High Value Surface

Mounted Resistors

HR 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.

© TT electronics plc

11. 11

Electrical Data

Power Rating

The high resistance value of these devices is such that power dissipation is always small. The rating is therefore determined by

voltage considerations only, as shown in the table below.

0503

0805

1005

1206

Notes

s

tl

o

v

0

1

t

a

d

e

r

u

s

a

e

M

G

0

5

o

t

M

0

0

1

G

0

2

o

t

M

0

1

s

m

h

o

*

e

g

n

a

r

e

c

n

a

t

s

i

s

e

R

Limiting element voltage

volts

50

100

150

200

5

5

1

+

o

t

5

5

-

C

°

e

g

n

a

r

e

r

u

t

a

r

e

p

m

e

t

t

n

e

i

b

m

A

s

tl

o

v

0

1

t

a

d

e

r

u

s

a

e

M

0

0

0

1

-

o

t

0

0

0

5

1

-

o

t

0

0

0

0

2

-

o

t

0

0

0

5

2

-

o

t

0

C

°

/

m

p

p

R

C

T

Resistance tolerance

%

10M to 500M:10

100M to 1G:5,10

> 1G to 50G:25, 50

>500M : 25, 50

High Value Surface

Mounted Resistors

HR Series

Custom designs / sizes available

Resistance range to 50G ohms

Terminations available for wire bonding

or soldering

Low voltage coefficient of resistance

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

Issue B · 03.02

A subsidiary of

TT electronics plc

Welwyn Components

20

Dimensions (mm) & Weight (g)

Wrap around

Planar

Style

L

W

T max.

A

C

Wt

0503

1.25 ± 0.2 0.63 ± 0.15

0.5

Not available

0.2 ± 0.1

0.005

0805

2.0 ± 0.3

1.25 ± 0.2

0.6

0.3 ± 0.15

0.9min

0.3 ± 0.1

0.009

1005

2.5 ± 0.3

1.25 ± 0.2

0.7

Not available

0.4 ± 0.15

0.015

1206

3.2 ± 0.4

1.6 ± 0.2

0.7

0.4 ± 0.2

1.7min

0.4 ± 0.15

0.020

T

W

A

A

B

L

Wrap-around terminations

(3 faces)

T

W

L

Planar terminations

C

C

Construction

The resistor material is screen printed onto a 96% alumina

substrate and covered with a protection comprising of a glaze

followed by an organic coating. This construction gives an

insulated device.

Marking

All relevant information is recorded on the primary package

or reel.

Terminations

Planar (or single-sided) termination is gold and suitable for

wire-bonding; wrap around is suitable for soldering.

Solderability

Wrap-around terminations on HR resistors have good ‘leach’

resistance properties. They will withstand immersion in solder

at 260°C for 30 seconds.

Alternative styles for

surface mounting

resistors

*Higher values available, consult factory for details

Physical Data

†

This dimension determines the number of conductors which may pass under the surface mounted device.

Electrical Data

Power Rating

The high resistance value of these devices is such that power dissipation is always small. The rating is therefore determined by

voltage considerations only, as shown in the table below.

0503

0805

1005

1206

Notes

s

tl

o

v

0

1

t

a

d

e

r

u

s

a

e

M

G

0

5

o

t

M

0

0

1

G

0

2

o

t

M

0

1

s

m

h

o

*

e

g

n

a

r

e

c

n

a

t

s

i

s

e

R

Limiting element voltage

volts

50

100

150

200

5

5

1

+

o

t

5

5

-

C

°

e

g

n

a

r

e

r

u

t

a

r

e

p

m

e

t

t

n

e

i

b

m

A

s

tl

o

v

0

1

t

a

d

e

r

u

s

a

e

M

0

0

0

1

-

o

t

0

0

0

5

1

-

o

t

0

0

0

0

2

-

o

t

0

0

0

5

2

-

o

t

0

C

°

/

m

p

p

R

C

T

Resistance tolerance

%

10M to 500M:10

100M to 1G:5,10

> 1G to 50G:25, 50

>500M : 25, 50

High Value Surface

Mounted Resistors

HR Series

Custom designs / sizes available

Resistance range to 50G ohms

Terminations available for wire bonding

or soldering

Low voltage coefficient of resistance

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

Issue B · 03.02

A subsidiary of

TT electronics plc

Welwyn Components

20

Dimensions (mm) & Weight (g)

Wrap around

Planar

Style

L

W

T max.

A

C

Wt

0503

1.25 ± 0.2 0.63 ± 0.15

0.5

Not available

0.2 ± 0.1

0.005

0805

2.0 ± 0.3

1.25 ± 0.2

0.6

0.3 ± 0.15

0.9min

0.3 ± 0.1

0.009

1005

2.5 ± 0.3

1.25 ± 0.2

0.7

Not available

0.4 ± 0.15

0.015

1206

3.2 ± 0.4

1.6 ± 0.2

0.7

0.4 ± 0.2

1.7min

0.4 ± 0.15

0.020

T

W

A

A

B

L

Wrap-around terminations

(3 faces)

T

W

L

Planar terminations

C

C

Construction

The resistor material is screen printed onto a 96% alumina

substrate and covered with a protection comprising of a glaze

followed by an organic coating. This construction gives an

insulated device.

Marking

All relevant information is recorded on the primary package

or reel.

Terminations

Planar (or single-sided) termination is gold and suitable for

wire-bonding; wrap around is suitable for soldering.

Solderability

Wrap-around terminations on HR resistors have good ‘leach’

resistance properties. They will withstand immersion in solder

at 260°C for 30 seconds.

Alternative styles for

surface mounting

resistors

*Higher values available, consult factory for details

Physical Data

†

This dimension determines the number of conductors which may pass under the surface mounted device.