78FR033M Bourns Inc., 78FR033M Datasheet - Page 163

• Manufacturer Part Number: 78FR033M
• Description: CHOKE, 33NH, 500MA, 20%, 400MHZ
• Manufacturer: Bourns Inc.

Specifications of 78FR033M

• Inductance: 33nH
• Inductance Tolerance: ± 20%
• Dc Resistance Max: 0.02ohm
• Dc Current Rating: 500mA
• Self Resonant Frequency: 400MHz
• Q Factor: 50
• Inductor Case Style: Axial Leaded
• No. Of Pins: 2
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Special Features
• High Q, high self-resonant
• High voltage application on phenolic
• Universal wound
• Low cost
• Varnish coated
• Operating temperature:
Notes
* Current to cause 35 °C max. temperature rise
frequency
and ferrite components
phenolic -55 to +125 °C;
iron, ferrite -55 to +105 °C
Dia.
0.025 for 0.1-22,000uh
0.032 for 25,000-500,000uh
Dimensions: Inches
1.25
B
A
Tel. [phone] • Fax [phone]
Varnished Chokes
For RoHS compliant version, add “-RC” to part number.
Part
Number
70F107AP
70F157AP
70F227AP
70F337AP
70F477AP
70F687AP
70F757AP
70F827AP
70F106AI
70F126AI
70F156AI
70F186AI
70F226AI
70F276AI
70F336AI
70F396AI
70F476AI
70F566AI
70F686AI
70F756AI
70F826AI
70F916AI
70F105AI
70F125AI
70F155AI
70F185AI
70F225AI
70F255AI
70F275AI
70F335AI
70F395AI
70F475AI
70F565AI
70F685AI
70F755AI
70F825AI
70F915AI
70F104AI
70F124AI
70F154AI
70F184AI
70F204AI
70F224AI
70F254AI
70F274AI
70F304AI
70F334AI
70F354AI
www.bourns.com
±20 %
L (μH)
±10 %
±5 %
0.10
0.15
0.22
0.33
0.47
0.68
0.75
0.82
100
120
150
180
200
220
250
270
300
330
350
1.0
1.2
1.5
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
7.5
8.2
9.1
10
12
15
18
22
25
27
33
39
47
56
68
75
82
91
Min.
49
52
48
47
46
48
48
48
41
45
42
31
43
34
40
35
43
41
40
32
37
41
36
52
52
52
51
48
49
50
48
44
45
42
38
41
41
25
40
47
48
47
46
49
46
46
41
46
Q
(MHz)
Freq.
Test
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
25
25
25
25
25
25
25
25
25
Continued next page.
(MHz)
70F Series
Min.
SRF
600
490
400
330
280
240
224
216
118
118
102
9.3
9.1
8.6
8.1
7.2
6.7
6.7
3.6
3.2
3.0
2.8
2.7
2.5
2.5
2.5
2.2
2.0
2.0
89
87
74
66
61
53
49
49
44
41
21
19
19
16
15
13
13
12
10
0.125
0.264
0.048
0.072
0.096
0.096
0.156
0.168
0.264
0.457
0.492
0.624
0.624
0.744
Max.
DCR
0.13
0.25
0.38
0.70
0.20
0.29
0.24
1.44
1.56
1.68
1.92
2.28
2.28
2.64
2.64
2.76
3.36
3.36
3.84
4.56
4.92
7.68
8.16
8.16
8.16
10.3
11.5
12.1
13.2
13.2
13.9
14.4
4.2
4.8
Ω
I, DC*
(mA)
3922
2828
2294
1690
1264
1000
2041
1666
1443
1443
1132
1091
870
830
912
870
661
637
566
566
518
288
277
267
250
229
229
213
213
208
188
188
176
169
162
158
156
139
135
135
135
120
114
111
106
106
103
102
Dim.
Max
0.15
0.14
0.14
0.12
0.12
0.12
0.12
0.12
0.16
0.16
0.16
0.16
0.16
0.16
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.16
0.16
0.16
0.16
0.16
0.16
0.17
0.17
0.17
0.17
0.17
0.18
0.18
0.18
0.18
0.18
0.16
0.16
0.16
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.18
A
±0.03
Dim.
0.31
0.31
0.31
0.31
0.31
0.31
0.31
0.31
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
B
Material
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Core
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
20.3