Littelfuse 856 Series - Manual

© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Enclosed Fuseholders > Panel/Circuit Board Mounted
Cartridge Fuse Holders
WITHOUT
SILICON RING (IP 40)
WITH
SILICON RING (IP 54)
Product Characteristics 850
850/851 Series 852/853 Series
Compatible Fuse 5×20mm
Materials
Holder: Black
Duroplastic
Cap: Black
Thermoplastic
Both UL94VO
Holder/Cap:
Black Thermoplastic,
UL 94V0
Sealing Ring:Silicon (Cap 856)
Metal Parts: Copper alloy, corrosion protected
Terminals: Solderable tinned
Electrical Data (23ºC)
Rated Voltage: 250V
Rated Current:
10 A
Rated Current:
6.3A (VDE)
12A (UL)
Rated Power:
3.2 W (VDE)
Rated Power:
2W (VDE)
Mounting
12.7mm diameter
D-hole or 13mm round
hole Admissible torque
on plastic hex nut is
1.2Nm
(2) Solder pins
0.5mm×1.1mm
Terminals
Solderable only,
4mm×0.5mm (850)
Solderable or 2.8mm
quick connect - fits
0.5mm tab (851)
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)
Operating Temp. -40ºC to +85ºC (consider de-rating)
Climatic Test -40ºC/+85ºC/21 days (IEC 60068-2-1...3)
Stock Conditions
+10ºC to +60ºC relative humidity ≤ 75% yearly
average, without dew, maximum value for 30
days - 95%
Vibration Resistance
24 cycles at 15 min. each (IEC 60068-2-6)
10 - 60Hz at 0.75mm amplitude
60 - 500Hz at 10g acceleration
Contact Resistance ≤ 5mΩ
Impulse Voltage 4 kV, 50Hz, 1 min., dry
Insulation Resistance > 10 3 MΩ (500VDC, 1 min.)
Solderability
235ºC, 2 sec. (Wave) 350ºC, 1 sec. (Soldering
Iron)
Soldering Heat
Resistance
350ºC, 5 sec. (IEC 60068-2-20)
Minimum Cross
Section
Conductor - 1.5mm 2
Conducting path -
0.2mm 2
Marking Part No., 250V, Approvals
Unit Weight
4.1g (850) / 1.8g (855)
4.2g (851) / 1.9g (856)
3.2g (852) / 1.8g (855)
3.2g (853) / 1.9g (856)
VDE
850 series Holder
851 series Holder
852 series Holder
853 series Holder
855 Cap
856 Cap
PANEL MOUNTED (IP40)
CIRCUIT BOARD MOUNTED (IP40)
CIRCUIT BOARD MOUNTED (IP54)
PANEL MOUNTED (IP54)
850/851/852/853 Series Enclosed Holders for 5×20mm Fuses
Agency Approval
Agency Agency File Number
136713 UG 136716 UG
E70164 E70164
Additional Information
Datasheet Samples Resources
Datasheet Samples Resources
Datasheet Samples Resources
Datasheet Samples Resources
850 Series 850 Series 850 Series
851 Series 851 Series 851 Series
852 Series 852 Series 852 Series
853 Series 853 Series 853 Series