OPB828C Equivalent & Substitute Parts

Part Overview

The OPB828C is an optical sensor manufactured by TT Electronics/Optek Technology, designed as a through-beam phototransistor with PCB mount configuration. This component operates at a sensing distance of 0.125" (3.18mm) and is classified as an unamplified optical sensor. The part is currently active in production with 961 units in stock. Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and environmental operating parameters to ensure direct functional replacement in circuit applications.

Key Parameters

Parameter	OPB828C Specification
Sensing Distance	0.125" (3.18mm)
Sensing Method	Through-Beam
Output Configuration	Phototransistor
Current - DC Forward (If) Max	50 mA
Current - Collector (Ic) Max	30 mA
Voltage - Collector Emitter Breakdown Max	30 V
Operating Temperature Range	-40°C ~ 85°C
Mounting Type	Through Hole
Package / Case	PCB Mount
Type	Unamplified
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts for the OPB828C are qualified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must match identically:

Sensing Distance: 0.125" (3.18mm)
Sensing Method: Through-Beam
Output Configuration: Phototransistor
Current - DC Forward (If) Max: 50 mA
Current - Collector (Ic) Max: 30 mA
Voltage - Collector Emitter Breakdown Max: 30 V
Operating Temperature Range: -40°C ~ 85°C
Mounting Type: Through Hole
Package / Case: PCB Mount
Type: Unamplified
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected

All identified substitute parts meet these criteria without exception. Substitution is valid for direct replacement in applications where the OPB828C is specified.

Parameter Comparison

Part Number	Manufacturer	Sensing Distance	Sensing Method	Output Configuration	If Max (mA)	Ic Max (mA)	VCE Breakdown Max (V)	Operating Temp (°C)	Mounting Type	Package	Type	RoHS	MSL	Inventory (Pcs)
OPB828C	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50	30	30	-40 ~ 85	Through Hole	PCB Mount	Unamplified	ROHS3	1	961
OPB360T51	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50	30	30	-40 ~ 85	Through Hole	PCB Mount	Unamplified	ROHS3	1	2007
OPB365T55	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50	30	30	-40 ~ 85	Through Hole	PCB Mount	Unamplified	ROHS3	1	4496
OPB370L55	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50	30	30	-40 ~ 85	Through Hole	PCB Mount	Unamplified	ROHS3	1	909
OPB370T51	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50	30	30	-40 ~ 85	Through Hole	PCB Mount	Unamplified	ROHS3	1	909
OPB370T55	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50	30	30	-40 ~ 85	Through Hole	PCB Mount	Unamplified	ROHS3	1	1112
OPB380T11Z	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50	30	30	-40 ~ 85	Through Hole	PCB Mount	Unamplified	ROHS3	1	1111
OPB380T51Z	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50	30	30	-40 ~ 85	Through Hole	PCB Mount	Unamplified	ROHS3	1	2503
OPB380T55Z	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50	30	30	-40 ~ 85	Through Hole	PCB Mount	Unamplified	ROHS3	1	1036
OPB390L11Z	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50	30	30	-40 ~ 85	Through Hole	PCB Mount	Unamplified	ROHS3	1	1137
OPB390L51Z	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50	30	30	-40 ~ 85	Through Hole	PCB Mount	Unamplified	ROHS3	1	1025

Engineering Selection Recommendations

All substitute parts listed are manufactured by TT Electronics/Optek Technology and maintain active product status. Each part is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement. Selection among equivalent parts should be based on inventory availability and lead time considerations, as all parts are electrically and mechanically identical for the specified application parameters.

Frequently Asked Questions (FAQ)

Q: Can OPB360T51 be used as a direct replacement for OPB828C? A: Yes. OPB360T51 meets all electrical and mechanical specifications of OPB828C, including sensing distance, current ratings, voltage breakdown, operating temperature range, and mounting configuration. Direct substitution is valid.

Q: What is the difference between OPB370T51 and OPB370T55? A: Both parts are parametrically equivalent to OPB828C. The suffix designations (T51 vs T55) indicate internal configuration variants within the OPB370 base product line, but electrical and mechanical performance parameters remain identical for substitution purposes.

Q: Are the OPB380 and OPB390 series parts compatible with OPB828C applications? A: Yes. OPB380T11Z, OPB380T51Z, OPB380T55Z, OPB390L11Z, and OPB390L51Z all match the critical parameters of OPB828C and are valid substitutes. The base product numbers (OPB380, OPB390) and suffix codes represent design variants, but functional equivalence is maintained.

Q: Does MSL rating affect substitution eligibility? A: No. All listed parts share MSL Level 1 (Unlimited), indicating identical moisture sensitivity handling requirements. This parameter does not differentiate substitution eligibility.

Q: Are there any compliance differences between OPB828C and its substitutes? A: No. All substitute parts carry identical RoHS3 compliance and REACH unaffected status, ensuring regulatory equivalence for procurement and deployment.

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