Resettable Fuse

SMD250F-2

Manufacturer Part NumberSMD250F-2
DescriptionResettable Fuse
ManufacturerTyco Electronics
SeriesSMD2
TypePolyswitch Resettable Fuses
SMD250F-2 datasheets
 

Specifications of SMD250F-2

Holding Current2.5ATripping Current5A
Initial Resistance Max0.085ohmOperating Voltage15V
Initial Resistance Min0.035ohmResistance R10.085ohm
Length9.4mmFuse TerminalsSMD Caps
R Min/max0.035 ~ 0.085 OhmVoltage - Max15V
Time To Trip25sCurrent - Hold (ih) (max)2.5A
Current - Trip (it)5ACurrent - Max40A
Package / Case3425Hold Current2.5 Amps
Trip Current5 AmpsCurrent Rating (max)40 Amps
Resistance0.085 OhmsMaximum Voltage15 Volts
Termination StyleSolder PadMounting StyleSMD/SMT
Current Rating40 AmpsDimensions9.4 mm L x 6.71 mm W x 3 mm H
Lead Free Status / RoHS StatusLead free / RoHS CompliantOther namesRF0313-000
SMD250FTR
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Tyco / Electronics
Raychem Circuit Protection
308 Constitution Drive
Menlo Park, CA 94025
Phone: 800-227-4856
Fax: 800-227-4866
Specification Status: Released
Maximum Electrical Ratings
Operating Voltage / Interrupt Current
15V / 40A
12V / 60A
5V / 125A
Marking:
Notes:
1. All metal surfaces are tin plated.
2. Devices cannot be wave soldered.
3. Drawing not to scale.
TABLE I. DIMENSIONS:
A
B
MIN
MAX
MIN
MAX
mm: 8.00
9.40
--
3.00
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
AMPS
AT 0°C
AT 20°C
HOLD
TRIP
HOLD
TRIP
HOLD
2.8
6.0
2.5
5.0
* 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:
UL, CSA and TÜV
Reference Documents:
PS300, E.N. SMD 1.0x
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
© 2005 Tyco Electronics Corporation. All rights reserved.
PolySwitch®
PTC Devices
Overcurrent Protection Device
H
D
A
C
D
MIN
MAX
MIN
MAX
6.00
6.71
0.56
0.71
TIME TO
RESISTANCE
TRIP**
VALUES
AMPS
SECONDS AT
OHMS
AT 60°C
20°C, 8.0A
AT 20°C
TRIP
MAX
MIN
1.6
3.8
25.0
0.035
ELV Compliant
Pb-Free
PRODUCT: SMD250F
DOCUMENT: SCD 25100
PCN: C42452
REV LETTER: C
REV DATE: MARCH 28, 2005
PAGE NO.: 1 OF 1
B
E
E
F
MIN
MAX
MIN
MAX
MIN
0.56
0.71
3.68
3.94
0.66
TRIPPED-STATE
POWER
DISSIPATION**
WATTS AT
20°C
MAX*
MAX
0.085
1.9
C
G
F
G
H
MAX
MIN
1.37
0.43