PolySwitch®
PTC Devices
Overcurrent Protection Device
PRODUCT: SMD250F/15-2920
DOCUMENT: SCD27978
REV LETTER: D
REV DATE: JULY 6, 2011
PAGE NO.: 1 OF 1
Specification Status: Released
Maximum Electrical Ratings
Operating Voltage / Interrupt Current
15V
DC
/ 40A
Marking:
Notes:
1. All metal surfaces are tin plated.
2. Devices cannot be wave soldered.
3. Drawing not to scale.
HDAE
B
C
G
F
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:
6.73
7.98
-- 3.00
4.8 5.44
0.56
0.71
0.56
0.71
2.16
2.41
0.66
1.37
0.43
in*:
(0.265)
(0.314)
--
(0.118)
(0.19)
(0.214)
(0.022)
(0.028)
(0.022)
(0.028)
(0.085)
(0.095)
(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 2
0°C
WATTS AT
20°C
HOLD
TRIP
HOLD
TRIP
HOLD
TRIP
MAX MIN MAX*
MAX
2.8 5.6 2.5 5.0 1.6 3.2 10 0.035
0.085
1.5
* Maximum resistance is measured 1 hour after reflow.
** Values specified were determined using PCB’s with 0.100”X2.0 ounce copper traces.
Agency Recognitions: 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.
© 2010, 2011 Tyco Electronics Corporation, a TE Connectivity Ltd. Company. All rights reserved.
HF
