Datasheet > TRF600-250

TRF600-250

更新时间： 2024-10-30 13:45:23

品牌	Logo	应用领域
力特 - LITTELFUSE		电信
页数	文件大小	规格书
2页	436K
描述
我们的PolySwitch®系列电信和网络设备有助于满足对自恢复过流保护不断增长的需求。该系列产品可针对ITU、Telcordia GR1089和IEC 62368-1中定义的电流交叉和电源感应

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TRF600-250 数据手册

PRODUCT: TRF250-120S-B-0.5

DOCUMENT: SCD26481

REV LETTER: E

REV DATE: JULY 26,2016

PAGE NO.: 1 OF 2

PolySwitch®

PTC Devices

Overcurrent Protection Device

Specification Status: Released

Operating Conditions at 20°C:

Maximum Continuous Operating Voltage (V_MCO): 60V_DC

Maximum Interrupt Current (I_INT): 3A_RMS

Fault Ratings at 20°C:

250 V_RMS, 3A, 10 applications

Additional Info at 20°C:

 Resistance matched: 0.5 Ohm

 Lightning withstand: 1.5 kV per ITU-T K.20, K.21

 Helps equipment meet ITU-T K.20, K.21

Recommendations

 Helps equipment meet Telcordia GR1089 intrabuilding

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:

MIN

MAX

6.5

(0.26)

MIN

MAX

10.0

(0.39)

MIN

MAX

4.6

(0.18) (0.19)

MIN

4.7

MAX

NOM

5.0

(0.20)

MAX

7.0

(0.28)

mm:

in:*

*Rounded off approximation

TABLE II. PERFORMANCE RATINGS @ 20°C:

HOLD

CURRENT CURRENT

TRIP

RESISTANCE (Ω)

TIME TO TRIP(Sec)

@ 1A

OPERATING

TEMPERATURE

(°C)

TRIPPED

POWER DISSIPATION

(W) @ 60V_DC

(A)

R MIN R MAX R_{1 MAX}

TYP

MAX

MIN

MAX

TYP

MAX

0.120

0.240

4.0

8.0

16.0

1.5

2.5

-40

0.8

0.9

* Maximum device resistance at 20°C measured 1 hour post trip

TABLE III. APPLICABLE PART DESCRIPTIONS:

PART DESCRIPTION

PACKAGING TYPE

NOTES

TRF250-120S-B-0.5

Bulk

N/A

Agency Recognitions:

Reference Documents:

Precedence:

UL (File # E74889), CSA (File #78165), TUV

PS300, ITU-T K.20

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.

Materials Information

ROHS Compliant

ELV Compliant

Pb-Free

littelfuse.com

Specifications are subject to change without notice.

Revised July 26,2016

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