MO1CT52R162J Equivalent & Substitute Parts

Part Overview

The MO1CT52R162J is a 1.6 kOhms ±5% 1W through-hole resistor manufactured by KOA Speer Electronics, Inc. This axial metal oxide film resistor features flame retardant coating and safety characteristics suitable for general-purpose applications requiring 1W power dissipation. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and repair applications.

Substiute Parts

MO1CT52R162J

KOA Speer Electronics, Inc.In Stock: 859MO1CT52R162J Datasheet

Current PartRFQ

MOS1CT528R162J

KOA Speer Electronics, Inc.In Stock: 2463MOS1CT528R162J Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MO1CT52R162J is based on electrical and mechanical parameter equivalence within the metal oxide film resistor category. The substitute part MOS1CT528R162J maintains identical electrical specifications: 1.6 kOhms resistance value, ±5% tolerance, and 1W power rating. Both parts utilize metal oxide film composition with flame retardant coating and safety features, operate across the -55°C to 200°C temperature range, and comply with ROHS3 and REACH requirements.

The primary distinction between the main part and substitute lies in product status and physical dimensions. The MO1CT52R162J (obsolete) measures 0.157" diameter × 0.472" length, while the MOS1CT528R162J (active) measures 0.118" diameter × 0.354" length. Both maintain axial package configuration and two terminations. The substitute part represents the current active production equivalent from the same manufacturer, with improved temperature coefficient specification (±300ppm/°C versus ±200ppm/°C for the main part).

Parameter Comparison

Engineering Selection Recommendations

The MOS1CT528R162J is the direct active equivalent for the obsolete MO1CT52R162J. Both parts are manufactured by KOA Speer Electronics, Inc., and maintain identical electrical performance specifications across all critical parameters: resistance value, tolerance, power rating, composition, and operating temperature range. Both parts satisfy ROHS3 compliance and REACH requirements.

The substitute part offers the advantage of active production status with current inventory availability (2360 pieces in stock versus 808 pieces for the obsolete main part). The MOS1CT528R162J features a more compact physical form factor with reduced diameter and length dimensions while maintaining the same axial package configuration. The temperature coefficient specification of the substitute part (±300ppm/°C) is within acceptable variance for general-purpose applications and does not restrict substitution in standard circuit designs.

For new designs and production applications, the MOS1CT528R162J should be selected as the primary component. For legacy system repairs requiring exact form factor matching, the MO1CT52R162J remains available in limited stock, though the substitute's smaller dimensions typically accommodate existing PCB layouts without modification.

Frequently Asked Questions (FAQ)

Q: Can MOS1CT528R162J be used as a direct replacement for MO1CT52R162J in existing circuits?

A: Yes. Both parts share identical electrical specifications: 1.6 kOhms resistance, ±5% tolerance, 1W power rating, metal oxide film composition, and -55°C to 200°C operating range. The substitute part is electrically equivalent and functionally interchangeable.

Q: What is the primary difference between these two parts?

A: The MO1CT52R162J is obsolete, while the MOS1CT528R162J is an active production part from the same manufacturer. The substitute features a more compact axial form factor (0.118" diameter × 0.354" length versus 0.157" diameter × 0.472" length) and a slightly higher temperature coefficient (±300ppm/°C versus ±200ppm/°C).

Q: Will the smaller physical dimensions of MOS1CT528R162J affect PCB layout compatibility?

A: The reduced dimensions of the substitute part typically provide improved PCB layout flexibility. Existing designs using the larger MO1CT52R162J can accommodate the smaller MOS1CT528R162J without modification. Verify available PCB space to confirm adequate clearance for the substitute's 0.118" diameter and 0.354" length.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both MO1CT52R162J and MOS1CT528R162J are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the temperature coefficient difference, and does it affect circuit performance?

A: The MO1CT52R162J specifies ±200ppm/°C, while MOS1CT528R162J specifies ±300ppm/°C. For general-purpose applications, this variance is within acceptable tolerance and does not restrict substitution. Applications requiring tighter temperature stability should evaluate specific circuit requirements.

Q: Is the substitute part available in the same packaging format?

A: Both parts use axial through-hole packaging. The MOS1CT528R162J is supplied in cut tape (CT) packaging, while the MO1CT52R162J packaging format is not specified in available data. Both are suitable for through-hole PCB assembly.