LITTELFUSE 851

MINIA
TURE FUSEHOLDERS
INIATURE
Panel Mount, Shocksafe
5x20mm Fuses
Specifications
11,9 -0,15
SW14
∅15 + 0,3
M12,7x1,5
max. 7
9,4
Holder / No. 850
0,5
4 +0,2
16,2
13 -0,3
12 -0,1
Standard
IEC 60127-6
UL 512
CSA C22.2. No.39
Approvals
VDE Report
SEMKO
UL Recognized
CSA
SEV
33 +0,4
12,7 -0,1
VDE
Mounting
Panel
alternatives
12.7mm diameter D-hole or 13mm round hole
Admissible torque on plastic hex nut is 1.2Nm
Terminals
Cap / No. 855
1
Solderable only, 4mm x 0.5mm (850)
Solderable or 2.8mm quick connect - fits 0.5mm
tab (851)
6
∅8,3 + 0,3
1,8
Protection Class & Category
IP 40 (with Cap 855 acc. to IEC 60529)
IP 54 (with Cap 856 acc. to IEC 60529)
PC2 (IEC 60127-6)
Without silicon ring (IP 40)
Materials
14,2
Holder:
Black Duroplastic
UL 94V0
Cap:
Black Thermoplastic
UL94VO
Sealing Ring: Silicon (Cap 856)
Metal Parts: Copper alloy, corrosion protected
Terminals: Solderable, tinned
20,8 + 0,5
Holder / No. 851
34,6 +0,4
11,9 -0,15
Electrical Data (23ºC)
Rated Voltage:
Rated Current:
Rated Power :
0,5
4 +0,2
12,7 -0,1
Vibration Resistance
24 cycles at 15 min. each (IEC 60068-2-6)
10 - 60Hz at 0.75mm amplitude
60 - 500Hz at 10g acceleration
6
∅8,3 + 0,3
1,8
1
Contact Resistance
≤ 5mΩ
Impulse Voltage
4 kV, 50 Hz, 1 min., dry
14,2
20,8 + 0,5
Order Information
Insulation Resistance
> 10 3 MΩ (500 VDC, 1 min.)
Solderability
235ºC, 2 sec. (Wave)
350ºC, 1 sec. (Soldering Iron)
Soldering Heat Resistance
Packaging
350ºC, 5 sec. (IEC 60068-2-20)
Bulk (100 pcs.)
Minimum Cross Section
No. 850 0000 100
No. 855 0000 100
No. 851 0000 100
No. 856 0000 100
Note: 1.00 means the number one with two decimal places. 1,000 means the number one thousand.
050805
9,4
+10ºC to +60ºC
relative humidity ≤ 75% yearly average,
without dew, maximum value for 30 days - 95%
Cap / No. 856
Holder, IP 40
Cap, without Ring, IP 40
Holder, IP 54
Cap, with Ring, IP 54
-40ºC to +85ºC (consider de-rating)
Stock Conditions
Panel
alternatives
With silicon ring (IP 54)
(from front side only)
Operating TTemperature
emperature 4W (SEV)
-40ºC/+85ºC/21 days (IEC 60068-2-1...3)
16,2
13 -0,3
12 -0,1
250V
10A
3.2W (VDE/SEMKO)
Climatic TTest
est
2,8
38,4 +0,5
Order Numbers
SW14
∅15 + 0,3
M12,7x1,5
max. 7
Conductor - 1.5mm 2
Marking
Part No., 250V, Approvals
Unit Weight
4.1g (850) / 1.8g (855)
4.2g (851) / 1.9g (856)
Specifications are subject to change without notice
In our continuing strategy to deliver unparalleled circuit protection solutions,
technical expertise and application leadership, we proudly introduce the
WICKMANN Group and its products to the Littelfuse portfolio.
WebSite www.littelfuse.com