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PolySwitch?
PTC Devices
Overcurrent Protection Device
PRODUCT: TRF250-080T
DOCUMENT: SCD26314
REV LETTER: I
REV DATE: MAY 11, 2011
PAGE NO.: 1 OF 1
Specification Status: Released
Operating Conditions at 20 ° C:
Maximum Continuous Operating Voltage (V MCO ): 60V DC
Maximum Interrupt Current (I INT ): 3A RMS
Fault Ratings at 20°C:
250V RMS , 3A, 10 applications
Additional Info at 20°C:
? Resistance matched: n/a
? Lightning withstand: 1.0 kV per ITU-T K.20
? Helps equipment meet ITU-T K.20 Recommendations
Lead Material:
22 AWG Sn-Plated Copper (0.64 mm [0.025”] nominal diameter)
External Coating Material:
Cured, flame retardant epoxy polymer, meeting UL94 V-0 requirements
Marking:
TABLE I. DIMENSIONS:
A B
C
D
E
MIN MAX MIN MAX
MIN
MAX
MIN
MAX
NOM
mm:
in:*
-- 5.8 -- 9.9
-- (0.23) -- (0.39)
--
--
4.6
(0.18)
4.7
(0.19)
5.0
(0.20)
*Rounded off approximation
TABLE II. PERFORMANCE RATINGS @ 20°C:
HOLD
TRIP
RESISTANCE ( )
TIME TO TRIP(Sec)
OPERATING
TRIPPED
CURRENT CURRENT
@ 0.35A
TEMPERATURE
POWER DISSIPATION
(A)
(A)
(°C)
(W) @ 60V DC
R MIN R MAX
R 1 MAX *
MAX
MIN MAX
TYP MAX
0.080 0.160 15.0 22.0 33.0
4.0
-40 85
0.6 0.7
*Post Trip Resistance measured after one hour.
TABLE III. APPLICABLE PART DESCRIPTIONS:
PART DESCRIPTION
TRF250-080T
PACKAGING TYPE
Bulk
NOTES
N/A
Agency Recognitions:
Reference Documents:
Precedence:
Effectivity:
CAUTION:
Materials Information
UL (File #E74889), CSA (File #78165C), TUV
Raychem PS300, ITU-T K.20, K.21
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.
ROHS Compliant
ELV Compliant
Pb-Free
? 2006, 2011 Tyco Electronics Corporation, a TE Connectivity Ltd. Company. All rights reserved.
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