cmfsdp

NT
Features
S
CO
M
PL
IA
■
*R
oH
■
■
Applications
Two resistance-matched PTCs in a
plastic housing
Narrow resistance tolerance
RoHS compliant*
Used as a secondary overcurrent protection
device in:
■ Customer Premise Equipment (CPE)
■ Central Office (CO)
■ Access equipment
CMF-SDP Series - Telecom CPTC Resettable Fuses
Electrical Characteristics
Model
Induction
Voltage
Withstand
Rated
Voltage
VAC
Volts
Ohms
Tolerance
Ohms
600
600
600
600
600
600
600
600
600
600
230
230
230
230
230
230
230
230
230
230
7
10
10
25
25
35
35
50
50
75
±20 %
±20 %
±20 %
±20 %
±20 %
+15/-20 %
+15/-20 %
±15 %
±15 %
±20 %
±0.5
±0.5
±0.5
±0.5
±0.5
±0.5
±0.5
±0.5
±0.5
±1
CMF-SDP07
CMF-SDP10
CMF-SDP10A
CMF-SDP25
CMF-SDP25A
CMF-SDP35
CMF-SDP35A
CMF-SDP50
CMF-SDP50A
CMF-SDP75
Rated
Resistance
(RN)
Resistance
Matching
In Housing
Hold
Current
Trip
Current
Amps @ 25 °C Amps @ 25 °C
0.150
0.180
0.150
0.130
0.130
0.110
0.110
0.090
0.090
0.070
0.350
0.360
0.360
0.260
0.260
0.230
0.230
0.190
0.190
0.150
Typical
Time to Trip
Imax @
@ Imax/
230 VAC
230 VAC
Amps
Seconds
3.0
1.0
1.0
2.8
2.8
4.6
4.6
2.5
2.5
2.5
0.45
3.8
3.8
0.2
0.3
0.06
0.04
0.13
0.1
0.12
Operating Temperature Range: -40°C to +125 °C
Test Procedures And Requirements For Model CMF-SDP Series
Primary
Test
Protection
Test Condition
Requirements
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......................................................................10/100 µs, 25 ohms, 1.5 kV, 30 Tests, every 3 Min. ..................(Ri-Rf) / Ri < ±10 %
Ri = R initial
Rf = R final
Typical Part Marking
How to Order
Represents total content. Layout may vary.
PART
IDENTIFICATION:
07P = CMF-SDP07
10P = CMF-SDP10
10PA = CMF-SDP10A
25P = CMF-SDP25
25PA = CMF-SDP25A
35P = CMF-SDP35
35PA = CMF-SDP35A
50P = CMF-SDP50
50PA = CMF-SDP50A
75P = CMF-SDP75
MANUFACTURER'S
TRADEMARK
35P8G
BI-WEEKLY
DATE CODE:
WEEK 13-14 = G
YEAR CODE:
8 = 2008
CMF - SD P 35 A -XX - 2
Product Designator
Style
SD = Surface Mount
Dual Pkg.
Housing
P = Plastic
Rated Resistance (RN)
7-75 (7-75 Ohms)
Footprint and Height Option
Blank = Standard Product
A = Reduced Footprint and Height
Resistance Tolerance Option
Blank = Standard
-XX = XX %; e.g. -10 = ±10 %
Packaging Options
- 2 = Tape & Reel
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Asia-Pacific:
Tel: +886-2 2562-4117
Fax: +886-2 2562-4116
Europe:
Tel: +41-41 768 5555
Fax: +41-41 768 5510
The Americas:
Tel: +1-951 781-5500
Fax: +1-951 781-5700
www.bourns.com
CMF-SDP Series - Telecom CPTC Resettable Fuses
Solder Reflow Recommendations
Preheating
300
Soldering
Cooling
Solder reflow
• Recommended reflow methods: IR, vapor phase oven, hot air oven.
• Devices are not designed to be wave soldered to the bottom side of the
board.
• Gluing the devices is not recommended.
• Recommended maximum paste thickness is 0.25 mm (.010 inch).
• Devices can be cleaned using standard industry methods and solvents.
Note:
• If reflow temperatures exceed the recommended profile, devices may not
meet the performance specifications.
Rework
• A device should not be reworked.
Temperature (°C)
250
200
150
100
50
0
160–220
120
10–20
Time (seconds)
Product Dimensions
CMF-SDP10A, 25A, 35A & 50A
CMF-SDP07, 10, 25, 35, 50 & 75
8.75
(.344) MAX.
11.5
(.453)
MAX.
10.2
(402)
MAX.
2.6
(.102)
9.0
MAX.
(.354)
2.4
(.094)
5.0
(.197)
11.0
MAX.
(.433)
0.5
(.020)
2 PLCS.
3.9
(.154)
Recommended Pad Layout
7.2
MAX.
(.283)
Recommended Pad Layout
9.0
(.354)
7.2
(.283)
MAX.
MAX.
8.75
(.344)
11.0
(.433)
6.3
(.248)
3.9
(.154)
7.6
(.299)
5.0
(.197)
10.0
(.394)
3.2
(.126)
8.2
(.323)
2.6
2.0 (.102)
(.079)
DIMENSIONS =
Packaging options: TAPE & REEL: 350 pcs. per reel
3.2
(.126)
2.4
(.094)
2.0
(.079)
MM
(INCHES)
Packaging options: TAPE & REEL: 400 pcs. per reel
CMF-SDP SERIES, REV. C, 11/08
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
CMF-SDP Series Tape and Reel Specifications
CMF-SDP10-2, CMF-SDP25-2,
CMF-SDP-35-2, CMF-SDP50-2,
CMF-SDP75-2
Tape Dimensions per EIA 481-2
CMF-SDP10A-2, CMF-SDP25A-2,
CMF-SDP35A-2, CMF-SDP50A-2
W
24.0 ±0.5
(0.945 ±0.020 )
24.0 ±0.5
(0.945 ±0.020 )
P0
4.0
(0.157)
4.0
(0.157)
P
16.0
(0.630)
16.0
(0.630)
P2
2.0
(0.079)
2.0
(0.079)
A0
9.1 ± 0.2
(0.358 ± 0.008)
7.5 ± 0.2
(0.295 ± 0.008)
B0
11.20 ± 0.2
(0.441 ± 0.008)
9.0 ± 0.2
(0.354 ± 0.008)
D0
1.5
(0.059)
1.5
(0.059)
F
11.5
(0.453)
11.5
(0.453)
E1
1.75
(0.069)
1.75
(0.069)
t1
0.5 ± 0.15
(0.020 ± 0.006)
0.5 ± 0.15
(0.020 ± 0.006)
K0
11.7 ± 0.2
(0.433 ± 0.008)
10.0 ± 0.2
(0.394 ± 0.008)
D
P2
E
P0
T
-0.4
(-.016)
F
W
B0
P
A0
K0
DIMENSIONS =
MM
(INCHES)
330 -2/+0
(12.99 -.079/+0)
DIA.
24.4
(.961)
MIN.
30.4
(1.197)
MAX.
13.2 +0.2/-0
(.520 +.008/-0
100 ± 1.5
(3.94 ± .059)
DIA.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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