RPR-220PC30N Equivalent & Substitute Parts

Part Overview

The RPR-220PC30N is a reflective optical sensor manufactured by Rohm Semiconductor, packaged in a 4-DIP module with a 0.236" (6mm) sensing distance. This component functions as a phototransistor-based photointerrupter for reflective object detection applications. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring similar functionality.

Key Parameters

Parameter	RPR-220PC30N
Manufacturer	Rohm Semiconductor
Category	Optical Sensors
Sensing Distance	0.236" (6mm)
Sensing Method	Reflective
Output Type	Phototransistor
Voltage - Collector Emitter Breakdown (Max)	30 V
Current - Collector (Ic) (Max)	30 mA
Current - DC Forward (If) (Max)	30 mA
Response Time	10µs
Mounting Type	Through Hole
Package / Case	4-DIP Module
Operating Temperature	-25°C ~ 85°C
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the RPR-220PC30N is determined by the following critical parameters: sensing method (reflective), output type (phototransistor), mounting type (through hole), package type (4-DIP module), and electrical ratings (voltage and current specifications). Parts are grouped into two categories:

Primary Equivalent (MFR Recommended): RPR-220 maintains identical electrical specifications and sensing distance, differing only in package configuration (radial leads vs. 4-DIP module). This part is active and directly recommended by the manufacturer.

Secondary Substitutes (Similar Functionality): OPB706A, OPB706B, and OPB706C are reflective optical sensors with phototransistor output and 4-DIP module packaging. These parts operate within compatible electrical ranges but feature reduced sensing distances (0.050" / 1.27mm) and modified current specifications.

Parameter Comparison

Parameter	RPR-220PC30N	RPR-220	OPB706A	OPB706B	OPB706C
Manufacturer	Rohm Semiconductor	Rohm Semiconductor	TT Electronics/Optek Technology	onsemi	onsemi
Sensing Distance	0.236" (6mm)	0.236" (6mm)	0.050" (1.27mm)	0.05" (1.27mm)	Not specified
Sensing Method	Reflective	Reflective	Reflective	Reflective	Reflective
Output Type	Phototransistor	Phototransistor	Phototransistor	Phototransistor	Phototransistor
Voltage - Collector Emitter Breakdown (Max)	30 V	30 V	24 V	30 V	30 V
Current - Collector (Ic) (Max)	30 mA	30 mA	25 mA	200 µA	200 µA
Current - DC Forward (If) (Max)	30 mA	30 mA	50 mA	50 mA	50 mA
Response Time	10µs	10µs	Not specified	Not specified	Not specified
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	4-DIP Module	Radial - 4 Leads	4-DIP Module	4-DIP Module	4-DIP Module
Operating Temperature	-25°C ~ 85°C	-25°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Product Status	Obsolete	Active	Active	Obsolete	Obsolete
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	RoHS non-compliant

Engineering Selection Recommendations

For Direct Replacement (Preferred): RPR-220 is the manufacturer-recommended equivalent. It maintains identical electrical specifications (30 V breakdown, 30 mA collector current, 10µs response time) and sensing distance (0.236" / 6mm). The only difference is package configuration (radial leads instead of 4-DIP module). This part is active and ROHS3 compliant.

For Alternative Substitution: OPB706A is suitable when sensing distance reduction from 0.236" to 0.050" is acceptable. It maintains 4-DIP module packaging, is active, and ROHS3 compliant. Collector current is reduced to 25 mA, and voltage breakdown is 24 V. Operating temperature range extends to -40°C.

Not Recommended for New Designs: OPB706B and OPB706C are obsolete and RoHS non-compliant. OPB706B exhibits significantly reduced collector current (200 µA), limiting output drive capability. OPB706C lacks specified sensing distance data.

Frequently Asked Questions (FAQ)

Q: Can RPR-220 replace RPR-220PC30N directly? A: RPR-220 is electrically equivalent with identical specifications. The primary difference is package configuration: RPR-220 uses radial leads while RPR-220PC30N uses 4-DIP module. PCB layout and mounting method must accommodate the radial lead configuration.

Q: What is the impact of reduced sensing distance in OPB706A? A: OPB706A operates at 0.050" (1.27mm) sensing distance compared to RPR-220PC30N at 0.236" (6mm). This requires the reflective object to be positioned significantly closer to the sensor. Application geometry must support this reduced distance.

Q: Why are OPB706B and OPB706C not recommended? A: Both parts are obsolete and RoHS non-compliant. OPB706B has severely limited collector current (200 µA vs. 30 mA), reducing output drive capability. OPB706C lacks critical sensing distance specification.

Q: Is OPB706A compatible with the original operating temperature range? A: OPB706A extends the lower operating temperature to -40°C (vs. -25°C for RPR-220PC30N). The upper limit remains 85°C. This provides broader temperature coverage for applications requiring extended low-temperature operation.

Q: What compliance considerations apply to substitution? A: RPR-220 and OPB706A are both ROHS3 compliant. OPB706B and OPB706C are RoHS non-compliant and unsuitable for applications requiring regulatory compliance. Verify REACH and ECCN requirements for your specific application.

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