PolySwitch®
PTC Devices
Overcurrent Protection Device
PRODUCT: SMD250F
DOCUMENT: SCD25100
REV LETTER: G
REV DATE: JULY 26, 2016
PAGE NO.: 1 OF 2
© 2016 Littelfuse,Inc Littelfuse.com
Specifications are subject to change without notice.
Revised July 26, 2016
Specification Status: Released
Maximum Electrical Ratings
Operating Voltage / Interrupt Current
15V
DC
/ 40A
12V
DC
/ 60A
5V
DC
/ 125A
Marking:
Notes:
1. All metal surfaces are tin plated.
2. Devices cannot be wave soldered.
3. Drawing not to scale.
F
G
B
C
E
A
H
D
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 6.00 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** TIME TO
TRIP**
RESISTANCE
VALUES
TRIPPED-STATE
POWER
DISSIPATION**
AMPS
AT 0°C
AMPS
AT 20°C
AMPS
AT 60°C
SECONDS AT
20°C, 8.0A
OHMS
AT 20°C
WATTS AT
20°C
HOLD TRIP HOLD TRIP HOLD TRIP MAX MIN MAX* MAX
2.8 6.0 2.5 5.0 1.6 3.8 25.0 0.035 0.085 1.9
*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: UL, CSA, TÜV
Reference Document: PS300
Precedence: This specification takes precedence over documents referenced herein.
Effectivity: Reference documents shall be the issue in effect on the date of invitation for bid.
CAUTION: 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*
* Halogen Free refers to: Br≤900ppm, Cl≤900ppm, Br+Cl≤1500ppm.
HF