RN222-2-02 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The RN222-2-02 is a 6.8 mH, 2-line common mode choke designed for power line filtering applications in through-hole mounting configurations. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and procurement continuity. The RN222-2-02 operates at rated specifications of 2A typical current and 160 mOhm typical DC resistance, with approval from UR and VDE agencies.

Substiute Parts

RN222-2-02

Schaffner EMC Inc.In Stock: 882RN222-2-02 Datasheet

Current PartRFQ

RN222-2-02-6M8

Schaffner EMC Inc.In Stock: 1393RN222-2-02-6M8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN222-2-02 is determined by the following critical parameters:

• Inductance Value: 6.8 mH nominal inductance
• Number of Lines: 2-line common mode configuration
• Current Rating: 2A maximum current capacity
• Mounting Type: Through-hole vertical orientation with 4-pin configuration
• Physical Dimensions: 31.00mm L x 18.00mm W x 29.60mm H maximum
• DC Resistance: Acceptable range near 160 mOhm typical
• Voltage Rating: Minimum 250V AC rating
• Compliance: RoHS and regulatory approvals (UR, VDE)

The RN222-2-02-6M8 qualifies as a direct substitute based on matching inductance value, line configuration, current rating, mounting type, and physical dimensions. Variations in inductance measurement frequency (1 kHz vs. 10 kHz), DC resistance tolerance (156 mOhm vs. 160 mOhm), and voltage rating (300V vs. 250V) remain within acceptable engineering parameters for power line filtering applications.

Parameter Comparison

Engineering Selection Recommendations

The RN222-2-02-6M8 is the direct substitute for the obsolete RN222-2-02. Selection is based on the following engineering criteria:

Product Status: The RN222-2-02-6M8 maintains active product status with Schaffner EMC Inc., ensuring ongoing availability and manufacturing support compared to the obsolete RN222-2-02.

Regulatory Compliance: The RN222-2-02-6M8 carries expanded approval certifications (ENEC, UR, VDE) versus the original part (UR, VDE), providing broader regulatory acceptance. Both parts maintain RoHS compliance, with the substitute meeting ROHS3 requirements.

Electrical Performance: The substitute part delivers equivalent inductance (6.8 mH), current rating (2A), and improved DC resistance (156 mOhm vs. 160 mOhm). The higher AC voltage rating (300V vs. 250V) provides additional design margin without compromising performance.

Physical Compatibility: Identical mounting type, dimensions, and pin configuration ensure direct board-level substitution without layout modifications.

Temperature Operating Range: The original part supports -40°C to 125°C operation, while the substitute operates -40°C to 100°C. Applications requiring operation above 100°C must evaluate thermal requirements against the substitute's specifications.

Frequently Asked Questions (FAQ)

Q: Can RN222-2-02-6M8 be used as a direct replacement for RN222-2-02?

A: Yes. Both parts share identical inductance value (6.8 mH), 2-line configuration, 2A current rating, through-hole mounting, and physical dimensions (31.00mm x 18.00mm x 29.60mm). The substitute is electrically and mechanically compatible for direct board substitution.

Q: What is the difference in inductance measurement frequency between the two parts?

A: The RN222-2-02 specifies inductance at 1 kHz, while RN222-2-02-6M8 specifies at 10 kHz. Both maintain 6.8 mH nominal inductance at their respective measurement frequencies. Frequency-dependent inductance variation is inherent to common mode choke design and does not affect substitution validity for power line filtering applications.

Q: Are there packaging differences between these parts?

A: The RN222-2-02 uses standard packaging, while RN222-2-02-6M8 is supplied in tube packaging. Both maintain identical component specifications and through-hole pin configuration. Packaging format does not affect electrical or mechanical performance.

Q: Does the higher AC voltage rating of RN222-2-02-6M8 (300V vs. 250V) affect circuit design?

A: No. The higher voltage rating of the substitute part provides additional design margin and does not require circuit modifications. Applications designed for 250V operation remain fully compatible with the 300V-rated substitute.

Q: What is the impact of the different operating temperature ranges?

A: The RN222-2-02 operates -40°C to 125°C, while RN222-2-02-6M8 operates -40°C to 100°C. For applications requiring sustained operation above 100°C, the original specification must be verified. For standard industrial and commercial temperature ranges (-40°C to 100°C), the substitute is fully suitable.

Q: Are both parts RoHS compliant?

A: Yes. The RN222-2-02 is RoHS Compliant, and RN222-2-02-6M8 is ROHS3 Compliant. Both meet RoHS requirements for hazardous substance restrictions.

Q: What regulatory approvals does each part carry?

A: RN222-2-02 carries UR and VDE approvals. RN222-2-02-6M8 carries ENEC, UR, and VDE approvals. The substitute provides broader regulatory acceptance with additional ENEC certification.