ASMD250F Datasheet, PDF (1/2 Pages) Littelfuse – Overcurrent Protection Device

PolySwitch®
PTC Devices
Overcurrent Protection Device
PRODUCT: ASMD250F
DOCUMENT: SCD26584
REV LETTER: F
REV DATE: JULY 26, 2016
PAGE NO.: 1 OF 2
Specification Status: Released
Maximum Electrical Ratings
Operating Voltage / Interrupt Current
16VDC / 40A
12VDC / 60A
5VDC / 125A
H
B
Marking
D
E
A
C
G
F
Notes:
1. All metal surfaces are tin plated.
2. Devices cannot be wave soldered.
3. Drawing not to scale.
TABLE I. DIMENSIONS:
A
B
C
D
E
F
G
H
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN
mm: 8.00 9.40
--
3.00 5.99 6.71 0.56 0.71 0.56 0.71 3.68 3.94 0.66 1.37 0.43
in*: (0.315) (0.370) -- (0.118) (0.236) (0.264) (0.022) (0.028) (0.022) (0.028) (0.145) (0.155) (0.026) (0.054) (0.017)
TABLE II. PERFORMANCE RATINGS:
CURRENT RATINGS**
AMPS
AT 0°C
HOLD TRIP
2.32 5.89
AMPS
AT 20°C
HOLD TRIP
1.97 5.0
AMPS
AT 60°C
HOLD TRIP
1.32 3.35
TIME TO
TRIP**
SECONDS AT
25°C, 9.85A
MAX
30
RESISTANCE
VALUES
OHMS
AT 25°C
MIN MAX*
0.035 0.085
TRIPPED-STATE
POWER
DISSIPATION**
WATTS AT
25°C
TYP.
1.2
* Maximum resistance is measured 1 hour after reflow.
** Values specified were determined using PCB’s with 0.120”X2.0 ounce copper traces.
Reference Documents:
Precedence:
Effectivity:
CAUTION:
PS300, PS400
This specification takes precedence over documents referenced herein.
Reference documents shall be the issue in effect on the date of invitation for bid.
Operation beyond the rated voltage or current may result in rupture, electrical arcing or flame.
Materials Information
ROHS Compliant
ELV Compliant
Pb-Free
Halogen Free*
HF
* Halogen Free refers to: Br≤900ppm, Cl≤900ppm, Br+Cl≤1500ppm.
© 2016 Littelfuse,Inc
Specifications are subject to change without notice.
Revised July 26, 2016
Littelfuse.com