LM306DR Equivalent & Substitute Parts

Part Overview

The LM306DR is a differential comparator IC manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device features push-pull TTL output configuration and operates across a dual supply voltage range of ±7.5V to ±12V. The LM306DR is classified as obsolete, making identification of active equivalent parts essential for ongoing production and design continuity. Substitute parts must maintain identical electrical characteristics and package specifications to ensure direct replacement capability.

Substiute Parts

LM306DR

Texas InstrumentsIn Stock: 1203LM306DR Datasheet

Current PartRFQ

LM306D

Texas InstrumentsIn Stock: 1806LM306D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM306DR is determined by strict equivalence across the following critical parameters:

• Differential Comparator Architecture: Single element differential configuration
• Output Configuration: Push-Pull TTL output type
• Supply Voltage Range: ±7.5V to ±12V dual supply operation
• Electrical Performance: Input offset voltage maximum of 5mV @ ±12V; input bias current maximum of 40µA @ ±12V; quiescent current maximum of 10mA
• Package Specification: 8-SOIC surface mount package with 0.154" (3.90mm) width
• Operating Temperature Range: 0°C to 70°C
• Compliance Standards: ROHS3 compliance and MSL Level 1 rating

The LM306D qualifies as a direct substitute based on identical electrical specifications, package configuration, and compliance certifications. The primary distinction is product status: LM306D is active, whereas LM306DR is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The LM306D is the recommended substitute for the obsolete LM306DR. Both parts are manufactured by Texas Instruments and maintain complete electrical and mechanical equivalence. The LM306D carries active product status, ensuring ongoing availability and supply chain continuity. Both parts satisfy ROHS3 compliance requirements and carry MSL Level 1 moisture sensitivity ratings, indicating no special handling requirements during storage or assembly.

Selection of the LM306D over the LM306DR is justified by product lifecycle considerations: the LM306D remains in active production, whereas the LM306DR is obsolete. No electrical performance trade-offs exist between these parts. The packaging specification remains identical, permitting direct PCB-level substitution without design modification.

Frequently Asked Questions (FAQ)

Q: Can the LM306D directly replace the LM306DR on existing PCBs?

A: Yes. The LM306D is a direct pin-for-pin and functionally equivalent replacement. Both parts use the 8-SOIC surface mount package with identical pinout, electrical characteristics, and operating parameters. No PCB redesign is required.

Q: What is the primary reason for substituting the LM306DR?

A: The LM306DR is classified as obsolete. The LM306D is the active equivalent part from Texas Instruments, ensuring continued availability and supply chain reliability for new production and design implementations.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the LM306DR and LM306D maintain identical ROHS3 compliance status and MSL Level 1 moisture sensitivity ratings. No additional handling or compliance considerations apply to the LM306D.

Q: Do the electrical specifications differ between LM306DR and LM306D?

A: No. Both parts share identical electrical specifications, including supply voltage range (±7.5V to ±12V), input offset voltage (5mV maximum @ ±12V), input bias current (40µA maximum @ ±12V), and quiescent current (10mA maximum).

Q: What packaging options are available for the LM306D?

A: The LM306D is supplied in tube packaging. The physical package specification remains 8-SOIC with 0.154" (3.90mm) width, matching the LM306DR footprint exactly.

Q: Are there any temperature range limitations when substituting the LM306D?

A: No. The LM306D operates across the identical temperature range of 0°C to 70°C as the LM306DR, with no performance degradation or derating requirements.