MF-R025 Bourns Inc., MF-R025 Datasheet - Page 6

• Manufacturer Part Number: MF-R025
• Description: FUSE PTC RESETTABLE .25A HOLD
• Manufacturer: Bourns Inc.
• Series: MF-Rr

Specifications of MF-R025

• R Min/max: 1.000 ~ 1.950 Ohm
• Voltage - Max: 60V
• Time To Trip: 2.5s
• Current - Hold (ih) (max): 250mA
• Current - Trip (it): 500mA
• Current - Max: 40A
• Package / Case: Radial
• Holding Current: 250mA
• Tripping Current: 500mA
• Initial Resistance Max: 1.95ohm
• Operating Voltage: 60V
• Ptc Fuse Case: Radial Lead
• Initial Resistance Min: 1ohm
• Lead Spacing: 5.1mm
• Application: Almost anywhere there is a low Voltage power Supply and a load to be protected, including computers and peripherals, general electronics and automotive applications
• Brand/series: MF-R Series
• Current, Holding: 0.25 A @ 23 °C
• Current, Rating: 40 A
• Current, Ratings: 40 A
• Current, Tripping: 0.50 A @ 23 °C
• Dimensions: 0.291x0.122 "
• Mounting Type: PCB
• Primary Type: Resettable
• Resistance: 1.00 Ohms @ 23 °C
• Resistance, Dc: 1 Ohms
• Standards: UL Recognized, CSA Certified, TUV Certified
• Temperature, Operating, Maximum: 85 °C
• Temperature, Operating, Minimum: -40 °C
• Terminal Type: Radial Leaded
• Termination: Radial
• Thermistor Type: Resettable
• Tripped Power Dissipation: 0.45 W @ 23 °C
• Voltage, Rating: 60 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

Dimension Description
Lead spacing: MF-R, MF-R/90, MF-R/600, MF-RX, MF-RX/72
Lead spacing: MF-RX/250
Reel width
Reel diameter
Space between fl anges less device
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
Empty places per reel: MF-R, MF-RX, MF-R/90
Empty places per reel: MF-RX/250, MF-R/600
Taped Component Dimensions - Figure 1
Reel Dimensions - Figure 2
MF-R, MF-R/90, MF-R/600, MF-RX, MF-RX/72 & MF-RX/250 Series
Tape and Reel Specifi cations
h
H
h
1
I
2
L
w
h
I
1
P
P
0
1
A
h
f
B
Reference plane
F
D
0
W
d
0
H
0
direction
W
1
User
W
feed
Mark
of
IEC
W 1
w
f
h
h
Cross section A - B
F
F
d
User direction of feed
Customers should verify actual device performance in their specifi c applications.
H
H
t
Mark
1
EIA
W 2
F
F
a
h
c
n
n
p
Reel
p
(2.64) (14.6) (14.25)
(2.52) (14.6) (14.25)
(2.2)
Specifi cations are subject to change without notice.
56
67
64
Not specifi ed
Dimensions
Lower side
Upper side
Tape
(2.205)
(14.57)
(1.024)
0.1 %
(.187)
(3.15)
(3.58)
370.0
(14.6)
none
5.08
(0.2)
5.08
(0.2)
56.0
4.75
26.0
372
372
372
DIMENSIONS:
80
91
3
(14.6)
Dimensions
372
362
362
(INCHES)
(-.020/+.024)
MM
Tolerance
-0.5/+0.6
(±0.008)
(±.128)
(±.472)
±3.25
±12.0
max.
max.
max.
max.
max.
max.
max.
max.
±0.2