EATON BUSSMANN TR1/MCRS2A

HALOGEN ® Subminiature Microtron Fuses HF FREE MCRS Series, Time-Delay, Wire-in-Air Description • Axial-leaded time-delay thru-hole fuse • Matte tin-plated copper lead wires • High temperature epoxy plastic body, UL 94V0 Electrical Characteristics % of Amp Rating Opening Time 100% 4 hours minimum 200% 30 seconds maximum Agency Information • UL Recognition Guide & File numbers: JDYX2 & Dimensions - mm (in) E19180. 3.18 ± 0.1__ _ • CSA Certification Record No: LR 701159 & Class No: 7.1 ± 0.5 (0.125 ± 0.004) "A" (0.280 ± 0.020) 1422 30 and 1422 01. Environmental Data 0.81 dia. • Shock resistance: MIL-STD-202, Method 213B, Test (0.032) Packaging Code “A” Length Condition I (Sawtooth) BK1 1.5" TR1 1.13" • Vibration resistance: MIL-STD-202, Method 201 (10-55Hz x 3 axis/ no load) 3.18 ± 0.1 diameter (0.125 ± 0.004) • Moisture resistance: MIL-STD-202F, Method 106 End View 0.81 diameter • Soldering heat resistance: MIL-STD-202, Method 210 (0.032) Top side (260ºC, 20 sec) • Salt spray: MIL-STD-202, Method 101, Test Condition Construction B (48 Hours) • Solderability MIL-STD-202, Method 208H • Operating Temperating: -55ºC to 125ºC Ordering Specify packaging • Insert packaging code prefix before part number. E.g., TR1 (or BK1)/MCRS5A Specifications Voltage Interrupting Resistance Typical Typical Part Number Rating Rating* (amps) (Ω Ω)** Melt Voltage 2 Vac/dc Vac Vdc Typical I t† Drop‡ MCRS250mA 125 50 300 3.20 0.042 2.20 MCRS300mA 125 50 300 2.57 0.056 2.02 MCRS375mA 125 50 300 1.66 0.101 1.69 MCRS500mA 125 50 300 1.07 0.18 1.42 MCRS750mA 125 50 300 0.55 0.44 1.09 MCRS1A 125 50 300 0.36 0.78 0.91 MCRS1.25A 125 50 300 0.23 1.41 0.77 MCRS1.5A 125 50 300 0.18 1.9 0.7 MCRS2A 125 50 300 0.12 3.4 0.59 MCRS2.5A 125 50 300 0.08 6.1 0.5 MCRS3A 125 50 300 0.06 8.1 0.45 MCRS4A 125 50 300 0.04 15 0.38 MCRS5A 125 50 300 0.02 35 0.29 MCRS7A 125 50 300 0.01 63 0.25 * 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) 2 † Typical Melting I 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-SB09025 Page 1 of 2 Data Sheet 4075 Time-Current Curve Current in Amps Packaging Code Packaging Code Prefix Description BK1 1,000 fuses in bulk TR1 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-SB09025 Page 2 of 2 Data Sheet 4075 Time in Seconds