OPB848TXV Equivalent & Substitute Parts

Part Overview

The OPB848TXV is an optical sensor manufactured by TT Electronics/Optek Technology, classified as a through-beam phototransistor optical sensor with PCB mount configuration. This component is currently listed as obsolete, which necessitates identification of active equivalent alternatives for ongoing design support and procurement.

The OPB848TXV provides through-beam optical sensing at 0.100" (2.54mm) spacing with phototransistor output configuration. Due to its obsolete status, equivalent active parts from the same manufacturer family are available to maintain functional compatibility in applications requiring this sensing technology.

Key Parameters

Parameter	Value
Sensing Distance	0.100" (2.54mm)
Sensing Method	Through-Beam
Output Configuration	Phototransistor
Current - DC Forward (If) (Max)	50 mA
Voltage - Collector Emitter Breakdown (Max)	30 V
Response Time	12µs
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)

Substitute Part Grouping Explanation

Substitution of the OPB848TXV is determined by strict equivalence across the following critical parameters:

Sensing distance: 0.100" (2.54mm)
Sensing method: Through-beam
Output configuration: Phototransistor
Maximum DC forward current: 50 mA
Maximum collector-emitter breakdown voltage: 30 V
Response time: 12µs
Operating temperature range: -40°C ~ 85°C
Mounting type: Through hole
Package configuration: PCB mount
Sensor type: Unamplified

All substitute parts listed maintain identical electrical and mechanical specifications across these parameters. Substitution is valid only when all parameters match exactly. The primary distinction among equivalent parts is product status and packaging format.

Parameter Comparison

Part Number	Manufacturer	Product Status	Sensing Distance	Sensing Method	Output Configuration	If (Max)	Vce (Max)	Response Time	Operating Temp	Mounting Type	RoHS Status	Inventory
OPB848TXV	TT Electronics/Optek Technology	Obsolete	0.100" (2.54mm)	Through-Beam	Phototransistor	50 mA	30 V	12µs	-40°C ~ 85°C	Through Hole	ROHS3 Compliant	906 Pcs
OPB848	TT Electronics / Optek Technology	Active	0.100" (2.54mm)	Through-Beam	Phototransistor	50 mA	30 V	12µs	-40°C ~ 85°C	Through Hole	ROHS3 Compliant	1280 Pcs
OPB847	TT Electronics/Optek Technology	Active	0.100" (2.54mm)	Through-Beam	Phototransistor	50 mA	30 V	12µs	-40°C ~ 85°C	Through Hole	ROHS3 Compliant	1984 Pcs
OPB847TX	TT Electronics/Optek Technology	Active	0.100" (2.54mm)	Through-Beam	Phototransistor	50 mA	30 V	12µs	-40°C ~ 85°C	Through Hole	ROHS3 Compliant	857 Pcs

Engineering Selection Recommendations

All substitute parts—OPB848, OPB847, and OPB847TX—are active products with identical electrical and mechanical specifications to the obsolete OPB848TXV. All equivalents maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component.

Selection among active equivalents should prioritize parts with highest inventory availability to ensure supply continuity. OPB847 offers the highest stock level at 1984 pieces, followed by OPB848 at 1280 pieces. OPB847TX, while active, maintains lower inventory at 857 pieces.

All substitute parts are manufactured by the same supplier (TT Electronics/Optek Technology) and share identical functional characteristics, electrical ratings, and environmental specifications. Direct substitution is electrically and mechanically valid across all listed alternatives.

Frequently Asked Questions (FAQ)

Q: Can OPB848, OPB847, and OPB847TX be used interchangeably with OPB848TXV?

A: Yes. All three parts maintain identical electrical specifications (50 mA maximum forward current, 30 V maximum collector-emitter breakdown voltage), identical sensing distance (0.100" / 2.54mm), identical response time (12µs), and identical operating temperature range (-40°C ~ 85°C). All are through-hole PCB mount phototransistor sensors with unamplified output. Substitution is valid from an electrical and mechanical standpoint.

Q: Why is OPB848TXV listed as obsolete?

A: Product status reflects manufacturer lifecycle designation. The obsolete status of OPB848TXV indicates the part is no longer in active production. Active equivalents (OPB848, OPB847, OPB847TX) provide identical functionality and are currently manufactured.

Q: What is the difference between OPB847 and OPB847TX?

A: Both parts share identical electrical and mechanical specifications. OPB847TX is designated with a "TX" suffix and lists OPB847 as its base product number. The functional parameters are equivalent; the designation difference reflects manufacturer part numbering convention.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. OPB848TXV and all substitute parts (OPB848, OPB847, OPB847TX) are ROHS3 compliant with moisture sensitivity level 1 (unlimited). All parts are REACH unaffected.

Q: Which substitute part should be selected for new designs?

A: Any of the three active equivalents (OPB848, OPB847, OPB847TX) are suitable for new designs. Selection may be based on procurement availability and lead time. OPB847 maintains the highest inventory level.

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