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ROX

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Revision: 31-Jan-17 1Document Number: 31033

For technical questions, contact: ff2aresistors@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

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Metal Oxide Resistors, Special Purpose, High Voltage

The ROX is an excellent choice for high voltage systems

with the advantage of high wattage and space saving

dimensions.

FEATURES

• Low TCR: ± 200 ppm/°C standard;

± 100 ppm/°C, ± 50 ppm/°C available;

non-inductive only available with TC of

± 200 ppm/°C

• Tolerance: ± 1 %; ± 2 %; ± 5 %; ± 10 %

• High Voltage (up to 45 kV)

• For oil bath or open air operation

• Standard ROX product is coated; optional uncoated

version of the ROX product is available on request

• Matched sets available

• Special testing available upon request

• Applications: HV power supplies; laboratory equipment;

power control; aeronautical

• Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

Note

This datasheet provides information about parts that are RoHS-compliant and / or parts that are non RoHS-compliant. For example, parts



with lead (Pb) terminations are not RoHS-compliant. Please see the information / tables in this datasheet for details

Available

STANDARD ELECTRICAL SPECIFICATIONS

GLOBAL

MODEL

HISTORICAL

MODEL

POWER RATING MAXIMUM

WORKING

VOLTAGE (1)

RESISTANCE

RANGE (2)



TOLERANCE

± %

TEMPERATURE

COEFFICIENT (3)

± ppm/°C

P25 °C

P70 °C

P125 °C

ROX050 ROX-1/2 2 1.4 1 2K

1M to 100M 1, 2, 5, 10 50

1k to 100M 1, 2, 5, 10 100

100 to 1G 1, 2, 5, 10 200

ROX050..P ROX-1/2P 2.8 1.96 1.4 2K

1M to 100M 1, 2, 5, 10 50

1k to 100M 1, 2, 5, 10 100

100 to 1G 1, 2, 5, 10 200

ROX075 ROX-3/4 3 2.16 1.5 5K

1M to 100M 1, 2, 5, 10 50

1k to 500M 1, 2, 5, 10 100

100 to 3G 1, 2, 5, 10 200

ROX075..N ROX-3/4N 3 2.16 1.5 5K 100 to 1M 1, 2, 5, 10 200

ROX075..P ROX-3/4P 4.2 3.02 2.1 5K

1M to 100M 1, 2, 5, 10 50

1k to 500M 1, 2, 5, 10 100

100 to 3G 1, 2, 5, 10 200

ROX075..NP ROX-3/4NP 4.2 3.02 2.1 5K 100 to 1M 1, 2, 5, 10 200

ROX100 ROX-1 4 2.88 2 7.5K

1M to 100M 1, 2, 5, 10 50

1k to 500M 1, 2, 5, 10 100

150 to 3G 1, 2, 5, 10 200

ROX100..N ROX-1N 4 2.88 2 7.5K 100 to 1M 1, 2, 5, 10 200

ROX100..P ROX-1P 5.6 4.03 2.8 7.5K

1M to 100M 1, 2, 5, 10 50

1k to 500M 1, 2, 5, 10 100

150 to 3G 1, 2, 5, 10 200

ROX100..NP ROX-1NP 5.6 4.03 2.8 7.5K 100 to 1M 1, 2, 5, 10 200

ROX150 ROX-1-1/2 5 3.6 2.5 11K

1M to 100M 1, 2, 5, 10 50

1k to 500M 1, 2, 5, 10 100

200 to 3G 1, 2, 5, 10 200

ROX150..N ROX-1-1/2N 5 3.6 2.5 11K 100 to 1M 1, 2, 5, 10 200

ROX

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Revision: 31-Jan-17 2Document Number: 31033

For technical questions, contact: ff2aresistors@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

Notes

•Resistance values of 1 k and below are calibrated at 1 VDC, values above 1 k up to 100 k are calibrated at 10 VDC, and values

above 100 k are calibrated at 100 VDC. Calibration at other voltages available

• ± 1 % not available above 1 G

• Part marking: Print marked - Dale, model, value, tolerance, temperature coefficient, date code

(1) Continuous working voltage shall be or maximum working voltage, whichever is less

(2) For resistance values above and below those listed please contact us

(3) Typical TCR results

ROX150..P ROX-1-1/2P 7 5.04 3.5 11K

1M to 100M 1, 2, 5, 10 50

1k to 500M 1, 2, 5, 10 100

200 to 3G 1, 2, 5, 10 200

ROX150..NP ROX-1-1/2NP 7 5.04 3.5 11K 100 to 1M 1, 2, 5, 10 200

ROX200 ROX-2 6 4.32 3 15K

1M to 500M 1, 2, 5, 10 50

1k to 1G 1, 2, 5, 10 100

205 to 3G 1, 2, 5, 10 200

ROX200..N ROX-2N 6 4.32 3 15K 100 to 1M 1, 2, 5, 10 200

ROX200..P ROX-2P 8.4 6.05 4.2 15K

1M to 500M 1, 2, 5, 10 50

1k to 1G 1, 2, 5, 10 100

205 to 3G 1, 2, 5, 10 200

ROX200..NP ROX-2NP 8.4 6.05 4.2 15K 100 to 1M 1, 2, 5, 10 200

ROX300 ROX-3 10 7.2 5 22.5K

1M to 500M 1, 2, 5, 10 50

1k to 1G 1, 2, 5, 10 100

330 to 3G 1, 2, 5, 10 200

ROX300..N ROX-3N 10 7.2 5 22.5K 400 to 10M 1, 2, 5, 10 200

ROX300..P ROX-3P 14 10.1 7 22.5K

1M to 500M 1, 2, 5, 10 50

1k to 1G 1, 2, 5, 10 100

330 to 3G 1, 2, 5, 10 200

ROX300..NP ROX-3NP 14 10.1 7 22.5K 400 to 10M 1, 2, 5, 10 200

ROX400 ROX-4 12 8.64 6 30K

1M to 500M 1, 2, 5, 10 50

1k to 1G 1, 2, 5, 10 100

600 to 3G 1, 2, 5, 10 200

ROX400..N ROX-4N 12 8.64 6 30K 500 to 10M 1, 2, 5, 10 200

ROX400..P ROX-4P 16.8 12.1 8.4 30K

1M to 500M 1, 2, 5, 10 50

1k to 1G 1, 2, 5, 10 100

600 to 3G 1, 2, 5, 10 200

ROX400..NP ROX-4NP 16.8 12.1 8.4 30K 500 to 10M 1, 2, 5, 10 200

ROX500 ROX-5 16 11.5 8 37.5K

1M to 500M 1, 2, 5, 10 50

1k to 1G 1, 2, 5, 10 100

750 to 3G 1, 2, 5, 10 200

ROX500..N ROX-5N 16 11.5 8 37.5K 500 to 10M 1, 2, 5, 10 200

ROX500..P ROX-5P 22.4 16.1 11.2 37.5K

1M to 500M 1, 2, 5, 10 50

1k to 1G 1, 2, 5, 10 100

750 to 3G 1, 2, 5, 10 200

ROX500..NP ROX-5NP 22.4 16.1 11.2 37.5K 500 to 10M 1, 2, 5, 10 200

ROX600 ROX-6 20 14.4 10 45K

1M to 500M 1, 2, 5, 10 50

1k to 1G 1, 2, 5, 10 100

850 to 3G 1, 2, 5, 10 200

ROX600..N ROX-6N 20 14.4 10 45K 500 to 10M 1, 2, 5, 10 200

ROX600..P ROX-6P 28 20.2 14 45K

1M to 500M 1, 2, 5, 10 50

1k to 1G 1, 2, 5, 10 100

850 to 3G 1, 2, 5, 10 200

ROX600..NP ROX-6NP 28 20.2 14 45K 500 to 10M 1, 2, 5, 10 200

STANDARD ELECTRICAL SPECIFICATIONS

GLOBAL

MODEL

HISTORICAL

MODEL

POWER RATING MAXIMUM

WORKING

VOLTAGE (1)

RESISTANCE

RANGE (2)



TOLERANCE

± %

TEMPERATURE

COEFFICIENT (3)

± ppm/°C

P25 °C

P70 °C

P125 °C

P x R

ROX

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Revision: 31-Jan-17 3Document Number: 31033

For technical questions, contact: ff2aresistors@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

Notes

(1) Some packaging codes are model specific.

• For additional information on packaging, refer to the Through-Hole Resistor Packaging document (www.vishay.com/doc?31544).

Note

• All dimensions given are for the standard coated version of the ROX parts.

GLOBAL PART NUMBER INFORMATION

TECHNICAL SPECIFICATIONS

PARAMETER UNIT ROX050 ROX075 ROX100 ROX150 ROX200 ROX300 ROX400 ROX500 ROX600

Insulation Resistance  1011

Category Temperature Range °C Epoxy coated = -55 / +180; Silicone coated = -55 / +230

DIMENSIONS in inches (millimeters)

GLOBAL 

MODEL

STANDARD ROX AND STYLES N, P, S STYLE T STYLE Y

AB C C MAX.

ROX050 0.550 ± 0.032 (13.97 ± 0.81) 0.700 (17.78) N/A N/A

ROX075 0.800 ± 0.032 (20.32 ± 0.81) 0.900 (22.86) 1.168 ± 0.022 (29.66 ± 0.56) 1.050 (26.67)

ROX100 0.920 ± 0.032 (23.37 ± 0.81) 1.020 (25.91) 1.288 ± 0.022 (32.72 ± 0.56) 1.170 (29.72)

ROX150 1.550 ± 0.032 (39.37 ± 0.81) 1.650 (41.91) 1.918 ± 0.022 (48.72 ± 0.56) 1.800 (45.72)

ROX200 2.050 ± 0.032 (52.07 ± 0.81) 2.150 (54.61) 2.418 ± 0.022 (61.42 ± 0.56) 2.300 (58.42)

ROX300 3.050 ± 0.032 (77.47 ± 0.81) 3.150 (80.01) 3.418 ± 0.022 (86.82 ± 0.56) 3.300 (83.82)

ROX400 4.050 ± 0.032 (102.87 ± 0.81) 4.150 (105.41) 4.418 ± 0.022 (112.22 ± 0.56) 4.300 (109.22)

ROX500 5.050 ± 0.032 (128.27 ± 0.81) 5.150 (130.81) 5.418 ± 0.022 (137.62 ± 0.56) 5.300 (134.62)

ROX600 6.050 ± 0.032 (153.67 ± 0.81) 6.150 (156.21) 6.418 ± 0.022 (163.02 ± 0.56) 6.300 (160.02)

ROX300100MGNF5

GLOBAL

MODEL

(see Electrical

Specifications

table)

R = ΩF = ± 1 % H = 50 ppm EL = lead (Pb)-free, lacer

(all, except 3, 4, 5, 6)

EE = lead (Pb)-free,

T / R (1/2, 3/4, 1 only)

EM = lead (Pb)-free, foam

(3, 4, 5, 6 only)

LB = tin / lead, lacer

(all, except 3, 4, 5, 6)

RF = tin / lead,

T / R (1/2, 3/4, 1 only)

F5 = tin / lead, foam

(3, 4, 5, 6 only)

K = kΩG = ± 2 % K = 100 ppm

M = MΩJ = ± 5 % N = 200 ppm (up to 3 digits)

G = GΩK = ±

%0 1 from 1 to 999

as applicable

910R = 910 Ω

10M0 = 10 MΩ

1G00 = 1.0 GΩ

New Global Part Numbering: ROX300100MGNF5 (preferred part numbering format)

Historical Part Number example: ROX-3100MGN (will continue to be accepted)

G100MROX-3

HISTORICAL

MODEL CONSTRUCTION

blank = standard

(dash number)

CONSTRUCTION SPECIAL

(up to 2 digits)

blank = standard

N = non-inductive

P = 0.040 Ø leads

S = solid body, axial

T = threaded terminals

-18 = Uncoated

Y = one end axial, one

threaded terminal

TEMP.

COEFFICIENT PACKAGING

(1)

NF05

RESISTANCE

VALUE

TOLERANCE

CODE

TEMP.

COEFFICIENT PACKAGING

RESISTANCE

VALUE

TOLERANCE

CODE

Style P has 0.040 (1.02) diameter leads.

0.310 (7.87) Max. Dia.

1.50 ± 0.125

(38.10 ± 3.175)

0.032 ± 0.002

(0.81 ± 0.05) Dia.

Max.

Style Y

0.330 (8.38) Max. Dia.

UNC #6-32 2B

Max.

Style T

UNC #6-32 2B

0.330 (8.38) Max. Dia.

Standard ROX and Styles N, P, and S

1.50 ± 0.125

(38.10 ± 3.175)

0.032 ± 0.002

(0.81 ± 0.05) Dia.

ROX

www.vishay.com Vishay Dale

Revision: 31-Jan-17 4Document Number: 31033

For technical questions, contact: ff2aresistors@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

DERATING

VOLTAGE COEFFICIENT

ROX MAXIMUM WORKING VOLTAGE

EWO

AMBIENT TEMPERATURE IN °C

120

100

0 20015010050 250

EPOXY

COATING

SILICONE

COATING

+ 230 °C

MECHANICAL SPECIFICATIONS

Terminal Strength 10 pound pull test

Solderability Continuous satisfactory coverage

when tested in accordance with

MIL-STD-202, Method 208

MATERIAL SPECIFICATIONS

Element High temperature fired cermet film

Core High purity 96 % alumina, tubular or solid

Coating Blue flame-retardant epoxy on ROX050 thru

ROX200. Black flameproof silicone on ROX300

thru ROX600

Termination

Standard lead material is solder-coated copper;

solderable and weldable.

0.032" (0.813 mm) style P 0.040" (1.02 mm)

available

- 5

- 10

1071081091010

- 3, - 4 - 5, - 6

- 1 1/2, - 2

- 3/4, - 1

- 1/2

AVERAGE V.C., ppm/V

RESISTANCE (Ω)

Max. Working Voltage (V)

Resistance Value (Ω)

ROX-6

ROX-5

ROX-4

ROX-3

ROX-2

ROX-1-1/2

ROX-1

ROX-3/4

ROX-1/2

35 840

17 920

8960

4480

2240

1120

560

280

140

1K 4K 16K 64K 256K 1M 4M 16.3M 65.5M 262.1M

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

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