LM361N Equivalent & Substitute Parts

Part Overview

The LM361N is a differential comparator IC manufactured by Texas Instruments, designed for precision voltage comparison applications. It features complementary TTL output stages and operates across a wide supply voltage range of ±5V to ±15V. The LM361N is classified as an obsolete product, which necessitates identification of functionally equivalent alternatives for new designs or production continuity. The part is housed in a 14-DIP package suitable for through-hole mounting applications.

Substiute Parts

LM361N

Texas InstrumentsIn Stock: 1891LM361N Datasheet

Current PartRFQ

LM361N/NOPB

Texas InstrumentsIn Stock: 24158LM361N/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM361N is determined by strict equivalence across the following critical parameters:

• Differential comparator topology with 2 elements
• Complementary TTL output configuration
• Supply voltage range: ±5V ~ 15V
• Input offset voltage: 5mV @ 5V maximum
• Input bias current: 10µA @ 5V maximum
• Propagation delay: 20ns maximum
• 14-DIP through-hole package format
• Operating temperature range: 0°C ~ 70°C

The LM361N/NOPB qualifies as a direct substitute, maintaining identical electrical specifications and package configuration while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The LM361N/NOPB is the direct equivalent substitute for the LM361N. Both parts maintain identical electrical performance specifications and physical packaging. The primary distinction lies in product lifecycle status and regulatory compliance:

The LM361N carries obsolete status with RoHS non-compliance classification. The LM361N/NOPB is an active product meeting ROHS3 compliance requirements, making it the preferred selection for new designs and applications requiring regulatory adherence. Both parts are manufactured by Texas Instruments and are pin-compatible within 14-DIP through-hole mounting configurations.

For applications where the original LM361N is specified, direct substitution with LM361N/NOPB requires no circuit modifications or design changes. Electrical performance, timing characteristics, and thermal behavior remain equivalent across both part numbers.

Frequently Asked Questions (FAQ)

Q: Can LM361N/NOPB be used as a direct replacement for LM361N?

A: Yes. The LM361N/NOPB is electrically and mechanically identical to the LM361N. All electrical parameters, including supply voltage range, input offset voltage, propagation delay, and output characteristics match exactly. Both use the same 14-DIP package with identical pin assignments.

Q: What is the difference between LM361N and LM361N/NOPB?

A: The primary differences are product status and compliance certifications. The LM361N is obsolete and RoHS non-compliant. The LM361N/NOPB is an active product with ROHS3 compliance. Electrical specifications and package format are identical.

Q: Is the 14-DIP package compatible with my existing PCB design?

A: Yes, both the LM361N and LM361N/NOPB use the same 14-DIP (0.300", 7.62mm) through-hole package. No PCB modifications are required for substitution.

Q: What supply voltages are supported by these comparators?

A: Both parts operate with supply voltages ranging from ±5V to ±15V, supporting single or dual supply configurations within this range.

Q: Are there any temperature range limitations?

A: Both the LM361N and LM361N/NOPB operate across the industrial temperature range of 0°C to 70°C. No derating is required within this range.