HVC2010-62M0JT3 - Welwyn Components, Ltd.

1206 2010 2512 Notes

Power rating @70°C Watts 0.3 0.5 1

Limiting element voltage Volts 1000 2000 3000

DC or AC peak

Overload voltage (2s) Volts 1500 3000 4000

Resistance range Ohms 100K to 100M Consult factory for

out of range values

Resistance tolerance % 0.5,1,2,5,10 See table of

value ranges

TCR ppm/°C 100

Ambient temperature range °C -55 to +155

Values E24 & E96 preferred Any value to order

Thermal Impedance °C/W 200 80 70

Tolerance %

Size 10 5 2 1 0.5

1206 100K to 100M 100K to 100M 100K to 10M 100K to 2M N/A

2010 100K to 100M 100K to 100M 100K to 10M 100K to 10M N/A

2512 100K to 100M 100K to 100M 100K to 10M 100K to 10M 100K to 10M

High Voltage

Chip Resistors

HVC Series

•Continuous voltages up to 3kV

•Overload voltages up to 4kV

•Values up to 100M

•Tolerances to ±0.5%

•Robust thick film construction

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 D · 11.05

A subsidiary of

TT electronics plc

Welwyn Components

Value Ranges (Ohms)

Dimensions (mm) & Weight (g)

L W T A B C Wt.

1206 3.2±0.2 1.6±0.2 0.6±0.1 0.35±0.2 1.95 min 0.35±0.2 0.010

2010 5.1±0.2 2.5±0.2 0.7±0.1 0.45±0.2 3.70 min 0.4±0.25 0.035

2512 6.5±0.2 3.2±0.2 0.7±0.1 0.45±0.2 5.00 min 0.4±0.2 0.055

Physical Data

Wrap-around terminations

(3 faces)

High Voltage

Chip Resistors

HVC Series

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com Issue D · 11.05

Welwyn Components

Maximum Typical

Load at rated power: 1000 hours rated load @ 70°C ∆R% 1206: 2 1206: 1

2010/2512: 1 2010/2512: 0.25

Shelf life test: 12 months at room temperature ∆R% 0.1 0.02

Derating from rated power at 70°C Zero at 155°C

Short term overload: Lesser of 6.25 x rated power or 1.5 x LEV for 2S ∆R% 2 0.2

Lightning strike: 1.2/50µs & 10/700µs - see graph for peak voltage ∆R% 0.5 0.2

Dry heat: 1000 hours at 155°C ∆R% 0.5 0.1

Long term damp heat ∆R% 1 0.25

Temperature rapid change ∆R% 0.25 0.05

Resistance to solder heat ∆R% 0.25 0.05

Voltage proof Volts 500

1206: -25 1206: -15

Voltage coefficient of resistance ppm/V 2010: -15 2010: -5

2512: -5 2512: -1.5

Performance Data

Construction

Resistive thick film material, overglaze and organic

protection are screen printed on a 96% alumina substrate.

The design and laser adjustment of the resistive element

optimises the limiting element voltage of the resistor.

Terminations

The chips are supplied with wrap-around terminations

suitable for soldering. Consult factory for alternative

termination options.

Solderability

The terminations have an electroplated nickel barrier and tin

finish. This ensures excellent ‘leach’ resistance properties and

solderability.

Marking

The body protection is resistant to all normal cleaning solvents

suitable for printed circuits. The chips are not marked and the

relevant information on type, value, tolerance date code and

quantity are recorded on the reel.

0.1 1 10 100

Lightning Strike Performance

Resistance Value (MOhms)

Peak Voltage (kV)

1206-1.2/50 1206-10/700 2010-1.2/50

2010-10/700 2512-1.2/50 2512-10/700

0.1 1 10 100

3500

3000

2500

2000

1500

1000

500

Maximum Continuous Voltage

Resistance Value (MOhms)

Voltage (V)

HVC1206

HVC2512

HVC2010

Commodity Chip

Note: maximum peak voltage tested was 6kV; performance beyond this is estimated.

Type HVC 2512 - 4M7 F T 1 8

Size

Value (use IEC62 code)

Tolerance (use IEC62 code) Packing

D 0.5% J 5%

F 1% K 10%

G2%

T3 Tape 1206 or 2010 3000/reel Standard

T18 2512 1800/reel

2.5 ± 0.5

13 ± 0.5

33 ± 1.0

Marking

(Both sides)

0.8 ± 0.15

80 ± 2

178 ± 2

High Voltage

Chip Resistors

HVC Series

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com Issue D · 11.05

Welwyn Components

Packaging

HVC Resistors are supplied taped and reeled as per IEC 286-3.

Tape and reel dimensions (mm) Qty.

Wr W P1 P0 P2 D0 D1 E F A0 B0 K0 T T1 T2 per

±0.5 ±0.3 ±0.1 ±0.1 ±0.05 ±0.1 ±0.2 ±0.1 ±0.05 ±0.1 ±0.1 ±0.1 ±0.05 Nom. ±0.15 reel

1206 9 8 4 4 2 1.5 1 1.75 3.5 1.95 3.55 1.0 0.2 0.05 1.3 3000

2010 13 12 8 4 2 1.5 1.5 1.75 5.5 2.79 5.89 0.91 0.28 0.06 1.21 3000

2512 13 12 8 4 2 1.5 1.5 1.75 5.5 3.61 6.96 1.17 0.28 0.06 1.45 1800

Ordering Procedure

Example: HVC2512 at 4.7 megohms and 1% tolerance on a reel of 1800 pieces -

Application Notes

HVC resistors are ideally suited for handling by automatic

methods due to their rectangular shape and the small

dimensional tolerances. Electrical connection to a ceramic

substrate or to a printed circuit board can be made by reflow

or wave soldering of wrap-around terminations.

Wrap-around terminations provide good leach properties and

ensure reliable contact. Due to the robust construction, the

HVC can be immersed in the solder bath for 30 seconds at

260°C. This enables the resistor to be mounted on one side

of a printed circuit board and wire-leaded components

applied on the other side.

HVC resistors themselves can operate at a maximum

temperature of 155°C (see performance above). For soldered

resistors, the joint temperature should not exceed 110°C. This

condition is met when the stated power levels at 70°C are used.

The PCB layout should avoid tracks running between the HVC

mounting pads, as this would compromise the LEV.

The LEV stated applies to operation at sea-level pressure, in a

non-condensing atmosphere and non-contaminating

environment. Voltage derating should be applied if low

pressure, high humidity or contamination may be encountered.

The termination clearance dimension (B) should be used in

conjunction with the creepage limit applicable to the circuit

application in order to determine the derated LEV.