Subminiature Microtron Fuses
®
MCRW Series, Fast-Acting, Wire-in-Air
Description
• Axial-leaded fast-acting thru-hole fuse
• Matte tin-plated copper lead wires
• High temperature epoxy plastic body, UL 94V0
• Low resistance values
Electrical Characteristics
% of Amp Rating
Opening Time
100%
4 hours minimum
200%
5 seconds maximum
HF
FREE
HALOGEN
Agency Information
• UL Recognition Guide & File numbers: JDYX2 &
E19180.
• CSA Certification Record No: LR 701159 & Class No:
1422 30 and 1422 01.
Environmental Data
• Shock resistance: MIL-STD-202, Method 213B, Test
Condition I (Sawtooth)
• Vibration resistance: MIL-STD-202, Method 201
(10-55Hz x 3 axis/ no load)
• Moisture resistance: MIL-STD-202F, Method 106
• Soldering heat resistance: MIL-STD-202, Method 210
Top side (260ºC, 20 sec)
• Salt spray: MIL-STD-202, Method 101, Test Condition
B (48 Hours)
• Solderability MIL-STD-202, Method 208H
• Operating Temperating: -55ºC to 125ºC
Ordering
• Specify packaging and product code
(i.e., TR1/MCRW100mA)
Dimensions - mm (in)
“B”
7.1
±
0.5
(0.280
±
0.020)
3.18
±
0.1___
(0.125
±
0.004)
“A”
Amps
100mA - 7A
10A - 15A
“A” Diameter
0.025"
0.032"
Packaging Code
BK1
TR1
“B” Length
1.5"
1.13"
End View
3.18
±
0.1
diameter
(0.125
±
0.004)
“A” diameter
Construction
Specifications
Part Number
MCRW100mA
MCRW125mA
MCRW150mA
MCRW200mA
MCRW250mA
MCRW300mA
MCRW375mA
MCRW500mA
MCRW750mA
MCRW1A
MCRW1.5A
MCRW2A
MCRW2.5A
MCRW3A
MCRW4A
MCRW5A
MCRW7A
MCRW10A
MCRW12A
MCRW15A
*
**
†
‡
Voltage
Rating
Vac/dc
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
Interrupting
Rating* (amps)
Vac
Vdc
50
300
50
300
50
300
50
300
50
300
50
300
50
300
50
300
50
300
50
300
50
300
50
300
50
300
50
300
50
300
50
300
50
300
50
300
50
300
50
300
Resistance
Ω
(Ω)**
Typical
15.5
2.2
1.6
1.2
0.85
0.62
0.49
0.33
0.19
0.13
0.07
0.054
0.041
0.031
0.023
0.018
0.012
0.007
0.006
0.004
Typical
Melt
I
2
t†
0.0006
0.0009
0.0015
0.002
0.004
0.008
0.012
0.023
0.056
0.10
0.25
0.27
0.50
0.9
1.6
3
7
21
35
63
Typical
Voltage
Drop‡
3.00
0.61
0.54
0.48
0.43
0.39
0.35
0.31
0.25
0.22
0.18
0.24
0.22
0.20
0.19
0.17
0.15
0.098
0.093
0.088
AC Interrupting Rating (Measured at designated voltage, 100%) DC Interrupting Rating (Measured at designated voltage, rise time of less than 50 microseconds, battery source)
DC Cold Resistance (Measured at 10% of rated current)
Typical Melting I
2
t (Measured with a battery bank at rated DC voltage, 10x-rated current, rise time of calibrated circuit less than 50 microseconds)
Typical Voltage Drop (Measured at rated current after temperature stabilizes)
0709
BU-SB09024
Page 1 of 2
Data Sheet 4074
Time-Current Curve
Time in Seconds
Current in Amps
Packaging Code
Packaging Code Prefix
BK1
TR1
Description
1,000 fuses in bulk
2,500 fuses on tape-and-reel per EIA-296-F @ 5 mm pitch and 52.4mm inside tape spacing
The only controlled copy of this Data Sheet is the electronic read-only version located on the Cooper Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is
intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Cooper Bussmann reserves the right, without notice, to change
design or construction of any products and to discontinue or limit distribution of any products. Cooper Bussmann also reserves the right to change or update, without notice, any technical information contained
in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.
Life Support Policy: Cooper Bussmann does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company. Life support
systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in
significant injury to the user.
© 2009 Cooper Bussmann
St. Louis, MO 63178
www.cooperbussmann.com
0709
BU-SB09024
Page 2 of 2
Data Sheet 4074
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