Axial Lead & Cartridge Fuses
2AG > Time Lag > 209 Series
209 Series
Lead-Free 2AG, Slo-Blo
®
(Time-Lag) Fuse
PS
E
Description
Littelfuse 209 Series (2AG) 350V, Time-Lag (Slo-Blo
®
) Fuses
are available in cartridge form or with axial leads. This
series provides the same performance characteristics as
its 3AG counterpart, while occupying one-third the space.
Sleeved fuses are available.
Features
with Underwriter’s
Laboratories Standard
UL 248-14
Agency Approvals
and axial lead form and
Agency
Agency File Number
Ampere Range
with various forming
dimensions
Lead-free
E10480
PS
E
250mA-7A
Applications
NBK210405-E10480G/H
NBK210405-E10480C/D
NBK210405-E10480E/F
1A-7A
Electrical Characteristics for Series
% of Ampere
Rating
100%
135%
200%
Opening Time
4 Hours,
Min.
1 Hour,
Max.
3 Sec.
Min.
; 20 Sec.
Max.
250mA-7A
Electrical Characteristic Specifications by Item
Amp
Code
.250
.375
.500
.600
.750
.800
001.
1.25
01.5
002
2.25
02.5
003
03.5
004
005
006
007
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/209.html for current information.
Ampere
Rating
(A)
0.25
0.375
0.5
0.6
0.75
0.8
1
1.25
1.5
2
2.25
2.5
3
3.5
4
5
6
7
Voltage
Rating
(V)
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
Nominal Cold
Interrupting
Resistance
Rating
(Ohms)
2.410
1.170
0.688
0.477
0.340
0.304
0.210
0.1460
100A @
350Vac
0.1077
0.0689
0.0567
0.0502
0.0383
0.0312
0.0258
0.0186
0.0141
0.0116
Nominal
Melting
I
2
t (A
2
sec)
0.216
0.580
1.160
1.750
2.950
3.450
5.640
9.80
15.0
30.0
39.0
50.0
77
.0
110
148
267
380
464
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
PS
E
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
209 Series
251
Revised: June 25, 2010
209 Series
Agency Approvals
Introduction to & Cartridge Fuses
Axial Lead Circuit Protection
Transientology
2AG > Time Lag > 209 Series
Temperature Rerating Curve
Average Time Current Curves
Soldering Parameters - Wave Soldering
300
Temperature
(°C) - Measured on bottom side of board
280
260
240
220
200
180
160
140
120
100
80
60
40
20
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
10
20
30
40
50
60
70
80
90
0
0
Recommended Process Parameters:
Wave Parameter
Preheat:
(Depends on Flux Activation Temperature)
Lead-Free Recommendation
Temperature Minimum:
Temperature Maximum:
Preheat Time:
Solder Pot Temperature:
Solder Dwell Time:
100
°
C
150
°
C
60-180 seconds
260
°
C Maximum
2-5 seconds
Recommended Hand-Solder Parameters:
Heating Time: 5 seconds max.
Note: These devices are not recommended for IR or
Convection Reflow process.
Time
(Seconds)
Preheat
Time
Dwell
Time
Cooling
Time
209 Series
252
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/209.html for current information.
Axial Lead & Cartridge Fuses
2AG > Time Lag > 209 Series
Product Characteristics
Materials
Terminal Strength
Solderability
Product Marking
Body : Glass
Cap : Nickel–plated brass
Leads: Tin–plated Copper
Test Condition A
2003-01 Annex A
Cap1 : Brand logo, current and voltage
ratings
Cap2 : Series and agency approval marks
Operating
Temperature:
Thermal
Shock:
Vibration
Humidity
for 240 hours
Salt Spray
–55ºC to 125ºC.
Dimensions
Part Numbering System
209
000P
Series
4.7 (.184")
4.5
(.177")
14.48
(.57")
209
000EP
Series
.635
(.025")
Series
0209 xxxx M X E P
Current Rating Code
Refer to Amp Code column of
Electrical Characteristics Table
14.48
(.57")
38.1
(1.50") TYP.
Quantity Code
M = 1000
Packaging Code
X = Loose Pack
Option Codes
Blank = Cartridge Type Fuse
E = Axial Leaded Fuse
Lead-free
Packaging
209 Series
Bulk
Bulk
N/A
N/A
1000
1000
1500
MX
MXE
N/A
N/A
T1=52mm (2.062”)
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/209.html for current information.
253
209 Series
209 Series
Packaging Option
Packaging Specification
Quantity
Quantity & Packaging
Code
Taping Width
Introduction to Circuit Protection
Transientology
254
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
