Tyco / Electronics
Raychem Circuit Protection
308 Constitution Drive
Menlo Park, CA 94025
Phone: 800-227-4856
Fax: 800-227-4866
PolySwitch®
PTC Devices
Overcurrent Protection Device
PRODUCT: SMD250F
DOCUMENT: SCD 25100
PCN: C42452
REV LETTER: C
REV DATE: MARCH 28, 2005
PAGE NO.: 1 OF 1
Specification Status: Released
Maximum Electrical Ratings
Operating Voltage / Interrupt Current
C
15V / 40A
12V / 60A
5V / 125A
H
Marking:
B
G
D
A
E
F
Notes:
1. All metal surfaces are tin plated.
2. Devices cannot be wave soldered.
3. Drawing not to scale.
TABLE I. DIMENSIONS:
A
MIN
MAX
mm: 8.00
9.40
in*: (0.315) (0.370)
MIN
--
--
B
H
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
3.00
6.00
6.71
0.56
0.71
0.56
0.71
3.68
3.94
0.66
1.37
0.43
(0.118) (0.236) (0.264) (0.022) (0.028) (0.022) (0.028) (0.145) (0.155) (0.026) (0.054) (0.017)
C
D
E
F
G
TABLE II. PERFORMANCE RATINGS:
CURRENT RATINGS**
TIME TO
TRIP**
RESISTANCE
VALUES
OHMS
AT 20°C
MIN
MAX*
0.035
0.085
TRIPPED-STATE
POWER
DISSIPATION**
WATTS AT
20°C
MAX
1.9
AMPS
AT 0°C
HOLD TRIP
2.8
6.0
AMPS
AT 20°C
HOLD TRIP
2.5
5.0
AMPS
SECONDS AT
AT 60°C
20°C, 8.0A
HOLD TRIP
MAX
1.6
3.8
25.0
* Maximum resistance is measured 1 hour after reflow.
** Values specified were determined using PCB’s with 0.070”X1.5 ounce copper traces.
Agency Recognition:
Reference Documents:
Precedence:
Effectivity:
CAUTION:
UL, CSA and TÜV
PS300, E.N. SMD 1.0x
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
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