cooper bussmann

3216TD Series Time-Delay Chip™ Surface Mount Fuses

  
Description
• Time-delay, surface mount fuse
• RoHS compliant, lead-free and halogen-free
• High inrush withstand capability
• Wire-in-Air performance
• Compatible with leaded and lead-free reflow and wave solder
 
Agency Information
• UR(UL) Recognition File number: E19180 
 
Environmental Data
• Operating temperture range: -55°C to 125°C with proper derating
• Vibration: MIL-STD-202, Method 204 Condition D
• Solderability: ANSI/J-STD-002C, Test B
 
Ordering
• Specify packaging and product code 
(i.e., TR/3216TD1-R)
 
Soldering Method
• Wave immersion: 260°C, 10 Sec. max.
• Infrared reflow: 260°C, 30 Sec. max.
• Hand solder: 350°C, 3 Sec. max.

Dimensions - mm (in)
Drawing Not to Scale


Electrical Characteristics
% of Amp Rating Opening Time
100% 4 Hours Minimum
200% 1 Sec. Minimum, 120 Sec. Maximum
300% 0.05 Sec. Minimum, 3 Sec. Maximum
800% 0.002 Sec. Minimum, 0.05 Sec. Maximum


Specifications
Product Code Current
Rating
Amps
Voltage Rating Interrupting
Rating (Amps)*
Typical
Resistance
(Ω)**
Typical
Melt I2t† DC
Typical
Voltage
Drop (mV)‡
Vac Vdc AC DC
3216TD6.3-R 6.3A 32 32 35 35 0.006 10.54 56
3216TD7-R 7A 32 32 35 35 0.006 12.03 64
3216TD8-R 8A 32 32 35 35 0.0055 16.03 65
3216TD10-R 10A 32 32 35 35 0.0045 42.71 72
3216TD12-R 12A 32 32 35 35 0.00425 45.56 79
* AC Interrupting Rating (Measured at rated voltage with a unity power factor); DC Interrupting Rating (Measured at rated voltage, time constant of less than 50 microseconds, battery source)
** DC Cold Resistance (Measured at 10% of rated current)
† Typical Melting I2
t (Measured with a battery bank at rated DC voltage, 10x-rated current at 1 microsecond, not to exceed IR. Above 7A uses 70 micron thickness copper layer test board of IEC 60127-3.
Others uses 35 micron thickness copper layer.
‡ Typical Voltage Drop (Measured at rated current after temperature stabilizes)
Device designed to carry rated current for four hours minimum. An operating current of 80% or less of rated current is recommended, with further derating required at elevated ambient temperatures.
 
Time-Current Curves


Packaging
Packaging Code Prefix Description
TR 2500 fuses on 12mm tape-and-reel on a 180mm reel per EIA-481-A & IEC286-3

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