TRF250-183U (RF0770-000) - Tyco Electronics

308 Constitution Drive

Menlo Park, CA 94025-1164

Phone: 800-227-4856

www.circuitprotection.com

PolySwitch®

PTC Devices

Overcurrent Protection Device

Raychem Circuit Protection Products

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

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

Lead Material:

22 AWG Sn-Plated Copper (0.65 mm [0.026”] nominal diamete r)

Marking:

None

TABLE I. DIMENSIONS:

A B C D E

MIN MAX MIN MAX MIN MAX MIN MAX NOM

mm: -- 6.5 -- 10.0 -- 3.0 4.7 -- 5.0

in:* -- (0.26) -- (0.39) -- (0.12) (0.19) -- (0.20)

*Rounded off approximation

TABLE II. PERFORMANCE RATINGS @ 20°C:

HOLD

CURRENT

(A)

TRIP

CURRENT

(A)

RESISTANCE (Ω) 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 PCN # (INTERNAL ONLY) PACKAGING TYPE NOTES

TRF250-183U RF0770-000 Bulk N/A

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