HO-RI82 high-voltage bleeder resistors

Flat bleeder type, 0.25 W to 100 W, up to 40 kV

0.25–100 W · withstanding up to 4–40 kV

HO-RI82 high-voltage bleeder resistors — HO-RI82

Flat high-voltage resistor range — assorted bodies, coatings and terminations

The HO-RI82 series is the bleeder-market variant of the flat high-voltage family: the same 96% alumina substrate and glass-glaze element, specified by power rating rather than body size so that a 0.25 W through 100 W part can be selected directly from the load calculation. Body lengths run from 10 mm to 180 mm and withstanding voltages from 4 kV to 40 kV. Resistance range is 1 Ω to 100 GΩ, making the series suitable for bleeder and discharge duty as well as general voltage division.

Materials

Substrate	96% Al₂O₃ alumina ceramic
Resistive element	Glass-glaze resistance film
Termination / leads	Tinned copper
Encapsulation	Resin
Operating medium	Air (see notes — rating improves substantially when oil-immersed or resin-potted)

Encapsulation: resin.

Notes on ratings

Withstanding voltage is measured in air. Immersed in transformer or capacitor insulating oil, or potted in high-grade insulating resin, the withstanding voltage rises by more than 3×.
Where both a rated voltage and the maximum working voltage are given, use the lower of the two.
Pulse peak power must stay below 100× the rated power.

Specification — HO-RI82

27 body sizes. Values are the manufacturer figures, reproduced in full.

Type	Rated power (W)	Height (mm)	Length (mm)	Resistance range	Withstanding (V_R)	Tolerance	TCR
RI82-0.25	0.25	4	10	1R–100G	4,000	F G J K	±100
RI82-0.25	0.25	4	13	1R–100G	5,000	F G J K	±100
RI82-0.25	0.25	4	15	1R–100G	7,000	F G J K	±100
RI82-0.5	0.5	5	15	1R–100G	7,000	F G J K	±100
RI82-0.5	0.5	4	19	1R–100G	8,000	F G J K	±100
RI82-0.5	0.5	4	22	1R–100G	10,000	F G J K	±100
RI82-1	1	5	25	1R–100G	15,000	F G J K	±100
RI82-1.5	1.5	5	40	1R–100G	20,000	F G J K	±100
RI82-1.5	1.5	6	27	1R–100G	15,000	F G J K	±100
RI82-1.5	1.5	7	26	1R–100G	15,000	F G J K	±100
RI82-1.5	1.5	10	20	1R–100G	10,000	F G J K	±100
RI82-2	2	8	30	1R–100G	15,000	F G J K	±100
RI82-2	2	10	25	1R–100G	15,000	F G J K	±100
RI82-2	2	8	33	1R–100G	15,000	F G J K	±100
RI82-2	2	8	40	1R–100G	20,000	F G J K	±100
RI82-2	2	6	50	1R–100G	20,000	F G J K	±100
RI82-3	3	8	52	1R–100G	20,000	F G J K	±100
RI82-3	3	15	38	1R–100G	18,000	F G J K	±100
RI82-5	5	10	50	1R–100G	20,000	F G J K	±100
RI82-8	8	15	50	1R–100G	20,000	F G J K	±100
RI82-10	10	20	75	1R–100G	25,000	F G J K	±100
RI82-15	15	20	90	1R–100G	30,000	F G J K	±100
RI82-20	20	25	100	1R–100G	30,000	F G J K	±100
RI82-25	25	30	100	1R–100G	30,000	F G J K	±100
RI82-30	30	35	120	1R–100G	35,000	F G J K	±100
RI82-50	50	40	150	1R–100G	40,000	F G J K	±100
RI82-100	100	60	180	1R–100G	40,000	F G J K	±100

Tolerance codes F = 1%, G = 2%, J = 5%, K = 10%.

Performance

Test items, requirements and methods from the manufacturer specification.

Test item	Performance requirement	Test method
Solderability	Infiltration area ≥ 95%	Solder bath 235 ± 5 °C, 2 s
Terminal strength	ΔR ≤ ±(1%R + 0.05Ω)	10 N, 30 s
Damp heat, steady state	ΔR ≤ ±(5%R + 0.1Ω)	40 ± 2 °C, 93 ± 3%RH, 1000 h
Vibration	ΔR ≤ ±(1%R + 0.05Ω)	10–500 Hz, 0.75 mm or 98 m/s², 6 h
Resistance to soldering heat	ΔR ≤ ±(1%R + 0.05Ω)	260 ± 5 °C, 10 ± 1 s
Fast temperature change	ΔR ≤ ±(1%R + 0.05Ω)	−55 °C 30 min / 125 °C 30 min, 5 cycles
Endurance at 70 °C	ΔR ≤ ±(5%R + 0.1Ω)	70 ± 2 °C, rated power, 1000 h
Short time overload	ΔR ≤ ±(1%R + 0.05Ω)	1.5 V_R, 5 s

Full data sheet reproduced from the manufacturer specification. XYT Electronics supplies these series as an independent distributor; all trademarks are used for identification only.

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