Time-Delay Chip
™
Fuses
3216TD Series
Drawing Not to Scale
HF
FREE
Dimensions - mm (in)
HALOGEN
Pb
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
•
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.
Recommended Pad Layout - mm (in)
% of Amp Rating
100%
200%
300%
800%
Electrical Characteristics
Opening Time
4 Hours Minimum
1 Sec. Minimum, 120 Sec. Maximum
0.05 Sec. Minimum, 3 Sec. Maximum
0.002 Sec. Minimum, 0.05 Sec. Maximum
Specifications
Product Code
3216TD6.3-R
3216TD7-R
3216TD8-R
3216TD10-R
3216TD12-R
Current
Rating
Amps
6.3
7
8
10
12
Voltage Rating
Vac
Vdc
32
32
32
32
32
32
32
32
32
32
Interrupting
Rating (Amps)*
AC
DC
35
35
35
35
35
35
35
35
35
35
Typical
Resistance
(Ω)**
0.006
0.006
0.0055
0.0045
0.00425
Typical
Melt I
2
t†
DC
10.54
12.03
16.03
42.71
45.56
Typical
Voltage
Drop (mV)‡
56
64
65
72
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 I
2
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.
0310
BU-SB10214
Page 1 of 2
Data Sheet 4321
Time-Current Curves
Time In Seconds
Current In Amps
Packaging
Packaging Code Prefix
TR
Description
2500 fuses on 12mm tape-and-reel on a 180mm reel per EIA-481-A & IEC286-3
The only controlled copy of this Data Sheet is the electronic read-only version located on the Cooper Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is
intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Cooper Bussmann reserves the right, without notice, to change
design or construction of any products and to discontinue or limit distribution of any products. Cooper Bussmann also reserves the right to change or update, without notice, any technical information con-
tained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.
Life Support Policy: Cooper Bussmann 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 sup-
port 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.
© 2010 Cooper Bussmann
St. Louis, MO 63178
www.cooperbussmann.com
0310
BU-SB10214
Page 2 of 2
Data Sheet 4321
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