MF-RX300 Bourns Inc., MF-RX300 Datasheet - Page 3

• Manufacturer Part Number: MF-RX300
• Description: FUSE PTC RESETTABLE 3A HOLD
• Manufacturer: Bourns Inc.
• Series: MF-RXr

Specifications of MF-RX300

• R Min/max: 0.040 ~ 0.060 Ohm
• Voltage - Max: 60V
• 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: 60V
• Ptc Fuse Case: Radial Lead
• Initial Resistance Min: 0.04ohm
• Lead Spacing: 10.2mm
• External Depth: 3.1mm
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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: all others
Hold down tape
Top distance between tape edges
Sprocket hole position
Sprocket hole diameter
Abscissa to plane (straight lead)
Abscissa to plane (kinked lead)
Abscissa to top (straight lead)
Abscissa to top (kinked lead)
Overall width w/lead protrusion (straight lead)
Overall width w/lead protrusion (kinked lead)
Overall width w/o lead protrusion (straight lead)
Overall width w/o lead protrusion (kinked lead)
Lead protrusion
Protrusion of cutout
Protrusion beyond hold tape
Sprocket hole pitch
Pitch tolerance
Device pitch: MF-R005–MF-R160, MF-R/90 & MF-RX/72
Device pitch: MF-R185–MF-R400,
MF-RX110–MF-RX375
Tape thickness
Tape thickness with splice: MF-R010–MF-R160
Tape thickness with splice: MF-R250–MF-R1100
MF-RX110–MF-RX375 & MF-R/90
Splice sprocket hole alignment
Body lateral deviation
Body tape plane deviation
Lead spacing
Reel width
Reel diameter
Space between flanges less device
MF-R, MF-RX, MF-R/90, MF-RX/72 & MF-RX/250 Series
Tape and Reel Specifications
IEC
Mark
W
W 0
W 2
W 1
D 0
H
H 0
H 1
H 1
I 1
L
I 2
P 0
t
∆h
∆p
F
w
d
W 1
EIA
Mark
W
W 4
W 6
W 5
D 0
H
H 0
H 1
H 1
C 1
C 1
C 2
C 2
L 1
L
I 2
P 0
t
t 1
t 1
∆h
∆p
F
W 2
a
h
20 consecutive
No protrusion
Not specified
Dimensions
(1.496)
(1.268)
(2.165)
(2.126)
(1.673)
(2.205)
(14.57)
(.709)
(.433)
(.118)
(.354)
(.157)
(.728)
(.039)
(.433)
(.035)
(.059)
(.091)
(.187)
(.63)
(1.7)
(0.5)
(0.5)
(1.0)
(0.2)
18.5
38.0
32.2
55.0
43.2
54.0
42.5
12.7
12.7
25.4
5.08
4.75
370
1.0
0.9
1.5
2.3
18
11
16
11
0
0
0
56
9
4
3
Dimensions
Tolerance
(-0.02/+.039)
(-0.02/+0.03)
(±.012)
-0.5/+0.75
max.
max.
max.
max.
max.
max.
max.
max.
max.
max.
max.
max.
(±.039)
(±.021)
(±.008)
max.
max.
(±.128)
DIMENSIONS =
-0.5/+1.0
min.
(±.0078)
±0.3
±3.25
(±.118)
(±.012)
±1.0
±0.3
±0.2
±1
(±.02)
±0.2
±3.0
±0.5
±0.3
(INCHES)
MM