Description
• Axial Leaded
• Fast Acting, Solid Matrix Construction
• High Temperature Thermoplastic Body, UL 94 VO
• Tin-lead plated copper Lead Wires, .025" diameter
Agency Information
• UL Recognition Guide & File Numbers:
JDYX2 & E19180
• CSA Certification File & Class Numbers: 053787 C 00 &
1422 30 (0 - 1/8A); 053787 C 00 & 1422 01 (1/4A - 8A)
Ordering
• Specify product code and packaging code
Environmental Data
• Life Test: 2000 hours at 80% rated current, 55°C
• Moisture Resistance: MIL-STD-202, Method 106, 90%
relative humidity at 65°C.
• Operating Temperature: -55°C to 125°C with proper fuse
derating
• Resistance to Soldering Heat: MIL-STD-202, Method
210, Test Condition C (260°C)
• Salt Spray: MIL-STD-202, Method 101, Test Condition B
• Shock: MIL-STD-202, Method 213, Test Condition I,
100G’s for 6 milliseconds
• Solderability: MIL-STD-202, Method 208
• Terminal Strength: MIL-STD-202, Method 211, Test
Condition A, will withstand 7 lb. axial pull test.
• Thermal Shock: MIL-STD-202, Method 107, Test
Condition B, -65°C to 125°C
• Thermal Cycle: EIA-STD-RS-186-C, Test Condition A,
-55°C to 85°C
• Vibration: MIL-STD-202, Method 204, Test Condition C,
(55 to 2000 HZ, 10G’s peak)
• Wave Soldering: Maximum reservoir temperature
260°C, 10 second maximum exposure, .125" from body.
1.13"
28.58mm
.297"
7.54mm
.12"
3.10mm
.025"
0.64mm
1.13"
28.58mm
*All tolerances: ±0.13mm
±0.005"
Dimensions mm⁄(inches)
Subminiature Through Hole
MCR Series, Fast Acting, Solid Matrix
ELECTRICAL CHARACTERISTICS
% of Amp Rating (0-10A) Opening Time
100% 4 hours minimum
250% 5 seconds maximum
SPECIFICATIONS
Rated Interrupting Pre-arching2Typical Total Clearing2Typical Voltage
Product Voltage Rating1I2t (A2sec) I2t (A2sec) Drop Volts at
Code AC DC AC DC AC DC AC DC 100% Rated
MCR-1/16 125V 125V 50A 300A 1.1 x 10-6 1.0 x 10-7 1.8 x 10-6 1.5 x 10-7 2.33
MCR-1/8 125V 125V 50A 300A 4.3 x 10-6 7.1 x 10-7 7.3 x 10-6 8.7 x 10-7 1.52
MCR-1/4 125V 125V 50A 300A 8.0 x 10-5 1.0 x 10-6 1.2 x 10-4 1.3 x 10-6 .76
MCR-3/8 125V 125V 50A 300A 9.7 x 10-5 6.7 x 10-6 1.1 x 10-4 8.3 x 10-6 .73
MCR-1/2 125V 125V 50A 300A 7.4 x 10-4 5.4 x 10-5 6.2 x 10-3 6.8 x 10-5 .65
MCR-3/4 125V 125V 50A 300A 1.3 x 10-3 7.4 x 10-5 7.5 x 10-2 9.2 x 10-5 .55
MCR-1 125V 125V 50A 300A .01 .01 .02 .01 .24
MCR-1 1/2 125V 125V 50A 300A .03 .02 .04 .03 .20
MCR-2 125V 125V 50A 300A .09 .07 .11 .08 .16
MCR-2 1/2 125V 125V 50A 300A .19 .14 .25 .17 .15
MCR-3 125V 125V 50A 300A .35 .28 .45 .32 .15
MCR-3 1/2 125V 125V 50A 300A .56 .37 .83 .43 .14
MCR-4 125V 125V 50A 300A .96 .67 1.37 .77 .13
MCR-5 125V 125V 50A 300A 1.82 1.34 2.53 1.51 .11
MCR-7 60V 90V 50A 300A 1.48 .49 2.02 .58 .10
MCR-10 60V 90V 50A 300A 3.62 1.16 4.41 1.38 .08
1. Interrupting ratings were measured at 100% (1/16 to 5) and 100% (7, 10) power factors on AC, and a time constant less than 1 ms. on DC.
2. I2t was measured at 50 amps 125 VAC, .95PF, (random closing angle) and 300 amps 125 VDC, TC <1ms. for 1/16 through 5 amps and 50 amps 60 VAC, .95PF,
(random closing angle), and 300 amps 90 VDC, TC <1ms. for the 7 and 10 amp fuses.
NOTE: All values shown above are typical.
• Device designed to carry rated current for four hours minimum. An operating current of 80% or less of rated current is recommended, with further derating required
at elevated ambient temperatures.
OBSOLETE - Recommended replacement with MCRW, Data Sheet 4074 - OBSOLETE
0210 BU-SB10142 Page 1 of 2 Data Sheet 2003
AMPERE
RATING
1/16
1/2
3/4
1/8
1/4
3/8
1.0 1.5
2.0 2.5
4.0 5.0
7.0
10.0
3.0
CURRENT IN AMPERES
10
1
.1
.01
.001
TIME IN SECONDS
1
.1
10
100
.01
TIME CURRENT CURVE
Subminiature Through Hole
MCR Series, Fast Acting, Solid Matrix
Visit us on the Web at www.cooperET.com
3601 Quantum Boulevard Boynton Beach, Florida 33426-8638
Tel: +1-561-752-5000 Toll Free: +1-888-414-2645 Fax: +1-561-742-1178
This bulletin is intended to present product design solutions and technical information that will help the end user with design applications. Cooper
Electronic Technologies reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of
any products. Cooper Electronic Technologies 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.
OC-2544 Rev. A 5/02
© Cooper Electronic
Technologies 2002
PACKAGING CODE
Packaging Code Description
Blank 10 units
BK 500 units
TR 2,500 pieces on tape and reel per EIA-296, 52.4mm spacing
OBSOLETE - Recommended replacement with MCRW, Data Sheet 4074 - OBSOLETE
0210 BU-SB10142 Page 2 of 2 Data Sheet 2003
