G, GN

Wirewound Resistors, Military, MIL-PRF-26 Qualified,

Type RW, Precision Power, Silicone Coated

Vishay Dale

Document Number: 30205

For technical questions, contact: ww2bresistors@vishay.com

www.vishay.com

Revision: 22-Mar-06

151

DIMENSIONS in inches [millimeters]

Notes

MATERIAL SPECIFICATIONS

Element: Copper-nickel alloy or nickel-chrome alloy,

depending on resistance value

Core: Ceramic, beryllium oxide or alumina, depending on

resistor model

Coating: Special high temperature silicone

Standard Terminals: 100 % Sn, or 60/40 Sn/Pb coated

End Caps: Stainless steel

date code

Notes

GN NON-INDUCTIVE

Models of equivalent physical and electrical specifications

are available with non-inductive (Aryton-Perry) winding.

They are identified by inserting the letter N after G in the

model number (GN-5, for example). Two conditions apply:

1. For GN models, divide maximum resistance values by two

2. Body O.D. on GN-5C may exceed that of the G-5C by 0.010"

TERMINATION

When G resistors will be operated at full rated power,

resistance welding or high temperature solder are the

recommended termination methods. Termination should be

GLOBAL

MODEL

DIMENSIONS in inches [millimeters]

CD

G-1-80

G-1-380

0.250 ± 0.031

[6.35 ± 0.787]

0.281

[7.14]

0.085 ± 0.020

[2.16 ± 0.508]

0.020 ± 0.002

[0.508 ± 0.051]

G2

0.312 ± 0.016

[7.92 ± 0.406]

0.328

[8.33]

0.078 + 0.016 - 0.031

[1.98 + 0.406 - 0.787]

0.020 ± 0.002

[0.508 ± 0.051]

G-3-80

G-3-380

0.406 ± 0.031

[10.31 ± 0.787]

0.437

[11.10]

0.094 ± 0.031

[2.39 ± 0.787]

0.020 ± 0.002

[0.508 ± 0.051]

G-5

0.562 ± 0.062

[14.27 ± 1.57]

0.622

[15.80]

0.188 ± 0.032

[4.78 ± 0.813]

0.032 ± 0.002

[0.813 ± 0.051]

G-5C

0.500 ± 0.062

[12.70 ± 1.57]

0.593

[15.06]

0.218 ± 0.032

[5.54 ± 0.813]

0.040 ± 0.002

[1.02 ± 0.051]

G-10

0.875 ± 0.062

[22.23 ± 1.57]

1.0

[25.4]

0.312 ± 0.032

[7.92 ± 0.813]

0.040 ± 0.002

[1.02 ± 0.051]

C

D

L

1.50

[38.10]

(1)

min.

L

1

- 65 - 50

0

50

150

250

350

AMBIENT TEMPERATURE IN °C

Derating

120

100

80

60

40

20

0

CHAR. V

CHAR. U

25

PERFORMANCE

TEST

CONDITIONS OF TEST

TEST LIMITS

(CHARACTERISTIC U)

Thermal Shock

Rated power applied until thermally stable, then a min. of 15 min at - 55 °C

± (0.2 % + 0.05

Ω) ΔR

Short Time Overload

5 x power (G-1-80 thru G-5C), 10 x power (G-10) for 5 s

± (0.2 % + 0.05

Ω) ΔR

Dielectric Withstanding Voltage

± (0.1 % + 0.05

Ω) ΔR

Low Temperature Storage

- 65 °C for 24 h

± (0.2 % + 0.05

Ω) ΔR

High Temperature Exposure

250 h at + 250 °C (Characteristic U)

± (0.5 % + 0.05

Ω) ΔR

Moisture Resistance

MIL-STD-202 Method 106, 7b not applicable

± (0.2 % + 0.05

Ω) ΔR

Shock, Specified Pulse

MIL-STD-202 Method 213, 100 g's for 6 ms, 10 shocks

± (0.1 % + 0.05

Ω) ΔR

Vibration, High Frequency

Frequency varied 10 to 2000 Hz, 20 g peak, 2 directions 6 h each

± (0.1 % + 0.05

Ω) ΔR

Load Life

2000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF”

± (0.5 % + 0.05

Ω) ΔR

Terminal Strength

5 to 10 s, 5 or 10 lb pull test (depending on size), torsion test - 3 alternating

directions, 360° each

± (0.1 % + 0.05

Ω) ΔR