Equivalent & Substitute Parts: 100439-3

Part Overview

The Yageo Nexensos 100439-3 is a nickel RTD (Resistance Temperature Detector) temperature sensor designed for thermal measurement applications. This component features a 1 kOhm resistance at 0°C with a temperature coefficient of 6370 ppm/°C, operating across a range of -60°C to 200°C. The device is packaged in a 2-SIP through-hole configuration with PC pin termination.

The 100439-3 is classified as obsolete, indicating discontinuation from the manufacturer. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this sensor.

Substiute Parts

100439-3

Yageo NexensosIn Stock: 1187100439-3 Datasheet

Current PartRFQ

ND1K0.520.2FW.B.007

Innovative Sensor Technology, USA DivisionIn Stock: 1435ND1K0.520.2FW.B.007 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for RTD temperature sensors is determined by alignment across the following critical parameters:

Primary Substitution Criteria:

• Resistance value at 0°C (1 kOhms)
• RTD material composition (Nickel)
• Operating temperature range (-60°C ~ 200°C)
• Temperature coefficient (within acceptable tolerance range)
• Mounting classification (Through Hole)

The substitute part ND1K0.520.2FW.B.007 meets the primary substitution criteria. Both components utilize nickel as the RTD material, maintain identical 1 kOhm resistance at 0°C, and operate within the same temperature range. The temperature coefficient of the substitute (6180 ppm/°C) is within acceptable variance of the original specification (6370 ppm/°C), representing a 2.99% deviation. Both devices support through-hole mounting configurations.

Secondary Considerations: Package configuration differs between the main part (2-SIP with PC pins) and the substitute (Radial with wire leads). This difference requires mechanical and electrical integration assessment during implementation. Current rating specifications also differ (5 mA versus 0.1 mA), reflecting different measurement circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The ND1K0.520.2FW.B.007 is classified as Active, ensuring ongoing manufacturer support, availability, and compliance with current regulatory standards. The 100439-3 is obsolete, limiting future procurement options and technical support.

Compliance and Certifications: The substitute part ND1K0.520.2FW.B.007 carries RoHS3 compliance certification and REACH Unaffected status, indicating alignment with current environmental and regulatory requirements. The ECCN classification of EAR99 and HTSUS code 8533.29.0000 provide clear export and tariff classification. Moisture Sensitivity Level (MSL) rating of 1 (Unlimited) indicates no moisture-related handling restrictions.

Functional Equivalence: Both components operate as nickel RTD sensors with identical resistance values and overlapping temperature ranges. The 1.9% difference in temperature coefficient (6180 ppm/°C versus 6370 ppm/°C) falls within typical RTD manufacturing tolerances and does not preclude functional substitution in standard temperature measurement applications.

Integration Considerations: Physical package differences (2-SIP with PC pins versus Radial with wire leads) require circuit board layout and connector interface modifications. Current rating differences (5 mA versus 0.1 mA) may necessitate measurement circuit adjustments to maintain signal integrity and minimize self-heating effects.

Frequently Asked Questions (FAQ)

Q: Can the ND1K0.520.2FW.B.007 directly replace the 100439-3 without circuit modifications?

A: Direct pin-for-pin replacement is not possible due to package configuration differences. The 100439-3 uses a 2-SIP package with PC pins, while the substitute uses a radial package with wire leads. Circuit board layout and connector interfaces require modification to accommodate the different termination style.

Q: What is the significance of the temperature coefficient difference between the two parts?

A: The temperature coefficient difference of 190 ppm/°C (6370 versus 6180 ppm/°C) represents a 2.99% variance. This difference is within typical RTD manufacturing tolerances and does not affect functional substitution in standard temperature measurement applications. However, applications requiring high-precision temperature calibration should account for this variance in system calibration procedures.

Q: How do the current ratings affect sensor selection?

A: The 100439-3 operates at 5 mA while the ND1K0.520.2FW.B.007 operates at 0.1 mA. The lower current rating of the substitute reduces self-heating effects, which can improve measurement accuracy in sensitive applications. Measurement circuits must be designed to accommodate the specified current rating of the selected component.

Q: Are there any regulatory or compliance advantages to selecting the substitute part?

A: The ND1K0.520.2FW.B.007 carries active RoHS3 compliance and REACH Unaffected certification, ensuring alignment with current environmental regulations. The 100439-3, being obsolete, may not meet current regulatory requirements for new designs or applications subject to environmental compliance mandates.

Q: What packaging considerations apply to the substitute part?

A: The ND1K0.520.2FW.B.007 is supplied in Tray packaging with an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling. This simplifies inventory management and reduces the need for specialized storage conditions.

Q: Is the substitute part suitable for the full operating temperature range of the original component?

A: Both components operate across the identical temperature range of -60°C to 200°C. The substitute part is functionally suitable for applications requiring operation across this full range.