NMA....SI
Vishay Draloric
Metal Film Resistors, Fusible Type
FEATURES
•
Fusible resistor for constant current designed for
overload protection
•
High positive temperature coefficient (+ 4500/± 500 ppm/K)
•
Flame retardent coating
•
Defined switch-off behavior
•
Lead (Pb)-free solder contacts
•
Pure tin plating provides compatibility with lead (Pb)-free
and lead containing soldering processes
•
Compatible with “Restriction of the use of Hazardous
Substances” (RoHS) directive 2002/95/EC (issue 2004)
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
POWER RATING
P
70 °C
W
0.35
TEMPERATURE
COEFFICIENT
ppm/K
+ 4500/± 500
TOLERANCE
%
5, 10, 20
10, 20
RESISTANCE
RANGE
Ω
1R0 - 47R
R10 - R91
E-SERIES
12 - 24
12
NMA0207SI
• Further values on request
• Marking: additional 5
th
band, black
• Coating: beige
TECHNICAL SPECIFICATIONS
PARAMETER
Rated Dissipation at 70 °C
Minimum Overload to Fuse
Time to Fuse (max)
Thermal Resistance (max)
Max. Applicable Voltage after Fusing
Category Temperature Range
Failure Rate
Weight
UNIT
W
W
s
K/W
V
°C
10
-9
/h
g
NMA0207SI
0.35
1.5
30
≤
220
85
- 55/+ 155
< 30
0.22
RATED POWER IN
%
120
100
80
60
40
20
0
- 55
- 25
0
25
50
70
75
100
125
155
175
200
DERATING
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AMBIENT TEMP. IN °C
For technical questions, contact: ff3dresistors@vishay.com
Document Number: 20123
Revision: 18-Jan-07
NMA....SI
Metal Film Resistors, Fusible Type
Vishay Draloric
PART NUMBER AND PRODUCT DESCRIPTION
PART NUMBER: NMA0207B01508J2200
N
M
A
0
2
0
7
B
0
1
5
0
8
J
2
2
0
0
MODEL/SIZE
NMA0207
SPECIAL
CHARACTER
B
= SI Fusible
TCR/MATERIAL
0
= standard
VALUE
3 digit value
1 digit multiplier
Multiplier:
7
= *10
-3
8
= *10
-2
9
= *10
-1
TOLERANCE
J
=±5%
K
= ± 10 %
M
= ± 20 %
PACKAGING
22
= A2
25
= A5
D5
= R5
SPECIAL
Up to 2 digits
00
= standard
PRODUCT DESCRIPTION: NMA0207 SI 1R5 5 % A2
NMA0207
MODEL/SIZE
NMA0207
SI
SPECIAL CHARACTER
FUSIBLE
1R5
RESISTANCE VALUE
1R5
= 1.5
Ω
47R
= 47
Ω
5%
TOLERANCE
±
5
%
±
10
%
±
20
%
A2
PACKAGING
1)
A2
A5
R5
1)
Please refer to table PACKAGING
DIMENSIONS
DIMENSIONS
[in millimeters]
6 mm
L
1
L
MODEL
D
d
D
NMA0207SI
1)
L
L
1 max
8.1
B
d
e
7.5
2.3
- 0.3
6.1
- 0.5
53 ± 1
1)
0.6
e
B
Also available in 26 mm taping
• Taping in acc. with IEC60286-1
• D and L measured in acc. with IEC60294
• d according to IEC60301
TIME TO FUSE (SECS)
60
50
40
30
20
10
7
5
4
3
2
1
1
2
3
4
5 6 7 8 9 10
20
30
40
50
60
NMA 0207SI
FUSING PERFORMANCE
Document Number: 20123
Revision: 18-Jan-07
For technical questions, contact: ff3dresistors@vishay.com
www.vishay.com
127
NMA....SI
Vishay Draloric
Metal Film Resistors, Fusible Type
PERFORMANCE
TEST
Endurance at 70 °C
IEC 60115-1 4.25.1
Endurance at UCT
IEC 60115-1 4.25.3
Thermal Shock
IEC 60115-1 4.19, IEC 60068-2-14
Damp Heat Steady State
IEC 60115-1 4.24, IEC 60068-2-3
Resistance to Soldering Heat
IEC 60115-1 4.18, IEC 60068-2-20
CONDITIONS OF TEST
1000 hours at 70 °C 1.5 hours “ON”, 0.5 hours “OFF”
1000 hours at 155 °C without load
Rapid change between upper and lower category temperature
56 days at 40 °C and 93 % relative humidity
10 seconds at 260 °C solder bath temperature
REQUIREMENTS
≤
±1%
≤
±1%
≤
± 0.25 %
≤
± 1.5 %
≤
± 0.25 %
PACKAGING
REEL
MODEL
PIECES/REEL
NMA0207SI
5000
CODE
R5
MIN. ORDER QTY
PACKAGING UNITS
1
PIECES/BOX
5000
2000
BOX
CODE
A5
A2
MIN. ORDER QTY
PACKAGING UNITS
1
2
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128
For technical questions, contact: ff3dresistors@vishay.com
Document Number: 20123
Revision: 18-Jan-07
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
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