Bourns 4606X-102-821 Equivalent & Substitute Parts

Part Overview

The Bourns 4606X-102-821 is a 3-resistor isolated network array with 820 Ohm resistance, ±2% tolerance, and 300mW power per element in a 6-SIP through-hole package. This part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts maintain identical electrical specifications while offering improved compliance status or alternative packaging options.

Key Parameters

Parameter	Value
Resistance	820 Ohm
Tolerance	±2%
Number of Resistors	3
Circuit Type	Isolated
Power Per Element	300mW
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 125°C
Number of Pins	6
Package Type	6-SIP
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution for the 4606X-102-821 is determined by strict equivalence across electrical and mechanical parameters. All substitute parts maintain identical resistance value, tolerance, power rating, temperature coefficient, and operating temperature range. The 6-SIP package and through-hole mounting type are preserved across all substitutes.

Substitutes are grouped into two categories:

Direct Substitutes (Same Series): Parts from the 4600X series maintain identical specifications with variations in packaging format and compliance status only.

Cross-Series Substitutes (4300R Series): Parts from the 4300R series provide functional equivalence with minor dimensional variations and different resistor-ratio-drift specifications, while maintaining all critical electrical parameters.

Parameter Comparison

Parameter	4606X-102-821	4606X-102-821LF	4306R-102-821	4306R-102-821LF
Manufacturer	Bourns Inc.	Bourns Inc.	Bourns Inc.	Bourns Inc.
Series	4600X	4600X	4300R	4300R
Resistance (Ohms)	820	820	820	820
Tolerance	±2%	±2%	±2%	±2%
Number of Resistors	3	3	3	3
Power Per Element	300mW	300mW	300mW	300mW
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C
Number of Pins	6	6	6	6
Package / Case	6-SIP	6-SIP	6-SIP	6-SIP
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Product Status	Obsolete	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant
Packaging Format	Bulk	Bulk	Tube	Tube
Resistor-Ratio-Drift	Not specified	Not specified	50ppm/°C	50ppm/°C
Length	0.598" (15.19mm)	0.598" (15.19mm)	0.584" (14.83mm)	0.584" (14.83mm)
Width	0.098" (2.49mm)	0.098" (2.49mm)	0.085" (2.16mm)	0.085" (2.16mm)
Height - Seated (Max)	0.200" (5.08mm)	0.200" (5.08mm)	0.195" (4.95mm)	0.195" (4.95mm)

Engineering Selection Recommendations

For RoHS3 Compliance Requirements: Select 4606X-102-821LF or 4306R-102-821LF. Both parts meet ROHS3 compliance standards. The 4606X-102-821LF maintains identical dimensions to the original part, while 4306R-102-821LF introduces minor dimensional variations within acceptable PCB layout tolerances.

For Active Product Status: All substitute parts (4606X-102-821LF, 4306R-102-821, 4306R-102-821LF) carry active product status, ensuring continued availability and supply chain stability compared to the obsolete 4606X-102-821.

For Bulk Packaging: The 4606X-102-821LF provides direct substitution with identical packaging format and active status.

For Tube Packaging: The 4300R series (4306R-102-821 or 4306R-102-821LF) offers tube packaging with active product status. The 4306R-102-821LF variant provides ROHS3 compliance.

For REACH Compliance: The 4606X-102-821LF and 4306R-102-821LF are REACH Unaffected and REACH Affected respectively. Verify REACH requirements for your specific application before selection.

Frequently Asked Questions (FAQ)

Q: Can 4606X-102-821LF directly replace 4606X-102-821 without PCB modifications?

A: Yes. The 4606X-102-821LF maintains identical electrical specifications, pin count, package type (6-SIP), and physical dimensions (0.598" L x 0.098" W x 0.200" H max). No PCB layout changes are required.

Q: What are the dimensional differences between 4600X and 4300R series parts?

A: The 4300R series (4306R-102-821 and 4306R-102-821LF) have slightly smaller dimensions: 0.584" L x 0.085" W x 0.195" H max, compared to 4600X series at 0.598" L x 0.098" W x 0.200" H max. These differences are within standard PCB layout tolerances for through-hole components.

Q: Are all substitute parts electrically equivalent?

A: Yes. All substitute parts maintain 820 Ohm resistance, ±2% tolerance, 300mW power per element, ±100ppm/°C temperature coefficient, and -55°C to 125°C operating range. The 4300R series specifies 50ppm/°C resistor-ratio-drift, while the original and 4600X series do not specify this parameter.

Q: Which substitute should I select for new designs?

A: For new designs, select an active product status part with appropriate compliance certifications. The 4606X-102-821LF (ROHS3 compliant, active status, bulk packaging) or 4306R-102-821LF (ROHS3 compliant, active status, tube packaging) are recommended based on your packaging and compliance requirements.

Q: What is the difference between bulk and tube packaging?

A: Bulk packaging (4606X-102-821LF) and tube packaging (4306R-102-821LF) differ only in how components are supplied. Both maintain identical electrical and mechanical specifications. Select based on your procurement and assembly process requirements.

Q: Is the obsolete 4606X-102-821 still available?

A: The 4606X-102-821 is classified as obsolete. Active substitutes with improved compliance status are available: 4606X-102-821LF (same series, bulk packaging) or 4306R-102-821LF (cross-series, tube packaging, ROHS3 compliant).

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