Axial Lead & Cartridge Fuses
3AB > Very Fast-Acting > 322/332 Series
322/332 Series Lead-free 3AB, Very Fast-acting Fuse
RoHS
Pb
PS
E
Description
The 322 and 332 Series are 3AB Very Fast-Acting fuses for
protection of Silicon Controlled Rectifiers and similar solidstate devices.
Features
• In accordance with UL
Standard 248-14
• RoHS compliant and
Lead-free
• Available in cartridge
format only
Applications
Agency Approvals
Agency
Agency File Number
Ampere
Range
Series
E10480
12A - 30A
322
E10480
1A - 10A
332
NBK080306-JP1021A
NBK080306-JP1021B
1-5A
6-10A
N/A
1A - 30A
Used as supplementary protection in appliance or
utilization equipment to provide individual protection for
components or internal circuits.
Electrical Characteristics for Series
PS
E
% of Ampere
Rating
Ampere Rating
Opening Time
332
100%
1 – 30
4 hours, Minimum
250%
1 – 10
.2 second, Maximum
322/332
12 – 30
1 sec.ond, Maximum.
Electrical Characteristic Specifications by Item
Amp Code
Ampere
Rating
(A)
Voltage
Rating
(V)
001.
1
1.25
002.
Agency Approvals
Nominal Cold
Resistance
(Ohms)
Nominal
Melting
2
I t (A2 sec)
PS
E
250
0.0927
0.146
x
1.25
250
0.0804
0.204
x
x
x
2
250
0.0416
0.790
x
x
x
Interrupting
Rating
x
x
003.
3
250
0.0245
2.760
x
x
x
004.
4
250
0.0179
3.360
x
x
x
005.
5
250
006.
6
250
007.
7
250
100A@250Vac
100A@125Vdc
200A@72Vdc
0.0128
6.250
x
x
x
0.0117
8.208
x
x
x
0.0108
10.58
x
x
x
008.
8
250
0.0088
16.45
x
x
x
009.
9
250
0.0077
20.66
x
x
x
010.
10
250
0.0073
24.0
x
012.
12
65
0.0057
38.0
015.
15
65
020.
20
65
025.*
25
030.*
30
x
x
x
x
0.0043
59.0
x
x
0.0034
192.0
x
x
65
0.0029
325.0
x
x
65
0.0023
540.0
x
x
200A@65Vac
1000A@65Vdc
* Ratings from 1A to 10A are available for 332 series
* Ratings from 12A to 30A are available for 322 series, these ratings are RoHS compliant version.
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice. Application testing is strongly recommended.
Revised: 01/03/19
Axial Lead & Cartridge Fuses
3AB > Very Fast-Acting > 322/332 Series
2A
1000
3A
4A
5A
6A
7A
8A
9A
10 A
12 A
15 A
20 A
25 A
30 A
Average Time Current Curves
1A
1.25 A
Temperature Re-rating Curve
TIME IN SECONDS
100
10
Note:
Rerating depicted in this curve is in addition to the industry practice derating of 25%
for continuous operation.
1
0.1
0.01
0.1
1
10
100
CURRENT IN AMPERES
1000
Product Characteristics
Materials
Body: Ceramic
Cap: Nickel–plated brass
Operating
Temperature
–55ºC to +125ºC
Terminal Strength
MIL-STD-202, Method 211, Test
Condition A
Thermal Shock
MIL-STD-202, Method 107, Test Condition
B: (5 cycles -65°C to +125°C)
Solderability
MIL-STD-202 Method 208
Vibration
MIL-STD-202, Method 201
Product Marking
Cap1:
Brand logo, current and voltage
ratings
Cap2:
Series and agency approval
marks
Humidity
MIL-STD-202, Method 103, Test
Condition A: High RH (95%) and Elevated
temperature (40°C) for 240 hours
Salt Spray
MIL- STD-202, Method 101, Test
Condition B
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/03/19
Axial Lead & Cartridge Fuses
3AB > Very Fast-Acting > 322/332 Series
Part Numbering System
Dimensions
Measurements displayed in millimeters (inches)
0322 xxxx M X P
322 000P / 332 000P Series
(cartridge)
Series
Amp Code
Refer to Amp Code column of
Electrical Characteristics Table
6.35±0.3
(.25")
Quantity Code
31.75±1.12
(1.25")
M = 1000
Packaging Code
X = Filler
Lead-free
Packaging
Packaging Option
Packaging Specification
Quantity
Quantity &
Packaging Code
Reel Size
N/A
N/A
1000
100
MX
HX
N/A
N/A
N/A
N/A
100
1000
HX
MX
N/A
N/A
322 Series
Bulk
Bulk
332 Series
Bulk
Bulk
Additional Information
Datasheet
322 Series
Resources
322 Series
Samples
322 Series
Datasheet
332 Series
Resources
332 Series
Samples
332 Series
Accessories
322 & 332 Series
For recommended fuse accessories for this product series, see ‘Recommended Accessories’ section.
Recommended Accessories
Accessory
Type
Holder
Block
Clip
Series
Description
Max
Application
Voltage
Max
Application
Amperage
155100
Twist-Lock In-Line Fuseholder
32
20
342
Traditional Panel Mount Fuseholder
250
20
346
Panel Mount Flip-Top Shock-Safe Fuseholder
250
15
345
Shock-Safe Fuseholder with PC Mount, Solder Mount and Panel Mount options
250
354
Low Profile OMNI-BLOK® Fuse Block
359
High Current Screw Terminal Fuse Block
122
High Current Traditional PC Board Fuse Clip
1000
30
101
Rivet/Eyelet Type Fuse Clip
1000
15
600
20
30
30
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.
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/03/19
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