SIL08M103G Equivalent & Substitute Parts

Part Overview

The SIL08M103G is a 10k Ohm isolated 4-resistor network array manufactured by TE Connectivity Passive Product in an 8-SIP through-hole package. This component is classified as Active product status and is designed for applications requiring precision resistor networks with ±2% tolerance and ±200ppm/°C temperature coefficient. The part delivers 200mW power per element across its four isolated resistor elements.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter ranges for this resistor array category. Alternatives may be selected based on enhanced performance characteristics, improved compliance certifications, or inventory availability while preserving core functional requirements.

Substiute Parts

SIL08M103G

TE Connectivity Passive ProductIn Stock: 968SIL08M103G Datasheet

Current PartRFQ

4608X-102-103LF

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

UpgradeRFQ

77083103P

CTS Resistor ProductsIn Stock: 717177083103P Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SIL08M103G is determined by strict adherence to the following core parameters:

Critical Matching Parameters:

• Resistance value: 10k Ohm (exact match required)
• Tolerance: ±2% (exact match required)
• Number of resistors: 4 (exact match required)
• Number of pins: 8 (exact match required)
• Circuit type: Isolated (exact match required)
• Package / Case: 8-SIP (exact match required)
• Mounting type: Through Hole (exact match required)
• Operating temperature range: -55°C to 125°C (exact match required)

Allowable Variation Parameters:

• Power per element: May exceed 200mW (higher power rating is acceptable)
• Temperature coefficient: May be equal to or better than ±200ppm/°C (lower absolute value is acceptable)
• Physical dimensions: Minor variations within standard 8-SIP package tolerances are acceptable
• Compliance certifications: Enhanced certifications are acceptable

The identified substitute parts 4608X-102-103LF and 77083103P satisfy all critical matching parameters while offering variations in power dissipation capability and temperature stability characteristics.

Parameter Comparison

Engineering Selection Recommendations

4608X-102-103LF (Bourns Inc.) - Upgrade Substitute:

The 4608X-102-103LF provides enhanced performance characteristics relative to the SIL08M103G. This substitute delivers 300mW power per element compared to 200mW in the original part, providing 50% additional power dissipation capacity. The temperature coefficient is improved to ±100ppm/°C, offering superior thermal stability. The part carries ROHS3 compliance and REACH Unaffected status, meeting modern environmental and regulatory requirements. Physical dimensions are within standard 8-SIP package tolerances. This substitute is suitable for applications requiring higher power handling or improved temperature stability.

77083103P (CTS Resistor Products) - Substitute with Power Derating:

The 77083103P maintains full electrical compatibility with the SIL08M103G while offering improved temperature coefficient performance at ±100ppm/°C. However, this substitute provides only 100mW power per element, representing a 50% reduction in power dissipation capability compared to the original part. This substitute is suitable only for applications where power dissipation per element does not exceed 100mW. The part carries ROHS3 compliance and REACH Unaffected status. Physical dimensions are within standard 8-SIP package tolerances with a slightly reduced seated height of 4.95mm.

Both substitute parts maintain Active product status and are available in production quantities.

Frequently Asked Questions (FAQ)

Q: Can the 4608X-102-103LF directly replace the SIL08M103G in all applications?

A: The 4608X-102-103LF is electrically and mechanically compatible with the SIL08M103G. The higher power rating (300mW vs. 200mW per element) and improved temperature coefficient (±100ppm/°C vs. ±200ppm/°C) represent enhanced performance characteristics. Direct substitution is valid for all applications where the original part was specified.

Q: Under what conditions is the 77083103P suitable as a substitute?

A: The 77083103P is suitable for applications where the power dissipation per resistor element does not exceed 100mW. If the circuit design requires 200mW power per element as specified in the SIL08M103G, the 77083103P is not appropriate. The improved temperature coefficient (±100ppm/°C) makes this part suitable for temperature-sensitive applications within the 100mW power constraint.

Q: Are there physical compatibility concerns when substituting these parts?

A: All three parts use the 8-SIP through-hole package with dimensions within standard tolerances. The 4608X-102-103LF and SIL08M103G have identical seated heights of 5.08mm. The 77083103P has a slightly reduced seated height of 4.95mm, which remains compatible with standard 8-SIP footprints. No PCB redesign is required for any of these substitutions.

Q: What is the difference in compliance certifications between these parts?

A: The SIL08M103G has RoHS status listed as "Not applicable" and REACH status as "Vendor Undefined." Both substitute parts carry ROHS3 Compliant status and REACH Unaffected status, indicating compliance with current environmental regulations. If regulatory compliance is a design requirement, the substitute parts provide documented certification.

Q: How do the temperature coefficients affect circuit performance?

A: The SIL08M103G has a temperature coefficient of ±200ppm/°C. Both substitute parts offer ±100ppm/°C, representing a 50% improvement in temperature stability. This means resistance values drift less with temperature changes. For applications requiring tight resistance tolerance across the -55°C to 125°C operating range, the substitute parts provide superior performance.

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

A: Yes. All three parts share the 8-SIP through-hole package, 8-pin configuration, and identical pin assignments for isolated 4-resistor networks. PCB footprints designed for the SIL08M103G accommodate all three parts without modification. Component placement and soldering procedures remain unchanged.