ISQ1SM Equivalent & Substitute Parts

Part Overview

The ISQ1SM is an optoisolator transistor output component manufactured by Isocom Components 2004 LTD. This 16-pin surface mount device provides galvanic isolation with a 5300Vrms rating and single-channel transistor output with base connection. The component is classified as Active product status with full inventory availability. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, supply chain alternatives, or inventory management in applications demanding identical isolation voltage, output characteristics, and package specifications.

Substiute Parts

ISQ1SM

Isocom Components 2004 LTDIn Stock: 950ISQ1SM Datasheet

Current PartRFQ

ISQ1XSM

Isocom Components 2004 LTDIn Stock: 802ISQ1XSM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ISQ1SM are identified based on strict parametric equivalence across the following critical criteria:

• Voltage - Isolation: 5300Vrms (galvanic isolation rating)
• Number of Channels: 1 (single-channel configuration)
• Output Type: Transistor with Base (output architecture)
• Current Transfer Ratio: 20% to 300% @ 10mA (transfer characteristics)
• Voltage - Output (Max): 70V (maximum output voltage)
• Current - Output / Channel: 50mA (output current capability)
• Package / Case: 16-SMD, Gull Wing (physical form factor)
• Mounting Type: Surface Mount (assembly compatibility)
• Operating Temperature: -25°C ~ 100°C (thermal operating range)

Substitution is valid only when all parameters match exactly. Deviations in isolation voltage, channel count, output type, or package configuration disqualify a part from direct substitution.

Parameter Comparison

Engineering Selection Recommendations

Both ISQ1SM and ISQ1XSM are Active product status components from Isocom Components 2004 LTD with identical electrical and mechanical specifications. Selection between these parts is determined by inventory availability and supply chain considerations rather than technical differentiation. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications. The ISQ1SM currently maintains 926 pieces in stock, while ISQ1XSM maintains 732 pieces in stock. Either part is suitable for direct substitution in applications requiring single-channel optoisolation at 5300Vrms with transistor output and base connection in 16-SMD surface mount configuration.

Frequently Asked Questions (FAQ)

Q: Can ISQ1XSM replace ISQ1SM in existing designs? A: Yes. ISQ1XSM is a parametric equivalent with identical electrical characteristics, output type, isolation voltage, current transfer ratio, and 16-SMD gull wing package configuration. Direct substitution is valid without circuit modification.

Q: What are the critical parameters that must match for substitution? A: Isolation voltage (5300Vrms), number of channels (1), output type (transistor with base), current transfer ratio range (20% to 300% @ 10mA), maximum output voltage (70V), output current (50mA), and package type (16-SMD, gull wing) must all match exactly.

Q: Are there differences in compliance or certifications between ISQ1SM and ISQ1XSM? A: No. Both parts carry identical ROHS3 compliance, REACH unaffected status, and moisture sensitivity level (MSL 1 - Unlimited). Regulatory and environmental certifications are equivalent.

Q: What is the operating temperature range for both parts? A: Both ISQ1SM and ISQ1XSM operate across -25°C to 100°C. This range applies to all electrical and mechanical specifications.

Q: Can these parts be used interchangeably in high-speed switching applications? A: Yes. Both parts exhibit identical rise and fall times (2.6µs and 2.2µs respectively), making them suitable for equivalent performance in switching applications within the specified operating temperature range.