PFMD Datasheet, PDF (1/2 Pages) Schurter Inc. – Surface Mount PTC-Fuses

FUSES / SICHERUNGEN
Resettable fuses
Surface Mount
PTC-Fuses
Type PFMD
3,4 x 4,7 mm
fast tripping
Packaged per EIA 481-1
Agency recognition:
UL, CSA, TÜV
50
75 100
Dimensions / Abmessungen
A
C
B
D
Solder pad layouts
Applications
• Hard disk drives
• PC motherboards
• PC peripherals
• Point-of-sale (POS)
equipment
• PCMCIA cards
• General Electronics
PFMD
Typical Time to Trip at 23 ˚C
100
10
PFMD.020.2
1
0.1
0.01
0.001
0.1
PFMD.010.2
PFMD.014.2
PFMD.030.2
1
10
Fault current (A)
PFMD.260.2
PFMD.200.2
PFMD.160.2
PFMD.150.2
PFMD.125.2
PFMD.110.2
PFMD.075.2
PFMD.050.2
100
Typical Part Marking
Layout may vary
Manufacturer’s
Trademark
Part identification
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 /
–40 °C to / bis +85 °C
125 °C
Passive Aging / passive Alterung
Humidity Aging / Feuchtigkeitsalterung
Thermal Shock / Thermischer Schock
Solvent Resistance / Lösungsmittel-Beständigkeit
Vibration
+85 °C, 1000 hours / Std.
± 5% typ. resist. change
+85 °C, 85% R.H. 1000 hours / Std. ± 5% typ. resist. change
+85 °C to/bis –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 PFMD Series
Test / Test
Test Conditions / Bedingungen
Accept/Reject Criteria
Visual/Mech. / visuell/mech.
Resistance / Widerstand
Time to Trip / Trip-Zeit
Hold Current / Haltestrom
Trip Cycle Life / Trip-Zyklen
Trip Endurance / Zeit im Tripzustand
Verify dimensions and materials / Kontrolle Abmess./Mat. Per PF physical description
In still air @ 23 °C / bei ruhiger Luft 23 °C
Rmin ≤ R ≤ Rmax
At specified current, Vmax, 23 °C / Bei entspr. Strom
T ≤ max. time to trip / Trip-Zeit
30 min. at Ihold / bei Haltestrom
No trip
Vmax, Imax, 100 cycles / Zyklen
No arcing or burning
Vmax, 48 hours / Stunden
No arcing or burning
(sec.)
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