LM111H Equivalent & Substitute Parts

Part Overview

The LM111H is a general-purpose comparator IC manufactured by Texas Instruments, housed in a TO-99-8 metal can package for through-hole mounting. This device operates across a wide supply voltage range of 5V to 36V (single/dual) or ±2.5V to 18V, making it suitable for diverse analog signal comparison applications. The LM111H is classified as an active product with full production support and maintains ROHS3 compliance. Identifying equivalent and substitute parts is essential for design flexibility, supply chain continuity, and procurement optimization when the primary part becomes unavailable or when alternative sourcing is required.

Key Parameters

Parameter	Value
Manufacturer Part Number	LM111H
Manufacturer	Texas Instruments
Category	Linear
Type	General Purpose Comparator
Package / Case	TO-99-8 Metal Can
Mounting Type	Through Hole
Number of Elements	1
Output Type	DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL
Voltage - Supply, Single/Dual (±)	5V ~ 36V, ±2.5V ~ 18V
Voltage - Input Offset (Max)	3mV @ ±15V
Current - Input Bias (Max)	0.1µA @ ±15V
Current - Quiescent (Max)	6mA
Operating Temperature	-55°C ~ 125°C
Product Status	Active
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the LM111H is determined by strict equivalence across the following critical parameters:

Package Type: TO-99-8 metal can with through-hole mounting
Functional Classification: General-purpose comparator with single element
Output Configuration: DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL compatible outputs
Supply Voltage Range: 5V ~ 36V (single/dual) or ±2.5V ~ 18V
Input Offset Voltage: 3mV maximum at ±15V
Input Bias Current: 0.1µA maximum at ±15V
Quiescent Current: 6mA maximum
Operating Temperature Range: -55°C ~ 125°C
Regulatory Compliance: ROHS3 compliant, REACH unaffected, EAR99 classification

The LM111H/NOPB is identified as a parametric equivalent substitute based on identical electrical specifications, package configuration, and compliance certifications.

Parameter Comparison

Parameter	LM111H	LM111H/NOPB	Match Status
Manufacturer Part Number	LM111H	LM111H/NOPB	Equivalent
Manufacturer	Texas Instruments	Texas Instruments	Identical
Category	Linear	Linear	Identical
Type	General Purpose	General Purpose	Identical
Package / Case	TO-99-8 Metal Can	TO-99-8 Metal Can	Identical
Mounting Type	Through Hole	Through Hole	Identical
Number of Elements	1	1	Identical
Output Type	DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL	DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL	Identical
Voltage - Supply, Single/Dual (±)	5V ~ 36V, ±2.5V ~ 18V	5V ~ 36V, ±2.5V ~ 18V	Identical
Voltage - Input Offset (Max)	3mV @ ±15V	3mV @ ±15V	Identical
Current - Input Bias (Max)	0.1µA @ ±15V	0.1µA @ ±15V	Identical
Current - Quiescent (Max)	6mA	6mA	Identical
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	Identical
Product Status	Active	Active	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
REACH Status	REACH Unaffected	REACH Unaffected	Identical

Engineering Selection Recommendations

The LM111H and LM111H/NOPB are direct parametric equivalents suitable for interchangeable use in applications requiring a general-purpose comparator in TO-99-8 packaging. Both parts maintain active product status with full manufacturing support from Texas Instruments. Selection between these parts should be based on:

Regulatory Compliance: Both parts satisfy ROHS3 requirements and are REACH unaffected, making them suitable for applications subject to environmental regulations.
Supply Chain Availability: Either part may be selected based on current inventory levels and procurement lead times.
Certification Requirements: Both parts carry identical EAR99 export classification and HTSUS coding, ensuring consistent compliance documentation.
Moisture Sensitivity: Both parts are classified as MSL 1 (unlimited), indicating no special moisture handling requirements during storage or assembly.

No technical performance differentiation exists between these parts. Selection is driven by availability and supply chain considerations.

Frequently Asked Questions (FAQ)

Q: Can LM111H/NOPB be used as a direct replacement for LM111H?

A: Yes. The LM111H/NOPB is a parametric equivalent with identical electrical specifications, package configuration, and compliance certifications. Direct substitution is permissible without circuit modification.

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

A: The "/NOPB" suffix designates a lead-free packaging variant (No Plumbum/No Lead). Both LM111H and LM111H/NOPB are ROHS3 compliant and functionally equivalent.

Q: Are there any differences in operating temperature range between these parts?

A: No. Both parts operate across the identical temperature range of -55°C to 125°C.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. Both parts use the TO-99-8 metal can package with identical pinout and through-hole mounting configuration. No PCB layout modifications are required.

Q: What is the moisture sensitivity classification for these parts?

A: Both parts are classified as MSL 1 (Unlimited), indicating no special moisture control measures are required during storage, handling, or assembly.

Q: Are both parts currently in active production?

A: Yes. Both LM111H and LM111H/NOPB maintain active product status with full manufacturing support from Texas Instruments.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message