APDS-9102-L22 Equivalent & Substitute Parts

Part Overview

The APDS-9102-L22 is a reflective optical sensor manufactured by Broadcom Limited, designed for proximity detection applications requiring a 0.315" (8mm) sensing distance. This component operates as a phototransistor in a 4-DIP through-hole module configuration. The product is currently obsolete, making identification of functionally equivalent alternatives essential for system redesign, legacy product support, and component sourcing in applications where the original part is no longer available.

Substiute Parts

APDS-9102-L22

Broadcom LimitedIn Stock: 835APDS-9102-L22 Datasheet

Current PartRFQ

HSDL-9100-021

Broadcom LimitedIn Stock: 8693HSDL-9100-021 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the APDS-9102-L22 is determined by the following critical parameters:

• Sensing Method: Must remain reflective optical sensing
• Manufacturer: Broadcom Limited maintains design continuity and compatibility
• Functional Output: Phototransistor or photodiode output for proximity detection
• Electrical Ratings: Collector current and forward current capabilities must meet or exceed application requirements
• Operating Temperature: Must support the required thermal range

The HSDL-9100-021 qualifies as a manufacturer-recommended substitute based on identical sensing method (reflective), same manufacturer (Broadcom Limited), and compatible output characteristics. However, this substitute introduces a package change from through-hole DIP to surface-mount SMD and reduces the sensing distance from 0.315" (8mm) to 0.197" (5mm), requiring circuit board redesign and application validation.

Parameter Comparison

Engineering Selection Recommendations

The HSDL-9100-021 is the manufacturer-recommended substitute for the obsolete APDS-9102-L22. Selection of this alternative requires evaluation of the following factors:

Product Status: The APDS-9102-L22 is obsolete with no ongoing manufacturing or support. The HSDL-9100-021 maintains active production status, ensuring long-term component availability and supply chain stability.

Compliance & Certifications: The HSDL-9100-021 carries ROHS3 compliance certification, meeting current environmental and regulatory requirements. Both parts maintain REACH Unaffected status and EAR99 export classification.

Electrical Compatibility: The HSDL-9100-021 provides higher current ratings (100 mA collector and forward current versus 20 mA and 50 mA respectively), offering improved headroom for circuit design. The extended operating temperature range (-40°C ~ 85°C versus -35°C ~ 65°C) supports broader application environments.

Physical & Functional Differences: The transition from through-hole DIP to surface-mount SMD packaging requires printed circuit board redesign. The reduced sensing distance (0.197" versus 0.315") necessitates mechanical repositioning of reflective targets and application-level validation to confirm adequate sensor response.

Frequently Asked Questions (FAQ)

Q: Can the HSDL-9100-021 directly replace the APDS-9102-L22 without circuit modifications?

A: No. The HSDL-9100-021 requires circuit board redesign due to package change from through-hole DIP to surface-mount SMD. Additionally, the reduced sensing distance (5mm versus 8mm) requires mechanical repositioning of reflective targets and functional validation.

Q: What are the key differences between phototransistor and photodiode output types?

A: The APDS-9102-L22 uses phototransistor output, providing amplified current response. The HSDL-9100-021 uses photodiode output, requiring external transimpedance amplification. Circuit topology changes are necessary to accommodate this functional difference.

Q: Is the HSDL-9100-021 suitable for applications requiring 0.315" (8mm) sensing distance?

A: No. The HSDL-9100-021 operates at 0.197" (5mm) sensing distance. Applications requiring the original 8mm range must either accept reduced sensing distance or pursue alternative component sources.

Q: What compliance advantages does the HSDL-9100-021 provide?

A: The HSDL-9100-021 is ROHS3 compliant, meeting current environmental regulations. Both parts maintain REACH Unaffected status. The substitute supports modern manufacturing and supply chain requirements.

Q: Are there inventory considerations for the APDS-9102-L22?

A: The APDS-9102-L22 is obsolete with limited remaining inventory (771 pieces reported). The HSDL-9100-021 maintains active production with substantial inventory availability (8617 pieces reported), ensuring reliable long-term sourcing.