RUSBF250 Datasheet, PDF (1/2 Pages) Littelfuse – Specification Status: Released

PolySwitch®
PTC Devices
Overcurrent Protection Device
PRODUCT: RUSBF250
DOCUMENT: SCD25249
REV LETTER: F
REV DATE: JULY 26, 2016
PAGE NO.: 1 OF 2
Specification Status: Released
Electrical Rating
Voltage: 16VDC MAX
Current: 40A MAX
Insulating Material:
Cured, Flame Retardant Epoxy Polymer
meets UL 94 V-O Requirements
Lead Material:
24 AWG Tin Plated Copper Clad Steel
Marking:
Manufacturer’s Mark
R250 ^{and Part Identification}
Lot Identification
TABLE I. DIMENSIONS:
A
B
C
D
E
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
mm: -- 11.4 -- 18.3 4.3 5.8 7.6
--
in*: -- (0.45) -- (0.72) (0.17) (0.23) (0.30) --
--
3.0
-- (0.12)
*Rounded off approximation
TABLE II. PERFORMANCE RATINGS :
I HOLD
RATED
CURRENT
CURRENT
RATINGS
AMPERS
AT 20C
HOLD
AMPERES
AT 20C
HOLD TRIP
INITIAL RESISTANCE
VALUES
OHMS
AT 20C
MIN TYP MAX
ONE HOUR
POST-TRIP
RESISTANCE
STANDARD
TRIP
OHMS
AT 20C
MAX
TIME TO
TRIP
@ 8A
TRIPPED-STATE
POWER
DISSIPATION
SECONDS
AT 20C
WATTS
AT 20C
2.50
2.50
5.00 0.02 0.03 0.036
0.06
40
1.2
Agency Recognitions:
Reference Documents:
Precedence:
Effectivity:
CAUTION:
UL, CSA, TUV
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.
Specifications are subject to change without notice
Revised July 26,2016
littelfuse.com