PolySwitch®
PTC Devices
308 Constitution Drive
Menlo Park, CA 94025-1164
Phone: 800-227-4856
www.circuitprotection.com
PRODUCT: TRF250-183U
DOCUMENT: SCD 26745
PCN: REFER TO TABLE III BELOW
REV LETTER: B
REV DATE: MAY 2, 2007
PAGE NO.: 1 OF 1
Overcurrent Protection Device
Raychem Circuit Protection Products
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:
250V
RMS
, 3A, 10 applications
Additional Info at 20°C:
•
Resistance matched: N/A
•
Lightning withstand: 1.5 kV per ITU-T K.20, K.21
•
Helps equipment meet ITU-T K.20, K.21
Lead Material:
22 AWG Sn-Plated Copper (0.65 mm [0.026”] nominal diameter)
Marking:
None
TABLE I. DIMENSIONS:
A
MIN
MAX
MIN
mm:
--
6.5
--
in:*
--
(0.26)
--
*Rounded off approximation
HOLD
TRIP
CURRENT CURRENT
(A)
(A)
B
MAX
10.0
(0.39)
MIN
--
--
C
MAX
3.0
(0.12)
MIN
4.7
(0.19)
D
MAX
--
--
E
NOM
5.0
(0.20)
TABLE II. PERFORMANCE RATINGS @ 20°C:
RESISTANCE (Ω)
TIME TO TRIP(Sec)
@ 3A
TYP
0.55
MAX
1.8
OPERATING
TEMPERATURE
(°C)
MIN
MAX
-40
85
TRIPPED
POWER DISSIPATION
(W)
TYP @ 100V
DC
0.9
R MIN R MAX R
1 MAX
*
0.183
0.685
0.8
2.0
3.4
*Post Trip Resistance measured after one hour.
TABLE III. APPLICABLE PART DESCRIPTIONS:
PART DESCRIPTION
TRF250-183U
PCN # (INTERNAL ONLY)
RF0770-000
PACKAGING TYPE
Bulk
NOTES
N/A
Agency Recognitions:
Reference Documents:
Precedence:
Effectivity:
CAUTION:
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.
Materials Information
ROHS Compliant
ELV Compliant
Pb-Free
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