SRT CHS 4020 Series

Product Features

Non-magnetic thick film chip resistor
Resistance range from 10MΩ to 1TΩ
Tolerances from ±0.25% to ±30%
TCR from ±25 ppm/°C to ±1000 ppm/°C
Power rating of 1W (at +70°C)
Temperature range from -55°C up to +155°C

Applications

The CHS 4020 high ohmic non-magnetic resistor series from SRT Resistor Technology offers a high resistance range from 10MΩ up to 1TΩ, power rating of 2W and voltage rating of 4000V trimmed or 6000V untrimmed (tolerances ≥5.0%), all in a small 4020 surface mount package. By utilising SRT’s thick film resistor technology, these chip resistors are able to offer tolerances down to ±0.25% (between 10MΩ and 100MΩ), TCR as low as ±25 ppm/°C (between 10MΩ and 1GΩ) and a VCR as low as ±10 ppm/V (between 10MΩ and 100MΩ). The CHS 4020 resistor series contains no organics, making them suitable for high vacuum applications and offer PtAg (platinum silver) terminations for conductive gluing and soldering.

Surface-mount thick film chip resistor
Available in any resistance between 10MΩ and 1TΩ
4020 package
Power rating of 2W at +70°C
Voltage rating of 4000V trimmed or 6000V untrimmed (tolerances ≥5.0%)
Tolerances as low as ±0.25% over the resistance range of 10MΩ up to 100MΩ
TCR as low as ±25 ppm/°C over the resistance range of 10MΩ to 1GΩ
VCR as low as ±10 ppm/V (between 10MΩ up to 100MΩ)
Temperature range from -55°C up to +155°C
Non-magnetic
PtAg (platinum silver) terminations for conductive gluing and soldering
Low temperature and voltage dependency
No organics

The CHS high ohmic non-magnetic resistor series is also available with an extended high temperature range version (up to +300°C). Please see the separate CHS-HT product pages for further information.

Lower tolerance, TCR and VCR options are available upon request. Please contact us for further information and availability.

The below table gives full specifications for each resistor model available including the CHS 4020 series:

¹⁾ At continuous power dissipation the dimensions of solder-pads have to secure a sufficient heat removal
²⁾ Continuous operating voltage (U_, U_eff): V ≤ √(P*R) or max. working voltage (the lower value)
³⁾ TCR: in ppm/K; +25°C…+125°C; TCR lower than standard TCR (highest value) or value >100G: +25°C…+85°C
⁴⁾ VCR: typical values, all negative, not for all TCR values available

SRT CHS 4020 Series

Resistance Value
Temperature Coefficient
Tolerance
Clear

Custom resistance value (Ω) *
Custom AT Range (AT) *
Custom Capacity (lbs) *
Custom Pressure (Bar/PSI) *
Custom Resistance Value Element 1 (Ω) *
Custom Resistance Value Element 2 (Ω) *
Custom lead length (mm) *
Custom lead length (inches) *

Quantity

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Specifications

Weight	0.00000 kg
Dimensions	0.60 x 5.10 x 10.20mm
Maximum Resistance	1TΩ
Minimum Resistance	10MΩ
Package / Size	Surface-mount, 4020
Power Rating	2W
Product Type	Thick Film, Non-Magnetic, Resistor
Resistance Value	Custom (10MΩ – 100MΩ), Custom (100MΩ – 500MΩ), Custom (500MΩ – 1GΩ), Custom (1GΩ – 10GΩ), Custom (10GΩ – 100GΩ), Custom (100GΩ – 1TΩ)
Series / Model	CHS
Temperature Coefficient	±50 ppm/°C, ±100 ppm/°C, ±250 ppm/°C, ±500 ppm/°C, ±1000 ppm/°C
Temperature Range (°C)	-55 to +155°C
Termination / Connection	PtAg
Tolerance	±0.25%, ±0.5%, ±1%, ±2%, ±5%, ±10%, ±20%, ±30%

RoHS Compliant Product – SRT with Exemption

This product is available compliant to the RoHS EU directive 2011/65/EU, however, the following exemptions according to the RoHS annex are applicable:

No. 7(a) – 'Lead in high melting temperature type solders (i.e. lead-based alloys containing 85% by weight or more lead)' used in leaded resistors
No. 7(c)-I – 'Electrical and electronic components containing lead in glass or ceramic…or in a glass or ceramic matrix compound' used in chip resistors and leaded thick film resistors

SRT CHS Technical Library

We are pleased to provide you with a range of additional content including videos, product datasheets, case studies, white papers and application notes for your reference. Please see below for the latest content available:

DOCUMENTATION
	SRT CHS high ohmic SMD chip resistor datasheet