MOC5008VM Equivalent & Substitute Parts

Part Overview

The MOC5008VM is a logic output optoisolator manufactured by onsemi, designed for applications requiring galvanic isolation with open collector output configuration. This component operates at 1MHz data rate and provides 7500Vpk isolation voltage in a 6-DIP through-hole package. The MOC5008VM is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

MOC5008VM

onsemiIn Stock: 943MOC5008VM Datasheet

Current PartRFQ

H11L1VM

onsemiIn Stock: 22380H11L1VM Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MOC5008VM is determined by the following critical parameters:

• Package Compatibility: Both parts must use 6-DIP (0.300", 7.62mm) through-hole mounting to ensure direct PCB compatibility without layout modifications.
• Channel Configuration: Single-channel optoisolator architecture with 1 input and 0 side 2 inputs.
• Output Architecture: Open collector output type for logic-level signal isolation.
• Data Rate: 1MHz operational frequency for signal transmission.
• Isolation Voltage: The MOC5008VM specifies 7500Vpk isolation. Substitute parts must meet or exceed this isolation requirement to maintain system safety and regulatory compliance.
• Output Current: 50 mA per channel capability for driving downstream logic circuits.
• Input Type: DC input configuration.

The H11L1VM qualifies as a direct substitute based on matching package, channel count, output type, data rate, and output current specifications. While the H11L1VM specifies 4170Vrms isolation (approximately 5900Vpk equivalent), this represents a lower isolation rating than the MOC5008VM. Selection must be validated against specific application isolation requirements.

Parameter Comparison

Engineering Selection Recommendations

The H11L1VM is the designated substitute for the obsolete MOC5008VM based on matching mechanical and functional parameters. The H11L1VM offers the following advantages:

• Active Product Status: The H11L1VM maintains active manufacturing status with 22,300 units in current inventory, ensuring long-term availability and supply chain continuity.
• Regulatory Compliance: The H11L1VM achieves ROHS3 compliance, meeting modern environmental and hazardous substance restrictions. The MOC5008VM is RoHS non-compliant, presenting regulatory constraints for new designs and applications subject to RoHS directives.
• Documented Specifications: The H11L1VM provides complete electrical characterization including propagation delay, rise/fall times, forward voltage, and operating temperature range, enabling precise circuit design validation.

Critical Consideration: The H11L1VM specifies 4170Vrms isolation voltage, which is lower than the MOC5008VM's 7500Vpk specification. Applications requiring isolation voltage exceeding 4170Vrms must conduct detailed isolation requirement analysis before substitution.

Frequently Asked Questions (FAQ)

Q: Can the H11L1VM directly replace the MOC5008VM in existing PCB designs?

A: Yes, from a mechanical and pinout perspective. Both components use identical 6-DIP (0.300", 7.62mm) through-hole packaging with matching pin configurations. No PCB layout modifications are required. However, the isolation voltage difference must be evaluated against application requirements.

Q: What is the isolation voltage difference between these parts?

A: The MOC5008VM specifies 7500Vpk isolation, while the H11L1VM specifies 4170Vrms isolation. These are different measurement standards. The H11L1VM's 4170Vrms is approximately equivalent to 5900Vpk, representing a lower isolation rating. Applications with isolation requirements exceeding 4170Vrms must verify compatibility.

Q: Why is the MOC5008VM obsolete?

A: The MOC5008VM is classified as obsolete by the manufacturer. The H11L1VM represents the active product line continuation with enhanced specifications and regulatory compliance.

Q: Are there any supply chain advantages to using the H11L1VM?

A: Yes. The H11L1VM maintains active production status with 22,300 units in inventory, compared to the MOC5008VM's 914 units of remaining stock. This ensures sustained availability and reduces supply risk for new designs and production runs.

Q: Does the H11L1VM meet modern regulatory requirements?

A: Yes. The H11L1VM is ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance regulations. The MOC5008VM is RoHS non-compliant, which may restrict its use in applications subject to RoHS directives.

Q: Are the electrical performance characteristics equivalent?

A: Core functional parameters match: 1MHz data rate, 50mA output current, open collector output, and DC input type. The H11L1VM provides documented timing specifications (4µs propagation delay, 100ns rise/fall times) and operating temperature range (-40°C to 85°C) that are not specified for the MOC5008VM. The isolation voltage difference requires application-specific evaluation.