Datasheet > TCF250-145T-B-0.5

TCF250-145T-B-0.5

更新时间： 2024-09-10 19:32:27

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力特 - LITTELFUSE		/
页数	文件大小	规格书
2页	95K
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PTC Resettable Fuse

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TCF250-145T-B-0.5 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	Reach Compliance Code：	unknown
风险等级：	1.63	Base Number Matches：	1

TCF250-145T-B-0.5 数据手册

浏览型号TCF250-145T-B-0.5的Datasheet PDF文件第2页

PRODUCT: TCF250-145T-B-0.5

PolySwitch®

DOCUMENT: SCD26261

REV LETTER: F

REV DATE: JULY 26, 2016

PAGE NO.: 1 OF 2

PTC Devices

Overcurrent Protection Device

Specification Status: Released

Maximum Operating Voltage: 60V_DC

Fault Ratings at 20°C:

250V_RMS, 3A, 10 applications

Additional Info at 20°C:

• Resistance matched: 0.5 ohms

• Lightning withstand:

- ITU-T K.20/K21 - 1.5 kV

• Helps equipment meet ITU-T K.20/K.21recommendations

• Helps equipment meet Telcordia GR1089 intrabuilding requirements

Marking:

TABLE I. DIMENSIONS:

MIN

5.4

MAX

5.6

MIN

5.4

MAX

5.6

MIN

2.0

MAX

2.5

mm:

in:* (0.21)

(0.22)

(0.21)

(0.22)

(0.08)

(0.10 )

*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)

(A)

R MIN R MAX R_{1 MAX}**

TYP*

MAX

2.0

MIN

MAX

TYP @ 60V_DC

0.145

0.290

5.0

9.0

14.0

1.0

-40

1.0

* Dependent on Heat Sinking of Mounting Fixture

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

TABLE III. APPLICABLE PART DESCRIPTIONS:

PART DESCRIPTION

PCN # (INTERNAL USE ONLY)

PACKAGING TYPE

NOTES

N/A

TCF250-145T-B-0.5

RF0065-000

Bulk

Agency Recognitions:

Reference Documents:

Precedence:

UL (File #E74889)

PS300, ITU-T K.20/K.21

This specification takes precedence over documents referenced herein.

Effectivity:

CAUTION:

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

Littelfuse.com

Specifications are subject to change without notice.

Revised July 26, 2016

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