SIL08M103J Equivalent & Substitute Parts

Part Overview

The SIL08M103J is a 4-resistor network array manufactured by TE Connectivity Passive Product, featuring 10k Ohm isolated resistors in an 8-SIP through-hole package. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part delivers 200mW power per element with ±5% tolerance and ±200ppm/°C temperature coefficient across an operating range of -55°C to 125°C.

Substiute Parts

SIL08M103J

TE Connectivity Passive ProductIn Stock: 879SIL08M103J Datasheet

Current PartRFQ

4608X-102-103LF

Bourns Inc.In Stock: 21814608X-102-103LF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SIL08M103J is determined by the following critical parameters:

• Resistance Value: Must be 10k Ohm
• Number of Resistors: Must be 4 elements
• Circuit Configuration: Must be Isolated topology
• Package Format: Must be 8-SIP
• Mounting Technology: Must be Through Hole
• Operating Temperature Range: Must support -55°C to 125°C minimum
• Compliance: Must maintain ROHS3 compliance

The substitute part 4608X-102-103LF from Bourns Inc. satisfies all mandatory substitution criteria. While this substitute offers improved specifications in tolerance (±2% versus ±5%) and power rating (300mW versus 200mW per element), these enhancements do not prevent functional equivalence. The substitute maintains identical resistance value, package configuration, pin count, and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The 4608X-102-103LF from Bourns Inc. serves as a direct functional equivalent to the obsolete SIL08M103J. Selection of this substitute is supported by the following factors:

Product Status: The SIL08M103J is classified as obsolete, whereas the 4608X-102-103LF maintains active production status, ensuring long-term availability and supply chain continuity.

Compliance Alignment: Both components maintain ROHS3 compliance, satisfying regulatory requirements for new designs and production environments.

Physical Compatibility: Dimensional specifications are equivalent within manufacturing tolerances. Both components feature 8-SIP through-hole packages with identical pin counts and maximum seated heights, enabling direct PCB footprint compatibility.

Performance Enhancement: The substitute provides superior specifications including tighter tolerance (±2% versus ±5%), higher power dissipation capability (300mW versus 200mW per element), and improved temperature stability (±100ppm/°C versus ±200ppm/°C). These characteristics ensure the substitute performs within or exceeds the original design envelope.

Environmental Specifications: Both components support the identical operating temperature range of -55°C to 125°C, maintaining thermal performance across all specified conditions.

Frequently Asked Questions (FAQ)

Q: Can the 4608X-102-103LF replace the SIL08M103J in existing designs?

A: Yes. The 4608X-102-103LF is functionally equivalent for direct substitution. Both components feature identical 10k Ohm resistance values, 4-resistor isolated configuration, 8-SIP package format, and through-hole mounting. Physical dimensions are equivalent within manufacturing tolerances, and both maintain ROHS3 compliance.

Q: What are the key differences between these two parts?

A: The primary differences are product status and performance specifications. The SIL08M103J is obsolete, while the 4608X-102-103LF is in active production. The substitute offers improved tolerance (±2% versus ±5%), higher power rating per element (300mW versus 200mW), and superior temperature coefficient stability (±100ppm/°C versus ±200ppm/°C).

Q: Are the physical packages identical?

A: The packages are equivalent for PCB mounting purposes. Both use 8-SIP through-hole configuration with maximum seated height of 0.200" (5.08mm). Dimensional variations (0.800" versus 0.798" length, 0.098" width for both) fall within standard manufacturing tolerances and do not affect board-level compatibility.

Q: Does the improved tolerance of the substitute affect circuit design?

A: The tighter tolerance of the 4608X-102-103LF (±2%) is a performance enhancement that does not negatively impact circuits designed for the original ±5% tolerance. Circuits will operate within tighter resistance specifications, which is beneficial for precision applications.

Q: Is the higher power rating of the substitute a concern?

A: No. The 300mW per element rating of the 4608X-102-103LF exceeds the 200mW specification of the original part. This provides additional thermal margin and does not create compatibility issues. The substitute can safely operate in applications designed for the lower power rating.

Q: Are both components RoHS compliant?

A: Yes. Both the SIL08M103J and 4608X-102-103LF maintain ROHS3 compliance, satisfying regulatory requirements for electronic component manufacturing and assembly.

Q: What is the operating temperature range for both parts?

A: Both components operate across the identical temperature range of -55°C to 125°C, ensuring thermal performance consistency across all specified environmental conditions.