NFR2500004708JA500 Vishay, NFR2500004708JA500 Datasheet - Page 7

• Manufacturer Part Number: NFR2500004708JA500
• Description: RESISTOR, FUSIBLE, 4R7
• Manufacturer: Vishay
• Series: NFR25r

Specifications of NFR2500004708JA500

• Resistance: 4.7ohm
• Resistance Tolerance: ± 5%
• Power Rating: 330mW
• Voltage Rating: 250V
• Resistor Element Material: Metal Film
• No. Of Pins: 2
• Body: RoHS Compliant
• Temperature Coefficient: ± 100ppm/°C
• Resistor Case Style: Axial
• Rohs Compliant: Yes

NFR25/25H
Vishay BCcomponents
Application Information
TESTS AND REQUIREMENTS
Essentially all tests are carried out in accordance with the
schedule
LCT/UCT/56 (rated temperature range: Lower Category
Temperature, Upper Category Temperature; damp heat,
long
requirements specified by EIA and EIAJ.
The tests are carried out in accordance with IEC publication
60068-2, “Recommended basic climatic and mechanical
robustness testing procedure for electronic components” and
under standard atmospheric conditions according to
“IEC 60068-1”, subclause 5.3.
www.vishay.com
132
NFR25 Temperature rise (ΔT) at the lead end (soldering point)
as a function of dissipated power at various lead lengths after
(K)
∆ T
Minimum distance from resistor body to PCB = 1 mm
term, 56 days).
50
40
30
20
10
0
0
of
“IEC
0.2
publication
mounting
The
testing
NFR25H Temperature rise (ΔT) at the lead end (soldering point) as a
function of dissipated power at various lead lengths after mounting
For technical questions, contact: [e-mail]
0.4
60115-1”,
(K)
∆ T
Minimum distance from resistor body to PCB = 1 mm
Fusible, Non-Flammable Resistors
50
40
30
20
10
also
0
15 mm
5 mm
10 mm
0
P (W)
covers
category
0.6
the
0.2
In the Test Procedures and Requirements table the tests and
requirements are listed with reference to the relevant clauses
of “IEC publications 60115-1 and 60068-2”; a short
description of the test procedure is also given. In some
instances deviations from the IEC recommendations were
necessary for our method of specifying. For inflammability
requirements reference is made to “IEC 60115-1” and to
“EN 140000, appendix D”.
All soldering tests are performed with mildly activated flux.
0.4
(K)
∆ T
100
80
60
40
20
0
0
NFR25H Hot-spot temperature rise (ΔT) as a
P (W)
5 mm
10 mm
15 mm
function of dissipated power.
0.6
0.2
Document Number: 28737
0.4
Revision: 21-Feb-08
P (W)
0.6