MF-USMF050-2 Bourns Inc., MF-USMF050-2 Datasheet - Page 3

• Manufacturer Part Number: MF-USMF050-2
• Description: FUSE RESETTABLE .50A 13.2V SMD
• Manufacturer: Bourns Inc.
• Series: MF-USMFr
• Type: Fast Actingr

Specifications of MF-USMF050-2

• R Min/max: 0.180 ~ 0.900 Ohm
• Voltage - Max: 13.2V
• Time To Trip: 0.1s
• Current - Hold (ih) (max): 500mA
• Current - Trip (it): 1A
• Current - Max: 40A
• Package / Case: 1210 (3225 Metric)
• Holding Current: 500mA
• Tripping Current: 1A
• Initial Resistance Max: 0.9ohm
• Operating Voltage: 13.2V
• Ptc Fuse Case: 1210
• Initial Resistance Min: 0.18ohm
• Length: 3.22mm
• Brand/series: MF-USMF Series
• Current, Rating: 40 A
• Dimensions: 0.135x0.11x0.033 "
• Mounting Type: PCB
• Primary Type: Resettable
• Resistance, Dc: 0.18 Ohms
• Size: 1210
• Termination: SMT
• Voltage, Rating: 13.2 VDC
• External Depth: 0.8mm
• 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-USMF050-2TR

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.
MF-USMF SERIES, REV. M, 04/10
“freeXpansion Design” is a trademark of Bourns, Inc.
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
MF-USMF005
MF-USMF010
MF-USMF020
MF-USMF035
MF-USMF050
MF-USMF075
MF-USMF110
MF-USMF150
MF-USMF175X
Thermal Derating Chart - I hold (Amps)
Typical Time to Trip at 23 ˚C
MF-USMF Series - PTC Resettable Fuses
Model
0.001
0.01
100
0.1
10
1
0.1
MF-USMF005
MF-USMF010
MF-USMF020
-40 ˚C
0.08
0.15
0.32
0.51
0.76
1.10
1.60
2.30
2.80
MF-USMF035
MF-USMF050
MF-USMF075
1
-20 ˚C
0.07
0.13
0.28
0.46
0.66
0.97
1.42
2.02
2.45
Asia-Pacifi c: TEL [phone] • FAX [phone]
Europe: TEL [phone] • FAX [phone]
The Americas: TEL [phone] • FAX [phone]
www.bourns.com
Fault Current (Amps)
MF-USMF110
MF-USMF150
0 ˚C
0.06
0.12
0.24
0.40
0.58
0.86
1.26
1.76
2.10
MF-USMF175X
10
Ambient Operating Temperature
23 ˚C
0.05
0.10
0.20
0.34
0.48
0.72
1.10
1.43
1.75
40 ˚C
0.04
0.09
0.18
0.30
0.42
0.64
0.94
1.24
1.55
100
50 ˚C
0.04
0.08
0.16
0.27
0.38
0.58
0.86
1.11
1.45
Multifuse
Designator
Series
Hold Current, Ihold
Multifuse
Packaging
Represents total content. Layout may vary.
How to Order
Typical Part Marking
USMF = 1210 Surface Mount
Component
005-175 (0.05-1.75 Amps)
Packaged per EIA 481-1
-2 = Tape and Reel
60 ˚C
0.03
0.07
0.14
0.24
0.35
0.55
0.80
1.00
1.35
®
®
UNDERSCORE
SIGNIFIES
HALOGEN FREE
COMPLIANCE
Product
freeXpansion
A
6
MF - USMF 010 X - 2
70 ˚C
0.03
0.06
0.12
0.22
0.29
0.47
0.70
0.85
1.25
™
Design
PART IDENTIFICATION:
MF-USMF005 = 0
MF-USMF010 = 1
MF-USMF020 = 2
MF-USMF035 = 3
MF-USMF050 = 4
MF-USMF075 = 5
MF-USMF110 = 6
MF-USMF150 = 8
MF-USMF175X = 9
BIWEEKLY DATE CODE:
WEEK 1 AND 2 = A
WEEK 51 AND 52 = Z
85 ˚C
0.02
0.05
0.10
0.18
0.23
0.39
0.58
0.65
1.10