PRODUCT: RXEF040S
PolySwitch®
DOCUMENT: SCD26111
REV LETTER: G
REV DATE: JULY 26, 2016
PAGE NO.: 1 OF 2
PTC Devices
Overcurrent Protection Device
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:
24 AWG Tin Plated Copper Clad Steel
Marking:
Manufacturer’s Mark
and Part Identification
X40
Lot Identification
TABLE I. DIMENSIONS:
A
B
C
D
E
MIN
--
--
MAX
7.6
(0.30)
MIN
--
--
MAX
11.0
(0.43)
MIN
4.3
(0.17)
MAX
5.8
(0.23) (0.30)
MIN
7.6
MAX
--
--
MIN
--
--
MAX
3.0
(0.12)
mm:
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
TRIPPED- STATE
POWER
DISSIPATION
AMPERES
AMPERES
OHMS
SECONDS AT
OHMS
WATTS
WATTS
AT 20C
AT 20C
AT 20C
20C, 2.0A
AT 20C
AT 20C
AT 20C
HOLD
0.40
HOLD
0.40
TRIP
0.80
MIN
0.55
MAX
0.86
MAX
3.8
MAX
1.29
NOMINAL
0.56
MAX
0.82
Recognitions:
UL, CSA, TUV, CQC
Reference Documents:
Precedence:
PS300
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*
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
