© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/29/19
Axial Lead & Cartridge Fuses
5×20 mm > Medium-Acting > 233 Series
Agency Approvals
Features
Applications
Agency Agency File Number Ampere Range
PS
E
Cartridge:
NBK190609-JP1021A
NBK030609-JP1021B
Leaded:
NBK190609-JP1021B
NBK030609-JP1021D
1A – 5A
6A – 10A
1A – 5A
6A – 10A
N/A 1A – 10A
E10480 1A – 10A
SU05001 - 2010 1A – 6.3A
29862 1A – 6A
8A – 10A
Electrical Characteristics for Series
% of Ampere
Rating Ampere
Rating Opening Time
100%
1A – 3.5A 4 hours, Minimum
4A – 7A 1 hour, Minimum
8A – 10A 1 hour, Minimum
135%
1A – 3.5A 15 sec., Min; 1500 sec., Max.
4A – 7A 15 sec., Min; 1500 sec., Max.
8A – 10A 3 sec., Min; 3600 sec., Max.
200%
1A – 3.5A .60 sec., Min; 3 sec., Max.
4A – 7A .60 sec., Min; 3 sec., Max.
8A – 10A 0.4 sec., Min; 2.25 sec., Max.
• Designed to UL/CSA/
ANCE 248-1 and 248-14
Standards
• Available in cartridge
and axial lead format
• RoHS compliant and
lead-free
RoHS
Pb
Amp Code Amp
Rating (A) Voltage
Rating (V) Interrupting
Rating Nominal Cold
Resistance (Ohms) Nominal Melting
I2t (A2 sec)
Agency Approvals
PS
E
0 01. 1125
10 kA @ 125VAC
0.1750 1.97500 x x x x x
1.25 1.25 125 0.1263 3.39000 x x x x x
01. 6 1.6 125 0.0880 6.14000 x x x x x
002. 2 125 0.0684 9.97000 x x x x x
02.5 2.5 125 0.0521 17.04500 x x x x x
003. 3 125 0.0431 26.24000 x x x x x
3.15 3.15 125 0.0380 29.79500 x x x x x
03.5 3.5 125 0.0322 36.27500 x x x x x
004. 4 125 0.0293 51.61000 x x x x x
005. 5 125 0.0217 89.97500 x x x x x
006. 6 125 0.0179 131.45500 x x x x x
06.3 6.3 125 0.0166 151.90500 x x x x x
007. 7 125 0.0137 157.31000 x x x
008. 8 125 0.0084 169.43500 x x x x
010. 10 125 0.0066 274.11500 x x x x
Electrical Characteristic Specifications by Item
5×20mm medium–acting glass body fuse designed to UL
specification.
Used as supplementary protection in appliance or
utilization equipment to provide individual protection for
components or internal circuits.
233 Series, 5×20 mm, Medium-Acting Fuse PS
E
Description
Application testing is strongly recommended.
Additional Information
Datasheet Samples
Resources Accessories
For recommended fuse accessories for this product series,
see ‘Recommended Accessories’ section.
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/29/19
Axial Lead & Cartridge Fuses
5×20 mm > Medium-Acting > 233 Series
Average Time Current CurvesTemperature Re-rating Curve
Soldering Parameters - Wave Soldering
Dwell Time
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
Time (Seconds)
Temperature (°C) - Measured on bottom side of board
Cooling Time
Preheat Time
Wave Parameter Lead-Free Recommendation
Preheat:
(Depends on Flux Activation Temperature) (Typical Industry Recommendation)
Temperature Minimum: 100°C
Temperature Maximum: 150°C
Preheat Time: 60-180 seconds
Solder Pot Temperature: 260°C Maximum
Solder Dwell Time: 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.
Recommended Process Parameters:
1A
1.25A
1.6A
2A
2.5A
3A
3.15A
3.5A
4A
5A
6A
6.3A
7A
8A
10A
100
1000
10000
0.1
0.01
0.001
110100 1000
TIME IN SECONDS
CURRENT IN AMPERES
Note:
Rerating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
Packaging
Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width
233 Series
Bulk N/A 1000 MX N/A
Bulk N/A 1000 MXE N/A
Reel and Tape EIA 296-E 1000 MRET1 T1=53mm (2.087”)
Bulk N/A 1000 MXB N/A
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/29/19
Axial Lead & Cartridge Fuses
5×20 mm > Medium-Acting > 233 Series
Materials Body: Glass
Cap: Nickel–plated brass
Leads: Tin–plated Copper
Terminal Strength MIL-STD-202, Method 211, Test Condition A
Solderability MIL-STD-202 Method 208
Product Marking
Cap 1: Brand logo, current and voltage
rating
Cap 2: Series and agency approval
markings
Packaging Available in Bulk (M=1000 pcs/pkg) or on
Tape/Reel (MRET1=1000 pcs/reel)
Product Characteristics
Operating Temperature –55ºC to +125ºC
Thermal Shock MIL-STD-202, Method 107, Test
Condition B: (5 cycles –65ºC to +125ºC)
Vibration MIL-STD-202, Method 201
Humidity MIL-STD-202, Method 103, Test
Condition A. high RH (95%) and
elevated temp (40ºC) for 240 hours
Salt Spray MIL-STD-202, Method 101, Test
Condition B
Dimensions
0233 000P
20+0.5
5.1+0.6
5.2+0.1
-0.2
5.1+0.6
0233000XEP
0.65±0.05*
40±1.0 21.5±1.0 5.5±0.3
All dimensions in mm
Notes: * Ratings above 6.3A have 0.8±0.05 diameter lead.
Part Numbering System
0233 MX Pxxxx
Lead-free
Packaging Code
Quantity Code
Amp Code
Series
X = Filler
M = 1000
Refer to Amp Code column of
Electrical Characteristics Table
Recommended Accessories
Accessory
Type Series Description Max
Application
Voltage
Max
Application
Amperage
Holder
345_ISF Panel Mount Shock-Safe Fuseholder
250
10
345 Shock-Safe Fuseholder with PC Mount, Solder Mount and Panel Mount options 20
830 PC Mount Shock-Safe Miniature Fuseholder 16
Block
520 Metric OMNI-BLOK® Fuse Block 10
646 PC Mount Miniature Fuse Block 6.3
658 Surface Mount Miniature Fuse Block 10
Clip
520_W PC Mount Miniature Fuse Clip 6.3
111 PC Board Mount Fuse Clip 10
445 PC Board Mount Fuse Clip 10
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.
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each
product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at:
www.littelfuse.com/disclaimer-electronics.
