CMF-SD10 Bourns, Inc., CMF-SD10 Datasheet
CMF-SD10
Manufacturer Part Number
CMF-SD10
Description
Cmf-sd Series - Telecom Cptc Resettable Fuses
Manufacturer
Bourns, Inc.
Datasheet
1.CMF-SD10.pdf
(3 pages)
35AK = CMF-SD35A-10
50AK = CMF-SD50A-10
50AL = CMF-SD50A-15
Test
Mains Power Contact - ITU-T K.20, K.21 .... None .............. 230 V rms, 10 ohms, 15 Min. .....................................................(Ri-Rf) / Ri < ±10 %
Power Induction - ITU-T K.20, K.21 ............ None .............. 600V rms, 600 ohms, 0.2 seconds, 10 cycles, every 1 Min. .....(Ri-Rf) / Ri < ±10 %
Power Induction - ITU-T K.20, K.21 ............ GDT................ 600 V rms, 600 ohms, 1 second, 10 cycles, every 1 Min. ........(Ri-Rf) / Ri < ±10 %
Power Induction - ITU-T K.20, K.21 ............ GDT................ 600 V rms, 200 ohms, 1 second, 10 cycles, every 1 Min. ........(Ri-Rf) / Ri < ±10 %
Lightning Surge - ITU-T K.20, K.21 ..................................... 10/700 μs, 25 ohms, 1.0 kV, 10 Tests, every 1 Min. .................(Ri-Rf) / Ri < ±10 %
Lightning Surge ................................................................... 10/1000 μs, 40 ohms, 1.0 kV, 30 Tests, every 3 Min. ................(Ri-Rf) / Ri < ±10 %
Ri = R initial
Rf = R fi nal
Represents total content. Layout may vary.
CMF-SD10
CMF-SD25
CMF-SD25-10
CMF-SD35
CMF-SD35-10
CMF-SD35A
CMF-SD35A-10
CMF-SD50
CMF-SD50-10
CMF-SD50A
CMF-SD50A-10
Test Procedures And Requirements For Model CMF-SD Series
25K = CMF-SD25-10
35K = CMF-SD35-10
50K = CMF-SD50-10
Electrical Characteristics
Typical Part Marking
35A = CMF-SD35A
50A = CMF-SD50A
IDENTIFICATION:
10 = CMF-SD10
25 = CMF-SD25
35 = CMF-SD35
50 = CMF-SD50
Model
PART
3 5 6 G
Withstand
Induction
Voltage
VAC
600
600
600
600
600
600
600
600
600
600
600
MANUFACTURER'S
TRADEMARK
BI-WEEKLY
DATE CODE:
WEEK 13-14 = G
YEAR CODE:
6 = 2006
Voltage
Rated
Volts
220
230
220
230
230
230
230
230
230
230
230
Primary
Protection
Ohms
10
25
25
35
35
35
35
50
50
50
50
(RN) @ 25 °C
Resistance
Features
■
■
■
CMF-SD Series - Telecom CPTC Resettable Fuses
Product Designator
Style
Rated Resistance (RN)
Reduced Footprint and Height
Option*
Resistance Tolerance Option
Packaging Options
*Reduced footprint and height option currently
unavailable for Model CMF-SD25.
How to Order
Rated
Two resistance-matched PTCs in a
ceramic housing
Narrow resistance tolerance
RoHS compliant*
SD = Surface Mount Dual Pkg.
10, 25, 35, 50 (25, 35, 50 Ohms)
Blank = Standard (20 %)
-10 = 10 %
- 2 = Tape & Reel
Tolerance
±20 %
±20 %
±10 %
±20 %
±10 %
±20 %
±10 %
±20 %
±10 %
±20 %
±10 %
Test Condition
CMF - SD 35 A -10 - 2
Matching in
Resistance
Housing
Ohms
± 0.5
±1.0
±0.5
±0.5
±0.5
±0.5
±0.5
±0.5
±0.5
±0.5
±0.5
Customers should verify actual device performance in their specifi c applications.
Amps @ 25 °C
Current
0.150
0.130
0.130
0.100
0.100
0.100
0.100
0.090
0.090
0.090
0.090
Hold
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Amps @ 25 °C
Specifi cations are subject to change without notice.
Current
Model CMF-SD is currently available,
0.360
0.260
0.260
0.200
0.200
0.200
0.200
0.190
0.190
0.190
0.190
although not recommended for new
Trip
designs. Model
preferred.
230 VAC
Imax @
Amps
Requirements
2.8
2.5
2.5
2.5
CMF-SDP
1
3
3
3
3
3
3
Imax / 230
Seconds
is
Time to
Trip @
< 0.3
< 0.3
< 0.2
< 0.2
< 0.2
< 0.2
< 0.1
< 0.1
< 0.1
< 0.1
VAC
<4.5
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CMF-SD10 Summary of contents
Page 1
... Lightning Surge ................................................................... 10/1000 μs, 40 ohms, 1.0 kV, 30 Tests, every 3 Min. ................(Ri-Rf < ± initial fi nal Typical Part Marking Represents total content. Layout may vary. MANUFACTURER'S PART TRADEMARK IDENTIFICATION CMF-SD10 25 = CMF-SD25 BI-WEEKLY 35 = CMF-SD35 DATE CODE CMF-SD50 WEEK 13- 35A = CMF-SD35A ...
Page 2
... DIMENSIONS: D (INCHES) 0.15 C COPLANARITY: (.006) (Reduced value available on request.) Packaging Options - Tape and Reel: CMF-SD10, CMF-SD25, CMF-SD35 & CMF-SD50 = 400 pcs. per reel; CMF-SD35A & CMF-SD50A = 500 pcs. per reel Solder Refl ow Recommendations Preheating 300 250 200 150 100 50 0 160–220 Time (seconds) Solder refl ...
Page 3
... (.136) 1.0 5.8 (.039) (.228) Specifi cations are subject to change without notice. Customers should verify actual device performance in their specifi c applications. CMF-SD10 CMF-SD25-2 CMF-SD35-2 CMF-SD50-2 24.0 +0.30/-0.10 (0.945 +0.012/-0.004) 4.00 ± 0.10 (0.157 ± 0.004) 16.0 ± 0.10 (0.630 ± 0.004) 2.00 ± 0.10 (0.079 ± 0.004) 10.2 ± ...