Tyco / Electronics
Raychem Circuit Protection
308 Constitution Drive
Menlo Park, CA 94025-1164
Phone: 800-227-4856
Fax: 800-227-4866
PolySwitch®
PTC Devices
Overcurrent Protection Device
PRODUCT: TR250-120
DOCUMENT: SCD 22547
PCN: 018960, 395235
REV LETTER: J
REV DATE: JANUARY 14, 2002
PAGE NO.: 1 OF 1
Specification Status: RELEASED
Max Electrical Rating at 20°C
Operating Voltage: 60V
DC
Fault
Voltage: 250V
RMS
Interrupt Current: 3A
RMS
Lead Material : 22 AWG Sn/Pb plated
copper
Marking:
Ra
chem Lo
o
Lot Identification
Part Identification
20
TABLE I. DIMENSIONS:
A B C D E F
Min Max Min Max Min Max Min Max Nom Max
mm: -- 6.5 -- 11.0 -- 4.6 4.7 -- 5.0 7.0
in: -- (0.256) -- (0.433) -- (0.180) (0.185) -- (0.197) (0.276)
TABLE II. PERFORMANCE RATINGS @ 20°
°°
°C (unless otherwise noted):
IHOLD (A)
RESISTANCE (Ω)
@ 20° C
TIME TO TRIP
@ 1A
OPERATING
TEMPERATURE (°C)
20°C 70°C R MIN R MAX R
1 MAX
* Seconds, Typical MIN MAX
0.120 0.060 4.0 8.0 16.0 1.5 -40 85
*Maximum device resistance at 20°C measured 1 hour post trip.
Additional Rating @ 20°C
Lightning Withstand: ITU @ 1.5KV Storage Temperature: -40° to 85° C
Reference Documents: PS300
Precedence: This specification takes precedence over documents referenced herein.
Effectivity: Reference documents shall be the issue in effect on the date of invitation for bid.
CAUTION: Operation beyond the rated voltage or current may result in rupture, electrical arcing or flame.
