B2005 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The B2005 is a 9 mH common mode choke manufactured by Pulse Electronics, designed for signal line filtering in two-line configurations. This component operates at 100 kHz with a maximum current rating of 100 mA and a DC resistance of 600 mOhm. The B2005 is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

B2005

Pulse ElectronicsIn Stock: 1561B2005 Datasheet

Current PartRFQ

B2005NL

Pulse ElectronicsIn Stock: 1250B2005NL Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The B2005NL qualifies as a parametric equivalent to the B2005 based on the following critical substitution criteria:

• Inductance value: 9 mH @ 100 kHz (identical)
• Current rating: 100 mA (identical)
• DC resistance: 600 mOhm maximum (identical)
• Number of lines: 2 (identical)
• Filter type: Signal Line (identical)
• Mounting type: Through Hole (identical)
• Physical dimensions: 0.500" L x 0.400" W, 0.510" height maximum (identical)
• Package configuration: Horizontal, 4 PC Pin (identical)
• Operating temperature range: -40°C ~ 125°C (identical)
• Moisture sensitivity level: 1 (Unlimited) (identical)

The B2005NL differs from the B2005 in product status (Active vs. Obsolete) and packaging format (Tube vs. standard packaging), with the B2005NL offering RoHS compliance and an updated ECCN classification.

Parameter Comparison

Engineering Selection Recommendations

The B2005NL is the direct active equivalent for the obsolete B2005 common mode choke. Both parts maintain identical electrical and mechanical specifications across all critical parameters: inductance, current rating, DC resistance, physical dimensions, and operating temperature range.

Selection of the B2005NL over the B2005 is supported by the following factors:

• Active product status ensures ongoing availability and manufacturing support
• RoHS compliance certification meets current regulatory requirements
• Identical electrical performance across all specified parameters
• Identical physical form factor and pin configuration for direct board-level substitution
• Tube packaging format is standard for active production components

No additional design modifications or circuit adjustments are required when transitioning from B2005 to B2005NL.

Frequently Asked Questions (FAQ)

Q: Can the B2005NL be used as a direct replacement for the B2005?

A: Yes. The B2005NL is electrically and mechanically identical to the B2005 across all specified parameters. Direct substitution is possible without circuit modification.

Q: What is the primary reason to transition from B2005 to B2005NL?

A: The B2005 is classified as obsolete. The B2005NL is the active equivalent part, ensuring continued availability and manufacturing support.

Q: Are there any compliance differences between the two parts?

A: The B2005NL carries RoHS compliance certification, while the B2005 does not specify this status. Both parts maintain REACH Unaffected status.

Q: Do the packaging formats differ between B2005 and B2005NL?

A: Yes. The B2005 uses standard packaging, while the B2005NL is supplied in Tube format. This difference does not affect electrical or mechanical performance.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.500" L x 0.400" W (12.70 mm x 10.16 mm) with a maximum height of 0.510" (12.95 mm). The package configuration is Horizontal, 4 PC Pin for both parts.

Q: What are the key electrical parameters that define substitution eligibility?

A: Inductance (9 mH @ 100 kHz), current rating (100 mA), and DC resistance (600 mOhm) are the primary electrical parameters. Both parts are identical in these specifications.