APL1600-10RFI

Manufacturer Part NumberAPL1600-10RFI
DescriptionTubular Vitreous Enamelled Wirewound Resistors
ManufacturerWELWYN [Welwyn Components Limited]
APL1600-10RFI datasheet
 
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Tubular Vitreous Enamelled
Wirewound Resistors
1600/1900 Series
Impervious lead free vitreous enamel coating
Can be supplied with fixed, adjustable,
tapped or low inductance winding
Seven termination styles with choice of
mounting arrangements
Manufactured RoHS compliant
Pb-free terminations*
* Check status of stock when ordering
General Information
Vitreous enamelled wirewound resistors are capable of
withstanding a higher dissipation size for size, than any other
protected type; this is attributable to the higher operating
temperature which the wire and enamel can withstand.
Vitreous enamel provides exceptionally good protection to the
wire element and is essentially impervious to moisture. The
resistors can safely be used in harsh environmental conditions.
The Welwyn range is based on thirteen sizes of tube, each of
which has a recommended maximum dissipation which limits
operating surface temperature to a maximum of 375°C.
The stability and high reliability of Welwyn tubular vitreous
resistors is a direct result of the best quality materials being
used in their construction.
High purity ceramic tubes have been matched with nickel
Electrical Data
Power rating at 70°C
Resistance range
Limiting element voltage
TCR (-55 to +200°C)
Resistance tolerance
Values
Thermal impedance
Operating temperature range
Power rating at 70°C
Resistance range
Limiting element voltage
TCR (-55 to +200°C)
Resistance tolerance
Values
Thermal impedance
Operating temperature range
Note See Figure 1 for curves of temperature rise / watts dissipation.
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, relates to current manufacture and is considered accurate at time of going to print.
© 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
Welwyn Components
chromium resistance wires and specially formulated enamel to
ensure that the resistors can withstand repeated heat cycling
without damage.
Connections between the resistance element and end
terminations are welded; other connections are brazed.
Mounting devices are available which permit resistors to be
mounted by both ends or by one end. Single ended mounting
is recommended for applications which do not subject the
resistor to shock or vibration.
Ferrules and the F type mounting plug are anchored into the
tubes with high temperature adhesive.
Special requirements, for types or styles not described
in this brochure, will be considered for economic
quantities.
1601
1905
1600
1602
watts
11
16
16.5
17
ohms
See Table 1
volts
See Table 1
ppm/°C
Typically: <+75
Maximum + 200
%
1, 2, 5, 10
See table 1 for value restrictions
E24 preferred
°C/watt
See fig. 1
°C
-55 to +375
1605
1908
1607
watts
47
54
76
ohms
See Table 1
volts
See Table 1
ppm/°C
Typically: <+75
%
1, 2, 5, 10
See table 1 for value restrictions
E24 preferred
°C/watt
See fig. 1
°C-55 to +375
1906
1603
1604
22
25
35
1606
1608
1609
91
115
165
Maximum + 150
A subsidiary of
TT electronics plc
Issue E · 10.05
121

APL1600-10RFI Summary of contents

  • Page 1

    Tubular Vitreous Enamelled Wirewound Resistors 1600/1900 Series • Impervious lead free vitreous enamel coating • Can be supplied with fixed, adjustable, tapped or low inductance winding • Seven termination styles with choice of mounting arrangements • Manufactured RoHS compliant Pb-free ...

  • Page 2

    Tubular Vitreous Enamelled Wirewound Resistors 1600/1900 Series Electrical Data (continued) Table 1 *Dissipation (watts) to produce operating hotspot temperature (°C) of: Ambient = 20°C Type 200 300 375 1601 1905 7 14.5 20 1600 7 ...

  • Page 3

    Tubular Vitreous Enamelled Wirewound Resistors 1600/1900 Series Physical Data Table 2 Dimensions in millimetres. See fig 2-8 for styles A B Type max max 1601 33.0 17.5 1905 56.1 14.5 1600 61.5 14.5 1602 51.0 17.5 1906 64.3 17.5 1603 ...

  • Page 4

    Tubular Vitreous Enamelled Wirewound Resistors 1600/1900 Series Adjustable Resistors (see Figure 9) Adjustable resistors use the same basic construction as fixed resistors already described, and have a window in the vitreous enamel through which contact is made to the resistive ...

  • Page 5

    Tubular Vitreous Enamelled Wirewound Resistors 1600/1900 Series Tapped Resistors See Figure 10 Fixed resistors can be supplied with taps to special order. Because of the reduced winding length, the total resistance of a tapped resistor will be less than can ...

  • Page 6

    Tubular Vitreous Enamelled Wirewound Resistors 1600/1900 Series Table 6 mounting clip dimension (mm) Clip Type ref. type nom. max nom. max max max ±0.2 1601 52 68 1602 70 86 MD1 1603 90 106 29 19 ...

  • Page 7

    Tubular Vitreous Enamelled Wirewound Resistors 1600/1900 Series Ordering Procedure Specify the full type reference, resistance value and tolerance, using IEC 62 code references. The addition the prefix describing terminal configuration indicates Ayrton-Perry winding. Example: Electrically live ferrule ...