参数资料
| 型号： | CMF-RQ50-10-0 |
| 厂商： | Bourns Inc. |
| 文件页数： | 1/2页 |
| 文件大小： | 0K |
| 描述： | CPTC FUSE RESETTABLE |
| 标准包装： | 96 |
| 系列： | CMF-RQ |
| 电流 - 维持(Ih)： | 90mA |
| 电流 - 跳闸(It)： | 190mA |
| 电流 - 最大： | 3A |
| 电压 - 最大： | 230V |
| 跳闸时间： | 0.1s |
| 封装/外壳： | 8-DIP |
| 包装： | 散装 |
Features
Applications
■
■
■
■
Four resistance-matched PTCs in a
ceramic housing
Aids compliance with:
- ITU-T K.20/21/45
- Telcordia GR-1089-CORE
- UL 60950, 3rd Ed.
Narrow resistance tolerance
RoHS compliant*
Used as a secondary overcurrent protection
device in:
■ Customer Premise Equipment (CPE)
■ Central Office (CO)
■ Access equipment
CMF-RQ Series - Telecom CPTC Resettable Fuses
Electrical Characteristics
Time
Induction
Rated
Resistance
to Trip
Voltage
Rated
Resistance
Matching
Hold
Hold
Trip
Imax @
@ Imax/
Model
Withstand
Voltage
(RN)
In Housing
Current
Current
Current
230 VAC
230 VAC
Amps
Amps
Amps
VAC
Volts
Ohms
Tolerance
Ohms
@ 25 °C
@ 40 °C
@ 25 °C
Amps
Seconds
CMF-RQ50
CMF-RQ50-10
600
600
230
230
50
50
±20 %
±10 %
± 0.5
± 0.5
0.09
0.09
0.06
0.06
0.19
0.19
3.0
3.0
< 0.1
< 0.1
Test Procedures And Requirements For Model CMF-RQ 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 μ s, 25 ohms, 1.0 kV, 10 Tests, every 1 Min. ..................(Ri-Rf) / Ri < ±10 %
Lightning Surge......................................................................10/1000 μ s, 40 ohms, 1.0 kV, 30 Tests, every 3 Min. ................(Ri-Rf) / Ri < ±10 %
Overvoltage Withstand ..........................................................300 V, 3 A, 4 Hours, 1 Time ........................................................(Ri-Rf) / Ri < ±10 %
Failure Mode ..........................................................................300 V, RL=0, 60 Min. ..................................................................**
Ri = R initial
Rf = R final
** Circuit disconnected or high resistance is acceptable.
Product Dimensions
SIDE
9.0 ± 1.0
(.354 ± .039)
FRONT
20.0 ± 1.0
(.787 ± .039)
10.0 ± 1.0
1 3 5 7 = FRONT PINS
1.5
(.059)
(.394 ± .039)
2 4 6 8 = BACK PINS
1
2
3
4
5
6
7
8
1.2
DIMENSIONS =
MM
(INCHES)
0.6
(.236)
(.047)
2.0
(.079)
BOTTOM
PINS 1 & 2 = 1ST CPTC
Packaging options:
BULK: 5 6 pcs. per plastic box
5.0 ± 0.2
(.197 ± .008)
2.5 ± 0.1
(.098 ± .039)
5.0 ± 0.2
(.197 ± .008)
9.0 ± 1.0
(.354 ± .039)
PINS 3 & 4 = 2ND CPTC
PINS 5 & 6 = 3RD CPTC
PINS 7 & 8 = 4TH CPTC
*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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CMF-SD | 制造商:BOURNS 制造商全称:Bourns Electronic Solutions 功能描述:Telecom CPTC Resettable Fuses |
| CMF-SD10 | 制造商:BOURNS 制造商全称:Bourns Electronic Solutions 功能描述:Telecom CPTC Resettable Fuses |
| CMF-SD10A-10-2 | 制造商:BOURNS 制造商全称:Bourns Electronic Solutions 功能描述:Telecom CPTC Resettable Fuses |
| CMF-SD25 | 制造商:BOURNS 制造商全称:Bourns Electronic Solutions 功能描述:Telecom CPTC Resettable Fuses |
| CMF-SD25-10 | 制造商:BOURNS 制造商全称:Bourns Electronic Solutions 功能描述:Telecom CPTC Resettable Fuses |
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