LM555J/883 Equivalent & Substitute Parts

Part Overview

The LM555J/883 is a 555-type timer/oscillator integrated circuit manufactured by Texas Instruments, designed for clock and timing applications. This single-channel timer operates across a wide temperature range (-55°C to 125°C) and is housed in an 8-CDIP package suitable for through-hole mounting. The device is classified as Active product status and maintains ROHS3 compliance. Substitute parts are identified when equivalent functional performance can be achieved within the specified electrical and mechanical parameter ranges while maintaining compatibility with the application circuit design.

Substiute Parts

LM555J/883

Texas InstrumentsIn Stock: 3551LM555J/883 Datasheet

Current PartRFQ

SE555P

Texas InstrumentsIn Stock: 8748SE555P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM555J/883 is determined by the following critical parameters:

Device Type Compatibility: The substitute must be a 555-type timer/oscillator (single-channel) to maintain functional equivalence.

Electrical Parameters: Supply voltage range, supply current, and maximum frequency must be compatible with the application circuit. The substitute voltage range must encompass or overlap with the main part's 5V to 15V specification. Supply current must not exceed application design limits.

Package and Mounting: The substitute must use through-hole mounting technology with compatible pin spacing (0.300" / 7.62mm standard DIP format).

Temperature Range: The substitute must support the full operating temperature range of -55°C to 125°C.

Compliance and Status: Both parts must maintain Active product status and ROHS3 compliance for regulatory consistency.

The SE555P meets these substitution criteria as a 555-type timer with compatible electrical characteristics, through-hole mounting, and equivalent temperature range.

Parameter Comparison

Engineering Selection Recommendations

SE555P as Primary Substitute: The SE555P is suitable for applications requiring 555-type timer functionality with the specified electrical and thermal parameters. Both the main part (LM555J/883) and substitute (SE555P) maintain Active product status and ROHS3 compliance, ensuring regulatory consistency. The SE555P operates within an expanded supply voltage range (4.5V to 18V) compared to the main part, providing additional design flexibility. The substitute's lower supply current (10 mA versus 18.5 mA) may reduce power consumption in the application circuit. Both devices support the full -55°C to 125°C operating temperature range required for extended temperature applications.

Package Compatibility: Both parts use standard 8-pin DIP packages with 0.300" (7.62mm) pin spacing, ensuring direct board-level compatibility without layout modifications.

Compliance Verification: Both parts maintain ROHS3 compliance and Active product status, suitable for current production and procurement cycles.

Frequently Asked Questions (FAQ)

Q: Can SE555P directly replace LM555J/883 in existing circuit designs?

A: Yes. Both devices are 555-type timers with compatible pin configurations, operating temperature ranges (-55°C to 125°C), and through-hole DIP packages. The SE555P's expanded supply voltage range (4.5V to 18V) and lower supply current (10 mA) are compatible with applications designed for the LM555J/883 (5V to 15V, 18.5 mA).

Q: What are the key differences between LM555J/883 and SE555P?

A: The primary differences are frequency specification (51 kHz versus 100 kHz), supply voltage range (5V-15V versus 4.5V-18V), and supply current (18.5 mA versus 10 mA). Both maintain identical operating temperature ranges and package formats.

Q: Are there package compatibility concerns when substituting SE555P for LM555J/883?

A: No. Both devices use 8-pin DIP packages with standard 0.300" (7.62mm) pin spacing, enabling direct board-level substitution without PCB modifications.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both LM555J/883 and SE555P are ROHS3 compliant and maintain Active product status, meeting current regulatory and procurement standards.

Q: What supply voltage range should be used when substituting SE555P?

A: The SE555P operates across 4.5V to 18V. Applications designed for the LM555J/883 (5V to 15V) fall within this range and require no circuit modifications.