PolySwitch®
PTC Devices
Overcurrent Protection Device
PRODUCT: RXEF075
DOCUMENT: SCD25221
REV LETTER: H
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:
24 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:
--
10.2
--
15.2
4.3
5.8
7.6
--
--
3.0
in*:
--
(0.40)
--
(0.60)
(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, 3.75A
OHMS
AT 20C
WATTS
AT 20C
WATTS
AT 20C
HOLD
HOL
D
TRIP
MIN
MAX
MAX
MAX
NOMINAL
MAX
0.75
0.75
1.50
0.25
0.40
6.3
0.60
0.92
1.77
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 orflame.
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: RXEF075
DOCUMENT: SCD25221
REV LETTER: H
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
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