4306R-102-221 Equivalent & Substitute Parts

Part Overview

The Bourns 4306R-102-221 is a 3-resistor isolated network array with 220 Ohm resistance per element, rated at 300mW power dissipation per element. This through-hole component is designed for applications requiring matched resistor networks in a compact 6-SIP package. The part is currently active in production and widely used in analog signal conditioning, impedance matching, and biasing circuits. Identifying equivalent and substitute parts is necessary to ensure design flexibility, optimize procurement strategies, and maintain supply chain continuity across manufacturing environments.

Substiute Parts

4306R-102-221

Bourns Inc.In Stock: 8654306R-102-221 Datasheet

Current PartRFQ

4306R-102-221LF

Bourns Inc.In Stock: 29004306R-102-221LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4306R-102-221 is determined by strict equivalence across the following critical parameters:

• Resistance value: 220 Ohms
• Tolerance: ±2%
• Number of resistor elements: 3
• Circuit configuration: Isolated
• Power rating per element: 300mW
• Temperature coefficient: ±100ppm/°C
• Package type: 6-SIP
• Mounting technology: Through Hole
• Pin count: 6
• Operating temperature range: -55°C ~ 125°C
• Resistor-ratio-drift: 50ppm/°C

The 4306R-102-221LF variant meets all electrical and mechanical specifications required for direct substitution. The primary distinction between these parts is RoHS compliance status and lead finish specification, which do not affect functional performance or electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the 4306R-102-221 and 4306R-102-221LF are active production parts from Bourns Inc. with identical electrical and mechanical specifications. Selection between these parts should be based on regulatory and compliance requirements:

The 4306R-102-221LF is ROHS3 compliant and is the preferred choice for applications subject to RoHS directives or where lead-free manufacturing processes are mandated. The 4306R-102-221 is RoHS non-compliant and suitable for applications without RoHS requirements or legacy designs where lead-based finishes are acceptable.

Both parts are REACH Affected and carry the same ECCN (EAR99) and HTSUS (8533.21.0050) classifications. Inventory availability should be evaluated based on procurement timelines and supply chain requirements.

Frequently Asked Questions (FAQ)

Q: Can the 4306R-102-221LF be used as a direct replacement for the 4306R-102-221?

A: Yes. Both parts are electrically and mechanically identical. The LF variant differs only in RoHS compliance status and lead finish specification. Substitution is valid for all applications where the original part was specified.

Q: What does the "LF" suffix indicate?

A: The "LF" suffix denotes lead-free finish and ROHS3 compliance. This indicates the part meets RoHS Directive 2011/65/EU requirements and uses lead-free solder-compatible finishes.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts use the identical 6-SIP package with the same physical dimensions (0.584" L x 0.085" W, 14.83mm x 2.16mm) and pin configuration. PCB footprints and assembly processes are interchangeable.

Q: What is the significance of the 50ppm/°C resistor-ratio-drift specification?

A: This parameter defines the temperature stability of the resistor matching characteristics within the array. A 50ppm/°C drift ensures that the relative tolerance between the three resistor elements remains stable across the -55°C to 125°C operating range, critical for precision analog applications.

Q: Can these parts be used interchangeably in legacy designs?

A: Yes, provided the design does not explicitly prohibit RoHS-compliant components. The 4306R-102-221LF is backward compatible with designs originally specified for the 4306R-102-221.