Datasheet - Littelfuse

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 3AB Very Fast-Acting Fuse for protection of Silicon
Controlled Rectifiers and similar solid-state 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
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[email protected]
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
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[email protected]
* 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.
© 2015 Littelfuse, Inc.
Application testing is strongly recommended. Specifications are subject to change without notice.
Revised: 07/17/15
Axial Lead & Cartridge Fuses
3AB > Very Fast-Acting > 322/332 Series
2A
3A
4A
5A
6A
7A
8A
10A
12A
15A
20A
25A
30A
1/4A
3/8A
1/2A
3/4A
1A
Average Time Current Curves
1/8A
Temperature Re-rating Curve
1000
TIME IN SECONDS
100
10
Note:
Rerating depicted in this curve is in addition to the standard 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
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 07/17/15
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
322 Series
Bulk
Bulk
332 Series
Bulk
Bulk
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
Additional Information
Datasheet
322 Series
Resources
322 Series
Samples
322 Series
Datasheet
332 Series
Resources
332 Series
Samples
332 Series
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 07/17/15