SIL08M273J Equivalent & Substitute Parts

Part Overview

The SIL08M273J is a 27k Ohm isolated 4-resistor network array manufactured by TE Connectivity Passive Product. This through-hole component features ±5% tolerance, 200mW power per element, and operates across -55°C to 125°C. The part is currently active in production with 832 pieces in stock. Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support applications requiring enhanced performance specifications such as improved tolerance or increased power dissipation.

Substiute Parts

SIL08M273J

TE Connectivity Passive ProductIn Stock: 880SIL08M273J Datasheet

Current PartRFQ

4608X-102-273LF

Bourns Inc.In Stock: 41644608X-102-273LF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SIL08M273J is determined by the following critical parameters:

Core Compatibility Requirements:

• Resistance value: 27k Ohm (exact match required)
• Number of resistors: 4 (exact match required)
• Number of pins: 8 (exact match required)
• Package type: 8-SIP (exact match required)
• Circuit type: Isolated (exact match required)
• Mounting type: Through Hole (exact match required)
• Operating temperature range: -55°C to 125°C (minimum requirement)

Performance Enhancement Parameters (Substitution Allowed):

• Tolerance: May be equal or tighter (±5% or better)
• Power per element: May be equal or higher (200mW or greater)
• Temperature coefficient: May be equal or lower in absolute value (±200ppm/°C or better)

The substitute part 4608X-102-273LF meets all core compatibility requirements and provides enhanced performance specifications across tolerance, power dissipation, and temperature stability.

Parameter Comparison

Engineering Selection Recommendations

SIL08M273J Selection Criteria:

• Primary choice when ±5% tolerance specification is acceptable
• Suitable for applications with standard thermal stability requirements (±200ppm/°C)
• Appropriate when power dissipation is limited to 200mW per element
• Recommended for cost-optimized designs where enhanced specifications are not required

4608X-102-273LF Selection Criteria:

• Select when tighter tolerance (±2%) is required for precision circuit applications
• Necessary for designs requiring higher power dissipation capability (300mW per element)
• Recommended for applications demanding superior temperature stability (±100ppm/°C)
• Preferred when ROHS3 compliance is a mandatory requirement
• Suitable for high-reliability applications where enhanced performance margins are beneficial

Both parts are active products with established supply availability. The 4608X-102-273LF provides performance enhancements across all variable parameters while maintaining identical core electrical and mechanical specifications.

Frequently Asked Questions (FAQ)

Q: Can the 4608X-102-273LF directly replace the SIL08M273J in existing designs?

A: Yes. Both parts share identical resistance value (27k Ohm), number of resistors (4), pin count (8), package type (8-SIP), circuit topology (Isolated), and operating temperature range (-55°C to 125°C). Physical dimensions are functionally equivalent. The substitute part provides enhanced specifications in tolerance, power rating, and temperature coefficient.

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

A: The 4608X-102-273LF offers three performance improvements: tighter tolerance (±2% versus ±5%), higher power per element (300mW versus 200mW), and superior temperature coefficient (±100ppm/°C versus ±200ppm/°C). All other electrical and mechanical parameters are identical.

Q: Are there any PCB layout or mounting considerations when switching between these parts?

A: No. Both parts use identical 8-SIP through-hole packaging with matching pin counts, seated heights (5.08mm maximum), and functionally equivalent dimensions (20.32mm x 2.50mm versus 20.27mm x 2.49mm). No PCB redesign is required.

Q: Which part should be selected for high-precision applications?

A: The 4608X-102-273LF is the appropriate choice for precision applications due to its ±2% tolerance and ±100ppm/°C temperature coefficient, compared to the SIL08M273J specifications of ±5% tolerance and ±200ppm/°C.

Q: What is the impact of the higher power rating on thermal management?

A: The 4608X-102-273LF supports 300mW per element versus 200mW for the SIL08M273J. This 50% increase in power dissipation capability provides additional design margin and reduces thermal stress in power-limited applications. No additional thermal management is required for equivalent power levels.

Q: Are there compliance differences between these parts?

A: The 4608X-102-273LF is ROHS3 compliant with REACH Unaffected status. The SIL08M273J has RoHS status listed as Not Applicable. Both parts carry EAR99 ECCN classification and identical HTSUS codes.

Q: Can the SIL08M273J be used in applications designed for the 4608X-102-273LF?

A: The SIL08M273J can be used only if the application tolerates the less stringent specifications: ±5% tolerance instead of ±2%, 200mW power per element instead of 300mW, and ±200ppm/°C temperature coefficient instead of ±100ppm/°C. Verification against specific circuit requirements is necessary.