4941310610 [LITTELFUSE]
Analog Circuit,;
LITTELFUSE 
W I C K M A N N
RESETTABLE FUSES
Specifications
Strap Type, 15V/24V/30V
LP / No. 494
Packaging
Approvals (pending)
600: Bulk (500 pcs.
)
, Standard Version
UL Recognized
610: Bulk (500 pcs.
), “S” Version
Features
Materials
Low voltage overcurrent protection
Low resistance and power dissipation
Designed for battery pack protection
Low profile form factor - per industry standard
Self-resetting; no need for replacement after
fault condition
Body:
Polyester Tape
Nickel
Terminals:
Operating Temperature
-40ºC to +85ºC (consider de-rating)
Humidity Aging Test
85ºC/85% RH/7 days
WebLinks
Stock Conditions
+10ºC to +60ºC
relative humidity ≤ 75% yearly average,
without dew, maximum value for 30 days-95%
Dimensions (mm)
Data Sheet
A
www.wickmann.com/products/494.pdf
Standard
Version
FaxBack Document # 610
Marking
C
Logo, Part Code
D
D
Unit Weight (approx.)
0.2g
A
0,5 x 4,0
“S” Version
C
D
D
Type
A (max) B (max) C (max) D (max) E (max)
494-700mA 22.1
494-1.00A 20.1
494-1.20A 22.1
494-1.75A 20.1
494-1.80A 26.0
494-1.90A 20.4
494-2.00A 20.4
494-2.60A 26.0
494-3.00A 31.8
494-3.10A 26.0
494-3.40A 26.0
494-3.50A 31.8
494-4.20A 32.4
5.4
5.4
1.2
1.0
1.0
1.0
1.0
1.1
1.1
1.0
1.1
1.0
1.0
1.1
1.1
7.5
5.5
7.5
5.5
5.5
7.6
7.6
7.0
8.9
7.0
5.0
8.9
7.5
4.1
4.1
4.1
4.1
4.1
5.4
5.4
5.4
5.4
5.4
5.4
5.4
5.4
5.4
5.4
5.4
11.0
11.0
12.0
13.7
15.9
16.1
13.5
13.6
Preliminary Data
Permissible continuous operating current is ≤ 100% at ambient temperature of 25ºC (77ºF).
Rated
Amp
Voltage Fault Current Trip Current Trip Time @
Power
Resistance
Approvals
Current IC Code
Rating
I
ITrip
(A)
5 x IC
Dissipation PV
Initial RI
Initial RI
maFxa.u(ltA)
max. (s)
max. (W)
min. (Ω)
max. (Ω)
700mA
1.00A
1.20A
1.75A
1.80A
1.90A
2.00A
2.60A
3.00A
3.10A
3.40A
3.50A
4.20A
0700
1100
1120
1175
1180
1190
1200
1260
1300
1310
1340
1350
1420
15V
24V
15V
15V
24V
24V
30V
24V
24V
24V
24V
24V
24V
100
100
100
100
100
100
100
100
100
100
100
100
100
1.45
2.50
2.70
3.80
3.80
4.20
4.40
5.20
6.30
6.00
6.80
6.30
7.60
5.0
7.0
5.0
5.0
2.9
3.0
1.50
1.50
1.50
1.60
2.00
2.00
1.90
2.40
2.20
2.50
2.70
2.50
2.90
0.100
0.070
0.085
0.050
0.040
0.030
0.030
0.025
0.015
0.018
0.016
0.017
0.012
0.200
0.130
0.160
0.090
0.068
0.057
0.060
0.042
0.031
0.030
0.027
0.031
0.024
P
P
P
P
P
P
P
P
P
P
P
P
P
4.0
5.0
4.0
5.0
5.0
1
3.0
1
6.0
I :
C
Max. continuous current at which the fuse will not trip at 25º C ambient.
I :
Max. fault current the fuse can withstand at 25º C ambient without being damaged; fuse may withstand higher currents at lower voltages - test accordingly.
Min. current at which the fuse will trip at 25º C ambient, max. fuse temperature in tripped state is 125º C.
Power dissipated by the fuse when tripped at 25º C ambient.
Min. and max. resistance at 25º C prior to tripping.
Pending
F
I
:
Trip
P
R :
:
V
I
P:
1:
Device testet at 20 A
Order
Information
Qty.
Order-
Number
Series
494
Amp Code
Packaging
WebSite: www.wickmann.com
FaxBack: +1 (404) 699-6176
• Europe Tel: +49 (2302) 662-107 • Americas Tel: +1 (404) 699-7820
E-mail: sales@wickmann.com E-mail: service@wickmannusa.com
• Asia Tel: +852 26 14-1108
E-mail: sales@wickmann.com.hk
001005
RESETTABLE FUSES
W I C K M A N N
LP / No. 494
A B C D EFG H IJKL M
IFault (Amp)
Type
Curve
Type
Curve
494-700mA
494-1.00A
494-1.20A
494-1.75A
494-1.80A
494-1.90A
494-2.00A
A
B
C
D
E
F
G
494-2.60A
494-3.00A
494-3.10A
494-3.40A
494-3.50A
494-4.20A
H
I
J
K
L
M
WebSite: www.wickmann.com
FaxBack: +1 (404) 699-6176
• Europe Tel: +49 (2302) 662-107 • Americas Tel: +1 (404) 699-7820
E-mail: sales@wickmann.com
• Asia Tel: +852 26 14-1108
E-mail: service@wickmannusa.com E-mail: sales@wickmann.com.hk
001005
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