LTV-702FM Equivalent & Substitute Parts

Part Overview

The LTV-702FM is an optoisolator with transistor output manufactured by Lite-On Inc., designed for galvanic isolation applications requiring 5000Vrms isolation voltage. This single-channel device operates in DC input mode with a 6-DIP through-hole package. The product is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when the main part becomes unavailable, when inventory constraints require alternative sourcing, or when design flexibility permits equivalent component selection within specified electrical and mechanical parameters.

Substiute Parts

LTV-702FM

Lite-On Inc.In Stock: 9881LTV-702FM Datasheet

Current PartRFQ

CNY17F-2M-V

Everlight Electronics Co LtdIn Stock: 922CNY17F-2M-V Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LTV-702FM is determined by the following critical parameters:

Mandatory Matching Parameters:

• Voltage - Isolation: 5000Vrms (galvanic isolation requirement)
• Number of Channels: 1 (functional requirement)
• Output Type: Transistor (circuit topology requirement)
• Package / Case: 6-DIP (0.400", 10.16mm) (mechanical and PCB compatibility)
• Mounting Type: Through Hole (assembly process compatibility)
• Input Type: DC (signal type compatibility)

Allowable Parameter Ranges for Substitution:

• Current Transfer Ratio: Substitute must fall within or overlap the operational range of the main part
• Voltage - Output (Max): Substitute must meet or exceed the main part specification
• Current - Output / Channel: Substitute must meet or exceed the main part specification
• Vce Saturation (Max): Substitute must meet or be lower than the main part specification
• Operating Temperature: Substitute must cover the main part's temperature range or be suitable for the intended application environment
• RoHS Status: Substitute must maintain ROHS3 compliance

The CNY17F-2M-V from Everlight Electronics Co Ltd qualifies as a direct substitute based on matching all mandatory parameters and meeting or exceeding electrical performance specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the LTV-702FM and CNY17F-2M-V are active production components with ROHS3 compliance and identical packaging specifications. The CNY17F-2M-V demonstrates improved electrical performance in specific parameters: higher minimum current transfer ratio (63% vs. 40%), lower Vce saturation (300mV vs. 400mV), and extended maximum operating temperature (110°C vs. 100°C). The CNY17F-2M-V exhibits a narrower current transfer ratio range (63–125% vs. 40–320%), which may require circuit design verification for applications dependent on the wider tolerance band of the LTV-702FM. Both devices maintain identical isolation voltage, channel count, package form factor, and compliance certifications, supporting direct substitution in through-hole PCB assemblies.

Frequently Asked Questions (FAQ)

Q: Can the CNY17F-2M-V replace the LTV-702FM in existing designs?

A: Yes. Both devices share identical isolation voltage (5000Vrms), single-channel configuration, transistor output topology, and 6-DIP through-hole package. Electrical performance of the CNY17F-2M-V meets or exceeds the LTV-702FM in maximum output voltage and saturation voltage. Circuit validation is required if the design relies on the LTV-702FM's wider current transfer ratio tolerance range (40–320% vs. 63–125%).

Q: Are there package compatibility concerns?

A: No. Both parts use the 6-DIP (0.400", 10.16mm) package with through-hole mounting. PCB footprints and assembly processes are identical.

Q: What are the key differences between these parts?

A: The CNY17F-2M-V provides superior saturation voltage performance (300mV vs. 400mV) and extended operating temperature range (-55°C to 110°C vs. -55°C to 100°C). The LTV-702FM offers a broader current transfer ratio specification window. Both maintain full RoHS3 compliance and 5000Vrms isolation.

Q: Which part should be selected for new designs?

A: Selection depends on application requirements. The CNY17F-2M-V is suitable for designs requiring lower saturation voltage or operation at elevated temperatures. The LTV-702FM is appropriate when the wider current transfer ratio tolerance is a design requirement. Both are active production components with equivalent compliance status.

Q: Are these parts interchangeable at the PCB assembly level?

A: Yes. Identical package, pin count, and through-hole mounting specifications enable direct substitution without PCB redesign or assembly process modification.