LTV-825S-TA Equivalent & Substitute Parts

Part Overview

The LTV-825S-TA is a dual-channel optoisolator with Darlington output manufactured by Lite-On Inc. This component provides 5000Vrms isolation voltage and is designed for applications requiring galvanic isolation in signal transmission circuits. The part is currently in active production status with 1108 units available in inventory. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

LTV-825S-TA

Lite-On Inc.In Stock: 1197LTV-825S-TA Datasheet

Current PartRFQ

ISP825XSMT&R

Isocom Components 2004 LTDIn Stock: 2162ISP825XSMT&R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LTV-825S-TA is determined by the following critical parameters:

• Dual-channel configuration: Both main and substitute parts must provide exactly 2 isolated channels
• Isolation voltage: Minimum 5000Vrms isolation rating required
• Current transfer ratio range: 600% minimum and 7500% maximum @ 1mA
• Darlington output stage: Output topology must be Darlington type
• Maximum output voltage and current: 35V maximum and 80mA per channel
• Saturation voltage: Maximum 1V Vce saturation
• Temperature range: Operating range of -30°C to 100°C
• Package compatibility: 8-SMD, Gull Wing surface mount package
• Compliance: ROHS3 compliance required

Parts meeting all these parameters are classified as direct electrical and mechanical equivalents.

Parameter Comparison

Engineering Selection Recommendations

The ISP825XSMT&R from Isocom Components 2004 LTD qualifies as a direct substitute for the LTV-825S-TA. Both components are in active production status and maintain identical electrical specifications across all critical parameters. The ISP825XSMT&R provides a higher isolation voltage rating (5300Vrms versus 5000Vrms), which represents an enhancement rather than a limitation. Both parts carry ROHS3 compliance certification and MSL Level 1 rating, confirming equivalent environmental and regulatory standing. The identical package configuration (8-SMD, Gull Wing) ensures mechanical compatibility in existing PCB layouts without design modification.

Frequently Asked Questions (FAQ)

Q: Can the ISP825XSMT&R replace the LTV-825S-TA in existing designs?

A: Yes. The ISP825XSMT&R meets or exceeds all electrical parameters specified for the LTV-825S-TA, including isolation voltage, current transfer ratio, output voltage and current ratings, and operating temperature range. The identical 8-SMD, Gull Wing package ensures direct PCB compatibility.

Q: What is the significance of the higher isolation voltage in the ISP825XSMT&R?

A: The ISP825XSMT&R provides 5300Vrms isolation compared to the LTV-825S-TA's 5000Vrms. This represents a 6% increase in isolation capability and does not create any compatibility issues in applications designed for the lower rating.

Q: Are there packaging differences between these parts?

A: Both parts use the 8-SMD, Gull Wing surface mount package. The ISP825XSMT&R is supplied in Tape & Reel (TR) format, while the LTV-825S-TA packaging specification is not detailed. This difference affects handling and storage but does not impact electrical or mechanical compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the LTV-825S-TA and ISP825XSMT&R are ROHS3 compliant with MSL Level 1 rating. Both carry EAR99 ECCN classification and the same HTSUS code (8541.49.8000).

Q: What parameters must remain constant for substitution?

A: The following parameters must match or exceed the original specification: number of channels (2), isolation voltage (minimum 5000Vrms), current transfer ratio range (600% to 7500% @ 1mA), output type (Darlington), maximum output voltage (35V), maximum output current per channel (80mA), maximum Vce saturation (1V), operating temperature range (-30°C to 100°C), and package type (8-SMD, Gull Wing).