25A2024-0A0

EMI-Split Cores for Round Cables Table SPLIT FERRITE CORES FOR ROUND CABLES Ambient Temperature Range: -55 ° C to +125 ° C Part No. Package Size 25A0392-0A_ 0392 28A0392-0A_ 0392 25A0393-0A_ 0393 28A0393-0A_ 0393 25A0640-0A_ 0640 28A0640-0A_ 0640 25A2024-0A_ 2024 28A2024-0A_ 2024 25A2025-0A_ 2025 28A2025-0A_ 2025 25A2026-0A_ 2026 28A2026-0A_ 2026 25A2029-0A_ 2029 28A2029-0A_ 2029 25B0562-3A2 0562 28B0562-3A2 0562 Impedence (Z) Typical Ohms @ 100MHz 300MHz Cable Diameter (mm) Steward Solid Core Equivalent Height (mm) Width (mm) Length (mm) 180 2.67 - 4.57 25B0375-300 12.80 5.30 29.30 2.67 - 4.57 28B0375-300 12.80 5.30 29.30 2.67 - 4.57 25B0375-300 12.24 5.59 25.02 2.67 - 4.57 28B0375-300 12.24 5.59 25.02 8.38 - 8.89 25B0631-100 20.83 9.02 40.38 8.38 - 8.89 28B0631-100 20.83 9.02 40.38 9.53 - 12.70 25B1020-100 29.00 13.00 32.50 9.53 - 12.70 28B1020-100 29.00 13.00 32.50 5.08 - 6.35 25B0562-200 17.90 7.00 32.50 5.08 - 6.35 28B0562-200 17.90 7.00 32.50 5.08 - 6.35 25B0562-200 20.96 6.76 41.68 5.08 - 6.35 28B0562-200 20.96 6.76 41.68 7.62 - 10.16 25B0735-000 21.50 10.00 32.50 7.62 - 10.16 28B0735-000 21.50 10.00 32.50 4.32 - 5.08 25B0562-300 17.32 7.62 56.54 4.32 - 5.08 28B0562-300 17.32 7.62 56.54 130 180 130 238 200 285 240 331 279 331 279 300 209 330 275 Copyright© 1999 Steward | Last Updated: 09/25/00 E-mail: americas@steward.com http://www.stewtest.com/emi/cables/splitforroundtable.html [2/26/2001 10:15:36 AM] ROUND CABLES Split Ferrite Cores For Round Cables For retrofit and post-assembly operations, Steward offers a selection of “split” components. Similar in performance to Steward’s one piece core designs, these split ferrite cores provide excellent common and differential mode EMI suppression on round cable assemblies. Lightweight, inexpensive plastic snap-on cases provide secure closure of the split cores onto the cable. Features: ·Internal core diameters from 5.0mm (0.197”) to 13.0mm (0.51”) radius ·Precision formed smooth surfaces prevent damage to wire insulation ·Available in Steward broad band (28) or high frequency (25) materials ·Custom designs available ·Plastic cases are UL 94V-0 flame retardant rated ·Saves valuable PC board space ·The in-circuit impedance may be substantially increased by passing 2 turns of the wire conductor through the ferrite core assembly ·Easy installation Applications: ·Internal and external power cables ·Internal cables between PC boards and data connectors ·Products with limited PC board space available for surface mount EMI components ·Monitor cables ·Power supply cables ·Printer cables Test Specifications: ·HP4396A Network/Spectrum Analyzer ·HP43961A Impedance Test Kit ·HP16192A Test Fixture ·HP16200A DC Bias Adapter ·Philips PM2811 DC Power Supply ·Ambient Temperature 23.5oC ·Bandwidth 3 kHz ·Sweep Time 423 ms PART NUMBERING SYSTEM 25 A MATERIAL TYPE 0392 PRODUCT CODE PART NUMBER - 0 PART SIZE CODE 2 (Black) 0 (White) A DIMENSION CODE ASSEMBLY CASE COLOR TYPE CODE CODE Broad band material is 28 High frequency material is 25 Fig # A mm (inches) B mm (inches) C mm (inches) D mm (inches) Cable Diameter Reference mm (inches) Steward Solid Core Equivalent # _ _A0392-0A _ 1 12.80 (0.504) 5.30 (0.209) 29.30 (1.154) 12.40 (0.488) 2.67 - 4.57 (0.105 - 0.180) _ _A0393-0A _ 2 12.24 (0.482) 5.59 (0.220) 25.02 (0.985) 10.06 (0.396) _ _A0640-0A _ 1 20.83 (0.82) 9.02 (0.355) 40.38 (1.59) _ _A2024-0A _ 3 29.00 (1.140) 13.00 (0.510) _ _A2025-0A _ 3 17.90 (0.700) _ _A2026-0A _ 1 _ _A2029-0A _ _ _B0562-3A2 ( solid core ) 25 Material @ 300 MHz 28 Material @ 100 MHz _ _B0375-300 180 130 2.67 - 4.57 (0.105 - 0.180) _ _B0375-300 180 130 19.18 (0.755) 8.38 - 8.89 (0.330 - 0.350) _ _B0631-100 238 200 32.50 (1.280) 29.60 (1.170) 9.53 - 12.70 (0.375 - 0.500) _ _B1020-100 285 240 7.00 (0.280) 32.50 (1.280) 18.40 (0.720) 5.08 - 6.35 (0.200 - 0.250) _ _B0562-200 331 279 20.96 (0.825) 6.76 (0.266) 41.680 (1.641) 20.32 (0.800) 5.08 - 6.35 (0.200 - 0.250) _ _B0562-200 331 279 3 21.50 (0.850) 10.00 (0.390) 32.50 (1.280) 22.30 (0.880) 7.62 - 10.16 (0.300 - 0.400) _ _B0735-000 300 209 4 17.32 (0.682) 7.62 (0.300) 56.54 (2.226) 5.00 (0.200) 4.32 - 5.08 (0.170 - 0.200) _ _B0562-300 330 275 - 0A0 = White Plastic Snap On Case - 0A2 = Black Plastic Snap On Case All impedance values are NET; they are based on the ferrite cores only. Figure 2 Figure 1 Figure 4 Figure 3 C C C D D C B A A D A B A B 86 Typical Impedance (Ohms) D B Solid Core with Snap-on Plastic Case STEWARD - U.S.A. • Telephone: 423/867-4100 • Fax 423/867-4102 • Internet: http://www.steward.com SCOTLAND • Telephone: 44-(0)1-506-414200 • Fax 44-(0)1-506-410694 SINGAPORE • Telephone: (65)337-9667 • Fax (65)337-9686