L14P1 Phototransistor 880nm TO-206AA Equivalent & Substitute Parts

Part Overview

The L14P1 is a phototransistor optical sensor manufactured by onsemi, designed for 880nm infrared detection in a TO-206AA metal can package. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. The L14P1 operates across an extended temperature range of -65°C to 125°C and is suitable for through-hole mounting applications requiring near-infrared photodetection.

Key Parameters

Parameter	Value
Manufacturer Part Number	L14P1
Manufacturer	onsemi
Category	Optical Sensors
Description	SENSOR PHOTO 880NM TOP TO206AA
Package / Case	TO-206AA, TO-18-3 Metal Can
Wavelength	880nm
Viewing Angle	16°
Voltage - Collector Emitter Breakdown (Max)	30 V
Current - Dark (Id) (Max)	100 nA
Power - Max	300 mW
Mounting Type	Through Hole
Orientation	Top View
Operating Temperature	-65°C ~ 125°C (TA)
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the L14P1 is based on the following critical parameters that must align for functional equivalence:

Primary Substitution Criteria:

Package / Case: TO-206AA, TO-18-3 Metal Can (identical mechanical and electrical interface)
Mounting Type: Through Hole (same PCB assembly method)
Orientation: Top View (same optical axis orientation)
Operating Temperature Range: -65°C ~ 125°C (same thermal operating envelope)
Voltage - Collector Emitter Breakdown (Max): 30 V (same maximum voltage rating)
Current - Dark (Id) (Max): 100 nA (same dark current specification)

Secondary Consideration:

Wavelength: 880nm (L14P1) vs. 890nm (substitute parts) — a 10nm shift within the near-infrared spectrum, acceptable for most applications using standard 880nm/890nm photodiode pairs

All substitute parts listed are manufactured by TT Electronics / Optek Technology and maintain active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment.

Parameter Comparison

Parameter	L14P1	OP800A	OP800B	OP800C	OP804SL	OP804TX	OP804TXV	OP805SL	OP805TX	OP805TXV
Manufacturer	onsemi	TT Electronics / Optek Technology	TT Electronics / Optek Technology	TT Electronics / Optek Technology	TT Electronics / Optek Technology	TT Electronics / Optek Technology	TT Electronics / Optek Technology	TT Electronics / Optek Technology	TT Electronics / Optek Technology	TT Electronics / Optek Technology
Wavelength	880nm	890nm	890nm	890nm	890nm	890nm	890nm	890nm	890nm	890nm
Viewing Angle	16°	—	—	—	—	24°	24°	—	24°	24°
Voltage - Collector Emitter Breakdown (Max)	30 V	30 V	30 V	30 V	30 V	30 V	30 V	30 V	30 V	30 V
Current - Dark (Id) (Max)	100 nA	100 nA	100 nA	100 nA	100 nA	100 nA	100 nA	100 nA	100 nA	100 nA
Current - Collector (Ic) (Max)	—	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA
Power - Max	300 mW	250 mW	250 mW	250 mW	250 mW	250 mW	250 mW	250 mW	250 mW	250 mW
Package / Case	TO-206AA, TO-18-3 Metal Can	TO-206AA, TO-18-3 Metal Can	TO-206AA, TO-18-3 Metal Can	TO-206AA, TO-18-3 Metal Can	TO-206AA, TO-18-3 Metal Can	TO-206AA, TO-18-3 Metal Can	TO-206AA, TO-18-3 Metal Can	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	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Orientation	Top View	Top View	Top View	Top View	Top View	Top View	Top View	Top View	Top View	Top View
Operating Temperature	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All listed substitute parts are active products from TT Electronics / Optek Technology with ROHS3 compliance, ensuring regulatory alignment and long-term supply continuity. The L14P1 is obsolete and should be replaced in new designs.

Substitute Selection by Application Requirements:

OP800A, OP800B, OP800C are base-level alternatives with unspecified viewing angles, suitable for applications where optical field of view is not constrained.

OP804SL and OP805SL maintain unspecified viewing angles and are available in higher inventory quantities (2713 and 1590 units respectively), appropriate for high-volume production requirements.

OP804TX, OP804TXV, OP805TX, and OP805TXV feature 24° viewing angles, providing wider optical acceptance compared to the L14P1's 16° specification. These variants are suitable for applications requiring broader light collection angles.

All substitute parts operate within the same voltage, temperature, and dark current specifications as the L14P1, ensuring direct functional replacement in existing circuit designs. The 10nm wavelength shift from 880nm to 890nm is within standard near-infrared detector operating ranges and does not affect compatibility with typical 880nm/890nm LED pairs used in industrial and consumer applications.

Frequently Asked Questions (FAQ)

Q: Can OP800 series parts directly replace the L14P1?

A: Yes. OP800A, OP800B, and OP800C maintain identical electrical ratings (30V breakdown voltage, 100nA dark current), the same TO-206AA package, through-hole mounting, and -65°C to 125°C operating temperature range. The 10nm wavelength difference (880nm to 890nm) is within acceptable tolerance for standard infrared applications.

Q: What is the difference between OP804 and OP805 series?

A: Both OP804 and OP805 series are functionally equivalent substitutes for the L14P1. The primary distinction is base product number designation (OP804 vs. OP805), with no electrical parameter differences provided in the specifications. Selection between these series should be based on inventory availability and supplier preference.

Q: Why do some substitute parts specify 24° viewing angle while others do not?

A: OP804TX, OP804TXV, OP805TX, and OP805TXV explicitly list 24° viewing angles, indicating wider optical acceptance cones. Parts without specified viewing angles (OP800A, OP800B, OP800C, OP804SL, OP805SL) have unspecified viewing angle data. The L14P1's 16° specification is narrower than the 24° variants, so applications sensitive to optical field of view should account for this difference.

Q: Is the 250mW power rating of substitutes lower than the L14P1's 300mW?

A: Yes. All substitute parts are rated at 250mW maximum power dissipation, compared to the L14P1's 300mW. Circuit designs must ensure operating power remains within 250mW limits when using substitute parts. This is a minor derating and does not affect most standard applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification. The L14P1 does not specify RoHS status. Designs requiring RoHS compliance should use substitute parts from the TT Electronics / Optek Technology lineup.

Q: What is the inventory status of substitute parts?

A: All substitute parts are listed as active products with current stock availability ranging from 764 to 2713 units. The L14P1 is obsolete with 1742 units in stock. For long-term production, active substitute parts ensure ongoing supply security.

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