MF-RX250/72-0 Bourns Inc., MF-RX250/72-0 Datasheet - Page 5

• Manufacturer Part Number: MF-RX250/72-0
• Description: FUSE PTC RESET 2.50A HOLD
• Manufacturer: Bourns Inc.
• Series: MF-RXr
• Type: PTC Resettable Fusesr

Specifications of MF-RX250/72-0

• R Min/max: 0.050 ~ 0.080 Ohm
• Voltage - Max: 72V
• Time To Trip: 15.6s
• Current - Hold (ih) (max): 2.5A
• Current - Trip (it): 5A
• Current - Max: 40A
• Package / Case: Radial
• Hold Current: 2.5 Amps
• Trip Current: 5 Amps
• Current Rating (max): 40 Amps
• Resistance: 0.08 Ohms
• Maximum Voltage: 72 VoltsDC
• Termination Style: Radial
• Mounting Style: Through Hole
• Dimensions: 17.84 mm L x 3.1 mm W x 23.84 mm H
• Lead Spacing: 10.2 mm
• Operating Temperature Range: - 40 C to + 85 C
• Initial Resistance (min): 50mOhm
• Initial Resistance (max): 80mOhm
• Voltage Rating Max: 72V
• Trip Time (max): 15.6@12.5As
• Power Dissipation (typ): 2.5W
• Post Trip Resistance (max): 130mOhm
• Wire Form: Straight
• Agency Approvals: UL
• Operating Temperature Min Deg. C: -40C
• Operating Temperature Max Deg. C: 85C
• Brand/series: MF-RX/72 Series
• Current, Rating: 2.5 A
• Mounting Type: PCB
• Primary Type: Resettable
• Resistance, Dc: 0.05 Ohms
• Termination: Radial
• Voltage, Rating: 72 VDC
• Holding Current: 2.5A
• Tripping Current: 5A
• Initial Resistance Max: 0.08ohm
• Operating Voltage: 72V
• Ptc Fuse Case: Radial Leaded
• External Depth: 3.1mm
• Initial Resistance Min: 0.05ohm
• 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-RX250/72; MF-RX250/72

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
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 Specifications
∆h
w
h
∆h
H
I
1
2
L
I
1
P
P
0
1
h
f
A
d
direction
B
Reference plane
User
feed
F
D
of
0
IEC
Mark
W
h
h
f
0
H
0
W
1
W
EIA
Mark
c
n
n
Customers should verify actual device performance in their specific applications.
Cross section A - B
User direction of feed
(2.64)
(2.52)
(2.2)
67
64
H
56
Dimensions
Not specified
H
t
1
(1.024)
0.1 %
(14.6)
none
(3.15)
(3.58)
(14.6)
(14.6)
372
Reel
372
372
26
80
91
∆p
Specifications are subject to change without notice.
3
(14.25)
(14.25)
(14.6)
362
372
362
Dimensions
Lower side
Upper side
Tape
∆p
Tolerance
DIMENSIONS =
(±.472)
max.
max.
max.
max.
max.
max.
±12.0
(INCHES)
MM