OP604TX Equivalent & Substitute Parts

Part Overview

The OP604TX is a phototransistor optical sensor manufactured by TT Electronics/Optek Technology, designed for surface mount applications in a pill package configuration with top view orientation. This component is classified as obsolete, which necessitates identification of equivalent substitute parts for ongoing design requirements and procurement planning. The OP604TX remains available in inventory (992 pcs), but obsolete status indicates discontinued manufacturing and potential long-term supply constraints.

Substiute Parts

OP604TX

TT Electronics/Optek TechnologyIn Stock: 1080OP604TX Datasheet

Current PartRFQ

OP604TXV

TT Electronics/Optek TechnologyIn Stock: 852OP604TXV Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The OP604TXV qualifies as a direct substitute for the OP604TX based on electrical and mechanical parameter equivalence. Substitution is valid when the following criteria are met:

Electrical Parameters (Must Match):

• Voltage - Collector Emitter Breakdown (Max): 50 V
• Current - Collector (Ic) (Max): 8 mA
• Current - Dark (Id) (Max): 25 nA
• Power - Max: 50 mW

Mechanical Parameters (Must Match):

• Mounting Type: Surface Mount
• Orientation: Top View
• Package / Case: Pill
• Viewing Angle: 36°
• Operating Temperature: -55°C ~ 125°C

The OP604TXV maintains identical electrical and mechanical specifications to the OP604TX, enabling direct substitution in circuit designs. The primary distinction is product status: OP604TXV is active production, whereas OP604TX is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The OP604TXV is the direct substitute for the OP604TX. Selection between these parts is determined by regulatory and compliance requirements:

Use OP604TX when:

• Existing inventory must be consumed prior to transition
• RoHS non-compliance is acceptable for the application
• Legacy design documentation references this specific part number

Use OP604TXV when:

• New designs require ROHS3 compliance
• Long-term supply continuity is required (active production status)
• Regulatory requirements mandate RoHS3 compliance

Both parts are electrically and mechanically identical, ensuring functional equivalence in circuit applications. The transition from OP604TX to OP604TXV involves no circuit redesign or performance modification.

Frequently Asked Questions (FAQ)

Q: Can OP604TXV replace OP604TX in existing designs? A: Yes. The OP604TXV is electrically and mechanically equivalent to the OP604TX. No circuit modifications are required for substitution.

Q: What is the primary difference between OP604TX and OP604TXV? A: Product status and RoHS compliance. The OP604TX is obsolete and RoHS non-compliant, while the OP604TXV is in active production and ROHS3 compliant. Electrical and mechanical specifications are identical.

Q: Are the pill packages identical between OP604TX and OP604TXV? A: Yes. Both components use the same pill package configuration with top view orientation and identical mechanical dimensions.

Q: What are the critical electrical parameters for substitution? A: Voltage rating (50 V), maximum collector current (8 mA), dark current (25 nA), and power dissipation (50 mW) must remain constant. The OP604TXV maintains all these specifications.

Q: Is RoHS compliance a factor in substitution decisions? A: RoHS compliance becomes relevant only when regulatory requirements apply to the end application. The OP604TXV offers ROHS3 compliance, while the OP604TX does not. Electrical performance is unaffected by this distinction.

Q: What is the viewing angle specification, and does it affect substitution? A: Both parts specify a 36° viewing angle. This optical parameter is identical and does not differentiate the parts for substitution purposes.