Technical Data 4405 Effective August 2018
Supersedes October 2017
Product features
A compact 3 mm x 8.4 mm fuse provides a space
saving alternative to conventional fuse solutions
with high interrupting rating for primary and
secondary circuit protection up to 250 Vac/dc and
250 mA
• Meets electrical perfomance specifications for
intrinsically safe (EN60079-11) applications
• Fast-acting, high interrupting rating of
4000 A at 250 Vac/dc
• Ceramic tube, silver plated brass end cap
construction
• Optional axial leads (tinned copper axial
leads construction)
• RoHS compliant
Agency information
• cURus Recognition file number: E19180, Guide
JDYX2/JDYX8
Applications
• Hazardous environments
• Petrochemical processing and refining equipment
• Pulp and paper processing equipment
• Intrinsically safe network barriers
Packaging
• Specify part number and packaging suffix.
• Package suffixes:
Ferrule
• -TR (500 fuses on tape and reel)
• -TR1 (1000 fuses on tape and reel)
Axial leaded
• TR1 (axial leaded version, 1500 fuses on tape
and reel)
Ordering
• Specify part number and packaging suffix
(e.g., C308F-V-160mA-TR1)
C308F
3 mm x 8.4 mm fast-acting, ceramic tube fuses for
hazardous applications
2
Technical Data 4405
Effective August 2018
C308F
3 mm x 8.4 mm fast-acting, ceramic tube fuses for hazardous applications
www.eaton.com/electronics
Product specifications
Part number Voltage
rating
Vac/dc
Color
coding
Interrupting
rating @ 250
Vac/dc (A)*
Typical DC
cold resistance
(Ω)**
Typical
melting
I²T***
Agency
Information
cURus
Ferrule Axial lead
C308F40mA C308F-V-40mA
250
Grey
4000
14.2 0.00006 X
C308F50mA C308F-V-50mA Red 9.40 0.00010 X
C308F63mA C308F-V-63mA Pink 8.80 0.00012 Pending
C308F80mA C308F-V-80mA Green 5.10 0.00018 X
C308F100mA C308F-V-100mA Yellow 2.87 0.00087 X
C308F125mA C308F-V-125mA Orange 2.20 0.00134 X
C308F160mA C308F-V-160mA Violet 2.05 0.00166 X
C308F200mA C308F-V-200mA Brown 1.01 0.00237 X
C308F250mA C308F-V-250mA Black 0.71 0.00530 X
* AC Interrupting Rating (4000 A, PF = 0.4); DC Interrupting Rating measured at rated voltage, time constant 4 microseconds, battery source.
** DC Cold Resistance (Measured at ≤10% of rated current).
*** Typical I2t measured at 10In.
Electrical characteristics
Amp Rating % of Amp Rating Opening Time
40 mA ~ 250 mA
110% 4 hours, min
300% 10 seconds, max
1000% 0.002 seconds, max
Environmental data
• Operating temperature: -55 °C to +125 °C (with derating)
• Thermal Shock: MIL-STD-202G, Method 107G (Test Condition 5 cycles -55 °C to 125 °C)
• Resistance to Solder Heat: MIL-STD-202G Method 210F
• Vibration: MIL-STD-202G, Method 201A (10 Hz to 55 Hz) Condition A, “-V” axial leaded version IEC60068-2-6
• Solderability: J-STD-002C, Test Method C1, “-V” axial leaded version IEC60127-2/A3.3
• Component Life Reliability: +125 °C, 500 hours
Dimensions–mm
3
Technical Data 4405
Effective August 2018
C308F
3 mm x 8.4 mm fast-acting, ceramic tube fuses for hazardous applications
www.eaton.com/electronics
Average time-current curves
Time (s)
Current (A)
Temperature derating curve
Percentage of rating
Current (A)
Temperature (°C)
4
Technical Data 4405
Effective August 2018
C308F
3 mm x 8.4 mm fast-acting, ceramic tube fuses for hazardous applications
www.eaton.com/electronics
Temperature
t
tP
ts
TC -5°C
Time 25°C to Peak Time
25
°C
Tsmin
Tsmax
TL
TP
Preheat
A
Max. Ramp Up Rate = 3°C/s
Max. Ramp Down Rate = 6°C/s
Surface mounting soldering parameters (Ferrule)
• Reflow solder: JEDEC J-STD-020 Tc = 250°C. Tp = 30s
• Wave and manual solder is not recommended
Reference JDEC J-STD-020
Profile Feature Standard SnPb Solder Lead (Pb) Free Solder
Preheat and Soak • Temperature min. (Tsmin)100 °C 150 °C
• Temperature max. (Tsmax)150 °C 200 °C
• Time (Tsmin to Tsmax) (ts)60-120 Seconds 60-120 Seconds
Average ramp up rate Tsmax to Tp3 °C/ Second Max. 3 °C/ Second Max.
Liquidous temperature (Tl)
Time at liquidous (tL)
183 °C
60-150 Seconds
217 °C
60-150 Seconds
Peak package body temperature (TP)* Table 1 Table 2
Time (tp)** within 5 °C of the specified classification temperature (Tc)20 Seconds** 30 Seconds**
Average ramp-down rate (Tp to Tsmax)6 °C/ Second Max. 6 °C/ Second Max.
Time 25 °C to Peak Temperature 6 Minutes Max. 8 Minutes Max.
* Tolerance for peak profile temperature (Tp) is defined as a supplier minimum and a user maximum.
** Tolerance for time at peak profile temperature (tp) is defined as a supplier minimum and a user maximum.
Table 1 - Standard SnPb Solder (Tc)
Package
Thickness
Volume
mm3
<350
Volume
mm3
≥350
<2.5mm) 235°C 220°C
≥2.5mm 220°C 220°C
Table 2 - Lead (Pb) Free Solder (Tc)
Package
Thickness
Volume
mm3
<350
Volume
mm3
350 - 2000
Volume
mm3
>2000
<1.6mm 260°C 260°C 260°C
1.6 – 2.5mm 260°C 250°C 245°C
>2.5mm 250°C 245°C 245°C
Eaton
Electronics Division
1000 Eaton Boulevard
Cleveland, OH 44122
United States
www.eaton.com/electronics
© 2018 Eaton
All Rights Reserved
Printed in USA
Publication No. 4405 — BU-MC15048
August 2018
Eaton is a registered trademark.
All other trademarks are property
of their respective owners.
Technical Data 4405
Effective August 2018
C308F
3 mm x 8.4 mm fast-acting, ceramic tube fuses for hazardous applications
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)
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
