0454.500 datasheet, PDF - EEWORLD Datasheet

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0454.500: DescriptionRESISTOR, POTENTIOMETER, WIRE WOUND, 1 TURN(S), 6 W, 250 ohm - 25000 ohm; CategoryCircuit protection Circuit protection; File Size94KB，1 Pages; ManufacturerLittelfuse; Websitehttp://www.littelfuse.com; Environmental Compliance; Related ProductsFound8parts with similar functions to 0454.500

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0454.500 Overview

RESISTOR, POTENTIOMETER, WIRE WOUND, 1 TURN(S), 6 W, 250 ohm - 25000 ohm

0454.500 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Littelfuse
Reach Compliance Code	not_compliant
ECCN code	EAR99
Is Samacsys	N
Other features	RATED BREAKING CAPACITY AT 32 VDC: 300 A, PRE ARCING TIME: OPEN WITHIN 0.02 SEC AT 800% RATED CURRENT
Fusing characteristics	FAST
body width	2.69 mm
body height	6.1 mm
Body length or diameter	2.69 mm
Circuit protection type	ELECTRIC FUSE
Fuse size	NANO
JESD-609 code	e4
Joule integral nominal
Installation features	SURFACE MOUNT
Maximum operating temperature	125 °C
Minimum operating temperature	-55 °C
physical size	2.69mm x 2.69mm x 6.1mm
Rated breaking capacity	50 A
Rated current	0.5 A
Rated voltage	125 V
Rated voltage (AC)	125 V
Rated voltage (DC)	125 V
Guideline	CSA; PSE; UL
surface mount	YES
Terminal surface	Silver (Ag)
Terminal shape	WRAPAROUND
Disconnect time or delay	0.02 s
Base Number Matches	1

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Surface Mount Fuses

Subminiature Surface Mount

NANO

2® Slo-Blo

Fuse 452/454 Series

The NANO

Slo-Blo fuse has enhanced inrush withstand characteristics

over the NANO

Fast-Acting fuse. The unique time delay feature of this

fuse design helps solve the problem of nuisance “opening” by accommo-

dating inrush currents that normally cause a fast-acting fuse to open.

ELECTRICAL CHARACTERISTICS:

% of Ampere

Rating

100%

200%

300%

800%

Opening

Time

4 hours,

Minimum

1 second,

Min.;

60 seconds,

Max.

0.2 seconds,

Min.;

3 seconds,

Max.

0.02 seconds,

Min.;

0.1 seconds,

Max.

6.86

(.270")

3.15

(.124")

2.95

(.116")

1.45

(.057")

6.10

(.240")

AGENCY APPROVALS:

Recognized under the Components Program

of Underwriters Laboratories and Certified by CSA.

AGENCY FILE NUMBERS:

UL E10480, CSA LR 29862.

INTERRUPTING RATINGS:

50 amperes at 125 VAC/VDC

2.69

(.106")

2.69

(.106")

ENVIRONMENTAL SPECIFICATIONS:

Operating Temperature:

–55°C to 125°C.

Shock:

MIL-STD-202, Method 213, Test Condition I (100 G’s peak for

6 milliseconds).

Vibration:

MIL-STD-202, Method 201 (10–55 Hz, .06 in. total excursion).

Salt Spray:

MIL-STD-202, Method 101, Test Condition B (48 hrs.).

Insulation Resistance (After Opening):

MIL-STD-202,

Method 302, Test Condition A, (10,000 ohms minimum).

1.96

(.077")

Recommended pad layout

Resistance to Soldering Heat:

MIL-STD-202, Method 210,

(3 sec. at 260°C).

Average Time Current Curves

3/8A

1/2A

3/4A

1 1/2A

2 1/2A

3 1/2A

Thermal Shock:

MIL-STD-202, Method 107,

Test Condition B (–65 to 125°C).

Moisture Resistance:

MIL-STD-202, Method 106,

High Humidity (90-98 RH), Heat (65°C).

1000

PHYSICAL SPECIFICATIONS:

Materials:

Body: Ceramic

Terminations: Tin-Lead Alloy or Silver

Plated Brass Caps.

100

Soldering Parameters:

TIME IN SECONDS

Wave Solder — 260°C, 3 seconds maximum

Reflow Solder — 230°C, 30 seconds maximum

Solderability:

MIL-STD-202, Method 208.

PACKAGING SPECIFICATIONS:

12mm Tape and Reel per EIA-

RS481-1 (IEC 286, part 3); 1,000 per reel; 5,000 piece reel also available.

Marking:

The 452/454 series Slo-Blo fuse marking includes the letter

“T” to designate time delay characteristics.

PATENTED

ORDERING INFORMATION:

Tin-Lead

Plated

Catalog #

R452.375

R452.500

R452.750

R452

001.

R452

01.5

R452

002.

R452

02.5

R452

003.

R452

03.5

R452

004.

R452

005.

Silver

Plated Ampere

Catalog # Rating

0454.375

3/8

0454.500

1/2

0454.750

3/4

0454

001.

0454

01.5

0454

002.

0454

02.5

0454

003.

0454

03.5

0454

004.

0454

005.

Nominal

Resistance Melting I

Cold Ohms

Sec.

1.20

0.101

0.700

0.240

0.360

0.904

0.225

1.98

0.0930

3.65

0.0625

8.20

0.0450

15.0

0.0340

20.16

0.0224

26.53

0.0186

34.40

0.0136

53.72

Voltage

Rating

125

0.1

0.01

0.1

100

CURRENT IN AMPERES

1000

Refer to pg. 271 for SMF Omni-Blok

Holder, Series

154

000T.

269

w w w. l i t t e l f u s e . c o m

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0454.500 Similar Products

Part Number	Manufacturer	Description
0454.500MRSN	Littelfuse	Electric Fuse
0454.500MR	Littelfuse	熔断 I²t：0.24 标称电压降：- 分断能力：50A 额定电流：500mA 产品：贴片式保险丝标称冷电阻：700mΩ 保险丝类型：慢速熔断 FUSE 125V SB NANO2 RoHS .500A
0454.500NRSN	Littelfuse	Electric Fuse
0454.500NRL	Littelfuse	Electric Fuse, Time Lag Blow, 0.5A, 125VAC, 125VDC, 50A (IR), Surface Mount, HALOGEN FREE AND ROHS COMPLIANT
0454.500MRL	Littelfuse	Electric Fuse, Time Lag Blow, 0.5A, 125VAC, 125VDC, 50A (IR), Surface Mount, HALOGEN FREE AND ROHS COMPLIANT
0454.500NR	Littelfuse	surface mount fuses 125v .500a nano2 slo-blo
0157.500.DRT	Littelfuse	Electric Fuse, Time Lag Blow, 0.5A, 125VAC, 125VDC, 50A (IR), Surface Mount, ROHS COMPLIANT
0157.500DRT	Littelfuse	Electric Fuse, Time Lag Blow, 0.5A, 125VAC, 125VDC, 50A (IR), Surface Mount, HALOGEN FREE AND ROHS COMPLIANT

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