MF-RX300/72-2 Bourns Inc., MF-RX300/72-2 Datasheet

FUSE PTC RESETTABLE

MF-RX300/72-2

Manufacturer Part Number
MF-RX300/72-2
Description
FUSE PTC RESETTABLE
Manufacturer
Bourns Inc.
Series
MF-RX/72r
Type
PTC Resettable Fusesr
Datasheets

Specifications of MF-RX300/72-2

Voltage - Max
72V
Current - Max
40A
Current - Hold (ih) (max)
3A
Current - Trip (it)
6A
R Min/max
0.040 ~ 0.060 Ohm
Time To Trip
19.8s
Package / Case
Radial
Hold Current
3 Amps
Trip Current
6 Amps
Current Rating (max)
40 Amps
Resistance
0.06 Ohms
Maximum Voltage
72 VoltsDC
Termination Style
Radial
Mounting Style
Through Hole
Dimensions
20.67 mm L x 3.1 mm W x 26.67 mm H
Lead Spacing
10.2 mm
Operating Temperature Range
- 40 C to + 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Operating/Storage Temperature ........................-40 °C to +85 °C
Maximum Device Surface Temperature
Passive Aging......................................................+85 °C, 1000 hours ....................................±5 % typical resistance change
Humidity Aging....................................................+85 °C, 85 % R.H. 1000 hours ..................±5 % typical resistance change
Thermal Shock ....................................................+85 °C to -55 °C, 10 times ........................±10 % typical resistance change
Solvent Resistance ............................................MIL-STD-202, Method 215 ........................No change
Vibration ..............................................................MIL-STD-883C, Method 2007.1, ................No change
Test
Visual/Mech. ......................................................Verify dimensions and materials ................Per MF physical description
Resistance ..........................................................In still air @ 23 °C ........................................Rmin ≤ R ≤ Rmax
Time to Trip ........................................................5 times Ihold, Vmax, 23 °C ........................T ≤ max. time to trip (seconds)
Hold Current ......................................................30 min. at Ihold ..........................................No trip
Trip Cycle Life ....................................................Vmax, Imax, 100 cycles ..............................No arcing or burning
Trip Endurance....................................................Vmax, 48 hours ..........................................No arcing or burning
UL File Number ..................................................E 174545S
in Tripped State ................................................125 °C
Electrical Characteristics
MF-RX110/72
MF-RX135/72
MF-RX160/72
MF-RX185/72
MF-RX250/72
MF-RX300/72
MF-RX375/72
Environmental Characteristics
Test Procedures And Requirements For Model MF-RX/72 Series
Circuit Protection Division
Model
V max.
Volts
72.0
72.0
72.0
72.0
72.0
72.0
72.0
I max.
Amps
40
40
40
40
40
40
40
Asia-Pacific:
Europe:
The Americas: Tel: +1-951 781-5500 • Fax: +1-951 781-5700
www.bourns.com
I hold
Test Conditions
Hold
1.10
1.35
1.60
1.85
2.50
3.00
3.75
Condition A
MF-RX/72 Series -
Features
Amperes
72 V rated
Radial leaded devices
Cured, flame retardant epoxy polymer
insulating material meets
UL 94V-0 requirements
RoHS compliant*
Agency recognition:
at 23
°
C
2.20
2.70
3.20
3.70
5.00
6.00
7.50
I trip
Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
Tel: +41-41 768 5555 • Fax: +41-41 768 5510
Trip
0.15
0.12
0.09
0.08
0.05
0.04
0.03
Min.
Resistance
at 23
Ohms
Initial
Customers should verify actual device performance in their specific applications.
°
C
PTC Resettable Fuses
Max.
0.25
0.19
0.14
0.12
0.08
0.06
0.05
Accept/Reject Criteria
1 Hour (R 1 )
Resistance
at 23
Post-Trip
Ohms
Max.
0.38
0.30
0.22
0.19
0.13
0.10
0.08
Applications
Almost anywhere there is a low voltage
power supply, up to 72 V and a load to be
protected, including:
*
°
RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Security and fire alarm systems
Loudspeakers
Power transformers
C
Specifications are subject to change without notice.
Amperes
at 23
18.75
6.75
9.25
12.5
15.0
5.5
8.0
Max. Time
°
C
To Trip
Seconds
at 23
11.4
12.6
15.6
19.8
24.0
8.2
9.6
°
C
Dissipation
at 23
Tripped
Watts
Power
1.50
1.70
1.90
2.10
2.50
2.80
3.20
Typ.
°
C

Related parts for MF-RX300/72-2

MF-RX300/72-2 Summary of contents

Page 1

... Vibration ..............................................................MIL-STD-883C, Method 2007.1, ................No change Test Procedures And Requirements For Model MF-RX/72 Series Test Visual/Mech. ......................................................Verify dimensions and materials ................Per MF physical description Resistance ..........................................................In still air @ 23 °C ........................................Rmin ≤ R ≤ Rmax Time to Trip ........................................................5 times Ihold, Vmax, 23 °C ........................T ≤ max. time to trip (seconds) Hold Current ...

Page 2

... MF-RX375/72 (0.926) (1.162) Packaging options: BULK: 500 pcs. per bag. TAPE & REEL: MF-RX110/72 - MF-RX160/72 = 1500 pcs. per reel; MF-RX185/72 - MF-RX375/72 = 1000 pcs. per reel. AMMO-PACK: MF-RX110/72 - MF-RX160/72 = 1000 pcs. per reel; MF-RX185/72 - MF-RX375/72 = 500 pcs. per reel Specifications are subject to change without notice. ...

Page 3

... C 70 ° 0.79 0.69 0.59 0.97 0.85 0.73 1.15 1.01 0.86 1.33 1.17 1.00 1.80 1.58 1.35 2.16 1.89 1.62 2.70 2.36 2.03 MF-RX/72 SERIES, REV. B, 11/04 Specifications are subject to change without notice ° C 0.44 0.54 0.64 0.74 1.00 1.20 1.50 ...

Page 4

... MF-R, MF-R/90, MF-R/600, MF-RX, MF-RX/72 & MF-RX/250 Series Tape and Reel Specifications Devices taped using EIA468–B/IEC286-2 standards. See table below and Figures 1 and 2 for details. Dimension Description Carrier tape width Hold down tape width: Hold down tape Top distance between tape edges ...

Page 5

... MF-R, MF-R/90, MF-R/600, MF-RX, MF-RX/72 & MF-RX/250 Series Tape and Reel Specifications Dimension Description Arbor hole diameter Core diameter: MF-R, MF-RX, MF-R/90 Core diameter: MF-RX/250, MF-R/600 Box: MF-R, MF-RX, MF-R/90 Box: MF-RX/250 Box: MF-R/600 Consecutive missing places: MF-R, MF-RX, MF-R/90 Consecutive missing places: MF-RX/250, MF-R/600 ...

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