PolySwitch®
PTC Devices
308 Constitution Drive
Menlo Park, CA 94025-1164
Phone: 800-227-4856
PRODUCT: RXEF250
DOCUMENT: SCD 25227
PCN: C72501
REV LETTER: D
REV DATE: AUGUST 16, 2007
PAGE NO.: 1 OF 1
Overcurrent Protection Device
Raychem Circuit Protection Products
www.circuitprotection.com
Specification Status:
Released
Electrical Rating
Voltage: 72V MAX
Current: 40A MAX
Insulating Material:
Cured, Flame Retardant Epoxy Polymer
meets UL94 V-0 Requirements
Lead Material:
20 AWG Tin Plated Copper
Marking:
72
XF250
Manufacturer’s Mark
and Voltage
Part Identification
Lot Identification
(can be on back)
TABLE I. DIMENSIONS:
A
mm:
in*:
B
MIN
9.4
(0.37)
C
MAX
10.9
(0.43)
MIN
7.6
(0.30)
D
MAX
--
--
MIN
--
--
E
MAX
3.0
(0.12)
MIN
MAX
MIN
MAX
--
20.8
--
25.4
--
(0.82)
--
(1.00)
*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
OHMS
AT 20°C
MAX
0.13
TRIPPED-
STATE
POWER
DISSIPATION
WATTS
AT 20°C
NOMINAL
2.5
AMPERES
AT 20°C
HOLD
2.50
AMPERES
AT 20°C
HOLD TRIP
2.50
5.00
OHMS
AT 20°C
MIN
MAX
0.05
0.08
SECONDS AT
20°C, 12.5A
MAX
15.6
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
© 2005, 2007 Tyco Electronics Corporation. All rights reserved.
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