PolySwitch®
PTC Devices
Overcurrent Protection Device
PRODUCT: RXEF135K
DOCUMENT: SCD25699
REV LETTER: I
REV DATE: JULY 26, 2016
PAGE NO.: 1 OF 2
© 2016 Littelfuse, Inc. littelfuse.com
Specifications are subject to change without notice.
Revised July 26, 2016
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
Lot Identification
and Part Identification
TABLE I. DIMENSIONS:
A
B
C
D
E
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
mm:
--
13.58
--
19.8
4.3
5.8
7.6
--
--
3.0
in*:
--
(0.54)
--
(0.78)
(0.17)
(0.23)
(0.30)
--
--
(0.12)
*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
AT 20C
AMPERES
AT 20C
OHMS
AT 20C
SECONDS AT
20C, 6.75A
OHMS
AT 20C
WATTS
AT 20C
WATTS
AT 20C
HOLD
HOLD
TRIP
MIN
MAX
MAX
MAX
NOMINAL
MAX
1.35
1.35
2.70
0.12
0.19
9.6
0.30
1.7
2.51
Agency Recognitions: UL, CSA, TUV, CQC
Reference Documents: 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.
HF
PolySwitch®
PTC Devices
Overcurrent Protection Device
PRODUCT: RXEF135K
DOCUMENT: SCD25699
REV LETTER: I
REV DATE: JULY 26, 2016
PAGE NO.: 2 OF 2
© 2016 Littelfuse, Inc. littelfuse.com
Specifications are subject to change without notice.
Revised July 26, 2016
Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their
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operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation.
Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall
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