MLO36-12IO1 Equivalent & Substitute Parts

Part Overview

The MLO36-12IO1 is a 1.2 kV SCR module manufactured by IXYS, designed for single-phase AC control applications with chassis mount configuration. This module integrates one SCR and one diode, rated for 28 A RMS on-state current. The part is currently obsolete, making identification of suitable substitute components essential for system maintenance, repair, and redesign applications where continued operation or replacement is required.

Substiute Parts

MLO36-12IO1

IXYSIn Stock: 1183MLO36-12IO1 Datasheet

Current PartRFQ

MLO110-12IO7

IXYSIn Stock: 760MLO110-12IO7 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MLO36-12IO1 is determined by the following critical parameters:

• Voltage Rating (Off State): Must match or exceed 1.2 kV to maintain system voltage isolation
• Current Rating (It (RMS)): Must support minimum 28 A RMS on-state current for equivalent load handling
• Gate Trigger Characteristics: Vgt and Igt parameters must be compatible with existing gate drive circuitry
• Hold Current (Ih): Must not exceed 100 mA to ensure reliable gate control release
• Mounting Configuration: Chassis mount form factor required for mechanical compatibility
• Structure: 1-Phase Controller - SCR/Diode topology must be preserved

The MLO110-12IO7 qualifies as a substitute based on these parameters, offering enhanced current capacity and improved thermal performance while maintaining electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The MLO110-12IO7 serves as a direct substitute for the obsolete MLO36-12IO1 based on the following engineering criteria:

Electrical Compatibility: Both modules maintain identical 1.2 kV off-state voltage rating and 1-phase SCR/diode topology. The MLO110-12IO7 provides higher current capacity (81 A RMS versus 28 A RMS), which is acceptable for applications where the original module operated below maximum rating.

Gate Drive Considerations: The substitute requires higher gate trigger voltage (1.5 V maximum versus 1 V maximum) and gate trigger current (100 mA maximum versus 65 mA maximum). Existing gate drive circuits must be evaluated to confirm adequate drive capability before substitution.

Thermal Performance: The MLO110-12IO7 extends the operating temperature range to 150°C, providing improved thermal margin in high-temperature environments compared to the original 125°C limit.

Product Status and Compliance: The MLO110-12IO7 is in active production with ROHS3 compliance certification, ensuring long-term availability and regulatory alignment. Both modules maintain REACH Unaffected status and EAR99 export classification.

Mechanical Compatibility: Chassis mount configuration is preserved, ensuring direct mechanical fit in existing installations.

Frequently Asked Questions (FAQ)

Q: Can the MLO110-12IO7 directly replace the MLO36-12IO1 without circuit modifications?

A: Mechanical and voltage compatibility are direct. However, gate drive circuit evaluation is required. The substitute requires higher gate trigger voltage (1.5 V vs. 1 V) and gate trigger current (100 mA vs. 65 mA). Existing gate drive circuits must provide adequate drive capability to ensure reliable operation.

Q: What is the primary reason for substitution?

A: The MLO36-12IO1 is obsolete. The MLO110-12IO7 is an active production equivalent that maintains the same voltage rating, mounting type, and 1-phase SCR/diode structure while offering enhanced current capacity and thermal performance.

Q: Are there any compliance differences between the two modules?

A: The MLO36-12IO1 has no RoHS certification status listed. The MLO110-12IO7 is ROHS3 compliant. Both maintain REACH Unaffected status and EAR99 export classification. For applications requiring specific compliance certifications, this difference must be evaluated against system requirements.

Q: How does the higher current rating of the MLO110-12IO7 affect system design?

A: The substitute's 81 A RMS rating exceeds the original 28 A RMS specification. This provides design margin and allows operation in applications requiring higher current capacity. No derating is necessary for applications within the original 28 A specification.

Q: What is the impact of the extended operating temperature range?

A: The MLO110-12IO7 operates to 150°C junction temperature versus 125°C for the original module. This provides improved thermal margin in high-temperature environments and may reduce cooling requirements in thermally constrained applications.

Q: Are the modules pin-compatible?

A: Both modules use chassis mount configuration. Physical mounting compatibility is maintained. Gate drive signal levels must be verified for compatibility with existing control circuits.