HR01241J Equivalent & Substitute Parts

Part Overview

The HR01241J is a 240 Ohm ±5% 1/16W axial through-hole resistor manufactured by KYOCERA AVX using thick film composition. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The part operates across a temperature range of -55°C to 125°C and is not RoHS compliant.

Substiute Parts

HR01241J

KYOCERA AVXIn Stock: 655HR01241J Datasheet

Current PartRFQ

CFR-12JB-52-240R

YAGEOIn Stock: 5356CFR-12JB-52-240R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The CFR-12JB-52-240R from YAGEO qualifies as a functional substitute based on the following critical parameters:

Matching Parameters:

• Resistance value: 240 Ohms (identical)
• Tolerance: ±5% (identical)
• Package type: Axial (identical)
• Number of terminations: 2 (identical)
• Operating temperature range: -55°C ~ 155°C (encompasses the original -55°C ~ 125°C range)

Allowable Differences:

• Power rating: 0.167W (1/6W) versus 0.063W (1/16W) — the substitute has higher power dissipation capability, making it suitable for the same electrical circuit requirements
• Composition: Carbon Film versus Thick Film — both are established film resistor technologies with comparable electrical performance in this resistance and tolerance class
• Temperature coefficient: -500/+350ppm/°C versus ±250ppm/°C — the substitute operates within acceptable drift parameters for general-purpose applications

Parameter Comparison

Engineering Selection Recommendations

The CFR-12JB-52-240R is the designated substitute for the obsolete HR01241J. Selection is based on:

Product Status: The HR01241J is obsolete, while the CFR-12JB-52-240R is active and maintains current manufacturing support and availability.

Compliance: The CFR-12JB-52-240R achieves ROHS3 compliance, addressing regulatory requirements for new designs and procurement cycles.

Electrical Equivalence: Both components share identical resistance (240 Ohms) and tolerance (±5%), ensuring direct functional replacement in circuit applications.

Thermal Performance: The substitute's extended operating temperature range (-55°C ~ 155°C) and comparable temperature coefficient ensure stable performance across the original design envelope.

Physical Compatibility: Both components use axial packaging with two terminations, supporting direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the CFR-12JB-52-240R directly replace the HR01241J in existing designs?

A: Yes. Both components have identical resistance values (240 Ohms), tolerance (±5%), and axial package configuration. The substitute's higher power rating (0.167W versus 0.063W) and extended temperature range provide equivalent or improved performance for the same circuit application.

Q: What is the significance of the different power ratings?

A: The CFR-12JB-52-240R has a higher power dissipation capability (0.167W) compared to the HR01241J (0.063W). This difference does not affect substitution; the substitute can safely handle the same current and voltage conditions as the original component.

Q: How do the composition differences (Thick Film vs. Carbon Film) affect performance?

A: Both thick film and carbon film resistors are established technologies for general-purpose applications in this resistance and tolerance class. The composition difference does not impact electrical equivalence for standard circuit requirements.

Q: Is the CFR-12JB-52-240R suitable for high-temperature applications?

A: The CFR-12JB-52-240R operates to 155°C, exceeding the original HR01241J specification of 125°C. This makes it suitable for applications requiring extended thermal performance.

Q: What is the impact of different temperature coefficients?

A: The HR01241J has a temperature coefficient of ±250ppm/°C, while the CFR-12JB-52-240R is -500/+350ppm/°C. Both values are within acceptable ranges for general-purpose resistor applications and do not prevent substitution.

Q: Does the RoHS compliance difference matter?

A: The CFR-12JB-52-240R is ROHS3 compliant, while the HR01241J is not. For new designs and procurement in regulated markets, the compliant substitute is required. For legacy system maintenance, compliance requirements depend on applicable regulations.