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Menlo Park, CA 94025-1164
Phone: 800-227-4856
www.circuitprotection.com
PolySwitch®
PTC Devices
Overcurrent Protection Device
Raychem Circuit Protection Products
PRODUCT: TRF250-183S
DOCUMENT: SCD 26744
REV LETTER: D
REV DATE: APRIL 21, 2008
PAGE NO.: 1 OF 1
Specification Status: Released
Operating Conditions at 20°C:
Maximum Continuous Oper ating Voltage (VMCO): 100VDC
Maximum Interrupt Current (IINT ): 10ARMS
Fault Ratings at 20°C:
250VRMS, 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 Recomm endations
Helps equipment meet Telcordia GR1089 intrabuilding requirements
Lead Material:
22 AWG Sn-Plated Copper (0.65 mm [0.026”] nominal diamete r)
External Coating Material:
Cured, flame retardant epoxy polymer, meeting UL94 V-0 requirements
Marking:
(Center-to-Center)
D
B
E
C
A
TABLE I. DIMENSIONS:
A B C D E
MIN MAX MIN MAX MIN MAX MIN MAX NOM
mm: -- 7.5 -- 9.5 -- 3.8 4.7 -- 5.0
in:* -- (0.29) -- (0.37) -- (0.15) (0.19) -- (0.20)
*Rounded off approximation
TABLE II. PERFORMANCE RATINGS @ 20°C:
HOLD
CURRENT
(A)
TRIP
CURRENT
(A)
RESISTANCE () TIME TO TRIP(Sec)
@ 3A
OPERATING
TEMPERATURE
(°C)
TRIPPED
POWER DISSIPATION
(W)
R MIN R MAX R1 MAX* TYP MAX MIN MAX TYP @ 100VDC
0.183 0.685 0.8 2.0 3.4 0.55 1.8 -40 85 0.9
*Post Trip Resistance measur ed after one hour.
TABLE III. APPLICABLE PART DESCRIPTIONS:
PART DESCRIPTION PACKAGING TYPE NOTES
TRF250-183S Bulk N/A
TRF250-183S-2 Tape and Reel Dim “D” not applicable
Agency Recognitions: UL (File #E74889), CSA (File #78165C), TUV
Reference Documents: Raychem PS300, ITU-T K.20, K.21
Precedence: This specification takes prec edence over documents referenced h erein.
Effectivity: Reference documents shall be the issue i n e ffect on the date of invitation for bid.
CAUTION: Operation beyond the rated voltage or current may result in rupture, electrical arcing or fla me.
Materials Information
ROHS Compliant ELV Compliant Pb-Free
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