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© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
Axial Lead & Cartridge Fuses
5×20 mm > Audio & Medical > 285 Series
Materials
Body : Ceramic
Cap : Gold / Rhodium-plated brass
Terminal
Strength
MIL- STD-202, Method 211,
Test condition A
Product Marking
Cap 1: Brand logo, current and voltage rating
Cap 2: Agency approval markings
Product Characteristics
Operating
Temperature
–55ºC to +125ºC
Thermal Shock
MIL- STD-202, Method 107,
Test Condition B: (5 cycles –65ºC to +125ºC)
Vibration MIL- STD-202, Method 201
Humidity
MIL- STD-202, Method 103,
Test condition A: High RH (95%) and
elevated temp. (40ºC) for 240 hours
Salt Spray
MIL- STD-202, Method 101,
Test condition B
Dimensions
Packaging
Packaging Option Packaging Specification Quantity
Quantity &
Packaging Code
Taping Width
285 Series
Bulk N/A 100 HX N/A
Bulk N/A 1000 MX N/A
Part Numbering System
0285.125 XP/XRP
to
0285020 XP/XRP
20
+
0.5
5.1
+
0.6
5.2
+
0.1
-0.2
5.1
+
0.6
All dimensions in mm
0285 xxxx M X (R) P
Lead Free
Option Codes
Package Code
Quantity Code
Current Rating Code
Series
Blank = Gold-plated caps
R = Rhodium-plated caps
X = Filler
M = 1000
H = 100
Refer to Amp Code column of
Electrical Characteristics Table
Recommended Accessories
Accessory
Type
Series Description
Max
Application
Voltage
Max
Application
Amperage
Holder
345_ISF Panel Mount Shock-Safe Fuseholder
250
10
345 Shock-Safe Fuseholder with PC Mount, Solder Mount and Panel Mount options 20
830 PC Mount Shock-Safe Miniature Fuseholder 16
Block
520 Metric OMNI-BLOK® Fuse Block 10
646 PC Mount Miniature Fuse Block 6.3
658 Surface Mount Miniature Fuse Block 10
Clip
520_W PC Mount Miniature Fuse Clip 6.3
111 PC Board Mount Fuse Clip 10
445 PC Board Mount Fuse Clip 10
Notes:
1. Do not use in applications above rating.
2. Please refer to fuseholder data sheet for specific re-rating information.
3. Please contact factory for applications greater than the max voltage and amperage shown.
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.