Telefuse

PL
IA
N
T
Features
M
■ For use in telecommunication circuit applications requiring low current protection
*R
oH
S
CO
with high surge tolerance
■ Overcurrent protection to Telcordia GR-1089-CORE Issue 4 (B1250T only) & UL 1950/60950
■ Bourns® TISP® products are recommended for the overvoltage section of the circuit
■ Agency recognition:
File: E198545
■ RoHS compliant*
Telefuse™ SMD Power Cross Protection Fuse
Electrical Characteristics
Model
Number
B0500T
B1250T
B2000T
Ampere
Rating
(A)
0.500
1.25
2.0
Typical
Cold
Resistance
(Ohms)
0.350
0.075
0.056
Voltage
Rating
(VRMS)
600
600
600
Temperature Range
................................-55 °C to +125 °C
Environmental Characteristics
Thermal Shock ................ MIL-STD-202,
Method 107, Test Condition B
(-65 °C to +125 °C)
Shock.......... MIL-STD-202, Method 213,
Test Condition I
(100 Gs peak for 6 milliseconds)
Vibration ...... MIL-STD-202, Method 201
(10-55 Hz, 0.06 inch total excursion)
Salt Spray ... MIL-STD-202, Method 101,
Test Condition B (48 hrs.)
Insulation Resistance ...... MIL-STD-202,
Method 302, Test Condition A
(after opening)
10,000 ohms minimum
Solderability
................. MIL-STD-202, Method 208
Resistance to Solder Heat
................ MIL-STD-202, Method 210,
Test Condition J (235 °C, 30 sec.)
Physical Characteristics
Body Material
..... Ceramic with tin plated brass caps
Solder ........ RoHS 6 Compliant lead free
RoHS reflow compatible;
reference 240 °C, 30 sec. max.
Soldering Process Window
IR Reflow 240 °C for 30 seconds max.
(Not recommended for
Wave solder direct immersion)
Packaging ..........2,000 pcs. per 13 ” reel
Volt-drop
@ 100 % In
(Volts)
Max.
0.23
0.18
0.16
Melting I2T
< 10 msec
(A2 sec.)
2
14
33
Maximum
Power
Dissipation
(W)
0.20
0.40
0.52
Melting I2T
@ 10 In
(A2 sec.)
2.3
17
37
Lightning Surge Withstand Capabilities
Max. Rise/
Min. Decay
(µs)
10/1000
10/360
2/10
10/360
2/10
8/20
Minimum
Peak
Voltage
(V)
1000
1000
2500
1000
5000
5000
Repetitions
Each
Total
Polarity
50
25
50
25
20
10
10
5
2
1
2
1
Minimum Withstand Peak Current
(A)
B0500T
25
30
120
30
120
75
B1250T
100
125
500
125
500
300
B2000T
120
150
600
150
600
350
Test Methods per GR-1089/TIA-968-A (FCC Pt. 68)
AC Power Fault Tests
GR-1089
1st Level
Test
1
2
3
4
6
7
8
9
Voltage
(VRMS)
50
100
200,
400,
600
1000
600
440
600
1000
Fuse Characteristics
Short
Circuit
Current
(A)
Applications
Duration
0.33
0.17
1
1
1
60
15 min.
15 min.
1 sec.
B0500T
B1250T
B2000T
Parts pass all 1st Level tests
1
0.5
2.2
3
5
60
1
5
5
5
1 sec.
30 sec.
2 sec.
1.1 sec.
0.4 sec.
Will open
Will open
Will open
Parts pass all 1st
Level tests
AC Current Limiting Protector Tests/Fusing Coordination Tests
Voltage
(Vac)
600
600
600
600
600
600
600
600
600
600
600
Current
(A)
2.2
2.6
3.0
3.75
5
7
10
12.5
20
25
30
Duration
Up to 15 Min.
Maximum Time for Fuse to Open (Seconds)
B0500T
B1250T
B2000T
1.0
900
Will not open
0.8
50
2000
0.5
10
100
0.3
5
10
0.2
2
3
0.08
1
2
0.04
0.5
0.7
0.01
0.2
0.3
0.005
0.07
0.1
0.004
0.04
0.07
0.003
0.02
0.05
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
Telefuse™ SMD Power Cross Protection Fuse
Product Dimensions
Time/Current Characteristic Curve
2.03 ± .102
(.080 ± .004)
1000
Current (Amperes)
100
9.65 ± .254
(.38 ± .01)
10
B2000T
B1250T
1
3.05 ± .127
(.120 ± .005)
0.1
0.01
0.01
3.05 ± .127
(.120 ± .005)
B0500T
0.1
1
10
100
1000
10000
Time (Seconds)
Recommended Pad Layout
Solder Profile
3.81
(.15)
TP
tp
MAX. RAMP-UP RATE = 3 °C/sec.
MAX. RAMP-DOWN RATE = 6 °C/sec.
Tc -5 °C
4.06
(.16)
TL
Temperature
t
5.08
(.20)
TS MAX.
DIMENSIONS:
TS MIN.
MM
(INCHES)
ts
PREHEAT
25 °C
t 25 °C TO PEAK
Time
IR Reflow Profile
Reflow Parameter
Value
Minimum Preheat Temperature (TSMIN)
Maximum Preheat Temperature (TSMAX)
130 °C
170 °C
Preheat Time
60-180 seconds
TSMAX to TL Ramp-Up Rate
Time above Temperature TL (tL)
3 °C / second max.
200 °C for 60-120 seconds
Peak Temperature (TP)
240 °C max.
Time within 5 °C of Peak TP
20-30 seconds
Ramp-Down Rate
6 °C / second. max.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
Telefuse™ SMD Power Cross Protection Fuse
Packaging Specifications
2.2
(.087)
20
(.787)
13.0
DIA.
(.512)
1.55 ± 0.05
(.061 ± .002)
DIA.
55.0
(2.165)
DIA.
21.0
(.827)
DIA.
0.40 ± 0.05
(.016 ± .002)
2.0 ± 0.1
(.079 ± .004)
1.75 ± 0.1
(.069 ± .004)
1.6 ± 0.05
(.063 ± .002)
DIA.
CL
7.50 ± 0.1
(.295 ± .004)
10.0 ± 0.1
(.394 ± .004)
R
3 ° REF.
3.50 ± 0.1
(.138 ± .004)
330
(12.992)
DIA.
4.0 ± 0.1
(.157 ± .004)
0.3
(.012)
TYP.
16.0 ± 0.3
(.630 ± .012)
8.0 ± 0.1
(.315 ± .004)
3.50 ± 0.1
(.138 ± .004)
1.6
(.063)
DIMENSIONS:
MM
(INCHES)
REV. 10/14
“Telefuse” is a trademark of Bourns, Inc.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
CL