LM306DRE4 Equivalent & Substitute Parts

Part Overview

The LM306DRE4 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 LM306DRE4 is classified as obsolete, making identification of active equivalent parts essential for new designs and production continuity. Substitute parts must maintain identical electrical specifications and package compatibility to ensure direct replacement capability.

Substiute Parts

LM306DRE4

Texas InstrumentsIn Stock: 1082LM306DRE4 Datasheet

Current PartRFQ

LM306D

Texas InstrumentsIn Stock: 1806LM306D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM306DRE4 is based on strict equivalence across the following critical parameters:

• Differential Comparator Type: Single element differential configuration
• Output Configuration: Push-Pull TTL output
• Supply Voltage Range: ±7.5V to ±12V dual supply operation
• Electrical Specifications: Input offset voltage maximum of 5mV @ ±12V, input bias current maximum of 40µA @ ±12V, quiescent current maximum of 10mA
• Package Format: 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 parameters, package specifications, and compliance certifications. The primary distinction is product status: LM306D is active production, whereas LM306DRE4 is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The LM306D is the appropriate substitute for the obsolete LM306DRE4. Both parts are manufactured by Texas Instruments and maintain complete electrical and mechanical equivalence. The LM306D is in active production status, ensuring availability for new designs and ongoing production requirements.

Selection of LM306D over LM306DRE4 is justified by:

• Active product status enabling reliable long-term supply chain support
• Identical electrical performance across all specified parameters
• Identical package and mounting specifications for direct PCB compatibility
• Equivalent compliance certifications (ROHS3, MSL Level 1)
• No design modifications required for direct substitution

Frequently Asked Questions (FAQ)

Q: Can LM306D be used as a direct replacement for LM306DRE4 in existing designs?

A: Yes. The LM306D is electrically and mechanically equivalent to LM306DRE4. All electrical parameters, supply voltage requirements, output characteristics, and package specifications are identical. Direct substitution requires no circuit modifications.

Q: What is the primary reason for substituting LM306DRE4?

A: LM306DRE4 is classified as obsolete. LM306D is the active production equivalent, ensuring supply chain continuity and long-term availability.

Q: Are there any differences in packaging between LM306DRE4 and LM306D?

A: Both parts use the 8-SOIC surface mount package with identical dimensions (0.154" or 3.90mm width). PCB footprints are directly compatible.

Q: Do both parts meet the same compliance standards?

A: Yes. Both LM306DRE4 and LM306D are ROHS3 compliant with MSL Level 1 rating, indicating unlimited moisture sensitivity protection.

Q: What are the critical electrical parameters that define substitution compatibility?

A: Substitution compatibility is determined by: differential comparator configuration, push-pull TTL output type, ±7.5V to ±12V dual supply voltage range, 5mV maximum input offset voltage, 40µA maximum input bias current, and 10mA maximum quiescent current.