LM26CIM5-SPA Temperature Sensor Equivalent & Substitute Parts

Part Overview

The LM26CIM5-SPA is a thermostat temperature sensor manufactured by Texas Instruments, designed for thermal management applications requiring active-low open-drain output. This component operates as a temperature threshold detector with a fixed switching point of 75°C and is classified as obsolete. Due to its obsolete product status, identifying equivalent substitute parts with identical electrical and mechanical specifications is essential for system continuity and procurement planning.

Substiute Parts

LM26CIM5-SPA

Texas InstrumentsIn Stock: 23549LM26CIM5-SPA Datasheet

Current PartRFQ

LM26CIM5-SPA/NOPB

Texas InstrumentsIn Stock: 12873LM26CIM5-SPA/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM26CIM5-SPA is determined by strict equivalence across the following critical parameters:

• Switching temperature threshold of 75°C
• Active-low open-drain output configuration
• Supply voltage compatibility (2.7 V ~ 5.5 V)
• Thermal accuracy of ±3°C
• SOT-23-5 surface-mount package
• Operating temperature range of -55°C ~ 125°C
• Selectable hysteresis functionality

The LM26CIM5-SPA/NOPB qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction between these parts is packaging format and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the LM26CIM5-SPA and LM26CIM5-SPA/NOPB are functionally equivalent for thermal threshold detection applications. Selection between these parts should be based on the following criteria:

LM26CIM5-SPA/NOPB is the preferred substitute when:

• ROHS3 compliance is required by design specifications or regulatory requirements
• Tape & Reel packaging is compatible with automated assembly processes
• Supply chain availability favors the compliant variant

LM26CIM5-SPA may be retained when:

• Legacy system documentation specifies the original part number
• Bulk packaging format is required for specific procurement workflows
• RoHS compliance is not a design constraint

Both parts share identical electrical performance, thermal characteristics, and package footprint, ensuring direct PCB-level compatibility without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can LM26CIM5-SPA/NOPB be used as a direct replacement for LM26CIM5-SPA?

A: Yes. Both parts are electrically and mechanically identical. The primary differences are packaging format (Tape & Reel versus bulk) and RoHS compliance status. No circuit modifications are required for substitution.

Q: What does the "/NOPB" suffix indicate?

A: The "/NOPB" designation indicates the part is supplied in Tape & Reel packaging format without plumbum (lead-free, RoHS3 compliant). The base LM26CIM5-SPA is supplied in bulk packaging.

Q: Are there any thermal performance differences between these parts?

A: No. Both parts maintain identical switching temperature (75°C), accuracy (±3°C), and operating temperature range (-55°C ~ 125°C).

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. Both parts use the SOT-23-5 package with identical pinout and footprint. No PCB redesign is necessary.

Q: Why is RoHS compliance status different between these parts?

A: The LM26CIM5-SPA/NOPB variant was manufactured to meet ROHS3 compliance requirements, while the original LM26CIM5-SPA predates or does not meet these standards. Both are functionally equivalent.

Q: What is the impact of selecting the RoHS-compliant variant?

A: Selecting LM26CIM5-SPA/NOPB ensures compliance with RoHS3 regulations for applications subject to these requirements. There is no performance impact; electrical and thermal characteristics remain identical.