MF-RX300/72-0 Bourns Inc., MF-RX300/72-0 Datasheet

FUSE PTC RESET 3.00A HOLD

MF-RX300/72-0

Manufacturer Part Number
MF-RX300/72-0
Description
FUSE PTC RESET 3.00A HOLD
Manufacturer
Bourns Inc.
Series
MF-RXr
Datasheets

Specifications of MF-RX300/72-0

R Min/max
0.040 ~ 0.060 Ohm
Voltage - Max
72V
Time To Trip
19.8s
Current - Hold (ih) (max)
3A
Current - Trip (it)
6A
Current - Max
40A
Package / Case
Radial
Holding Current
3A
Tripping Current
6A
Initial Resistance Max
0.06ohm
Operating Voltage
72V
Ptc Fuse Case
Radial Lead
Initial Resistance Min
0.04ohm
Lead Spacing
10.2mm
Brand/series
MF-RX/72 Series
Current, Rating
3 A
Dimensions
0.814x0.122x1.05 "
Mounting Type
PCB
Primary Type
Resettable
Resistance, Dc
0.04 Ohms
Termination
Radial
Voltage, Rating
72 VDC
External Depth
3.1mm
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
MF-RX300/72
MF-RX300/72

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MF-RX300/72-0
Manufacturer:
Bourns Inc.
Quantity:
1 967
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 174545
MF-RX020/72
MF-RX025/72
MF-RX030/72
MF-RX040/72
MF-RX050/72
MF-RX065/72
MF-RX075/72
MF-RX090/72
MF-RX110/72
MF-RX135/72
MF-RX160/72
MF-RX185/72
MF-RX250/72
MF-RX300/72
MF-RX375/72
Environmental Characteristics
in Tripped State .................................................. 125 °C
Test Procedures And Requirements For Model MF-RX/72 Series
Electrical Characteristics
Model
V max.
Volts
72
72
72
72
72
72
72
72
72
72
72
72
72
72
72
I max.
Amps
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
I hold
Hold
0.20
0.25
0.30
0.40
0.50
0.65
0.75
0.90
1.10
1.35
1.60
1.85
2.50
3.00
3.75
Condition A
Test Conditions
Features
Amperes
MF-RX/72 Series - PTC Resettable Fuses
at 23 °C
72 V rated
Radial leaded devices
Cured, fl ame retardant epoxy polymer
insulating material meets UL 94V-0
requirements
RoHS compliant*
Agency recognition:
I trip
0.40
0.50
0.60
0.80
1.00
1.30
1.50
1.80
2.20
2.70
3.20
3.70
5.00
6.00
7.50
Trip
Min.
1.50
1.00
0.76
0.52
0.41
0.27
0.18
0.14
0.15
0.12
0.09
0.08
0.05
0.04
0.03
Resistance
at 23 °C
Ohms
Initial
Max.
2.84
1.95
1.36
0.86
0.77
0.48
0.40
0.31
0.25
0.19
0.14
0.12
0.08
0.06
0.05
Customers should verify actual device performance in their specifi c applications.
1 Hour (R 1 )
Resistance
Post-Trip
at 23 °C
Ohms
Max.
4.40
3.00
2.10
1.29
1.17
0.72
0.60
0.47
0.38
0.30
0.22
0.19
0.13
0.10
0.08
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Applications
Almost anywhere there is a low voltage power
supply, up to 72 V and a load to be protected,
including:
Accept/Reject Criteria
Security and fi re alarm systems
Loudspeakers
Power transformers
Amperes
Specifi cations are subject to change without notice.
at 23 °C
18.75
1.25
3.25
3.75
6.75
9.25
12.5
15.0
1.0
1.5
2.0
2.5
4.5
5.5
8.0
Max. Time
To Trip
Seconds
at 23 °C
11.4
12.6
15.6
19.8
24.0
2.2
2.5
3.0
3.9
4.0
5.3
6.3
7.2
8.2
9.6
Dissipation
at 23 °C
Tripped
Power
Watts
0.40
0.45
0.50
0.55
0.75
0.90
0.90
1.00
1.50
1.70
1.90
2.10
2.50
2.80
3.20
Typ.

Related parts for MF-RX300/72-0

MF-RX300/72-0 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

... Packaging options: BULK: 500 pcs. per bag. TAPE & REEL: MF-RX020/72-2 ~ MF-RX090/72-2 = 3000 pcs. per reel; MF-RX110/72-2 ~ MF-RX160/72-2 = 1500 pcs. per reel; MF-RX185/72-2 - MF-RX375/72-2 = 1000 pcs. per reel. AMMO-PACK: MF-RX020/72-AP ~ MF-RX090/72-AP = 2000 pcs. per pack; MF-RX110/72-AP ~ MF-RX160/72-AP = 1000 pcs. per pack; ...

Page 3

... MF-RX/72 Series - PTC Resettable Fuses Typical Time to Trip at 23 ˚C 100 10 1 0.1 0.01 0.001 0.1 1 Fault Current (Amps) The Time to Trip curves represent typical performance of a device in a simulated application environment. Actual performance in specifi c customer applications may differ from these values due to the infl uence of other variables. ...

Page 4

... MF-R/72 & MF-RX/72 Series Tape and Reel Specifi cations Devices taped using EIA468–B/IEC60286-2 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/72 & MF-RX/72 Series Tape and Reel Specifi cations Dimension Description Reel width Reel diameter Space between fl anges less device Arbor hole diameter Core diameter Box Consecutive missing places Empty places per reel Taped Component Dimensions - Figure Reel Dimensions - Figure 2 ...

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