CSL0902BT1 is appropriate for general indication applications where automotive qualification is not required. This part maintains active production status and full RoHS3 compliance. Selection is suitable for consumer electronics, industrial control panels, and general-purpose LED indication circuits operating within standard environmental specifications.

CSL0902BT1C Selection Criteria: The CSL0902BT1C is the automotive-qualified variant, carrying AEC-Q102 certification. This part is required for automotive applications, transportation systems, and environments where enhanced reliability qualification is mandated by design specifications or customer requirements. The automotive grade represents a higher qualification standard while maintaining identical electrical and mechanical performance to the standard variant.

Interchangeability: Both parts are electrically and mechanically interchangeable within the 0603 package footprint. The CSL0902BT1C can substitute for CSL0902BT1 in any application. The reverse substitution (CSL0902BT1 for CSL0902BT1C) is valid only when automotive qualification is not a design requirement.

Frequently Asked Questions (FAQ)

Q: Can CSL0902BT1C replace CSL0902BT1 in my design?

A: Yes. The CSL0902BT1C is electrically and mechanically identical to the CSL0902BT1. Both parts share the same forward voltage (3.3V), test current (20mA), brightness (360mcd), wavelength (470nm), and 0603 package dimensions. The CSL0902BT1C includes automotive-grade qualification (AEC-Q102), which does not restrict its use in standard applications.

Q: Can CSL0902BT1 replace CSL0902BT1C in automotive applications?

A: No. Automotive applications requiring AEC-Q102 qualification must use the CSL0902BT1C. The standard CSL0902BT1 does not carry automotive qualification and is not approved for automotive use.

Q: Are there any PCB layout differences between these parts?

A: No. Both parts use the identical 0603 (1608 Metric) package with matching footprint dimensions (1.60mm L x 0.80mm W) and maximum height (1.34mm). PCB layouts, solder pad patterns, and assembly processes are interchangeable.

Q: What is the difference between CSL0902BT1 and CSL0902BT1C?

A: The primary difference is qualification level. The CSL0902BT1C carries AEC-Q102 automotive qualification, while the CSL0902BT1 is a standard-grade part. All electrical parameters, optical characteristics, and mechanical specifications are identical.

Q: Are both parts RoHS3 compliant?

A: Yes. Both CSL0902BT1 and CSL0902BT1C are ROHS3 compliant with identical moisture sensitivity levels (MSL 3, 168 Hours).

Q: What is the dominant wavelength specification?

A: Both parts have a dominant wavelength of 470nm, which defines the blue color spectrum for these LEDs.

Q: Can these parts be used interchangeably in reflow soldering processes?

A: Yes. Both parts share identical MSL ratings (3, 168 Hours) and package specifications, allowing identical reflow soldering profiles and handling procedures.