LM2917MX Frequency to Voltage Converter IC - Equivalent & Substitute Parts

Part Overview

The LM2917MX is a Frequency to Voltage Converter IC designed for 10 kHz operation with ±0.3% linearity, packaged in a 14-SOIC surface mount configuration. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The LM2917MX/NOPB represents the direct active substitute with identical electrical specifications and enhanced compliance status.

Substiute Parts

LM2917MX

Texas InstrumentsIn Stock: 3157LM2917MX Datasheet

Current PartRFQ

LM2917MX/NOPB

Texas InstrumentsIn Stock: 6340LM2917MX/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM2917MX is determined by strict equivalence across the following critical parameters:

• Frequency operating range (10 kHz maximum)
• Linearity specification (±0.3%)
• Package type (14-SOIC with 0.154" width, 3.90mm)
• Mounting technology (Surface Mount)
• Functional classification (Frequency to Voltage Converter)
• Moisture sensitivity rating (MSL 1)

The LM2917MX/NOPB meets all these criteria as a direct substitute. The "/NOPB" designation indicates lead-free, RoHS3 compliant packaging supplied on tape and reel, while maintaining identical electrical performance and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The LM2917MX/NOPB is the direct functional equivalent for the obsolete LM2917MX. Selection of the LM2917MX/NOPB is supported by:

• Identical electrical specifications (10 kHz frequency range, ±0.3% linearity)
• Mechanical and pin compatibility (14-SOIC package)
• Active product status ensuring long-term availability
• ROHS3 compliance and lead-free construction meeting current regulatory requirements
• Equivalent moisture sensitivity rating (MSL 1)

For applications requiring the obsolete LM2917MX, direct substitution with LM2917MX/NOPB is electrically and mechanically valid without design modification.

Frequently Asked Questions (FAQ)

Q: Can LM2917MX/NOPB replace LM2917MX in existing designs?

A: Yes. The LM2917MX/NOPB is a direct substitute with identical electrical performance, frequency range, linearity, and 14-SOIC package configuration. No circuit redesign is required.

Q: What is the difference between LM2917MX and LM2917MX/NOPB?

A: The primary differences are product status (obsolete vs. active), RoHS compliance (non-compliant vs. ROHS3 compliant), and packaging format (bulk vs. tape & reel). Electrical specifications and package dimensions are identical.

Q: Are there any compatibility concerns with the packaging change?

A: No. Both parts use the same 14-SOIC (0.154", 3.90mm Width) package. The tape & reel format of the LM2917MX/NOPB is compatible with standard automated assembly equipment.

Q: What is the MSL rating and why does it matter?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Storage and handling follow standard practices with no special precautions required.

Q: Is the LM2917MX/NOPB suitable for new designs?

A: Yes. The LM2917MX/NOPB is active product status with ROHS3 compliance, making it the appropriate choice for new designs requiring a 10 kHz frequency to voltage converter in 14-SOIC packaging.