Vishay IRF840A is a Silicon MOSFET rated at 500V, 8A, 0.85Ω Rdson(max) in TO-220AB

Datasheet

Device Parameter	Value feedback*
Manufacturer Name	Vishay
Manufacturer Package	TO-220AB (Through Hole, 3 Pins, Thermalpad: Bottom WxL: 10.27 x 15.17mm²)
Configuration	Single
Channel	N-Type
Material	Silicon
BVDSS [V]	500
RDS(ON) typ, max [Ω]	na, 0.85 At VGS = 10V, TA = 25°C
ID max [A]	8
PD max [W]	125
QGS typ, max [nC]	na, 9
QGD typ, max [nC]	na, 18
QG Total typ, max [nC]	na, 38
RthJA max [C/W]	62
RthJC max [C/W]	1
DiscoverEE Calculated Values
ID [A] Calc. @RthJA max TJ=150°C, TA=25°C	1.1 (conservative) Approx. value as we assume RDS(on)max @ 150 °C = 2x RDS(on)max @ 25 °C
ID [A] Calc. @ System RthJA = °C/W, TJ=°C, TA=25°C	2.7 (realistic) Approx. value as we assume RDS(on)max @ 150 °C = 2x RDS(on)max @ 25 °C
ID [A] Calc. @RthJC max TJ=150°C, TC=25°C	8.6 (ideal heatsink, Silicon limit) Approx. value as we assume RDS(on)max @ 150 °C = 2x RDS(on)max @ 25 °C
PD [W] Calc. @RthJA max TJ=150°C, TA=25°C	2.0 (conservative)
PD [W] Calc. @ System RthJA = 10 °C/W, TJ=150°C, TA=25°C	12.5 (realistic)
PD [W] Calc. @RthJC max TJ=150°C, TC=25°C	125.0 (ideal heatsink)

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BV_DSS [V]	Package	R_DS(ON) max [Ω]	V_TH [V]	I_D [A]	P_D [W]	Q_{G Total} [nC]	Q_GS [nC]	Q_GD [nC]
500	Through Hole WxL: 10.24 x 15.09mm² # of Pins: 3 Thermalpad: Bottom	0.555	3, 5	12	208	48	12	15
500	Through Hole WxL: 10.50 x 16.00mm² # of Pins: 3 Thermalpad: None	0.555	3, 5	12	36	48	12	15
550	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.57	2, 4	12	45	28	18	10
525	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.58	2, 4	12	45	25	16	9
500	Through Hole WxL: 10.00 x 15.65mm² # of Pins: 3 Thermalpad: Bottom	0.6	2.1, 3.9	7.6	32	32	3	17
500	Through Hole WxL: 10.16 x 15.00mm² # of Pins: 3 Thermalpad: None	0.6	3, 5	6.3	30.9	9.5	4.2	2.8
500	Through Hole WxL: 10.00 x 15.65mm² # of Pins: 3 Thermalpad: Bottom	0.6	2.1, 3.9	7.6	83	32	3	17
500	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.6	2, 4	11	45	24	16	8
500	Through Hole WxL: 10.08 x 15.60mm² # of Pins: 3 Thermalpad: Bottom	0.6	3.5, 5	6.3	74	9.5	4.2	2.8
500	Through Hole WxL: 10.30 x 15.90mm² # of Pins: 3 Thermalpad: None	0.61	2, 4	10	48	56	7.5	18.5
500	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.62	3, 4.5	12	30	29	5.5	13
500	Through Hole WxL: 10.10 x 16.00mm² # of Pins: 3 Thermalpad: Bottom	0.62	2, 4	13	179	33	9.7	11
500	Through Hole WxL: 10.10 x 15.87mm² # of Pins: 3 Thermalpad: None	0.62	2, 4	13	30	33	9.7	11
500	Through Hole WxL: 10.16 x 15.87mm² # of Pins: 3 Thermalpad: None	0.62	3, 4.5	12	30	29	5.5	13
450	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.62	2, 4	11	40	20	13	7
550	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.63	2, 4	11	45	25	16	9
500	Through Hole WxL: 10.16 x 15.10mm² # of Pins: 3 Thermalpad: Bottom	0.65	3, 5	11.5	165	30	6	9
500	Through Hole WxL: 10.30 x 15.90mm² # of Pins: 3 Thermalpad: None	0.65	3, 5	11.5	42	30	6	9
500	Through Hole WxL: 10.67 x 15.49mm² # of Pins: 3 Thermalpad: Bottom	0.65	3, 5	11.5	165	30	6	9
450	Through Hole WxL: 10.30 x 15.00mm² # of Pins: 3 Thermalpad: None	0.65	3.5, 4.5	10	50
500	Through Hole WxL: 10.16 x 15.80mm² # of Pins: 3 Thermalpad: None	0.65	2, 4	11.5	42	19.3	4.6	6.1
500	Through Hole WxL: 10.16 x 15.80mm² # of Pins: 3 Thermalpad: None	0.65	3, 5	11.5	42	22.7	7.7	8.7
500	Through Hole WxL: 10.33 x 15.91mm² # of Pins: 3 Thermalpad: None	0.65	2.5, 3.5	9	27.2	15	1.8	8.1
500	Through Hole WxL: 10.20 x 16.04mm² # of Pins: 3 Thermalpad: None	0.685	2, 4	9	34.7	46.4	6	11
500	Through Hole WxL: 10.16 x 15.87mm² # of Pins: 3 Thermalpad: None	0.69	2.5, 4	4	23	8.6	1.8	3.4
500	Through Hole WxL: 10.00 x 15.90mm² # of Pins: 3 Thermalpad: Bottom	0.69	2.5, 4	4	28	8.6	1.8	3.4
500	Through Hole WxL: 10.30 x 15.90mm² # of Pins: 3 Thermalpad: None	0.7	3, 5	11.5	42	30	6	9
500	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.7	2, 4	12	30	27.8	4.9	14.4
500	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.7	2, 4	12	30	27.8	4.9	14.4
500	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.7	2, 4	12	30	27.8	4.9	14.4
500	Through Hole WxL: 10.16 x 15.87mm² # of Pins: 3 Thermalpad: None	0.7	2.5, 4	4	23	8.9	1.8	4
500	Through Hole WxL: 10.00 x 15.90mm² # of Pins: 3 Thermalpad: Bottom	0.7	2.5, 4	4	28	8.9	1.8	4
500	Through Hole WxL: 10.16 x 15.87mm² # of Pins: 3 Thermalpad: None	0.705	2, 4	10	48	31	5	11
500	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.72	2, 4	10	45	20	13	7
550	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.72	2, 4	10	45	24	16	8
500	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.73	2.5, 4.5	12	45	30	16	14
500	Through Hole WxL: 10.16 x 15.91mm² # of Pins: 3 Thermalpad: None	0.75	2, 4	10	40	30	7.7	12
500	Through Hole WxL: 10.10 x 15.50mm² # of Pins: 3 Thermalpad: Bottom	0.75	2, 4	8	110	28	7	11
500	Through Hole WxL: 10.16 x 15.91mm² # of Pins: 3 Thermalpad: None	0.75	2, 4	8	45	28	7	11
500	Through Hole WxL: 10.10 x 15.50mm² # of Pins: 3 Thermalpad: Bottom	0.75	2, 4	10	130	32	7.9	12
500	Through Hole WxL: 10.16 x 15.91mm² # of Pins: 3 Thermalpad: None	0.75	2, 4	10	40	32	7.9	12
500	Through Hole WxL: 10.10 x 15.50mm² # of Pins: 3 Thermalpad: Bottom	0.75	2, 4	8	110	28	7	11
500	Through Hole WxL: 10.16 x 15.91mm² # of Pins: 3 Thermalpad: None	0.75	2, 4	8	45	28	7	11
500	Through Hole WxL: 10.16 x 15.87mm² # of Pins: 3 Thermalpad: None	0.75	2.5, 4.2	10	50	35	4.8	9.5
500	Through Hole WxL: 10.16 x 15.80mm² # of Pins: 3 Thermalpad: None	0.75	2.5, 4.5	7	165	26	7	7.5
450	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.77	2, 4	9	40	16	10	6
500	Through Hole WxL: 10.20 x 15.50mm² # of Pins: 3 Thermalpad: Bottom	0.79	2, 4	5	45	14	3	7
500	Through Hole WxL: 10.20 x 16.15mm² # of Pins: 3 Thermalpad: None	0.79	2, 4	5	20	14	3	7
500	Through Hole WxL: 10.30 x 15.90mm² # of Pins: 3 Thermalpad: None	0.8	3, 5	10	42	30	6	9
500	Through Hole WxL: 10.00 x 15.40mm² # of Pins: 3 Thermalpad: Bottom	0.8	3, 5	8	180	13	4	5
500	Through Hole WxL: 10.33 x 15.91mm² # of Pins: 3 Thermalpad: None	0.8	2.5, 3.5	7.6	26.4	12.4	1.5	6.8
500	Through Hole WxL: 10.00 x 15.40mm² # of Pins: 3 Thermalpad: Bottom	0.8	3, 5.5	8	150	20	7	7
500	Through Hole WxL: 10.16 x 15.87mm² # of Pins: 3 Thermalpad: None	0.81	3, 5	8	28	19	4.4	3.4
500	Through Hole WxL: 10.16 x 15.87mm² # of Pins: 3 Thermalpad: None	0.81	3, 5	8	38	19	4.4	3.4
500	Through Hole WxL: 10.10 x 15.10mm² # of Pins: 3 Thermalpad: None	0.84	2, 4	9	51	18	3.5	5.5
500	Through Hole WxL: 10.16 x 15.87mm² # of Pins: 3 Thermalpad: None	0.85	3.4, 4.5	9	38.5	28	6.2	12.7
500	Through Hole WxL: 10.50 x 16.00mm² # of Pins: 3 Thermalpad: None	0.85	2, 4	4.5	40	39	10	19
500	Through Hole WxL: 10.24 x 15.09mm² # of Pins: 3 Thermalpad: Bottom	0.85	2, 4	8	125	63	9.3	32
500	Through Hole WxL: 10.24 x 15.09mm² # of Pins: 3 Thermalpad: Bottom	0.85	2, 4	8	125	63	9.3	32
500	Through Hole WxL: 10.03 x 15.44mm² # of Pins: 3 Thermalpad: Bottom	0.85	3.4, 4.5	9	192	28	6.2	12.7
500	Through Hole WxL: 10.03 x 15.44mm² # of Pins: 3 Thermalpad: Bottom	0.85	3.4, 4.5	9	192	28	6.2	12.7
500	Through Hole WxL: 10.16 x 15.05mm² # of Pins: 3 Thermalpad: Bottom	0.85	2, 4	8	2	63	9.3	32
500	Through Hole WxL: 10.16 x 15.10mm² # of Pins: 3 Thermalpad: Bottom	0.85	3, 5	8	130	18	4	6
500	Through Hole WxL: 10.20 x 15.50mm² # of Pins: 3 Thermalpad: Bottom	0.85	3, 4.5	7.2	110	32	6	18
500	Through Hole WxL: 10.30 x 15.90mm² # of Pins: 3 Thermalpad: None	0.85	3, 5	9	42	24	5	7.5
500	Through Hole WxL: 10.24 x 15.09mm² # of Pins: 3 Thermalpad: Bottom	0.85	2, 4	8	125	63	9.3	32
500	Through Hole WxL: 10.24 x 15.09mm² # of Pins: 3 Thermalpad: Bottom	0.85	2, 4	8	125	38	9	18
500	Through Hole WxL: 10.20 x 16.15mm² # of Pins: 3 Thermalpad: None	0.85	3, 4.5	7.2	30	32	6	18
500	Through Hole WxL: 10.24 x 15.09mm² # of Pins: 3 Thermalpad: Bottom	0.85	3, 5	8.7	156	30	4	7
500	Through Hole WxL: 10.24 x 15.09mm² # of Pins: 3 Thermalpad: Bottom	0.85	2, 4	8	125	39	10	19
500	Through Hole WxL: 10.50 x 16.00mm² # of Pins: 3 Thermalpad: None	0.85	2, 4	4.5	40	39	10	19
500	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.85	2, 4	8	40	16	10	6
500	Through Hole WxL: 10.67 x 15.49mm² # of Pins: 3 Thermalpad: Bottom	0.85	2, 4	8	125	63	9.3	32
500	Through Hole WxL: 10.50 x 16.00mm² # of Pins: 3 Thermalpad: None	0.85	3, 5	8.7	33	30	4	7
500	Through Hole WxL: 10.24 x 15.09mm² # of Pins: 3 Thermalpad: Bottom	0.85	2, 4	8	125	39	10	19
500	Through Hole WxL: 10.30 x 15.90mm² # of Pins: 3 Thermalpad: None	0.85	3, 5	8	40.3	18	4	6
500	Through Hole WxL: 10.16 x 15.87mm² # of Pins: 3 Thermalpad: None	0.85	3, 5	10	29.5	23	3	10
500	Through Hole WxL: 10.00 x 15.70mm² # of Pins: 3 Thermalpad: Bottom	0.85	2, 4	8	134
500	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.85	2, 4	8	44
500	Through Hole WxL: 10.30 x 15.00mm² # of Pins: 3 Thermalpad: None	0.85	2, 4	4.6	40	74	9	27
500	Through Hole WxL: 10.50 x 16.00mm² # of Pins: 3 Thermalpad: None	0.85	2, 4	4.6	40	67	10	34
525	Through Hole WxL: 10.20 x 16.15mm² # of Pins: 3 Thermalpad: None	0.85	3, 4.5	6	90	33	6	21
500	Through Hole WxL: 10.16 x 15.80mm² # of Pins: 3 Thermalpad: None	0.85	2, 4	9	38	15.7	3.4	5.3
500	Through Hole WxL: 10.16 x 15.80mm² # of Pins: 3 Thermalpad: None	0.85	3, 5	9	38	19	5.7	7.6
525	Through Hole WxL: 10.20 x 15.50mm² # of Pins: 3 Thermalpad: Bottom	0.85	3, 4.5	6	90	33	6	21
500	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.85	3, 4	8	35	25	4	11
500	Through Hole WxL: 10.24 x 15.09mm² # of Pins: 3 Thermalpad: Bottom	0.85	2, 4	8	125	39	10	19
500	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.85	3, 5	10	29.5	23	3	10
500	Through Hole WxL: 10.50 x 16.00mm² # of Pins: 3 Thermalpad: None	0.85	2, 4	4.6	40	67	10	34
500	Through Hole WxL: 10.30 x 15.90mm² # of Pins: 3 Thermalpad: None	0.85	2, 4	9	44	35	4	15
500	Through Hole WxL: 10.24 x 15.09mm² # of Pins: 3 Thermalpad: Bottom	0.85	3, 5	8.7	156	30	4	7
500	Through Hole WxL: 10.24 x 15.09mm² # of Pins: 3 Thermalpad: Bottom	0.85	2, 4	8	125	38	9	18
500	Through Hole WxL: 10.50 x 16.00mm² # of Pins: 3 Thermalpad: None	0.85	2, 4	4.6	40	67	10	34
500	Through Hole WxL: 10.16 x 15.87mm² # of Pins: 3 Thermalpad: None	0.85	3.4, 4.5	9	38.5	28	6.2	12.7
500	Through Hole WxL: 10.24 x 15.09mm² # of Pins: 3 Thermalpad: Bottom	0.85	2, 4	7.3	125	39	9	12
550	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.86	2, 4	8.5	40	20	13	7
500	Through Hole WxL: 10.16 x 15.87mm² # of Pins: 3 Thermalpad: None	0.88	2, 4	9	37	28	4.5	12
500	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.9	2.5, 3.8	9	50	24.5	5	8.3
500	Through Hole WxL: 10.16 x 15.87mm² # of Pins: 3 Thermalpad: None	0.9	2, 4	8	49	14.7	5.6	4.4
450	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.9	2.4, 4.4	8	35	16	10	6
500	Through Hole WxL: 10.10 x 15.50mm² # of Pins: 3 Thermalpad: Bottom	0.9	2, 4	8	100	24	5	9
500	Through Hole WxL: 10.16 x 15.91mm² # of Pins: 3 Thermalpad: None	0.9	2, 4	8	35	24	5	9
500	Through Hole WxL: 9.90 x 15.70mm² # of Pins: 3 Thermalpad: Bottom	0.9	2, 3	7	60
500	Through Hole WxL: 9.90 x 15.70mm² # of Pins: 3 Thermalpad: Bottom	0.9	2, 3	7	60
500	Through Hole WxL: 10.25 x 14.90mm² # of Pins: 3 Thermalpad: Bottom	0.9	2, 4	8	134	16.2	5.2	5.2
500	Through Hole WxL: 10.16 x 15.87mm² # of Pins: 3 Thermalpad: None	0.9	2, 4	8	49	16.2	5.2	5.2
500	Through Hole WxL: 10.16 x 15.91mm² # of Pins: 3 Thermalpad: None	0.9	2, 4	8	34	21.5	4.8	9
500	Through Hole WxL: 10.10 x 15.50mm² # of Pins: 3 Thermalpad: Bottom	0.9	2, 4	8	118	21.5	4.8	9
500	Through Hole WxL: 10.30 x 15.00mm² # of Pins: 3 Thermalpad: None	0.9	3.5, 4.5	10	50
500	Through Hole WxL: 10.16 x 15.80mm² # of Pins: 3 Thermalpad: None	0.9	2, 4	7	36	14.9	3.3	5.1
500	Through Hole WxL: 10.16 x 15.80mm² # of Pins: 3 Thermalpad: None	0.9	3, 5	7	36	17.5	5	6.5
500	Through Hole WxL: 10.16 x 15.37mm² # of Pins: 3 Thermalpad: Bottom	0.9	3, 5	7	114	17.5	5	6.5
500	Through Hole WxL: 10.16 x 15.10mm² # of Pins: 3 Thermalpad: Bottom	0.9	3, 5	7	89	16.6	3.7	5.8
500	Through Hole WxL: 10.10 x 16.00mm² # of Pins: 3 Thermalpad: Bottom	0.95	2, 4	9	114	24	6.7	7.2
500	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	0.95	2.5, 3.5	7	30	21	5	8
500	Through Hole WxL: 10.33 x 15.91mm² # of Pins: 3 Thermalpad: None	0.95	2.5, 3.5	6.6	25.7	10.5	1.3	5.9
500	Through Hole WxL: 10.33 x 15.91mm² # of Pins: 3 Thermalpad: None	0.95	2.1, 3.9	4.5	31	22	2.2	10
500	Through Hole WxL: 10.10 x 15.87mm² # of Pins: 3 Thermalpad: None	0.97	2, 4	9	28	24	6.7	7.2
500	Through Hole WxL: 10.16 x 15.80mm² # of Pins: 3 Thermalpad: None	0.97	2.5, 4.5	8	38	16.3	5.8	6.1
500	Through Hole WxL: 10.16 x 15.37mm² # of Pins: 3 Thermalpad: Bottom	0.97	2.5, 4.5	8	119	16.3	5.8	6.1
500	Through Hole WxL: 10.20 x 16.04mm² # of Pins: 3 Thermalpad: None	1	2, 4	7	32.8	34.4	3.5	8.5
500	Through Hole WxL: 10.50 x 16.00mm² # of Pins: 3 Thermalpad: None	1	3, 5	8	40	34	7.8	10.4
500	Through Hole WxL: 10.30 x 15.90mm² # of Pins: 3 Thermalpad: None	1	3, 5	7	40	18	4	6
500	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	1.04	2.4, 4.4	7.5	35	16	10	6
550	Through Hole WxL: 10.30 x 15.90mm² # of Pins: 3 Thermalpad: None	1.05	3, 5	8	42	24	5	7.5
550	Through Hole WxL: 10.00 x 15.00mm² # of Pins: 3 Thermalpad: None	1.07	2, 4	7.5	40	16	10	6
500	Through Hole WxL: 10.00 x 15.40mm² # of Pins: 3 Thermalpad: Bottom	1.1	3, 5	6	100	14.6	4.8	5.6

Additional Resources

Vishay IRF840A is a Silicon MOSFET rated at 500V, 8A, 0.85Ω Rdson(max) in TO-220AB

Datasheet

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