SQP20-1K8JB1 - Welwyn Components, Ltd.

Ceramic Case Resistors –

Wirewound / Metal Oxide

SQP Series

www.bitechnologies.com www.irctt.com www.welwyn-tt.com

General Note

TT electronics reserves the right to make changes in product speciﬁcation without notice or liability.

All information is subject to TT electronics’ own data and is considered accurate at time of going to print.

09. 11

· 2 watts to 20 watts*

· Resistance 0R1 to 100K

· High overload capability

· RoHS compliant

Ceramic Case Resisters –

Wirewound / Metal Oxide

SQP Series

s2 watts to 20 watts*

sResistance 0R1 to 100K

sHigh overload capability

sRoHS compliant

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.

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

Electrical Data

Issue C · 07.06

A subsidiary of

TT electronics plc

Welwyn Components

* Other styles (radial/pluggable); sizes, and 30, 40, 50 W types are available to special order.

SQP2 SQP3 SQP5 SQP7/7S SQP10 SQP15 SQP20

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Resistance range Wirewound 0R1-50R 0R1- 0R1- 0R1-100R 0R1- 0R1- 0R1-

100R 100R (7 & 7S) 200R 200R 500R

Metal Oxide 51R- 100R- 110R- 110R-47K 220R- 220R- 510R-

(Ohms) 47K 47K 47K (7 Only) 68K 68K 100K

Limiting element voltage volts dc or ac rms 150 300 350 500 (7S-350) 750 1000 1000

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0001s t l ovegat lov noi talos I

;mpp0071 , 86R0< , s ep y t WWC˚ /mppRCT 0R68, 200ppm: MO types all values 350ppm

)J(5%ecna r e l o T ecna t s i s eR

Standard Values E24 preferred

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Physical Data

d nom ± 0.05

f L f

Min bend radius, all types 1.6 mm

Packaging

Our standard packaging for SQP Series is bulk pack

Dimensions (mm) and weight (g)

Resistors

0

Type L max. W max. H max. f min. d (±0.1) Wt. nom.

SQP2 19 8 8 23 0.70 2.2

SQP3 23 9 9 27 0.70 3.5

SQP5 23 11 10 27 0.75 5.0

SQP7 36 11 10 30 0.75 8.2

SQP7S 26 10 10 30 0.75 6.0

SQP10 50 11 11 30 0.75 11.0

SQP15 50 13.5 13.5 30 0.75 17.4

SQP20 61 15.5 14.5 30 0.75 25.0

Ceramic Case Resistors –

Wirewound / Metal Oxide

SQP Series

www.bitechnologies.com www.irctt.com www.welwyn-tt.com

General Note

TT electronics reserves the right to make changes in product speciﬁcation without notice or liability.

All information is subject to TT electronics’ own data and is considered accurate at time of going to print.

09. 11

Ceramic Case Resisters –

Wirewound / Metal Oxide

SQP Series

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com Issue C · 07.06

Welwyn Components

Maximum

Load at rated power (1000hrs at 70˚C) 50.0+ %5%R

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Short term overload * 50.0+ %2%R

Damp heat steady state (56 days, 40˚C, 90% RH) 50.0+ %2%R

Temperature rapid change 50.0+ %2%R

Resistance to solder heat 50.0+ %1%R

Pulse handling Data available by request

Construction

A high purity ceramic rod, with force fit end caps onto which is wound a wire element: or a deposited metal oxide film

(depending on value). The element is fitted into a ceramic case with fireproof insulation cement.

Termination Details

Material The tinned copper lead wires are internally welded to the resistance element end caps.

Solderability The terminations meet the requirements of IEC 115-1 Clause 4.17.3.2

Strength The terminations meet the requirements of IEC 86.2.21

Marking

Type reference, resistance value and tolerance are legend marked onto the upper surface.

Flammability

The resistor will not burn or emit incandescent particles under any condition of applied temperature or

overload.

Solvent resistance

The body protection and marking are resistant to all normal industrial solvents suitable for printed

circuits.

Performance Data

*(Wirewound:: the lower of 5x rated power, or 2.5x LEV for 5 secs. Metal Oxide:: the lower of 6.25x rated power, or 2.5x LEV for 5 secs)

Metal Oxide types

100%

50%

-30 70 155 240

T˚C

118%

Wirewound types

100%

50%

-30 25 70 155 240

T˚C

Ordering Procedure

Example: 5,000 SQP3 at 1.2 kilohms and 5% tolerance in standard bulk pack option-

Model SQP3 – 1K2 J B10

Value (use IEC62 code)

Tolerance (use IEC62 code)

J 5%

Packing

CODE Family Qty/

Carton

B5 SQP2,3,5 5000

Bulk

B15 Pack SQP7,10 1500

B1 SQP15,20 1000

0

Resistors

Ceramic Case Resisters –

Wirewound / Metal Oxide

SQP Series

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com Issue C · 07.06

Welwyn Components

Maximum

Load at rated power (1000hrs at 70˚C) 50.0+ %5%R

hpa rG eeSC˚07 ta rewop detar m or f gni tareD

Short term overload * 50.0+ %2%R

Damp heat steady state (56 days, 40˚C, 90% RH) 50.0+ %2%R

Temperature rapid change 50.0+ %2%R

Resistance to solder heat 50.0+ %1%R

Pulse handling Data available by request

Construction

A high purity ceramic rod, with force fit end caps onto which is wound a wire element: or a deposited metal oxide film

(depending on value). The element is fitted into a ceramic case with fireproof insulation cement.

Termination Details

Material The tinned copper lead wires are internally welded to the resistance element end caps.

Solderability The terminations meet the requirements of IEC 115-1 Clause 4.17.3.2

Strength The terminations meet the requirements of IEC 86.2.21

Marking

Type reference, resistance value and tolerance are legend marked onto the upper surface.

Flammability

The resistor will not burn or emit incandescent particles under any condition of applied temperature or

overload.

Solvent resistance

The body protection and marking are resistant to all normal industrial solvents suitable for printed

circuits.

Performance Data

*(Wirewound:: the lower of 5x rated power, or 2.5x LEV for 5 secs. Metal Oxide:: the lower of 6.25x rated power, or 2.5x LEV for 5 secs)

Metal Oxide types

100%

50%

-30 70 155 240

T˚C

118%

Wirewound types

100%

50%

-30 25 70 155 240

T˚C

Ordering Procedure

Example: 5,000 SQP3 at 1.2 kilohms and 5% tolerance in standard bulk pack option-

Model SQP3 – 1K2 J B10

Value (use IEC62 code)

Tolerance (use IEC62 code)

J 5%

Packing

CODE Family Qty/

Carton

B5 SQP2,3,5 5000

Bulk

B15 Pack SQP7,10 1500

B1 SQP15,20 1000

0

Resistors