OP801SL Equivalent & Substitute Parts

Part Overview

The OP801SL is a phototransistor optical sensor manufactured by TT Electronics/Optek Technology, designed for 890nm infrared detection applications. The device features a TO-206AA metal can package with top-view orientation and is rated for 30V collector-emitter breakdown voltage with 50mA maximum collector current. The OP801SL is classified as obsolete, making identification of functionally equivalent active alternatives necessary for ongoing design support and procurement.

Key Parameters

Parameter	OP801SL
Wavelength	890nm
Voltage - Collector Emitter Breakdown (Max)	30V
Current - Collector (Ic) (Max)	50mA
Current - Dark (Id) (Max)	100nA
Power - Max	250mW
Package / Case	TO-206AA, TO-18-3 Metal Can
Mounting Type	Through Hole
Orientation	Top View
Operating Temperature	-65°C ~ 125°C
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the OP801SL are identified based on electrical and mechanical parameter compatibility within the optical sensor category. The primary substitution criteria are:

Identical package type: TO-206AA, TO-18-3 Metal Can
Identical mounting type: Through Hole
Identical orientation: Top View
Matching voltage rating: 30V collector-emitter breakdown
Matching current rating: 50mA maximum collector current
Matching dark current specification: 100nA maximum
Matching power dissipation: 250mW maximum
Wavelength compatibility: 880nm to 890nm range (near-infrared detection band)
Operating temperature range: Minimum -30°C to maximum 100°C or better
Active product status with current availability

Two substitute parts meet these criteria and are classified as manufacturer-recommended alternatives.

Parameter Comparison

Parameter	OP801SL	OP804SL	MTD8600N4-T
Manufacturer	TT Electronics/Optek Technology	TT Electronics/Optek Technology	Marktech Optoelectronics
Wavelength	890nm	890nm	880nm
Voltage - Collector Emitter Breakdown (Max)	30V	30V	30V
Current - Collector (Ic) (Max)	50mA	50mA	50mA
Current - Dark (Id) (Max)	100nA	100nA	100nA
Power - Max	250mW	250mW	250mW
Package / Case	TO-206AA, TO-18-3 Metal Can	TO-206AA, TO-18-3 Metal Can	TO-206AA, TO-18-3 Metal Can
Mounting Type	Through Hole	Through Hole	Through Hole
Orientation	Top View	Top View	Top View
Operating Temperature	-65°C ~ 125°C	-65°C ~ 125°C	-30°C ~ 100°C
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Viewing Angle	Not specified	Not specified	24°

Engineering Selection Recommendations

Both OP804SL and MTD8600N4-T are active, in-stock alternatives to the obsolete OP801SL phototransistor.

OP804SL is the manufacturer-recommended primary substitute. It is produced by the original manufacturer (TT Electronics/Optek Technology) and maintains identical electrical specifications and operating temperature range (-65°C ~ 125°C) as the OP801SL. The OP804SL is ROHS3 compliant with unlimited moisture sensitivity level rating and is available in bulk packaging with 2713 units in stock.

MTD8600N4-T is an alternative substitute manufactured by Marktech Optoelectronics. It maintains all critical electrical parameters (30V breakdown, 50mA collector current, 100nA dark current, 250mW power) and identical package configuration. The MTD8600N4-T operates within a narrower temperature range (-30°C ~ 100°C) and includes a specified 24° viewing angle. This part is ROHS3 compliant with 828 units in stock.

Selection between these substitutes depends on application-specific temperature requirements and viewing angle specifications.

Frequently Asked Questions (FAQ)

Q: Can OP804SL directly replace OP801SL in existing designs?

A: Yes. The OP804SL maintains identical electrical ratings (30V breakdown, 50mA collector current, 100nA dark current, 250mW power), wavelength (890nm), package type (TO-206AA metal can), mounting configuration (through-hole, top view), and operating temperature range (-65°C ~ 125°C). No circuit modifications are required.

Q: What is the difference between OP804SL and MTD8600N4-T?

A: Both parts share identical electrical specifications and package configuration. The primary differences are: (1) OP804SL is manufactured by TT Electronics/Optek Technology with operating temperature -65°C ~ 125°C; MTD8600N4-T is manufactured by Marktech Optoelectronics with operating temperature -30°C ~ 100°C. (2) MTD8600N4-T specifies a 24° viewing angle, while OP804SL does not specify this parameter.

Q: Which substitute should be selected for temperature-critical applications?

A: Applications requiring operation below -30°C or above 100°C must use OP804SL, which supports the full -65°C ~ 125°C range. MTD8600N4-T is limited to -30°C ~ 100°C.

Q: Are both substitutes RoHS compliant?

A: Yes. Both OP804SL and MTD8600N4-T are ROHS3 compliant with moisture sensitivity level 1 (unlimited) and REACH unaffected status.

Q: What is the wavelength difference between OP804SL and MTD8600N4-T?

A: OP804SL operates at 890nm. MTD8600N4-T operates at 880nm. Both wavelengths fall within the near-infrared detection band and are functionally compatible for most 890nm-optimized applications.

Q: Are these parts available in different packaging options?

A: OP804SL is available in bulk packaging. MTD8600N4-T is available in bulk packaging. Both maintain the TO-206AA, TO-18-3 metal can package configuration.

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