High Resistance Chip Resistors

• What is HC?
• Application
• Comparison with other companies' products
• Specification

What is HC?

Characteristics

The HC type is a thick-film chip resistor capable of high resistance values ranging from 1 MΩ (megohm) to 150 GΩ (gigohm).
Generally, achieving high resistance becomes more challenging as chip resistors become smaller. However, the HC type achieves an exceptionally high resistance value of up to 150 GΩ even in the smallest size within the line-up, the 1005 size (1.0 mm × 0.5 mm).
Furthermore, its low Temperature Coefficient(TCR) and Voltage Coefficient(VCR) make it ideal for high-precision measurement equipment and various sensor applications. Combining reliability and performance, the HC type is widely adopted across diverse high-resistance applications.

Advantage

Application

E&C brand resistors, boasting world-leading high resistance values and outstanding reliability, are widely adopted as key components in cutting-edge analytical instruments, infrared sensors, acoustic equipment and similar devices, where they receive high acclaim.

Comparison with other companies' products

We conducted actual measurements comparing the temperature coefficient and voltage coefficient of the HC type with competing products in the high-resistance range where it excels.
When measuring products of the same 1608 size (1.6 mm × 0.8 mm) and 100 GΩ resistance value from each company, the HC type showed smaller variations compared to competing products, confirming its high stability.

*HC type measurement results are for reference only and are not guaranteed as specifications.
For specifications regarding temperature coefficient and voltage coefficient, please refer to the specifications.

Specification

Shape

Model	Rated power （W）	Max. working voltage DC (V)	Max. overload voltage DC (V)	Range of resistance values		Dimensions (mm)					Electrode shape ＊1	Resistance tolerance (%)
				Min. (MΩ)	Max. (GΩ)	L	H	t	l1	l2
HC3A	1	300	500	1	150	6.4 ± 0.2	3.2 ± 0.2	0.55 ± 0.1	0.5 ± 0.3	0.5 ± 0.3	D	± 5 (J)※2 ± 10 (K) ± 20 (M) ± 30 (N) ± 50※3
HC2A	0.125	150	300	1	150	3.2 ± 0.2	1.6 ± 0.2	0.55 ± 0.1	0.5 ± 0.3	0.5 ± 0.3	D
HC2B	0.06	75	150	1	150	2.0 ± 0.2	1.25 ± 0.2	0.5 ± 0.1	0.4 ± 0.2	0.4 ± 0.2	D
HC2C	0.03	50	100	1	150	1.6 ± 0.1	0.8 ± 0.1	0.45 ± 0.1	0.2 ± 0.1	0.3 ± 0.1	D
HC1C	0.016	50	100	1	150	1.0 ± 0.1	0.5 ± 0.1	0.3 ± 0.05	0.2 ± 0.1	0.25 + 0.15- 0.1	D

*1 We can also supply the T type of electrode shape.
*2 Resistance tolerance are ±5 % (≦ 10 GΩ)
*3 Please contact us for resistance ±50 %
* Also consult your local dealer for the availability of chip resistors with dimension of your needs and Au terminals.

Temperature coefficient

Model	Range of resistance values	Temperature coefficient αT [ppm/℃]	Test method
HC3A HC2A HC2B HC2C HC1C	1 MΩ ≦ R ＜ 100 MΩ	± 200	+ 25 ℃ → + 125 ℃
	100 MΩ ≦ R ＜ 1 GΩ	± 500
	1 GΩ ≦ R ≦ 150 GΩ	- 2000 ≦ αT ≦ 0

Voltage coefficient

Model	Range of resistance values	Voltage coefficient αν [%/V]	Test method
HC3A HC2A	1 MΩ ≦ R ≦ 100 MΩ	- 0.01 ≦ αν ＜ 0	DC 5 V → DC 15 V
	100 MΩ ＜ R ≦ 1 GΩ	- 0.05 ≦ αν ＜ 0
	1 GΩ ＜ R ≦ 10 GΩ	- 0.2 ≦ αν ＜ 0
	10 GΩ ＜ R ≦ 150 GΩ	- 1.0 ≦ αν ＜ 0
HC2B	1 MΩ ≦ R ≦ 350 MΩ	- 0.05 ≦ αν ＜ 0	DC 5 V → DC 15 V
	350 MΩ ＜ R ≦ 1 GΩ	- 0.25 ≦ αν ＜ 0
	1 GΩ ＜ R ≦ 10 GΩ	- 0.5 ≦ αν ＜ 0
	10 GΩ ＜ R ≦ 150 GΩ	- 1.0 ≦ αν ＜ 0
HC2C	1 MΩ ≦ R ≦ 100 MΩ	- 0.1 ≦ αν ＜ 0	DC 5 V → DC 15 V
	100 MΩ ＜ R ≦ 1 GΩ	- 0.5 ≦ αν ＜ 0
	1 GΩ ＜ R ≦ 10 GΩ	- 1.0 ≦ αν ＜ 0
	10 GΩ ＜ R ≦ 150 GΩ	- 2.0 ≦ αν ＜ 0
HC1C	1 MΩ ≦ R ≦ 100 MΩ	- 0.1 ≦ αν ＜ 0	DC 5 V → DC 15 V
	100 MΩ ＜ R ≦ 1 GΩ	- 1.0 ≦ αν ＜ 0
	1 GΩ ＜ R ≦ 150 GΩ	- 2.0 ≦ αν ＜ 0