Axial Lead & Cartridge Fuses
5×20 mm > Medium-Acting > 233 Series
233 Series, 5×20 mm, Medium-Acting Fuse
Description
RoHS
Pb
PS
E
5×20mm medium–acting glass body fuse designed to UL
specification.
Features
• Designed to UL/CSA/
ANCE 248-1 and 248-14
Standards
• Available in cartridge
and axial lead format
Applications
Ampere Range
• RoHS compliant and
lead-free
Agency Approvals
Agency
Agency File Number
PS
E
Cartridge:
NBK190609-JP1021A
NBK030609-JP1021B
Leaded:
NBK190609-JP1021B
NBK030609-JP1021D
N/A
E10480
SU05001 - 2010
29862
Used as supplementary protection in appliance or
utilization equipment to provide individual protection for
components or internal circuits.
Electrical Characteristics for Series
% of Ampere
Rating
100%
Ampere
Rating
1A – 3.5A
4A – 7A
8A – 10A
1A – 3.5A
135%
4A – 7A
8A – 10A
1A – 3.5A
200%
4A – 7A
8A – 10A
Opening Time
4 hours, Minimum
1 hour, Minimum
1 hour, Minimum
15 sec., Min; 1500 sec., Max.
15 sec., Min; 1500 sec., Max.
3 sec., Min; 3600 sec., Max.
.60 sec., Min; 3 sec., Max.
.60 sec., Min; 3 sec., Max.
0.4 sec., Min; 2.25 sec., Max.
1A – 5A
6A – 10A
1A – 5A
6A – 10A
1A – 10A
1A – 10A
1A – 6.5A
1A – 6A
8A – 10A
Additional Information
Datasheet
Resources
Samples
Accessories
For recommended fuse accessories for this product series,
see ‘Recommended
Accessories’
section.
Electrical Characteristic Specifications by Item
Amp Code
001.
1.25
01.6
002.
02.5
003.
3.15
03.5
004.
005.
006.
06.3
007.
008.
010.
Amp
Rating (A)
1
1.25
1.6
2
2.5
3
3.15
3.5
4
5
6
6.3
7
8
10
Voltage
Rating (V)
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
Interrupting
Rating
Nominal Cold
Resistance (Ohms)
0.1750
0.1263
0.0880
0.0684
0.0521
0.0431
0.0380
0.0322
0.0293
0.0217
0.0179
0.0166
0.0137
0.0084
0.0066
Nominal Melting
I
2
t (A
2
sec)
1.97500
3.39000
6.14000
9.97000
17
.04500
26.24000
29.79500
36.27500
51.61000
89.97500
131.45500
151.90500
157
.31000
169.43500
274.11500
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Agency Approvals
PS
E
10 kA @ 125VAC
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
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
© 2016 Littelfuse, Inc.
Application testing is strongly recommended. Specifications are subject to change without notice.
Revised: 06/06/16
Axial Lead & Cartridge Fuses
5×20 mm > Medium-Acting > 233 Series
Temperature Re-rating Curve
Average Time Current Curves
1A
1.25A
1.6A
2A
2.5A
3A
3.15A
3.5A
4A
5A
6A
6.3A
7A
8A
10A
10000
1000
100
TIME IN SECONDS
0.1
Note:
Rerating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
0.01
0.001
1
10
100
CURRENT IN AMPERES
1000
Soldering Parameters - Wave Soldering
300
Recommended Process Parameters:
Wave Parameter
Preheat:
(Depends on Flux Activation Temperature)
(Typical Industry Recommendation)
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
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:
Solder Iron Temperature: 350°C +/- 5°C
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
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/06/16
Axial Lead & Cartridge Fuses
5×20 mm > Medium-Acting > 233 Series
Product Characteristics
Materials
Terminal Strength
Solderability
Product Marking
Body: Glass
Cap: Nickel–plated brass
Leads: Tin–plated Copper
MIL-STD-202, Method 211, Test Condition A
MIL-STD-202 Method 208
Cap 1: Brand logo, current and voltage
rating
Cap 2: Series and agency approval
markings
Available in Bulk (M=1000 pcs/pkg) or on
Tape/Reel (MRET1=1000 pcs/reel)
Operating Temperature
Thermal Shock
Vibration
Humidity
Salt Spray
–55ºC to +125ºC
MIL
-STD-202, Method 107 Test
,
Condition B: (5 cycles –65ºC to +125ºC)
MIL
-STD-202, Method 201
MIL
-STD-202, Method 103, Test
Condition A. high RH (95%) and
elevated temp (40ºC) for 240 hours
MIL
-STD-202, Method 101, Test
Condition B
Packaging
Dimensions
0233
000P
20+0.5
5.2+0.1
-0.2
5.1+0.6
5.1+0.6
Part Numbering System
0233 xxxx M X P
Series
Amp Code
Refer to Amp Code column of
Electrical Characteristics Table
5.5±0.3
0233000XEP
40±1.0
21.5±1.0
Quantity Code
M = 1000
0.65±0.05*
All dimensions in mm
Notes: * Ratings above 6.3A have
0.8±0.05
diameter lead.
Packaging Code
X = Filler
Lead-free
Packaging
Packaging Option
233 Series
Bulk
Bulk
Reel and Tape
Bulk
Packaging Specification
N/A
N/A
EIA 296-E
N/A
Quantity
1000
1000
1000
1000
Quantity & Packaging Code
MX
MXE
MRET1
MXB
Taping Width
N/A
N/A
T1=53mm (2.087”)
N/A
Recommended Accessories
Accessory
Type
Series
345_ISF
Description
Panel Mount Shock-Safe Fuseholder
Shock-Safe Fuseholder with PC Mount, Solder Mount and Panel Mount options
PC Mount Shock-Safe Miniature Fuseholder
Metric OMNI-BLOK® Fuse Block
PC Mount Miniature Fuse Block
Surface Mount Miniature Fuse Block
PC Mount Miniature Fuse Clip
PC Board Mount Fuse Clip
PC Board Mount Fuse Clip
Max
Application
Voltage
Max
Application
Amperage
10
20
16
10
Holder
345
830
520
Block
646
658
520_W
250
6.3
10
6.3
10
10
Clip
111
445
Notes:
1. Do not use in applications above rating.
2. Please refer to fuseholder data sheet for specific re-rating information.
3. Please contact factory for applications greater than the max voltage and amperage shown.
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/06/16
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