English
Language : 

RXEF300 Datasheet, PDF (1/2 Pages) Littelfuse – PTC Devices
PolySwitch®
PTC Devices
Overcurrent Protection Device
PRODUCT: RXEF300
DOCUMENT: SCD25228
REV LETTER: G
REV DATE: July 26, 2016
PAGE NO.: 1 OF 2
Specification Status: Released
Electrical Rating
Voltage: 72 V max (AC or DC)
Current: 40 A max (AC or DC)
Insulating Material:
Cured, Flame Retardant Epoxy
Polymer
meets UL94 V-0 Requirements
Lead Material:
20 AWG Tin Plated Copper
Marking:
Manufacturer’s Mark
X300 and Part Identification
Lot Identification
TABLE I. DIMENSIONS:
A
MIN MAX
B
MIN MAX
C
D
MIN
MAX MIN MAX MIN
--
23.9
--
28.6
9.4
10.9
7.6
--
--
mm:
--
(0.94)
--
(1.13) (0.37) (0.43) (0.30)
--
--
in*:
*Rounded off approximation
TABLE II. PERFORMANCE RATINGS :
I HOLD
RATED
CURRENT
CURRENT
RATINGS
INITIAL
RESISTANCE
VALUES
TIME TO TRIP
ONE HOUR
POST-TRIP
RESISTANCE
STANDARD
TRIP
AMPERES
AMPERES
OHMS
SECONDS AT
OHMS
AT 20C
HOLD
AT 20C
HOLD TRIP
AT 20C
MIN MAX
20C, 15.0A
MAX
AT 20C
MAX
3.0
3.0
6.0 0.04 0.06
19.8
0.10
E
MAX
3.0
(0.12)
TRIPPED- STATE
POWER DISSIPATION
WATTS
AT 20C
NOMINAL
2.8
WATTS
AT 20C
MAX
3.49
Agency Recognitions
Reference Documents:
Precedence:
Effectivity:
CAUTION:
UL, CSA, TUV, CQC
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