Technical Data 10530 Effective April 2016
Product description
• High breaking capacity and I²t
• High surge withstand: 20 cycles of 1.2/50 μs -
8/20 μs, 20 kV/10 kA surge
• UL248-14 compliant
• Ceramic tube, nickel plated brass end cap
• 6.3 mm x 32 mm form factor
• Ferrule and axial lead options
• Halogen free, lead free, RoHS compliant
Applications
Primary circuit protection:
• Lighting controls
• Surge protectors
• LED and general lighting
Agency information
• cURus Recognition file number: E19180, Vol 7
Ordering
• Use ordering number (see page 3 for details)
Packaging suffixes
• BK (100 parts per carton)
• TR (500 parts per roll)
MDH-R
6.3 mm x 32 mm Ferrule and axial lead, high breaking
capacity, high I2t ceramic tube fuses
Pb
HALOGEN
HF
FREE
2
Technical Data 10530
Effective April 2016
MDH-R
6.3 mm x 32 mm Ferrule and axial lead, high breaking
capacity, high I2t ceramic tube fuses
www.eaton.com/elx
Electrical characteristics
ln
1.0In
min
hour
2.0In
max
minute
21A 4 2
Product specifications
Part number1
Ferrule Axial lead
Current
rating (A )
Voltage
rating
(VAC)
Voltage
rating
(VDC)
Interrupting rating at
rated AC voltage (50
Hz)
(AAC)
Interrupting rating at
rated DC voltage
(ADC)
Typical D C
cold
resistance
(Ω)
Typical
pre-arcing1
I2t (A2s)
MDH- 21-R MDH-V- 21-R 21 600 150 200 200 0.0024 5100
Dimensions–mm
Drawing not to scale
1. Typical I2t value measured at 10 times of rated current under DC. 2. Part Number Definition: MDH-x-xx-R
x = Use “V” code for axial lead, leave blank for ferrule
xx= Ampere rating
-R suffix = RoHS compliant
3
Technical Data 10530
Effective April 2016
MDH-R
6.3 mm x 32 mm Ferrule and axial lead, high breaking
capacity, high I2t ceramic tube fuses
www.eaton.com/elx
Temperature derating curve
Environmental data
Operating temperature: - 55 °C to 125 °C (with derating)
Thermal shock: MIL-STD- 202G, Method 107G, test condition B (5 cycles - 65 °C to 125 °C)
Vibration: MIL-STD- 202G, Method 201A
Mechanical shock: MIL-STD- 202, Method 213, test condition A
Humidity: MIL-STD- 202G, Method 103B, Test condition A
High surge withstand: 20 cycles of 1.2/50 μs - 8/20 μs, 20 kV/10 kA surge
Ordering codes
The ordering code is the part number replacing the “.” with a “-” plus adding the packaging suffix as shown.
Packaging suffixes
• BK (100 parts per carton)
• TR (500 parts per roll)
Ordering codes
Part number BK option TR option
Ferrule
MDH-21-R MDH-21-R-BK
Axial lead
MDH-V-21-R MDH-V-21-RBK MDH-V-21-RTR
Ambient Temperature (
C)
Factor of rated current (%)
Eaton
Electronics Division
1000 Eaton Boulevard
Cleveland, OH 44122
United States
www.eaton.com/elx
© 2016 Eaton
All Rights Reserved
Printed in USA
Publication No. 10530 BU-MC16038
April 2016
Eaton is a registered trademark.
All other trademarks are property
of their respective owners.
MDH-R
6.3 mm x 32 mm Ferrule and axial lead, high breaking
capacity, high I2t ceramic tube fuses
Technical Data 10530
Effective April 2016
Life Support Policy: Eaton does not authorize the use of any of its products for use in life support devices or systems without the express written
approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly
used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.
Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton also
reserves the right to change or update, without notice, any technical information contained in this bulletin.
Through-hole wave solder profile (axial lead only)
Reflow soldering not recommended
Reference EN 61760-1:2006
Profile Feature Standard SnPb Solder Lead (Pb) Free Solder
Preheat • Temperature min. (Tsmin) 100°C 100°C
• Temperature typ. (Tstyp) 120°C 120°C
• Temperature max. (Tsmax) 130°C 130°C
• Time (Tsmin to Tsmax) (ts)70 seconds 70 seconds
D preheat to max Temperature 150°C max. 150°C max.
Peak temperature (TP)* 235°C – 260°C 250°C – 260°C
Time at peak temperature (tp)10 seconds max
5 seconds max each wave
10 seconds max
5 seconds max each wave
Ramp-down rate ~ 2 K/s min
~3.5 K/s typ
~5 K/s max
~ 2 K/s min
~3.5 K/s typ
~5 K/s max
Time 25°C to 25°C 4 minutes 4 minutes
Manual solder
350°C, 4-5 seconds. (by soldering iron), generally manual, hand soldering is not recommended.
Temperature
Time
T
smin
Tsmax
Tstyp
Tp
tp
First Wave Second Wave
Preheat area Cool down area