MF-R025 Bourns Inc., MF-R025 Datasheet - Page 5

• 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

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
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-down tape
Sprocket hole pitch
Pitch tolerance
Device pitch: MF-R005–MF-R160, MF-R/90,
MF-RX110/72–MF-RX185/72
Device pitch: MF-R185–MF-R400, MF-RX110–MF-RX375
MF-R/600, MF-RX250/72–MF-RX375/72
Tape thickness
Tape thickness with splice: MF-R010–MF-R160,
MF-RX110/72–MF-RX185/72
Tape thickness with splice: MF-R250–MF-R1100,
MF-RX110–MF-RX375, MF-R/90, MF-RX250/72-MF-RX375/72
Splice sprocket hole alignment
Body lateral deviation
Body tape plane deviation
Customers should verify actual device performance in their specifi c applications.
Specifi cations are subject to change without notice.
MF-R, MF-R/90, MF-R/600, MF-RX, MF-RX/72 & MF-RX/250 Series
Tape and Reel Specifi cations
Mark
IEC
W 0
W 2
W 1
D 0
H 0
H 1
H 1
Δ p
P 0
Δ h
W
I 1
I 2
H
L
t
Mark
EIA
W 4
W 6
W 5
D 0
H 0
H 1
H 1
C 1
C 1
C 2
C 2
P 0
Δ p
L 1
Δ h
W
H
I 2
t 1
t 1
L
t
20 consecutive
No protrusion
Not specifi ed
Dimensions
(1.496)
(1.268)
(2.165)
(2.126)
(1.673)
(.709)
(.433)
(.118)
(.354)
(.157)
(.728)
(.039)
(.433)
(.035)
(.059)
(.091)
18.5
(.63)
38.0
(1.7)
54.0
42.5
12.7
(0.5)
(0.5)
(1.0)
32.2
55.0
43.2
12.7
25.4
1.5
2.3
18
16
1.0
0.9
11
11
3
9
4
0
0
0
Dimensions
DIMENSIONS:
(-0.02/+.039)
(-0.02/+0.03)
-0.5/+0.75
Tolerance
-0.5/+1.0
(±.0078)
(±.118)
(±.012)
(±.039)
(±.012)
(±.024)
(±.012)
(±.039)
(±.051)
(±.02)
max.
max.
max.
max.
max.
max.
max.
max.
max.
max.
max.
max.
±0.2
±3.0
±0.5
±0.3
±0.3
±0.6
±0.3
±1.0
±1.3
min.
±1
(INCHES)
MM