Bourns 8101 Common Mode Choke - Equivalent & Substitute Parts

Part Overview

The Bourns 8101 is a 4 mH, 2-line common mode choke designed for through-hole mounting applications requiring 1.7A current handling capability. This component is classified as obsolete, making identification of suitable substitutes essential for ongoing production and maintenance applications. The 8101 series provides electromagnetic interference filtering in two-conductor configurations with a maximum DC resistance of 173 mOhm and operates across the temperature range of -55°C to 105°C.

Substiute Parts

8101

Bourns Inc.In Stock: 7928101 Datasheet

Current PartRFQ

8101-RC

Bourns Inc.In Stock: 26948101-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Bourns 8101-RC qualifies as a direct substitute based on the following critical parameters:

• Inductance value: 4 mH @ 1 kHz (identical)
• Number of lines: 2 (identical)
• Current rating: 1.7A maximum (identical)
• DC resistance: 173 mOhm maximum (identical)
• Operating temperature range: -55°C to 105°C (identical)
• Mounting type: Through hole (identical)
• Physical dimensions: 0.760" L x 0.425" W, height 0.900" (identical)
• Package configuration: Vertical, 4 PC pin (identical)
• Moisture sensitivity level: 1 (Unlimited) (identical)

The primary distinction between the main part and substitute is product status and compliance certification. The 8101 is obsolete, while the 8101-RC is active production. The 8101-RC is ROHS3 compliant, whereas the 8101 is RoHS non-compliant.

Parameter Comparison

Engineering Selection Recommendations

The Bourns 8101-RC is the direct substitute for the obsolete Bourns 8101. Both components share identical electrical and mechanical specifications, including inductance, current rating, DC resistance, operating temperature range, and physical dimensions. The 8101-RC maintains active production status and is ROHS3 compliant, making it suitable for applications requiring current regulatory compliance. The 8101-RC is available in bulk packaging with higher inventory levels (2610 pcs) compared to the original part (723 pcs).

Frequently Asked Questions (FAQ)

Q: Can the Bourns 8101-RC be used as a direct replacement for the Bourns 8101?

A: Yes. The 8101-RC is electrically and mechanically identical to the 8101 across all specified parameters: 4 mH inductance, 1.7A current rating, 173 mOhm DCR, identical physical dimensions, and through-hole mounting configuration.

Q: What is the primary difference between these two parts?

A: The 8101 is obsolete, while the 8101-RC is in active production. The 8101-RC is ROHS3 compliant, whereas the 8101 is RoHS non-compliant. Both maintain REACH Unaffected status.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.760" L x 0.425" W (19.30mm x 10.80mm) with a maximum height of 0.900" (22.86mm) and use the same vertical, 4 PC pin package configuration.

Q: What is the moisture sensitivity level for these components?

A: Both the 8101 and 8101-RC have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.

Q: Is the 8101-RC available in different packaging options?

A: The 8101-RC is supplied in bulk packaging, while the original 8101 was supplied in standard packaging. Both are through-hole components with identical electrical specifications.