ULW4-10RJA1 Welwyn Components, ULW4-10RJA1 Datasheet

RESISTOR, FUSIBLE, 4W, 10R

ULW4-10RJA1

Manufacturer Part Number
ULW4-10RJA1
Description
RESISTOR, FUSIBLE, 4W, 10R
Manufacturer
Welwyn Components
Series
ULWr
Datasheet

Specifications of ULW4-10RJA1

Resistance
10ohm
Resistance Tolerance
± 5%
Power Rating
4W
Voltage Rating
500V
Resistor Element Material
Wirewound
Resistor Case Style
Axial Leaded
Temperature Coefficient
± 200ppm/°C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ULW4-10RJA1
Manufacturer:
TI
Quantity:
440
UL Recognised
Wirewound Resistors
ULW Series
·
·
·
·
·
·
* UL file number E234469.
Electrical Data
Note - no limiting element voltage applies; maximum continuous voltage is √(P.R)
Physical Data
Construction
A high purity ceramic rod is assembled with interference fit end caps to which are welded the terminations. The surge withstanding resistive element
is wound on the rod and welded to the caps. Flameproof fusible cement coating is applied prior to marking with indelible ink. The components are
then leadformed if required and packed.
Marking
ULW2 & ULW3 resistors are marked with five colour bands. The first four indicate value and tolerance in conformance with IEC62. The fifth yellow
band denotes defined fusibility. ULW4 resistors are legend marked with type, value and tolerance.
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
© Welwyn Components Limited
Telephone: +44 (0)1670 822181 · Facsimile: +44 (0)1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
Power rating at 25°C
5 second overload rating at 25ºC
Inrush / surge performance
Resistance range
TCR
Isolation voltage
Resistance tolerance
UL recognised standard values
Thermal impedance
Ambient temperature range
ULW2
ULW3
ULW4
Type
UL1412 recognised fusible resistor *
Failsafe mains fusing at 120 / 240Vrms
Inrush and surge withstanding
UL94-V0 flameproof coating
SMD leadform option available
RoHS compliant
L Max
14.5
9.0
13
D Max
3.6
5.2
5.6
Dimensions (mm) and weight (g)
f min
19.8
24.6
22.8
· Bedlington, Northumberland NE22 7AA, UK
d nom
0.8
ppm/°C
°C/watt
centres
watts
ohms
mount
watts
ohms
volts
12.7
20.3
18.9
PCB
°C
%
radius
bend
Min
1.2
22, 33, 47, 68, 100
22 to 100
ULW2
250
110
radius
10
bend
Min
2
0.5
1.1
1.0
See Pulse Performance graphs
10, 22, 27, 33, 47, 68, 100
d
-55 to +155
10 to 100
D
ULW3
±200
350
15
82
5
3
Welwyn Components
L
ULW4
500
20
10
10
62
f
4
TT electronics plc
A subsidiary of
03. 09

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ULW4-10RJA1 Summary of contents

Page 1

... Marking ULW2 & ULW3 resistors are marked with five colour bands. The first four indicate value and tolerance in conformance with IEC62. The fifth yellow band denotes defined fusibility. ULW4 resistors are legend marked with type, value and tolerance. General Note Welwyn Components reserves the right to make changes in product specification without notice or liability. ...

Page 2

... Telephone: +44 (0)1670 822181 · Facsimile: +44 (0)1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com Maximum ΔR% 5 ΔR% 5 ΔR% 5 ΔR% 5 ΔR% 5 ΔR% 5 ΔR% 5 ΔR% 5 ΔR% 5 Body Temperature Rise 250 200 150 100 50 0 200 250 300 0 Welwyn Components Typical 55/200/ ULW3 ULW2 ULW4 Pow er (W) 03. 09 ...

Page 3

... ULW Series Pulse Performance Pulse Energy Limit (single or low repetition rate, R<5 Value (ohms) ULW4-10RJ has an energy limit of 4.3J and a 1.2/50 s peak voltage limit of 1.1kV. Fusing Performance ULW3 & ULW4 Fusing Characteristic Notes: 1. Typical fusing times are around 1/3 of the maximum figures. ...

Page 4

... Example: ULW2 at 33 ohms and 5% tolerance in ammo pack box of 2500 pieces - – Type Value (use IEC62 code) Tolerance (use IEC62 code Packing A25 ULW2 Ammo A1 ULW3, ULW4 © Welwyn Components Limited · Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0)1670 822181 · Facsimile: +44 (0)1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com Figure Body location < ...

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