ST1 Series

High voltage stacked capacitors with wire leads and a voltage range of 6 to 12 kV and 250 to 1000 pF per disc. Available as standard parts with 4 to 12 stages.

As dielectrics have different temperature coefficients, to choose the best for requirements, please refer to the dielectric curve information and browse the tables below.

Click on each of the dielectric curve images to view at full size

If you have certain specification requirements for capacitor stacks , please complete a copy of the questionnaire here.

We can also help you with a multiplier design. For specification requirements for voltage multiplier stacks, please complete a copy of the questionnaire here.

Please email your completed questionnaires to sales@ppm.co.uk.

If you have bespoke requests or to find out more, call us on +44 (0)1793 784389 to speak to our technical sales team.

ST1 Diagram

Y5P Dielectric

Part #	C (pF)	Tol. (%)	Material	VRATE (V)	VWITHSTAND (V)	No. of Discs	L (mm)	D (mm)	T (mm)	A (mm)
ST1Y5P251M10KV04	250	20	Y5P	10000	15000	4	19.9	6.5	4.4	70
ST1Y5P251M10KV05	250	20	Y5P	10000	15000	5	24.7	6.5	4.4	70
ST1Y5P251M10KV06	250	20	Y5P	10000	15000	6	29.5	6.5	4.4	70
ST1Y5P251M10KV07	250	20	Y5P	10000	15000	7	34.3	6.5	4.4	70
ST1Y5P251M10KV08	250	20	Y5P	10000	15000	8	39.1	6.5	4.4	70
ST1Y5P251M10KV09	250	20	Y5P	10000	15000	9	43.9	6.5	4.4	70
ST1Y5P251M10KV10	250	20	Y5P	10000	15000	10	48.7	6.5	4.4	70
ST1Y5P251M10KV11	250	20	Y5P	10000	15000	11	53.4	6.5	4.4	70
ST1Y5P251M10KV12	250	20	Y5P	10000	15000	12	58.2	6.5	4.4	70
ST1Y5P251M12KV04	250	20	Y5P	12000	18000	4	22	6.9	4.9	70
ST1Y5P251M12KV05	250	20	Y5P	12000	18000	5	27.4	6.9	4.9	70
ST1Y5P251M12KV06	250	20	Y5P	12000	18000	6	32.7	6.9	4.9	70
ST1Y5P251M12KV07	250	20	Y5P	12000	18000	7	38	6.9	4.9	70
ST1Y5P251M12KV08	250	20	Y5P	12000	18000	8	43.4	6.9	4.9	70
ST1Y5P251M12KV09	250	20	Y5P	12000	18000	9	48.7	6.9	4.9	70
ST1Y5P251M12KV10	250	20	Y5P	12000	18000	10	54	6.9	4.9	70
ST1Y5P251M12KV11	250	20	Y5P	12000	18000	11	59.4	6.9	4.9	70
ST1Y5P251M12KV12	250	20	Y5P	12000	18000	12	64.7	6.9	4.9	70
ST1Y5P501M6KV04	500	20	Y5P	6000	9000	4	10.5	6.2	2.3	70
ST1Y5P501M6KV05	500	20	Y5P	6000	9000	5	12.9	6.2	2.3	70
ST1Y5P501M6KV06	500	20	Y5P	6000	9000	6	15.4	6.2	2.3	70
ST1Y5P501M6KV07	500	20	Y5P	6000	9000	7	17.8	6.2	2.3	70
ST1Y5P501M6KV08	500	20	Y5P	6000	9000	8	20.3	6.2	2.3	70
ST1Y5P501M6KV09	500	20	Y5P	6000	9000	9	22.7	6.2	2.3	70
ST1Y5P501M6KV10	500	20	Y5P	6000	9000	10	25.2	6.2	2.3	70
ST1Y5P501M6KV11	500	20	Y5P	6000	9000	11	27.6	6.2	2.3	70
ST1Y5P501M6KV12	500	20	Y5P	6000	9000	12	30	6.2	2.3	70
ST1Y5P501M8KV04	500	20	Y5P	8000	12000	4	13	7.1	2.9	70
ST1Y5P501M8KV05	500	20	Y5P	8000	12000	5	16.1	7.1	2.9	70
ST1Y5P501M8KV06	500	20	Y5P	8000	12000	6	19.1	7.1	2.9	70
ST1Y5P501M8KV07	500	20	Y5P	8000	12000	7	22.2	7.1	2.9	70
ST1Y5P501M8KV08	500	20	Y5P	8000	12000	8	25.3	7.1	2.9	70
ST1Y5P501M8KV09	500	20	Y5P	8000	12000	9	28.3	7.1	2.9	70
ST1Y5P501M8KV10	500	20	Y5P	8000	12000	10	31.4	7.1	2.9	70
ST1Y5P501M8KV11	500	20	Y5P	8000	12000	11	34.5	7.1	2.9	70
ST1Y5P501M8KV12	500	20	Y5P	8000	12000	12	37.6	7.1	2.9	70
ST1Y5P501M10KV04	500	20	Y5P	10000	15000	4	18.9	8.9	4.2	70
ST1Y5P501M10KV05	500	20	Y5P	10000	15000	5	23.4	8.9	4.2	70
ST1Y5P501M10KV06	500	20	Y5P	10000	15000	6	28	8.9	4.2	70
ST1Y5P501M10KV07	500	20	Y5P	10000	15000	7	32.5	8.9	4.2	70
ST1Y5P501M10KV08	500	20	Y5P	10000	15000	8	37	8.9	4.2	70
ST1Y5P501M10KV09	500	20	Y5P	10000	15000	9	41.6	8.9	4.2	70
ST1Y5P501M10KV10	500	20	Y5P	10000	15000	10	46.1	8.9	4.2	70
ST1Y5P501M10KV11	500	20	Y5P	10000	15000	11	50.7	8.9	4.2	70
ST1Y5P501M10KV12	500	20	Y5P	10000	15000	12	55.2	8.9	4.2	70
ST1Y5P501M12KV04	500	20	Y5P	12000	18000	4	21.9	10	4.9	70
ST1Y5P501M12KV05	500	20	Y5P	12000	18000	5	27.2	10	4.9	70
ST1Y5P501M12KV06	500	20	Y5P	12000	18000	6	32.5	10	4.9	70
ST1Y5P501M12KV07	500	20	Y5P	12000	18000	7	37.8	10	4.9	70
ST1Y5P501M12KV08	500	20	Y5P	12000	18000	8	43.1	10	4.9	70
ST1Y5P501M12KV09	500	20	Y5P	12000	18000	9	48.4	10	4.9	70
ST1Y5P501M12KV10	500	20	Y5P	12000	18000	10	53.7	10	4.9	70
ST1Y5P501M12KV11	500	20	Y5P	12000	18000	11	59	10	4.9	70
ST1Y5P501M12KV12	500	20	Y5P	12000	18000	12	64.3	10	4.9	70
ST1Y5P102M6KV04	1000	20	Y5P	6000	9000	4	10.7	8.7	2.3	70
ST1Y5P102M6KV05	1000	20	Y5P	6000	9000	5	13.1	8.7	2.3	70
ST1Y5P102M6KV06	1000	20	Y5P	6000	9000	6	15.6	8.7	2.3	70
ST1Y5P102M6KV07	1000	20	Y5P	6000	9000	7	18.1	8.7	2.3	70
ST1Y5P102M6KV08	1000	20	Y5P	6000	9000	8	20.6	8.7	2.3	70
ST1Y5P102M6KV09	1000	20	Y5P	6000	9000	9	23.1	8.7	2.3	70
ST1Y5P102M6KV10	1000	20	Y5P	6000	9000	10	25.6	8.7	2.3	70
ST1Y5P102M6KV11	1000	20	Y5P	6000	9000	11	28.1	8.7	2.3	70
ST1Y5P102M6KV12	1000	20	Y5P	6000	9000	12	30.6	8.7	2.3	70
ST1Y5P102M8KV04	1000	20	Y5P	8000	12000	4	12.7	9.9	2.8	70
ST1Y5P102M8KV05	1000	20	Y5P	8000	12000	5	15.7	9.9	2.8	70
ST1Y5P102M8KV06	1000	20	Y5P	8000	12000	6	18.7	9.9	2.8	70
ST1Y5P102M8KV07	1000	20	Y5P	8000	12000	7	21.7	9.9	2.8	70
ST1Y5P102M8KV08	1000	20	Y5P	8000	12000	8	24.7	9.9	2.8	70
ST1Y5P102M8KV09	1000	20	Y5P	8000	12000	9	27.6	9.9	2.8	70
ST1Y5P102M8KV10	1000	20	Y5P	8000	12000	10	30.6	9.9	2.8	70
ST1Y5P102M8KV11	1000	20	Y5P	8000	12000	11	33.6	9.9	2.8	70
ST1Y5P102M8KV12	1000	20	Y5P	8000	12000	12	36.6	9.9	2.8	70

Z5U Dielectric

Part #	C (pF)	Tol. (%)	Material	VRATE (V)	VWITHSTAND (V)	No. of Discs	L (mm)	D (mm)	T (mm)	A (mm)
ST1Z5U251M10KV04	250	20	Z5U	10000	15000	4	19.3	6.5	4.2	70
ST1Z5U251M10KV05	250	20	Z5U	10000	15000	5	23.9	6.5	4.2	70
ST1Z5U251M10KV06	250	20	Z5U	10000	15000	6	28.5	6.5	4.2	70
ST1Z5U251M10KV07	250	20	Z5U	10000	15000	7	33.2	6.5	4.2	70
ST1Z5U251M10KV08	250	20	Z5U	10000	15000	8	37.8	6.5	4.2	70
ST1Z5U251M10KV09	250	20	Z5U	10000	15000	9	42.5	6.5	4.2	70
ST1Z5U251M10KV10	250	20	Z5U	10000	15000	10	47.1	6.5	4.2	70
ST1Z5U251M10KV11	250	20	Z5U	10000	15000	11	51.8	6.5	4.2	70
ST1Z5U251M10KV12	250	20	Z5U	10000	15000	12	56.4	6.5	4.2	70
ST1Z5U251M12KV04	250	20	Z5U	12000	18000	4	21.7	7	4.8	70
ST1Z5U251M12KV05	250	20	Z5U	12000	18000	5	27	7	4.8	70
ST1Z5U251M12KV06	250	20	Z5U	12000	18000	6	32.2	7	4.8	70
ST1Z5U251M12KV07	250	20	Z5U	12000	18000	7	37.5	7	4.8	70
ST1Z5U251M12KV08	250	20	Z5U	12000	18000	8	42.7	7	4.8	70
ST1Z5U251M12KV09	250	20	Z5U	12000	18000	9	48	7	4.8	70
ST1Z5U251M12KV10	250	20	Z5U	12000	18000	10	53.3	7	4.8	70
ST1Z5U251M12KV11	250	20	Z5U	12000	18000	11	58.5	7	4.8	70
ST1Z5U251M12KV12	250	20	Z5U	12000	18000	12	63.8	7	4.8	70
ST1Z5U102M10KV04	500	20	Z5U	10000	15000	4	19.9	7.6	4.3	70
ST1Z5U102M10KV05	500	20	Z5U	10000	15000	5	24.7	7.6	4.3	70
ST1Z5U102M10KV06	500	20	Z5U	10000	15000	6	29.4	7.6	4.3	70
ST1Z5U102M10KV07	500	20	Z5U	10000	15000	7	34.2	7.6	4.3	70
ST1Z5U102M10KV08	500	20	Z5U	10000	15000	8	39	7.6	4.3	70
ST1Z5U102M10KV09	500	20	Z5U	10000	15000	9	43.8	7.6	4.3	70
ST1Z5U102M10KV10	500	20	Z5U	10000	15000	10	48.6	7.6	4.3	70
ST1Z5U102M10KV11	500	20	Z5U	10000	15000	11	53.4	7.6	4.3	70
ST1Z5U102M10KV12	500	20	Z5U	10000	15000	12	58.2	7.6	4.3	70
ST1Z5U102M12KV04	500	20	Z5U	12000	18000	4	22.5	8	4.9	70
ST1Z5U102M12KV05	500	20	Z5U	12000	18000	5	27.9	8	4.9	70
ST1Z5U102M12KV06	500	20	Z5U	12000	18000	6	33.4	8	4.9	70
ST1Z5U102M12KV07	500	20	Z5U	12000	18000	7	38.8	8	4.9	70
ST1Z5U102M12KV08	500	20	Z5U	12000	18000	8	44.3	8	4.9	70
ST1Z5U102M12KV09	500	20	Z5U	12000	18000	9	49.7	8	4.9	70
ST1Z5U102M12KV10	500	20	Z5U	12000	18000	10	55.2	8	4.9	70
ST1Z5U102M12KV11	500	20	Z5U	12000	18000	11	60.6	8	4.9	70
ST1Z5U102M12KV12	500	20	Z5U	12000	18000	12	66.1	8	4.9	70