PRODUCT: SMDC125F/33
PolySwitch®
DOCUMENT: SCD28848
REV LETTER: A
REV DATE: JULY 26, 2016
PAGE NO.: 1 OF 2
PTC Devices
Overcurrent Protection Device
Specification Status: Released
Maximum Electrical Rating
Voltage: 33VDC
Short Circuit Current: 40A
Notes:
1. All terminations are tin plated.
2. Drawing not to scale
Marking:
TABLE I. DIMENSIONS:
A
B
C
D
E
MIN
7.30
MAX
7.70
MIN
0.45
MAX
0.71
MIN
4.90
MAX
5.30
MIN
0.25
MAX
0.95
MIN
0.20
(0.01)
mm:
in:
(0.29) (0.30) (0.02) (0.03) (0.19) (0.21) (0.01) (0.04)
TABLE II. PERFORMANCE RATINGS:
CURRENT RATINGS**
TIME TO
TRIP**
RESISTANCE TRIPPED-STATE
VALUES
POWER
DISSIPATION**
WATTS AT
25°C, 33V
MAX
AMPERES
AT 0°C
AMPERES
AT 25°C
AMPERES
AT 60°C
SECONDS
AT 25°C, 8.0A
MAX
OHMS
AT 25°C
HOLD TRIP HOLD TRIP HOLD TRIP
MIN MAX*
1.55 3.10 1.25 2.50 0.84 1.68
2.0
0.04
0.25
1.5
* Maximum resistance is measured 1 hour after reflow
** Values Specified were determined using PCB’s with 0.150”X1.5 ounce copper traces.
Agency Recognition:
Reference Document:
Precedence:
Effectivity:
CAUTION:
UL
PS300
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.
littelfuse.com
Specifications are subject to change without notice.
Revised July 26, 2016