EMI Ferrite Chip Beads
Steward’s surface mount ferrite chips provide compact, cost effective EMI filtering
for densely packed PCB designs. The small footprint enables placement very close
to troublesome high frequency devices. Our proprietary SMT construction yields
rugged components with impedance versus frequency characteristics superior to
those of similar products.
Features:
•Small footprint •Excellent retention under bias •Rugged, monolithic construction •Superior impedance vs. frequency
characteristics •Economical •Broad range of sizes ( from 0402 up to 2220 and 3312 ) •Broad range of impedance values and current
ratings •Also offered in lead free
Applications:
•Filtering of power input pins and devices using high speed clocks •Filtering of low frequency input/output signals of shielded
enclosures •High frequency filtering of medium speed clocks and video signals •Prevention of oscillations in high frequency
amplifiers •Data bus filtration •Discrete component filtration in power supplies •Telecom Products
Test Specifications:
•Maximum current ratings are determined by testing to a maximum temperature rise of 40oC with continuous operating current
Tested with: •E4991A (100kHz - 3.0 GHz) or HP8753 (to 6 GHz) Network/Spectrum Analyzer •HP43961A Impedance Test Kit
•HP16193A Test Fixture or Inter-Continental Microwave custom fixtures •HP16200A DC Bias Adapter •Philips PM2811 DC Power
Supply •Ambient Temperature 23.5oC + 2o •Bandwidth 3 kHz •Sweep Time 423 ms •Impedance is rated at + 25% @100MHz
STEWARD PART NUMBERING SYSTEM
DM
PRODUCT
SERIES CODE
1612
X
RATED CURRENT
CODE
PART SIZE
CODE
560
IMPEDANCE
VALUE CODE
00
PACKAGING
CODE
ADDITIONAL
DESCRIPTION
Chip Bead
LI Low Current Chips (< 1 Amp and < 400 Ohms)
DM Ultra High Current Chips (10 Amps +)
HZ High Impedance Chips (<1 Amp and > 400 Ohms)
HI High Current Chips ( > 3 Amps)
DA Chip Array (< 1 Amp)
MI Mid Current Chips (1-2.5 Amps)
HR High Retention Under Bias
Ambient Operating Temperature Range: -55°C to +125°C
PART
NUMBER
METRIC
( EIA )
PKG.
SIZE
IMPEDANCE ( Z )
TYPICL OHMS @
100MHz 500MHz 1GHz
DCR
MAX
OHMS
RATED I
MAX
(continuous)
mA
Ultra High Current Chips
METRIC
( EIA )
PKG.
SIZE
PART
NUMBER
Chip Array
IMPEDANCE ( Z )
TYPICL OHMS @
100MHz 500MHz 1GHz
DCR
MAX
OHMS
RATED I
MAX
(continuous)
mA
High Current Chips (Continued)
DM1612X560R-00
4131
(1612)
56
90
100
0.004
10,000
HI1806T600R-00
4516
(1806)
60
102
107
0.010
6,000
DM3312X101R-00
8531
(3312)
100
175
225
0.004
10,000
HI1812T800R-00
4532
(1812)
80
121
129
0.010
6,000
100
148
156
0.010
8,000
100
148
152
0.006
6,000
High Current Chips
HI1812V101R-00
HI0603P600R-00
1608
(0603)
60
90
95
0.040
3,000
HI2220T101R-00
HI0805Q310R-00
2012
(0805)
31
42
46
0.025
4,500
HI2220R151R-00
150
215
196
0.015
5,000
HI0805R800R-01
80
109
89
0.016
5,000
HI2220R181R-00
180
260
230
0.020
5,000
HI0805O121R-00
120
128
72
0.020
3,500
HI2220P171R-00
170
318
349
0.030
4,000
50
73
80
0.010
6,000
HI2220P251R-00
250
172
91
0.015
4,000
HI1206N800R-00
80
120
129
0.035
3,000
HI2220P271R-00
270
360
250
0.035
4,000
HI1206N101R-00
100
144
150
0.035
3,000
HI2220R301R-00
300
190
100
0.020
5,000
HI1206P121R-00
120
168
124
0.030
4,000
HI2220Q401R-00
400
159
99
0.025
4,500
HI1206T161R-00
160
220
160
0.018
6,000
HI2220P551R-00
550
670
343
0.035
4,000
HI1206T500R-00
3216
(1206)
Steward
www.steward.com
5650
(2220)
North America - U.S.A. • Phone: +1 423 308 1690 • Fax +1 423 308 1622 • e-mail: americas@steward.com
North America - Mexico • Phone: +52 662 260-4832 • Fax: +52 662 216 1202 • e-mail: mexico@steward.com
Europe - Scotland, UK • Phone: +44 (0)1506 414200 • Fax +44 (0)1506 410694 • e-mail: europe@steward.com
Asia / Pacific - Singapore • Phone: +65 6272 2646 • Fax : +65 6272 6165 • e-mail: asia@steward.com
China • Phone: +86-757-2563 8860 • Fax : +86-757-2563 8862 • e-mail: china@steward.com
Brochure 9
REV 7 06/2004
