IC芯片SMC33品牌、价格、PDF参数

farnell • ecia (neda) member • authorized distributor
元器件型号 厂商 描述 farnell # 数量 asia 数量 europe 价格 (gbp)
1.5smc33a littelfuse diode, tvs, 33v, 1.5kw, 5%, uni, smc 1886327 0 3150
1 : £0.55
25 : £0.5
100 : £0.38
250 : £0.33
500 : £0.29
see more
1.5smc33at3g on semiconductor diode, tvs 1611273 3442 583
1 : £0.78
25 : £0.53
100 : £0.36
1smc33at3g on semiconductor tvs diode, 1.5kw, 33v, smc 1155744 3485 3260
1 : £0.269
25 : £0.231
100 : £0.183
250 : £0.158
500 : £0.134
see more
newark • ecia (neda) member • authorized distributor
元器件型号 厂商 描述 newark # 数量 价格
1.5smc33at3g on semiconductor tvs diode, 1.5kw, 33v, smc, cut tape 88h5159 152
1-24 : $.698
25-99 : $.6
100-249 : $.474
250-499 : $.411
500-999 : $.347
1000 or more : $.277
see more
1smc33at3g on semiconductor tvs diode, 1.5kw, 33v, smc, cut tape 88h5167 3260
1-24 : $.698
25-99 : $.6
100-249 : $.474
250-499 : $.411
500-999 : $.347
1000 or more : $.277
see more
1.5smc33a littelfuse diode, tvs, 33v, 1.5kw, 5%, uni, smc, each 41t0906 3150
1-249 : $.669
250-499 : $.504
500-999 : $.448
1000-4999 : $.403
5000 or more : $.367
see more
1.5smc33a littelfuse tvs-diode, 1.5kw, 45.7v, unidirectional, do-214ab, cut tape 31t1609 0
1-9 : $.571
10-99 : $.533
100-249 : $.458
250-499 : $.398
500-999 : $.351
1000-1999 : $.304
2000-3999 : $.224
4000 or more : $.221
see more
1.5smc33ahe3/57t vishay general semiconductor transient voltage suppression diode, cut tape 75r1177 0
1-249 : $.786
250-499 : $.592
500-999 : $.526
1000-4999 : $.473
5000 or more : $.432
see more
1.5smc33ahe3/57t vishay general semiconductor transient voltage suppression diode, tape on reel of 1 09n9779 0
1-99 : $.656
100-499 : $.55
500-999 : $.438
1000-1999 : $.383
2000 or more : $.341
see more
element14 - asia pacific • authorized distributor
元器件型号 厂商 描述 封装14 # 数量 asia 价格 (usd)
1.5smc33a littelfuse diode, tvs, 33v, 1.5kw, 5%, uni, smc 1886327 3150
1 : $0.51
25 : $0.44
1smc33at3g on semiconductor tvs diode, 1.5kw, 33v, smc 1155744 3485
10 : $0.32
100 : $0.3
1.5smc33at3g on semiconductor diode, tvs 1611273 2530
1 : $0.29
10 : $0.27
digi-key • ecia (neda) member • authorized distributor
元器件型号 厂商 描述 digi-key # 数量 价格
1.5smc33a littelfuse inc diode tvs 33v 1500w 5% uni smd 1.5smc33act-nd 28492
cut tape
1 : $0.75
10 : $0.65
100 : $0.513
250 : $0.4446
500 : $0.3762
1000 : $0.2992
see more
1.5smc33a littelfuse inc diode tvs 33v 1500w 5% uni smd 1.5smc33adkr-nd 28492
digi-reel®
1 : $0.75
10 : $0.65
100 : $0.513
250 : $0.4446
500 : $0.3762
1000 : $0.2992
see more
1.5smc33ca littelfuse inc diode tvs 33v 1500w 5% bi smd 1.5smc33cact-nd 34253
cut tape
1 : $0.82
10 : $0.711
100 : $0.561
250 : $0.4862
500 : $0.4114
1000 : $0.3272
see more
1.5smc33 littelfuse inc diode tvs 33v 1500w 10% uni smd 1.5smc33-nd 0
3000 : $0.2407
1.5smc33a littelfuse inc diode tvs 33v 1500w 5% uni smd 1.5smc33atr-nd 27000
tape & reel
3000 : $0.248
6000 : $0.231
12000 : $0.222
27000 : $0.214
1.5smc33a-e3/57t vishay/general semiconductor tvs unidir 1.5kw 33v 5% do-214ab 1.5smc33a-e3/57t-nd 0
1700 : $0.264
1.5smc33a-e3/9at vishay/general semiconductor tvs unidir 1.5kw 33v 5% do-214ab 1.5smc33a-e3/9at-nd 0
3500 : $0.239
1.5smc33ahe3/57t vishay/general semiconductor tvs unidir 1.5kw 33v 5% do-214ab 1.5smc33ahe3/57t-nd 0
1700 : $0.352
1.5smc33ahe3/9at vishay/general semiconductor tvs unidir 1.5kw 33v 5% do-214ab 1.5smc33ahe3/9at-nd 0
3500 : $0.319
1.5smc33at3 on semiconductor tvs zener unidir 1500w 33v smc 1.5smc33at3osct-nd 0
10 : $0.561
100 : $0.4209
250 : $0.3586
500 : $0.2884
1000 : $0.2416
see more
1.5smc33ca littelfuse inc diode tvs 33v 1500w 5% bi smd 1.5smc33cadkr-nd 34253
digi-reel®
1 : $0.82
10 : $0.711
100 : $0.561
250 : $0.4862
500 : $0.4114
1000 : $0.3272
see more
1.5smc33at3g on semiconductor tvs 1500w 33v unidirect smc 1.5smc33at3gostr-nd 7500
tape & reel
2500 : $0.229
5000 : $0.213
10000 : $0.205
25000 : $0.197
1.5smc33at3g on semiconductor tvs zener unidir 1500w 33v smc 1.5smc33at3gosdkr-nd 12500
digi-reel®
1 : $0.69
25 : $0.5368
100 : $0.4737
250 : $0.4106
500 : $0.3474
1000 : $0.2763
see more
1.5smc33at3g on semiconductor tvs zener unidir 1500w 33v smc 1.5smc33at3gosct-nd 12500
cut tape
1 : $0.69
10 : $0.60
100 : $0.4737
250 : $0.4106
500 : $0.3474
1000 : $0.2763
see more
1.5smc33c littelfuse inc diode tvs 33v 1500w 10% bi smd 1.5smc33c-nd 0
3000 : $0.2624
1.5smc33ca littelfuse inc diode tvs 33v 1500w 5% bi smd 1.5smc33catr-nd 33000
tape & reel
3000 : $0.271
6000 : $0.252
12000 : $0.243
27000 : $0.234
1.5smc33ca-e3/57t vishay/general semiconductor tvs bidir 1.5kw 33v 5% do-214ab 1.5smc33ca-e3/57t-nd 0
1700 : $0.311
1.5smc33ca-e3/9at vishay/general semiconductor tvs bidir 1.5kw 33v 5% do-214ab 1.5smc33ca-e3/9at-nd 0
3500 : $0.282
1.5smc33cahe3/57t vishay/general semiconductor tvs bidir 1.5kw 33v 5% do-214ab 1.5smc33cahe3/57t-nd 0
1700 : $0.42
1.5smc33cahe3/9at vishay/general semiconductor tvs bidir 1.5kw 33v 5% do-214ab 1.5smc33cahe3/9at-nd 0
3500 : $0.392
1smc33at3 on semiconductor tvs zener unidir 1500w 33v smc 1smc33at3osct-nd 0
10 : $0.541
100 : $0.4055
250 : $0.3455
500 : $0.2779
1000 : $0.2328
see more
1smc33at3g on semiconductor tvs 1500w 33v unidirect smc 1smc33at3gostr-nd 5000
tape & reel
2500 : $0.229
5000 : $0.213
10000 : $0.205
25000 : $0.197
1smc33at3g on semiconductor tvs zener unidir 1500w 33v smc 1smc33at3gosct-nd 7878
cut tape
1 : $0.69
10 : $0.60
100 : $0.4737
250 : $0.4106
500 : $0.3474
1000 : $0.2763
see more
1smc33at3g on semiconductor tvs zener unidir 1500w 33v smc 1smc33at3gosdkr-nd 7878
digi-reel®
1 : $0.69
25 : $0.5368
100 : $0.4737
250 : $0.4106
500 : $0.3474
1000 : $0.2763
see more
3kasmc33ahe3/57t vishay/general semiconductor tvs 3.0kw 33v 5% do-214ab 3kasmc33ahe3/57t-nd 0
850 : $0.5926
3kasmc33ahe3/9at vishay/general semiconductor tvs 3.0kw 33v 5% do-214ab 3kasmc33ahe3/9at-nd 0
3500 : $0.50
3kasmc33he3/57t vishay/general semiconductor tvs 3.0kw 33v 10% do-214ab 3kasmc33he3/57t-nd 0
850 : $0.5926
3kasmc33he3/9at vishay/general semiconductor tvs 3.0kw 33v 10% do-214ab 3kasmc33he3/9at-nd 0
3500 : $0.50
tpsmc33he3/9at vishay/general semiconductor tvs 1.5kw 33v 10% smc tpsmc33he3/9at-nd 0
3500 : $0.3198
tpsmc33ahe3/57t vishay/general semiconductor tvs 1.5kw 33v 5% smc tpsmc33ahe3/57t-nd 0
1700 : $0.354
tpsmc33ahe3/9at vishay/general semiconductor tvs 1.5kw 33v 5% smc tpsmc33ahe3/9at-nd 0
3500 : $0.3198
tpsmc33he3/57t vishay/general semiconductor tvs 1.5kw 33v 10% smc tpsmc33he3/57t-nd 0
1700 : $0.354
mouser electronics • ecia (neda) member • authorized distributor
mouser electronics product detail pricing availability
mfr. part #: mc33078dgkt
mfr.: texas instruments
description: op amps dual hi-sp lo-noise op amp
rohs: yes
mouser part #: 595-mc33078dgkt
1:  $1.33
25:  $1.05
100:  $0.945
250:  $0.822
500:  $0.581
911
in stock
mfr. part #: mc33078d
mfr.: texas instruments
description: op amps dual hi-sp lo-noise op amp
rohs: yes
mouser part #: 595-mc33078d
1:  $0.96
25:  $0.74
100:  $0.648
250:  $0.564
500:  $0.48
502
in stock
mfr. part #: mc3303d
mfr.: texas instruments
description: op amps quad low power
rohs: yes
mouser part #: 595-mc3303d
1:  $0.99
25:  $0.765
100:  $0.666
250:  $0.58
500:  $0.494
1,846
in stock
mfr. part #: mc33063ap
mfr.: texas instruments
description: dc/dc switching controllers 1.5-a peak boost/ buck/inverting swit
rohs: yes
mouser part #: 595-mc33063ap
1:  $0.67
25:  $0.52
100:  $0.453
250:  $0.394
500:  $0.336
2,442
in stock
mfr. part #: mc33063adrjrg4
mfr.: texas instruments
description: dc/dc switching controllers 1.5a peak boost/buck inverting sw reg
rohs: yes
mouser part #: 595-mc33063adrjrg4
1:  $0.67
25:  $0.51
100:  $0.456
250:  $0.395
500:  $0.334
7,725
in stock
mfr. part #: mc3303pw
mfr.: texas instruments
description: op amps quadruple low-power op amp
rohs: yes
mouser part #: 595-mc3303pw
1:  $0.98
25:  $0.75
100:  $0.664
250:  $0.573
500:  $0.488
150
in stock
mfr. part #: 1.5smc33a
mfr.: littelfuse
description: tvs diodes - transient voltage suppressors 1.5smc33a
rohs: yes
mouser part #: 576-1.5smc33a
1:  $0.64
25:  $0.59
100:  $0.49
250:  $0.43
500:  $0.38
875
in stock
mfr. part #: mc33063ape4
mfr.: texas instruments
description: dc/dc switching controllers 1.5-a peak boost/ buck/inverting swit
rohs: yes
mouser part #: 595-mc33063ape4
1:  $0.66
25:  $0.51
100:  $0.451
250:  $0.39
500:  $0.332
2,659
in stock
mfr. part #: mc33063adr
mfr.: texas instruments
description: dc/dc switching controllers 1.5-a peak boost/ buck/inverting swit
rohs: yes
mouser part #: 595-mc33063adr
1:  $0.67
25:  $0.51
100:  $0.456
250:  $0.395
500:  $0.334
4,977
in stock
mfr. part #: mc33078dr
mfr.: texas instruments
description: op amps dual hi-sp lo-noise op amp
rohs: yes
mouser part #: 595-mc33078dr
1:  $0.71
25:  $0.55
100:  $0.486
250:  $0.421
500:  $0.356
4,215
in stock
mfr. part #: mc3303n
mfr.: texas instruments
description: op amps quad low power
rohs: yes
mouser part #: 595-mc3303n
1:  $0.91
25:  $0.706
100:  $0.615
250:  $0.535
500:  $0.456
1,749
in stock
mfr. part #: 3kasmc33ahe3/57t
mfr.: vishay
description: tvs diodes - transient voltage suppressors 3000w 33v 5% unidir
rohs: yes
mouser part #: 625-3kasmc33ahe3
1:  $1.76
10:  $1.65
100:  $1.54
250:  $1.43
500:  $1.32
750
in stock
mfr. part #: 1.5smc33a-e3/57t
mfr.: vishay
description: tvs diodes - transient voltage suppressors 1500w 33v unidirect
rohs: yes
mouser part #: 625-1.5smc33a-e3
1:  $0.31
10:  $0.28
100:  $0.25
250:  $0.24
500:  $0.23
400
in stock
mfr. part #: 1.5smc33ca-e3/57t
mfr.: vishay
description: tvs diodes - transient voltage suppressors 1500w 33 bidirect
rohs: yes
mouser part #: 625-1.5smc33ca-e3
1:  $0.43
10:  $0.40
100:  $0.37
250:  $0.345
500:  $0.32
1,495
in stock
mfr. part #: mc33063adrjr
mfr.: texas instruments
description: dc/dc switching controllers 1.5-a peak boost/ buck/inverting
rohs: yes
mouser part #: 595-mc33063adrjr
1:  $0.67
25:  $0.51
100:  $0.456
250:  $0.395
500:  $0.334
2,000
in stock
mfr. part #: mc33078dgkr
mfr.: texas instruments
description: op amps dual hi-sp lo-noise op amp
rohs: yes
mouser part #: 595-mc33078dgkr
1:  $0.86
25:  $0.67
100:  $0.593
250:  $0.514
500:  $0.434
1,560
in stock
mfr. part #: mc33063ad
mfr.: texas instruments
description: dc/dc switching controllers 1.5-a peak boost/ buck/inverting swit
rohs: yes
mouser part #: 595-mc33063ad
1:  $0.72
25:  $0.55
100:  $0.485
250:  $0.422
500:  $0.359
4,747
in stock
mfr. part #: mc33078p
mfr.: texas instruments
description: op amps dual hi-sp lo-noise op amp
rohs: yes
mouser part #: 595-mc33078p
1:  $0.88
25:  $0.68
100:  $0.594
250:  $0.517
500:  $0.44
403
in stock
tti • ecia (neda) member • authorized distributor
tti, inc. product information rohs
lead (pb)
pricing availability
mfr. part #: 1.5smc33a-e3/57t
mfr.: vishay
description: tvs diodes - transient voltage suppressors 1500w 33v unidirect
compliant per exemption
pb-free
850:  $0.247700
2,550:  $0.219500
4,250:  $0.198500
3,400
verical • authorized dealer
元器件型号 厂商 描述 rohs 数量 价格
1smc33at3g on semiconductor diode tvs single uni-dir 33v 1.5kw 2-pin smc t/r yes 0
$0.18
1.5smc33a littelfuse diode tvs single uni-dir 28.2v 1.5kw 2-pin do-214ab t/r yes 0
$0.2526
avnet express • ecia (neda) member • authorized distributor
元器件型号 厂商 描述 avnet # 数量 价格
1smc33at3g on semiconductor tvs sgl uni-dir 33v 1.5kw 2pin smc - tape and reel 1smc33at3g 26 wks factory lead time
2500 : $0.2118
5001 : $0.1955
10001 : $0.1816
1.5smc33a-e3/57t vishay / semiconductor tvs sgl uni-dir 28.2v 1.5kw 2pin smc - tape and reel 1.5smc33a-e3/57t 6 wks factory lead time
1700 : $0.2305
1.5smc33at3 rochester electronics zen smc tvs 1.5kw 33v tr - bulk 1.5smc33at3 1 wks factory lead time
2084 : $0.1714
1.5smc33ca-e3/9at vishay / semiconductor tvs sgl bi-dir 28.2v 1.5kw 2pin smc - tape and reel 1.5smc33ca-e3/9at 6 wks factory lead time
3500 : $0.2722
1.5smc33ahe3/57t vishay / semiconductor tvs sgl uni-dir 28.2v 1.5kw 2pin smc - tape and reel 1.5smc33ahe3/57t 6 wks factory lead time
1700 : $0.3099
1.5smc33at3g on semiconductor tvs sgl uni-dir 28.2v 1.5kw 2pin smc - tape and reel 1.5smc33at3g 26 wks factory lead time
2500 : $0.2118
5001 : $0.1955
10001 : $0.1816
1.5smc33cahe3/9at vishay / semiconductor tvs sgl bi-dir 28.2v 1.5kw 2pin smc - tape and reel 1.5smc33cahe3/9at 6 wks factory lead time
3500 : $0.3944
1.5smc33ahe3/9at vishay / semiconductor tvs sgl uni-dir 28.2v 1.5kw 2pin smc - tape and reel 1.5smc33ahe3/9at 6 wks factory lead time
3500 : $0.3099
1.5smc33cahe3/57t vishay / semiconductor tvs sgl bi-dir 28.2v 1.5kw 2pin smc - tape and reel 1.5smc33cahe3/57t 6 wks factory lead time
1700 : $0.3944
1.5smc33at3g on semiconductor tvs sgl uni-dir 28.2v 1.5kw 2pin smc - cut tr (sos) 1.5smc33at3g/bkn 3535 in stock
1 : $0.48
100 : $0.436
1000 : $0.40
1smc33at3g on semiconductor tvs sgl uni-dir 33v 1.5kw 2pin smc - cut tr (sos) 1smc33at3g/bkn 2500 in stock
1 : $0.48
25 : $0.432
100 : $0.3411
250 : $0.3086
500 : $0.288
see more
1.5smc33a-e3/9at vishay / semiconductor tvs sgl uni-dir 28.2v 1.5kw 2pin smc - tape and reel 1.5smc33a-e3/9at 6 wks factory lead time
3500 : $0.2305
1.5smc33ca-e3/57t vishay / semiconductor tvs sgl bi-dir 28.2v 1.5kw 2pin smc - tape and reel 1.5smc33ca-e3/57t 6 wks factory lead time
1700 : $0.2722
1.5smc33a-m3/9at vishay / semiconductor 1.5kw,33v 5%,unidir,smc tvs 1.5smc33a-m3/9at 6 wks factory lead time
7000 : $0.2845
1.5smc33ca-m3/57t vishay / semiconductor 1.5kw,33v 5%,bidir,smc tvs 1.5smc33ca-m3/57t 6 wks factory lead time
3400 : $0.3796
1.5smc33ca-m3/9at vishay / semiconductor 1.5kw,33v 5%,bidir,smc tvs 1.5smc33ca-m3/9at 6 wks factory lead time
3500 : $0.3796
1.5smc33a-m3/57t vishay / semiconductor 1.5kw,33v 5%,unidir,smc tvs 1.5smc33a-m3/57t 6 wks factory lead time
4250 : $0.2845
arrow electronics • ecia (neda) member • authorized distributor
元器件型号 厂商 描述 arrow# 数量 价格
1.5smc33a littelfuse diode tvs single uni-dir 28.2v 1.5kw 2-pin do-214ab t/r 1.5smc33a 0
$0.34
1.5smc33a littelfuse diode tvs single uni-dir 28.2v 1.5kw 2-pin do-214ab t/r 1.5smc33a**mult1 3000
click buy for pricing
1.5smc33at3g on semiconductor diode tvs single uni-dir 28.2v 1.5kw 2-pin smc t/r 1.5smc33at3g 0
$0.21
1.5smc33at3g on semiconductor diode tvs single uni-dir 28.2v 1.5kw 2-pin smc t/r 1.5smc33at3g**mult1 0
click buy for pricing
1smc33at3 on semiconductor diode tvs single uni-dir 33v 1.5kw 2-pin smc t/r 1smc33at3 0
$0.25
1smc33at3g on semiconductor diode tvs single uni-dir 33v 1.5kw 2-pin smc t/r 1smc33at3g 0
$0.21
1smc33at3g on semiconductor diode tvs single uni-dir 33v 1.5kw 2-pin smc t/r 1smc33at3g**mult1 1769
click buy for pricing
1.5smc33a r6 taiwan semiconductor diode tvs single uni-dir 28.2v 1.5kw 2-pin smc t/r 1.5smc33a r6 0
$0.24
1.5smc33ca r6 taiwan semiconductor diode tvs single bi-dir 28.2v 1.5kw 2-pin smc t/r 1.5smc33ca r6 0
$0.28
1.5smc33a-e3/51t vishay diode tvs single uni-dir 28.2v 1.5kw 2-pin smc bulk 1.5smc33a-e3/51t 0
$0.44
1.5smc33a-e3/57t vishay diode tvs single uni-dir 28.2v 1.5kw 2-pin smc t/r 1.5smc33a-e3/57t 0
$0.21
1.5smc33a-e3/9at vishay diode tvs single uni-dir 28.2v 1.5kw 2-pin smc t/r 1.5smc33a-e3/9at 0
$0.26
1.5smc33a/57t vishay diode tvs single uni-dir 28.2v 1.5kw 2-pin smc t/r 1.5smc33a/7 0
$0.37
1.5smc33ca-e3/51t vishay diode tvs single bi-dir 28.2v 1.5kw 2-pin smc bulk 1.5smc33ca-e3/51t 0
$0.75
1.5smc33ca-e3/57t vishay diode tvs single bi-dir 28.2v 1.5kw 2-pin smc t/r 1.5smc33ca-e3/57t 0
$0.30
1.5smc33ca-e3/9at vishay diode tvs single bi-dir 28.2v 1.5kw 2-pin smc t/r 1.5smc33ca-e3/9at 0
$0.30
3kasmc33ahe3/57t vishay diode tvs single uni-dir 33v 3kw 2-pin smc t/r 3kasmc33ahe3/57t 0
$0.61
tpsmc33a-e3/57t vishay diode tvs single uni-dir 28.2v 1.5kw 2-pin smc t/r tpsmc33a-e3/57t 0
$0.39
future electronics • ecia (neda) member • authorized distributor
元器件型号 厂商 描述 pkg qty rohs pb free datasheet 数量 价格 (usd)
3smc33a tr13 central semi 3smc series 42.2 v 3000 w uni-directional transient voltage suppressor do-214ab 3000 y y datasheet 0
3smc33ca tr13 central semi 3smc series 42.2 v 3000 w bi-directional transient voltage suppressor - do-214ab 3000 y y datasheet 0
1.5smc33at3g on semiconductor 1.5smc series 34.7 v 1500 w unidirectional zener transient voltage suppressor 1 y y datasheet 2000
1 : $0.32
5 : $0.31
50 : $0.275
250 : $0.215
1.5smc33at3g on semiconductor 1.5smc series 34.7 v 1500 w unidirectional zener transient voltage suppressor 2500 y y datasheet 0
2500 : $0.182
1smc33at3g on semiconductor 1smc series 40.6v 1500 w unidirectional power zener transient voltage suppressor 1 y y datasheet 2500
1 : $0.32
5 : $0.31
50 : $0.275
250 : $0.215
1smc33at3g on semiconductor 1smc series 40.6v 1500 w unidirectional power zener transient voltage suppressor 2500 y y datasheet 0
2500 : $0.182
1.5smc33a-e3/57t vishay 1500 w smc package 33 v uni directionalsmd transient voltage suppressor diode 850 y y datasheet 0
850 : $0.177
1700 : $0.17
2550 : $0.165
3kasmc33a-e3/57t vishay 3kasmc33a series 53.3 v 6 w automotive transient voltage suppressor-do-214ab 850 y y datasheet 0
850 : $0.815
tpsmc33ahe3/57t vishay 1500 w 45.7 v uni directional smt transient voltage suppressor - do-214ab 850 y y datasheet 0
850 : $0.38
1700 : $0.375
wuhan p&s • authorized distributor
元器件型号 manufacturer 描述 数量
1.5smc33at3g on semiconductor 1500 watt peak power zener transient voltage suppressors 9200
1.5smc33at3 on semiconductor 1500 watt peak power zener transient voltage suppressors 500
1smc33at3 on semiconductor 1500 watt peak power,plastic surface mount,zener transient voltage suppressor 363