FUSES
/ SICHERUNGEN
Resettable fuses
Surface Mount
PTC-Fuses
Type PFMU
2,8 x 3,4 mm
fast tripping
Packaged per EIA 481-1
100
PFMU
Typical Time to Trip at 23 ˚C
PF
MU
.00
5.2
PF
MU
.01
0.2
Agency recognition:
UL, CSA, TÜV
10
1
Time to trip
(s)
0.1
0.01
0.001
50
75
100
01
0.1
PF
MU
.02
0.2
PF
MU
.03
5.2
PF
MU
.05
PF
0.2
MU
.07
5.2
PF
MU
.11
0.2
1
1
10
10
Fault current
(A)
Dimensions
A
C
Solder pad layouts
?
1.1 ± 0.1
(.043 ± .004)
1.1 ± 0.1
(.043 ± .004)
2.6 ± 0.1
(.102 ± .004)
Min.
D
1.7 ± 0.1
(.067 ± .004)
B
Applications
•
•
•
•
PC motherboards
PC modems
USB
General electronics: Phones,
fax machines, televisions,
printers, video equipment,
PDA
Typical Part Marking
Layout may vary
Part identification
Manufacturer’s
Trademark
Date code week 1 of 2000 = 0A (year and week)
week 27 of 2000 = A0 (week and year)
Environmental Characteristics
Operating/Storage Temperature
/ Einsatz/Lagertemp.
Maximum Device Surface Temperature in Tripped State
/
Passive Aging
/ passive Alterung
Humidity Aging
/ Feuchtigkeitsalterung
Thermal Shock
/ Thermischer Schock
Solvent Resistance
/ Lösungsmittel-Beständigkeit
Vibration
-40 °C
to
+85 °C
125 °C
+85 °C, 1000
hours
/ Std.
± 5%
typ. resist. change
+85 °C, 85% R.H. 1000
hours
/ Std.
± 10%
typ. resist. change
+85 °C/–40 °C 20
times
/ Zyklen
± 10%
typ. resist. change
MIL-STD-202, Method 215
No change
MIL-STD-883C, Method 2007.1,
No change
Condition A
Test Procedures And Requirements For Model PFMU Series
Test
/ Test
Test Conditions
/ Bedingungen
Visual/Mech.
/ visuell/mech.
Verify dimensions and materials
/ Kontrolle Abmess./Mat.
Resistance
/ Widerstand
In still air @ 23 °C
/ bei ruhiger Luft 23 °C
Time to Trip
/ Trip-Zeit
At specified current, V
max
23 °C
/ Bei entspr. Strom
Hold Current
/ Haltestrom
30 min. at I
hold
/ bei Haltestrom
Trip Cycle Life
/ Trip-Zyklen
V
max
, I
max
, 100 cycles
/ Zyklen
Trip Endurance
/ Zeit im Tripzustand
V
max
, 48 hours
/ Stunden
Accept/Reject Criteria
Per MF physical description
R
min
≤
R
≤
R
max
T
≤
max.
time to trip
/ Tr
sec.)
(
No trip
No arcing or burning
No arcing or burning
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11
FUSES
/ SICHERUNGEN
Resettable fuses
Electrical Characteristics /
Elektrische Daten
Type
/ Typ
I
max
V
max
I
hold
I
trip
Initial
Resistance
/
1 Hour (R1) Post-
Max. Time
Reflow Resistance
/
to trip at 23 °C/8A
/
Tripped Power
Dissipation
PFMU
Amperes at 23 °C
/
A
10
10
10
40
40
40
40
V
30
30
30
6
13.2
6
6
Hold
0.05
0.10
0.20
0.35
0.50
0.75
1.10
Trip
0.15
0.30
0.40
0.75
1.00
1.50
2.20
Ohms at 23 °C
R
min.
2.80
0.80
0.40
0.20
0.18
0.07
0.05
R
1 max.
50.0
15.0
5.0
1.30
0.90
0.45
0.21
Amperes
/
at
/ bei
23 °C
0.25
0.5
8.0
8.0
8.0
8.0
8.0
Seconds
/
at
/ bei
23 °C
1.5
0.6
0.2
0.2
0.1
0.1
0.1
Watts at 23 °C
/
PFMU.005.2
PFMU.010.2
PFMU.020.2
PFMU.035.2
PFMU.050.2
PFMU.075.2
PFMU.110.2
0.8
0.8
0.8
1.0
1.0
1.2
1.2
Dimensions
Model
/ Modell
PFMU.005.2
PFMU.010.2
PFMU.020.2
PFMU.035.2
PFMU.050.2
PFMU.075.2
PFMU.110.2
Packaging: 3000 pcs. per reel
/
min.
3.00
(0.118)
3.00
(0.118)
3.00
(0.118)
3.00
(0.118)
3.00
(0.118)
3.00
(0.118)
3.00
(0.118)
A
max.
3.43
(0.135)
3.43
(0.135)
3.43
(0.135)
3.43
(0.135)
3.43
(0.135)
3.43
(0.135)
3.43
(0.135)
min.
2.35
(0.092)
2.35
(0.092)
2.35
(0.092)
2.35
(0.092)
2.35
(0.093)
2.35
(0.092)
2.35
(0.092)
B
max.
min.
2.80
0.38
(0.110)
(0.015)
2.80
0.38
(0.110)
(0.015)
2.80
0.38
(0.110)
(0.015)
2.80
0.38
(0.110)
(0.015)
2.80
0.38
(0.110)
(0.015)
2.80
0.38
(0.110)
(0.015)
2.80
0.38
(0.110)
(0.015)
Dimensions in mm/inches
C
max.
0.62
(0.025)
0.62
(0.025)
0.62
(0.025)
0.62
(0.025)
0.62
(0.024)
0.62
(0.025)
0.62
(0.025)
D
min.
0.30
(0.012)
0.30
(0.012)
0.30
(0.012)
0.30
(0.012)
0.30
(0.012)
0.30
(0.012)
0.30
(0.012)
Soldering Profile
300
250
Maximum Package Body Temperature (220 °C)
How To Order
PF
PTC-Fuse
Style
MU = 1210 Surface Mount Component
Hold Current, I
hold
005-110 (0.05 A - 1.10 A)
Packaging
Packaged per EIA 481-1
2 =
Tape and reel
/
Melting Temperature of Solder (183 °C)
MU .xxx
.x
Temperature (° C)
200
150
2 Minutes or More
100
50
Preheat
10° to 20 C
per Second
Less than
120 °C per
Second
0
0
30
60
Flux Activation
Reflow
Cool
100
150
Time (Second)
(s)
200
250
Note
• PFMU models can be wave soldered and reworked.
Thermal Derating Chart-I
hold
(Amps)
Type
/ Typ
PFMU.005.2
PFMU.010.2
PFMU.020.2
PFMU.035.2
PFMU.050.2
PFMU.075.2
PFMU.110.2
Ambient Operating Temperature
–40 ˚C
–20 ˚C
0 ˚C
0.08
0.07
0.06
0.16
0.14
0.12
0.32
0.28
0.24
0.47
0.45
0.40
0.76
0.67
0.58
1.00
0.97
0.86
1.60
1.42
1.26
23 ˚C
0.05
0.10
0.20
0.35
0.50
0.75
1.10
40 ˚C
0.04
0.08
0.16
0.33
0.43
0.64
0.94
50 ˚C
0.04
0.07
0.14
0.28
0.40
0.59
0.86
60 ˚C
0.03
0.06
0.12
0.24
0.36
0.54
0.80
70 ˚C
0.03
0.05
0.10
0.21
0.32
0.48
0.70
85 ˚C
0.02
0.04
0.06
0.18
0.28
0.40
0.58
12
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