SKT 250

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Line Thyristor (SKT 250)

Features

- Hermetic metal case with glass insulator
- Threaded stud ISO M24×1.5
- High i²t and I_TSM values for easy fusing
- International standard case

Typical Applications

- DC motor control (e.g. for machine tools)
- Controlled rectifiers ( e.g. for battery charging)
- AC controllers (e.g. for temperature control)
- Recommended snubber network e.g. for V_VRMS≤400V: R=33Ω/32W, C=0.47μF

V_RSM	V_RRM, V_DRM	I_TRMS=450A (maximum value for continuous operation) I_TAV=250A(sin.180; T_C=85^oC)
V	V
500	400	SKT 250/04D
900	800	SKT 250/08D
1300	1200	SKT 250/12E
1500	1400	SKT 250/14E
1700	1600	SKT 250/16E

Symbol	Conditions	Values	Units
I_TAV	sin.180; T_c=100(85)^oC	185(250)	A
I_D	K0.55: Ta=45^oC; B2/B6	240/330	A
I_D	K0.55F: Ta=35^oC; B2/B5	490/675	A
I_RMS	K0.55: Ta=45^oC; W1C	265	A
I_TSM	T_vj=25^oC; 10ms	7000	A
I_TSM	T_vj=130^oC; 10ms	6000	A
i²t	T_vj=25^oC; 8.35...10ms	245000	A²S
i²t	T_vj=130^oC; 8.35...10ms	180000	A²S
V_T	T_vj=25^oC; I_T=800A	max. 1.65	V
V_T(TO)	T_vj=130^oC	max. 1	V
r_T	T_vj=130^oC	max. 0.7	mΩ
I_DD; I_RD	T_vj=130^oC; V_RD=V_RRM; V_DD=V_DRM	max. 50	mA
t_gd	T_vj=25^oC; I_G=1A; di_G/dt=1A/μs	1	μs
t_gr	V_D=0.67*V_DRM	2	μs
(di/dt)_cr	T_vj=130^oC	max. 100	A/μs
(dv/dt)_cr	T_vj=130^oC; SKT...D/SKT...E	max. 500/1000	V/μs
t_q	T_vj=130^oC	50...150	μs
I_H	T_vj=25^oC; typ./max.	150/250	mA
I_L	T_vj=25^oC; R_G=33Ω; typ./max.	300/600	mA
V_GT	T_vj=25^oC; d.c.	min.3	V
I_GT	T_vj=25^oC; d.c.	min.200	mA
V_GD	T_vj=130^oC; d.c.	max.0.25	V
I_GD	T_vj=130^oC; d.c.	max.10	mA
R_th(j-c)	cont.	0.11	K/W
R_th(j-c)	sin.180	0.123	K/W
R_th(j-c)	rec.120	0.137	K/W
R_th(c-s)		0.015	K/W
T_vj		-40...+130	^oC
T_stg		-55...+150	^oC
V_isol		-	V~
M_s	to heatsink	60	Nm
a		5*9.81	m/s²
m	approx	490	g
Case		B7

Dimension

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