Axial Lead & Cartridge Fuses
5×20 mm > Time-Lag > 235 Series
235 Series, 5×20 mm, Fast-Acting Fuse
RoHS Pb
PS
E
Description
5×20mm fast-acting glass body cartridge fuse designed to
UL specification.
Features
• Designed to UL/CSA/
ANCE 248 Standard
• RoHS compliant and
lead-free
• Available in cartridge and
axial lead format
Applications
Agency Approvals
Agency
PS
E
Agency File Number
Ampere Range
Cartridge:
NBK030609-JP1021A
NBK190609-JP1021A
NBK030609-JP1021B
Leaded:
NBK030609-JP1021C
NBK190609-JP1021B
NBK030609-JP1021D
1A - 3.5A
4A -5A
6A -7A
SU05001 – 3007
SU05001 – 2002
SU05001 – 2003
0.100A – 0.400A
0.500A – 3A
4A – 6A
E10480
1A - 3.5A
4A -5A
6A -7A
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
Ampere Rating
100%
135%
Opening Time
4 hours, Minimum
0.100A – 7A
200%
1 hour, Maximum
5 seconds, Maximum
0.100A - 7A
29862
0.100A - 7A
N/A
0.100A – 7A
Additional Information
Datasheet
Resources
Samples
Accessories
For recommended fuse accessories for this product series,
see ‘Recommended Accessories’ section.
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: BA.08/26/20
Axial Lead & Cartridge Fuses
5×20 mm > Time-Lag > 235 Series
Electrical Characteristic Specifications by Item
Amp Code
Amp Rating
(A)
Voltage
Rating
(V)
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
Agency Approvals
Nominal Melting
I2t (A2 sec)
PS
E
.100
0.1
250
8.4000
0.00127
x
x
x
-
x
.125
0.125
250
5.7500
0.00273
x
x
x
-
x
.200
0.2
250
3.1500
0.00867
x
x
x
-
x
.250
0.25
250
2.2500
0.01660
x
x
x
-
x
.300
0.3
250
1.6000
0.03215
x
x
x
-
x
.400
0.4
250
1.075
0.05845
x
x
x
-
x
.500
0.5
250
0.4265
0.06915
x
x
x
-
x
.600
0.6
250
0.3195
0.11200
x
x
x
-
x
.700
0.7
250
0.2625
0.15600
x
x
x
-
x
.800
0.8
250
0.1920
0.25300
x
x
x
-
x
001.
1
250
0.1530
0.46750
x
x
x
x
x
1.25
1.25
250
0.1055
1.08500
x
x
x
x
x
01.6
1.6
250
0.0758
2.02500
x
x
x
x
x
002.
2
250
0.0603
2.64500
x
x
x
x
x
02.5
2.5
250
0.0437
5.44500
x
x
x
x
x
003.
3
250
0.0347
8.39500
x
x
x
x
x
03.5
3.5
250
0.0331
17.14000
x
x
-
x
-
004.
4
125
0.0246
17.14000
x
x
x
x
x
005.
5
125
0.0184
27.41000
x
x
x
x
x
006.
6
125
0.0148
47.32500
x
x
x
x
x
007.
7
125
0.0157
64.81500
x
x
-
x
-
100A @ 250VAC
10kA @ 125VAC
10kA @ 125VAC
Average Time Current Curves
0.100A
0.125A
Temperature Re-rating Curve
0.200A
0.250A
0.300A
0.400A
0.500A
0.600A
0.700A
0.800A
1A
1.25A
1.6A
2A
2.5A
3A
4A
5A
6A
35A @ 250VAC
10kA @ 125VAC
10000
TIME IN SECONDS
1000
100
10
1
0.1
Note:
Rerating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
0.01
0.1
1
10
100
1000
CURRENT IN AMPERES
Please contact Littelfuse for details on T-C curve for 7A rating
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: BA.08/26/20
Axial Lead & Cartridge Fuses
5×20 mm > Time-Lag > 235 Series
Soldering Parameters - Wave Soldering
Recommended Process Parameters:
Wave Parameter
280
260
Preheat:
240
Lead-Free Recommendation
(Depends on Flux Activation Temperature)
220
(Typical Industry Recommendation)
200
Temperature Minimum:
100°C
180
Temperature Maximum:
150°C
Preheat Time:
60-180 seconds
160
140
120
Solder Pot Temperature:
260°C Maximum
100
Solder Dwell Time:
2-5 seconds
80
60
40
240
230
220
210
200
190
180
170
160
150
140
130
120
110
90
100
80
70
60
50
40
30
0
0
20
20
10
Temperature (°C) - Measured on bottom side of board
300
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)
Cooling Time
Preheat Time
Dwell Time
Product Characteristics
Materials
Body: Glass
Cap: Nickel–plated brass
Leads: Tin–plated Copper
Operating Temperature
Terminal Strength
MIL-STD-202, Method 211. Test Condition A
Vibration
Solderability
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)
Product Marking
Packaging
Thermal Shock
Humidity
Salt Spray
–55ºC to +125ºC
MIL-STD-202, Method 107, Test Condition B: (5
cycles –65OC + 125OC)
MIL-STD-202, Method 201
MIL-STD-202, Method 103, Test Condition A
high RH (95%) and elevated temperature (40O
C) for 240 hours
MIL-STD-202, Method 101, Test Condition B
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: BA.08/26/20
Axial Lead & Cartridge Fuses
5×20 mm > Time-Lag > 235 Series
Dimensions
Part Numbering System
0235 xxxx M X E P
20+0.5
5.2+0.1
-0.2
0235000P
5.1+0.6
Series
Amp Code
5.1+0.6
Refer to Amp Code column of
Electrical Characteristics Table
21.5±1.0
40±1.0
0235.100 XEP
to
0235.400 XEP
Quantity Code
5.6±0.4
M = 1000
Packaging Code
X = Filler
0.65±0.05
Option Code
E = Axial Leaded
21.5±1.0
40±1.0
0235.500 XEP
to
0235007.XEP
Lead-free
5.5±0.3
See Notes*
All dimensions in mm
Notes:
* 0.1A-6A have 0.65±0.05 diameter lead.
7A have 0.8±0.05 diameter lead.
Packaging
Packaging Option
Packaging Specification
Bulk
N/A
Bulk
N/A
Reel and Tape
EIA 296-E
Quantity &
Packaging Code
Taping Width
1000
MX
N/A
1000
MXE
N/A
1000
MRET1
T1=53mm (2.087”)
Quantity
235 Series
Recommended Accessories
Accessory
Type
Series
345_ISF
Holder
Block
Max Application
Voltage
Max Application
Amperage
Panel Mount Shock-Safe Fuseholder
20
345
Shock-Safe Fuseholder with PC Mount, Solder Mount and Panel Mount options
20
830
PC Mount Shock-Safe Miniature Fuseholder
16
520
Metric OMNI-BLOK® Fuse Block
646
PC Mount Miniature Fuse Block
658
10
250
6.3
Surface Mount Miniature Fuse Block
10
PC Mount Miniature Fuse Clip
6.3
111
PC Board Mount Fuse Clip
10
445
PC Board Mount Fuse Clip
10
520_W
Clip
Description
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.
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: BA.08/26/20
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