Littelfuse 856 Series User Manual

Cartridge fuse holders, Enclosed fuseholders > panel/circuit board mounted

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

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

Conducting path -

0.2mm

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

Additional Information

Datasheet

Datasheet

Datasheet

Datasheet