4-pole choke B8425 series

common modeEMItoroidal

Overview
Data and signal line chokes (common-mode filters) — inductors designed to suppress common-mode interference on data and signal transmission lines. Catalog includes datasheets, parameter search, technical documentation and resources such as sample kits, SPICE models, STEP files and material data sheets.

Available product types and designs

• Designs: SMD, SMT, Leaded, SMT Flat Wire
• Types: Double Choke, Quad Choke, Ring Core Choke
• Sample kit series available (examples: B82722S0, B82721S0)

Representative data sheets / product parameters (table)
Product status | Design | Number of lines | Common-mode inductance (mH) | Rated current (A) | Type | Model / Series
Production | SMT | Double Choke | 0.16 - 0.64 | 20.3 - 35 | Double Choke | B82552J*J021
Production | SMD | Double Choke | 0.1 | 0.115 | Double Choke | ACT1210D
Production | Sample Kit | Double Choke | --- | --- | Double Choke | B82722X0002 (sample kit B82722S0)
Production | SMD | Quad Choke | 4.7, 10 | 0.2, 0.3 | Quad Choke | B82794C2
Production | SMD | Double Choke | 0.005 - 4.7 | 0.4 - 1.2 | Double Choke | B82793C0, B82793S0
Production | SMD | Double Choke | 0.0047 | 0.1 | Double Choke | ADF32T-4R7

Product resources

• Data sheets: series and individual datasheets (examples: B82552J*J021, ACT1210, B8272x series)
• Technical information PDFs: general technical information, EMC guidance, quality & environment, cautions and warnings, symbols and terms
• Sample kits with representative parts and parameter ranges (e.g. SMD Common-mode Chokes: B82721S0, B82722S0)
• Model libraries and SPICE models for SMT and leaded inductors
• STEP files for selected series/models
• Material data sheets for inductors

Notable parameter ranges (examples)

• Common-mode inductance (L_N): ~0.0047 mH up to 68 mH (series-dependent)
• Rated current (I_R): ~0.07 A up to ~35 A (series-dependent)
• Package sizes (L x W): 3.2 x 2.5 [EIA 1210], 4.5 x 3.2 [EIA 1812], 9 x 6, 12.7 x 12.7, 13 x 9.5, etc.
• Height (max): examples 2.5 mm, 3 mm, 4.8 mm up to ~22.3 mm
• DC resistance: typical and maximum values given per product series

Usage & applications
Common-mode chokes are used to suppress common-mode interference on high-speed bus interfaces and data communication lines. Typical applications include Ethernet, Single Pair Ethernet (SPE), USB, LVDS, HDMI and other high-speed signal links requiring common-mode suppression.

Features / Technical specifications

• Product family: Data and Signal Line Chokes / Common-mode Filters
• Manufacturer / brand: TDK Electronics
• Number of products listed in this category (search listing): 95
• Designs: SMD, SMT, SMT Flat Wire, Leaded, Sample Kits
• Types: Double Choke, Quad Choke, Ring Core Choke
• Common-mode inductance ranges (examples): 0.0047 mH — 68 mH (series-dependent)
• Rated current ranges (examples): 0.07 A — 35 A (series-dependent)
• Representative series / models referenced: B82552J*J021, ACT1210(D/L/R), B8272x series (B82720, B82721, B82722, B82789, B82790, B82791, B82792, B82793, B82794), ADF32T-4R7, ACT45B
• Documentation available: product datasheets, general technical information, EMC services, quality/environment, cautions and warnings, symbols/terms, STEP files, SPICE models, material data sheets
• Typical rated voltage (where specified): example 48 V AC (50/60 Hz) for some sample-kit chokes