LDA210 Equivalent & Substitute Parts

Part Overview

The LDA210 is a 2-channel optoisolator with Darlington output manufactured by IXYS Integrated Circuits Division. It provides 3750Vrms isolation voltage and is designed for AC/DC input applications requiring galvanic isolation. The device is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

LDA210

IXYS Integrated Circuits DivisionIn Stock: 2048LDA210 Datasheet

Current PartRFQ

ILD755-1

Vishay Semiconductor Opto DivisionIn Stock: 1524ILD755-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The ILD755-1 qualifies as a substitute for the LDA210 based on the following alignment of critical parameters:

• Both devices feature 2-channel Darlington output optoisolators in 8-DIP through-hole packaging
• Both support AC/DC input types
• Both maintain 1V maximum Vce saturation voltage
• Both feature 1.2V typical forward voltage
• Both are RoHS3 compliant with MSL 1 (Unlimited) rating
• Both are EAR99 classified with identical HTSUS codes

The ILD755-1 provides enhanced electrical performance with higher isolation voltage (5300Vrms vs 3750Vrms), extended operating temperature range (-55°C to 100°C vs -40°C to 85°C), and higher maximum output voltage (60V vs 30V), making it suitable for applications requiring the LDA210's core functionality with improved specifications.

Parameter Comparison

Engineering Selection Recommendations

The ILD755-1 is the qualified substitute for the LDA210. Both devices maintain identical RoHS3 compliance and MSL 1 ratings, ensuring regulatory and environmental compatibility. The ILD755-1 is currently available as Last Time Buy status, whereas the LDA210 is obsolete. For new designs or system replacements, the ILD755-1 provides superior isolation voltage and extended temperature operating range while maintaining mechanical and electrical interface compatibility through identical 8-DIP packaging and core Darlington output characteristics.

Frequently Asked Questions (FAQ)

Q: Can the ILD755-1 directly replace the LDA210 in existing PCB designs?

A: Yes. Both devices use identical 8-DIP (0.300", 7.62mm) through-hole packaging with the same pin configuration for 2-channel Darlington optoisolators. No PCB modifications are required for mechanical or electrical interface compatibility.

Q: What are the key differences between these devices?

A: The ILD755-1 provides higher isolation voltage (5300Vrms vs 3750Vrms), extended operating temperature range (-55°C to 100°C vs -40°C to 85°C), and higher maximum output voltage (60V vs 30V). Current transfer ratio specifications differ due to different test conditions (750% @ 2mA vs 300% @ 1mA).

Q: Are both devices RoHS compliant?

A: Yes. Both the LDA210 and ILD755-1 are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Why is the LDA210 listed as obsolete?

A: The LDA210 has reached end-of-life status with the manufacturer. The ILD755-1 represents the current equivalent solution from Vishay Semiconductor Opto Division.

Q: What input types do these optoisolators support?

A: Both devices support AC and DC input types, providing flexibility for various isolation circuit topologies.