ISLT1008V Optoisolator Equivalent & Substitute Parts

Part Overview

The ISLT1008V is an optoisolator with transistor output manufactured by Isocom Components 2004 LTD. This single-channel device provides 5000Vrms isolation and is designed for DC input applications requiring galvanic isolation in industrial and consumer electronics. The part is currently active in production with 767 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are available, enabling design flexibility and supply chain continuity.

Substiute Parts

ISLT1008V

Isocom Components 2004 LTDIn Stock: 836ISLT1008V Datasheet

Current PartRFQ

APC-1018

American Bright Optoelectronics CorporationIn Stock: 3544APC-1018 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ISLT1008V are identified based on the following critical parameters that determine functional equivalence:

• Voltage - Isolation: 5000Vrms
• Number of Channels: 1
• Output Type: Transistor
• Current Transfer Ratio: 130% (Min) @ 5mA and 260% (Max) @ 5mA
• Voltage - Output (Max): 80V
• Current - Output / Channel: 50mA
• Vce Saturation (Max): 300mV
• Operating Temperature Range: -55°C ~ 110°C
• Mounting Type: Surface Mount
• Input Type: DC

The APC-1018 meets all these critical parameters and is therefore classified as a parametric equivalent. Both parts share identical isolation voltage, channel count, output characteristics, and operating temperature range. Differences in rise/fall time (2µs/3µs for ISLT1008V versus 6µs/8µs for APC-1018) and package designation (4-SMD versus 4-LSOP) do not affect functional substitution in applications where these timing specifications are not critical design constraints.

Parameter Comparison

Engineering Selection Recommendations

Both the ISLT1008V and APC-1018 are active products with ROHS3 compliance and unlimited moisture sensitivity rating. Selection between these parts should be based on:

• Availability: APC-1018 has higher inventory (3461 units) compared to ISLT1008V (767 units)
• Timing Performance: ISLT1008V offers faster rise/fall times (2µs/3µs) versus APC-1018 (6µs/8µs). Applications requiring faster switching response should prioritize ISLT1008V
• Supply Chain: Either part provides equivalent functional performance for DC input optoisolation applications requiring 5000Vrms isolation and 50mA output current

Frequently Asked Questions (FAQ)

Q: Can APC-1018 directly replace ISLT1008V in existing designs?

A: Yes, for applications where the rise/fall time difference (2µs/3µs versus 6µs/8µs) does not impact circuit performance. Both parts share identical isolation voltage, current transfer ratio, output voltage/current ratings, and operating temperature range.

Q: What is the difference between 4-SMD and 4-LSOP package designations?

A: Both designations refer to surface mount packages with four leads in a gull wing configuration. The functional pinout and electrical performance are equivalent. Verify PCB footprint compatibility with your design documentation.

Q: Are both parts RoHS compliant?

A: Yes, both ISLT1008V and APC-1018 are ROHS3 compliant and have MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions.

Q: Which part should I select for high-speed switching applications?

A: ISLT1008V is the preferred choice due to faster rise/fall times (2µs/3µs). APC-1018 with 6µs/8µs rise/fall times is suitable for applications where switching speed is not a critical constraint.

Q: What is the isolation voltage rating, and why is it important?

A: Both parts provide 5000Vrms isolation, which defines the maximum voltage difference that can be safely applied between input and output circuits while maintaining galvanic isolation and safety compliance.