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© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
Enclosed Fuseholders > Panel Mounted
Cartridge Fuse Holders
Product Characteristics
820 Series 820 20 Series 821 Series 823 Series 824 Series 824 20 Series
Compatible Fuses
5×20mm 5×20mm 5×20mm 5×20mm 5×20mm 5×20mm
Materials
Holder/Cap:
Black
Thermoplastic
UL 94 V-0
Holder/Cap:
White Thermoplastic
PBT, UL94 V-0
Nut:Thermoplastics,
black, UL94 V-0
Holder/Cap:
Thermoplastic
black, UL94 V-0
Holder/Cap:
Black Thermoplastic
UL94 V-0
Holder/Cap:
Thermoplastic
UL 94V-0, black
Holder/Cap:
Thermoplastic
UL94 V-0, white
Metal Parts: Copper alloy, corrosion protected
Clamp Spring:
Spring steel,
non-treated
Terminals:
Solderable, tinned
Electrical Data (23ºC)
Rated Voltage: 250V
Rated Current: 6.3A (VDE) 16A (UL/CSA)
Rated Power:
2.5 W (VDE)
Rated Power:
2.5 W (VDE)
Rated Power:
2.5 W (VDE)
Rated Power:
4 W (VDE)
Rated Power:
4 W
Mounting
12.7mm diameter D-hole or double D-hole
Admissible torque on plastic hex nut is
1.2Nm
12.7mm diameter
D-hole or double D-hole
(panel 1mm - 4.5mm)
Admissible torque on
plastic hex nut is 1.2Nm
Pluggable with
clamping spring into
12.7mm diameter
D-hole (panel thickness
0.75mm-3mm)
Pluggable (panel thickness 1.2 mm-2.5 mm)
Terminals Solderable or 4.8mm quick connect-fits 0.5mm tab
Protection Category IP 40 (IEC 60529) PC2 (IEC 60127-6)
Operating Temperature -25ºC to +70ºC
Climatic Test -25 ºC/+70 ºC/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 - 2000Hz at 10g acceleration
Contact Resistance ≤ 5mΩ
Dielectric Strength > 1.5 kV
Impulse Voltage
4kV, 50Hz, 1min, dry 4kV with 1,2µs/50µs 4kV, 50Hz, 1 min., dry
Insulation Resistance > 10
3
MΩ (500 VDC, 1 min.)
Solderability
235ºC, 3 sec (Wave)
350ºC, 1 sec.
(Solder Iron)
235ºC, 2 sec. (Solder Bath) (IEC 60068-2-20)
350ºC, 3 sec. (Solder Iron) (IEC 60068-2-20)
235ºC, 3 sec. (Wave) 350ºC, 1 sec. (Soldering Iron)
Soldering Heat Resist 260ºC, 5 sec. (IEC 60068-2-20)
Min. Cross Section Conductor - 2.5mm
2
Marking
820, 250 V, Approvals
821, 250V, Approvals 823, 250V, Approvals 824, 250V, Approvals
Unit Weight
4.0g (Holder) / 1.6g
(835) / 2.2g (837)
4.0 g (820) / 1.6 g
(835)
4.0g (821) / 1.6g
(835) / 2.2g (837)
3.8g (Holder) / 1.6g
(835) / 2.2g (837)
3.3g (824) / 1.6g
(835) / 2.2g (837)
3.3g (824) / 1.6g
(835) / 2.2g (837)
Agency Approval
Agency Agency File Number
132225 125183 135536 122096 122098
E 70164 E70164 E70164 E 70164 E70164 E70164
47574 47574 47574 47574 47574 47574
Ordering Information
Ordering Number:
Holders
820 0000 0005 820 0000 0205 821 0000 0005 823 0000 0005 824 0000 0005 824 0000 0205
Ordering Number:
Caps
Flush Mount Type: 835 0000 0005 / 835 0000 0205
Finger Grip Type 837 0000 0005
Packaging Bulk 100 Pcs all items listed above
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and
test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.