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B0500T Datasheet Preview

B0500T Datasheet

SMD Power Cross Protection Fuse

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B0500T pdf
Features
For use in telecommunication circuit applications requiring low current protection
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*
TelefuseSMD Power Cross Protection Fuse
Electrical Characteristics
Model
Number
Ampere
Rating
(A)
B0500T
B1250T
B2000T
0.500
1.25
2.0
Voltage
Rating
(VRMS)
600
600
600
Typical
Cold
Resistance
(ohms)
0.350
0.075
0.056
Volt-drop
@ 100 % In
(Volts)
max.
0.23
0.18
0.16
Melting I2T
< 10 msec
(A2 sec.)
2
14
33
Melting I2T
@ 10 In
(A2 sec.)
2.3
17
37
Maximum
Power
Dissipation
(W)
0.20
0.40
0.52
Temperature Range ........-55 ºC to +125 ºC
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 ............................................Lead free
Solder Reflow Temperature
..............................240 °C for 30 seconds
260 °C for 3 seconds
Packaging ..............2,000 pcs. per 13 ” reel
Lightning Surge Withstand Capabilities
Max. Rise/
Min. Decay
(µs)
10/1000
10/360
2/10
10/360
2/10
8/20
Repetitions
Minimum
Peak
Total Each Polarity Voltage (V)
50 25
1000
50 25
1000
20 10
2500
10 5
1000
2 1 5000
2 1 5000
Test Methods per GR-1089/TIA-968-A (FCC Pt. 68)
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
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
Short
Circuit
Current
(A)
0.33
0.17
1
1
0.5
2.2
3
5
Applications Duration
1 15 min.
1 15 min.
60 1 sec.
60 1 sec.
1 30 sec.
5 2 sec.
5 1.1 sec.
5 0.4 sec.
Fuse Characteristics
B0500T B1250T B2000T
Parts pass all 1st Level tests
Will open
Will open
Will open
AC Current Limiting Protector Tests/Fusing Coordination Tests
Asia-Pacific:
TEL +886- (0)2 25624117
FAX +886- (0)2 25624116
Europe:
TEL +41-41 7685555
FAX +41-41 7685510
The Americas:
TEL +1-951 781-5500
FAX +1-951 781-5700
www.bourns.com
Voltage
(Vac)
600
600
600
600
600
600
600
600
600
600
600
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify device performance in their specific applications.
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
1.0
0.8
0.5
0.3
0.2
0.08
0.04
0.01
0.005
0.004
0.003
B1250T
900
50
10
5
2
1
0.5
0.2
0.07
0.04
0.02
B2000T
Will not open
2000
100
10
3
2
0.7
0.3
0.1
0.07
0.05
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BOURNS
BOURNS

B0500T Datasheet Preview

B0500T Datasheet

SMD Power Cross Protection Fuse

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B0500T pdf
TelefuseSMD Power Cross Protection Fuse
Time/Current Characteristic Curve
1000
100
10
1
0.1
0.01
0.01
0.1
1 10 100
Time (Seconds)
B2000T
B1250T
B0500T
1000
10000
Product Dimensions
2.03 ± .102
(.080 ± .004)
9.65 ± .254
(.38 ± .01)
3.05 ± .127
(.120 ± .005)
3.05 ± .127
(.120 ± .005)
Recommended Pad Layout
3.81
(.15)
4.06
(.16)
5.08
(.20)
DIMENSIONS:
MM
(INCHES)
Solder Profile - 260 °C for 3 Seconds
300
PREHEAT
267
233
200
167
133
100
67
33
0
0 48
95
ZONE 2
ZONE 3
REFLOW
COOL
143 190
238 286
333 381
429
SECONDS
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.


Part Number B0500T
Description SMD Power Cross Protection Fuse
Maker BOURNS
Total Page 3 Pages
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