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PolySwitch?
PRODUCT: TRF250-184
308 Constitution Drive
Menlo Park, CA 94025-1164
Phone: 800-227-4856
PTC Devices
Overcurrent Protection Device
DOCUMENT: SCD27165
REV LETTER: D
REV DATE: May 12, 2011
PAGE NO.: Page 1 of 2
www.circuitprotection.com
Specification Status: Released
Operating Conditions at 20 ° C:
Maximum Continuous Operating Voltage (V MCO ): 100V DC
Maximum Interrupt Current (I INT ): 10A RMS
Fault Ratings at 20°C:
250 V RMS , 3A, 10 applications
(See page 2 of this SCD for further application fault ratings)
Additional Info at 20°C:
? Resistance matched: n/a
? Lightning withstand: 4.0 kV with primary protection per ITU-T K.20, K.21
? Helps equipment meet ITU-T K.20, K.21 Recommendations
? Helps equipment meet Telcordia GR1089 intrabuilding requirements
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:*
-- 7.7 -- 10.5
-- (0.30) -- (0.41)
--
--
4.6
(0.18)
4.7
(0.19)
--
--
5.0
(0.20)
*Rounded off approximation
TABLE II. PERFORMANCE RATINGS @ 20°C: A s measured in Mueller Kelvin Clips:
HOLD
TRIP
RESISTANCE ( )
TIME TO TRIP(Sec)
OPERATING
TRIPPED
CURRENT CURRENT
@ 3A
TEMPERATURE
POWER DISSIPATION
(A)
(A)
(°C)
(W) @ 100V DC
R MIN R MAX
R 1 MAX *
TYP
MAX
MIN MAX
TYP MAX
0.184 1.0 1.2 2.4 3.1
0.5
1.3
0 85
0.9 1.1
*Post Trip Resistance measured after one hour.
TABLE III. APPLICABLE PART DESCRIPTIONS :
PART DESCRIPTION
TRF250-184
PACKAGING TYPE
Bulk
NOTES
N/A
Agency Recognitions:
Reference Documents:
Precedence:
Effectivity:
CAUTION:
Materials Information
UL (File # E74889), CSA (File #1026908), and TUV (License #R72041425).
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
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