SMCJ5.0A-TR,CA-TR
SMCJ188A-TR,CA-TR
TRANSILTM
®
PEAK PULSE POW ER : 1500 W (10/1000µs)
STAND OFF VOLTAGE RANGE :
From 5V to 188V.
UNI AND B IDIRECT IONAL TYPES
LOW CLA MPING FACTO R
FAST RESPONSE TIME
FEATURES
SMC
(JEDEC DO -214AB)
Symbol Parameter Value Unit
PPP Peak pulse power dissipation (see note 1) Tj initial = Tamb 1500 W
P Power dissipation on infinite heatsink Tamb = 50°C6.5W
I
FSM Non repetitive surge peak forward
current for unidirectional types tp = 10m s
Tj initial = Tamb 200 A
Tstg
TjStorage temperature range
Maximum junc tion t emperature - 65 to + 175
150 °C
°C
TLMaximum lead temperature for soldering during 10 s . 260 °C
Note 1 : For a surge great er than the maximum valu es, the diode wil l fail in short-ci rcuit.
AB SOL UTE M AXIMU M RA TIN GS (Tamb = 25°C)
DESCRIPTION
The SMCJ seri es are T RANS ILTM diodes designed
specifically for protecting sensitive equipment
against transient ov ervoltages.
Transil diodes provide high overvoltage pr otection
by clamping action. Their instantaneous response
to transient overvoltages makes them parti cularly
suited to protect voltage sensitive devices such
as MOS Technology and low voltage supplied
IC’s.
January 1999 - Ed: 5A
Symbol Parameter Value Unit
Rth (j-l) Junction to leads 15 °C/W
Rth (j-a) Junction to ambient on printed circ uit on recommended pad
layout 75 °C/W
THER MAL RE SISTA NC ES
1/5
I
IF
VF
VVCL VBR
VRM
IPP
IRM V
Symbol Parameter
VRM Stand-off voltage
VBR Breakdown voltage
VCL Clamping voltage
IRM Leakage current @ VRM
IPP Peak puls e current
αT Voltage temperature c oefficient
VFForward voltage drop
ELECTRICAL CHARACTERISTICS (Tamb = 25° C)
Types IRM @ VRM VBR @ IRVCL @ IPP VCL @ IPP αTC
max min max max max typ
note2 10/1000µs 8/20µs note3 note4
Unidirectional Mark. Bidirectional Mark. µAV VmAV A V A10
-4/°CpF
SMCJ5.0A-TR FUA SMCJ5.0CA-TR FBA 800 5.0 6.4 10 9.2 171 13.4 746 5.7 9500
SMCJ6.0A-TR FUB SMCJ6.0CA-TR FBB 800 6.0 6.7 10 10.3 152 13.7 730 5.9 9000
SMCJ6.5A-TR FUC SMCJ6.5CA-TR FBC 500 6.5 7.2 10 11.2 140 14.5 690 6.1 8500
SMCJ8.5A-TR FUD SMCJ8.5CA-TR FBD 5 8.5 9.4 1 14.4 105 19.5 512 7.3 7000
SMC10A-TR FUF SMCJ10CA-TR FBF 5 10 11.1 1 17 92 21.7 461 7.8 6000
SMCJ12A-TR FUH SMCJ12CA-TR FBH 5 12 13.3 1 19.9 79 25.3 394 8.3 5250
SMCJ13A-TR FUI SMCJ13CA-TR FBI 1 13 14.4 1 21.5 73 27.2 368 8.4 5000
SMCJ15A-TR FUJ SMCJ15CA-TR FBJ 1 15 16.7 1 24.4 64 32.5 308 8.8 4300
SMCJ18A-TR FUL SMCJ18CA-TR FBL 1 18 20 1 29.2 53 39.3 254 9.2 3700
SMCJ20A-TR FUM SMCJ20CA-TR FBM 1 20 22.2 1 32.4 48 42.8 234 9.4 3500
SMCJ22A-TR FUN SMCJ22CA-TR FBN 1 22 24.4 1 35.5 44 48.3 207 9.6 3200
SMCJ24A-TR FUO SMCJ24CA-TR FBO 1 24 26.7 1 38.9 40 50 200 9.6 3050
SMCJ26A-TR FUP SMCJ26CA-TR FBP 1 26 28.9 1 42.1 37 53.5 187 9.7 2900
SMCJ28A-TR FUQ SMCJ28CA-TR FBQ 1 28 31.1 1 45.4 34 59 169 9.8 2700
SMCJ30A-TR FUR SMCJ30CA-TR FBR 1 30 33.3 1 48.4 32 64.3 156 9.9 2500
SMCJ33A-TR FUS SMCJ33CA-TR FBS 1 33 36.7 1 53.3 29 69.7 143 10.0 2400
SMCJ40A-TR FUU SMCJ40CA-TR FBU 1 40 44.4 1 64.5 24 84 119 10.1 2050
SMCJ48A-TR FUW SMCJ48CA-TR FBW 1 48 53.3 1 77.4 20 100 100 10.3 1800
SMCJ58A-TR FUZ SMCJ58CA-TR FBZ 1 58 64.4 1 93.6 16 121 83 10.4 1550
SMCJ60A-TR GUA SMCJ60CA-TR GBA 1 60 66.5 1 96.6 15.7 125 81 10.5 1520
SMCJ70A-TR GUB SMCJ70CA-TR GBB 1 70 77.8 1 113 13.9 146 69 10.5 1350
SMCJ85A-TR GUE SMCJ85CA-TR GBE 1 85 94.4 1 137 11.5 178 56 10.6 1150
SMCJ100A-TR GUG SMCJ100CA-TR GBG 1 100 111 1 162 9.7 212 47 10.7 1000
SMCJ130A-TR GUI SMCJ130CA-TR GBI 1 130 144 1 209 7.5 265 38 10.8 850
SMCJ154A-TR GUL SMCJ154CA-TR GBL 1 154 171 1 246 6.1 317 31.5 10.8 725
SMCJ170A-TR GUM SMCJ170CA-TR GBM 1 170 189 1 275 5.7 353 28 10.8 675
SMCJ188A-TR GUN SMCJ188CA-TR GBN 1 188 209 1 328 4.6 388 26 10.8 625
Note 2 : Pulse test : tp < 50 ms.
Note 3 : ∆VBR = αT * (Tamb - 25) * VBR(25°C).
Not e 4 : VR = 0 V, F = 1 MHz. For bidirectional types,
capacitance value is divided by 2.
10 s
1000 s
%I
PP
50
0t
PULSE WAVEFORM 10/1000 s
100
SM CJxxxA-TR, CA-TR
2/5
ORDER CO DE
BIDIRECTIONAL
No suffix : Unidirectiona l
SURFACE MOUNT
STAND OFF VOLTAGE
1500 WATTS
SM C J 85 C A - TR
TAPE & REEL
0 25 50 75 100 125 150 175
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
Tj initial(°C )
Ppp [T j in itia l]/P p p[Tj initial=2 5 °C]
Fig. 1 : Peak power dissipation versus initial junc-
tion temperature.
0.01 0.10 1.00 10.00
0.1
1.0
10.0
50.0
tp(ms)
Ppp(kW)
Fig. 3: Peak pulse power versus exponential pulse
duration (Tj initial=25°C).
0 25 50 75 100 125 150
0
1
2
3
4
5
6
7
8
Tamb(°C)
P(W)
Rth(j-a)=Rth(j-l)
Rth(j-a)=75°C/W
Fig. 2: Continous power dissipation versus initial
junction temperature.
1 10 100 1000
1E-1
1E+0
1E+1
1E+2
1E+3
Vcl(V)
Ipp(A)
tp=20µs
tp=1ms
SMCJ5.0A,CA
SMCJ58A,CA
SMCJ33A,CA
SMCJ18A,CA
SMCJ8.5A,CA
SMCJ130A,CA
SMCJ188A,CA
Fig. 4: Clamping voltage versus peak pulse cur-
rent (Tj initial=25°C).
Ex ponential waveform tp=20µs & tp=1ms.
SM CJxx xA-T R, CA- TR
3/5
1 10 100 200
0.01
0.10
1.00
10.00
VR(V)
C(nF)
F=1MHz
SMCJ5.0A
SMCJ188A
SMCJ58A
SMCJ33A
SMCJ18A
Fig. 5-1: Capacitance versus reverse applied v olt-
age (typic al v alues) ( SM CJxxA serie).
0.5 1.0 1.5 2.0 2.5 3.0 3.5
0.1
1.0
10.0
100.0
200.0
VFM(V)
IFM(A)
Tj=25°C
Tj=125°C
Fig. 6: Peak forward voltage drop versus peak for-
ward current (ty pical values).
012345
40
50
60
70
80
90
100
S(cm²)
Rth(j-a) (°C/W)
Fig. 8: Ther mal resistance junction to ambient v er-
sus copper surface under each lead
(Printed circuit board FR4, e( Cu)=35µm)
1 10 100 200
0.01
0.10
1.00
10.00
VR(V)
C(nF)
F=1MHz
SMCJ5.0CA
SMCJ188CA
SMCJ58CA
SMCJ33CA
SMCJ18CA
Fig. 5-2: Capacitance versus reverse applied volt-
age (typical values) (SMCJxx CA serie).
1E-2 1E-1 1E+0 1E+1 1E+2 5E+2
0.01
0.10
1.00
tp(s)
Zth(j-a)/Rth(j-a)
Fig. 7: Relative variation of thermal impedance
junction t o am bient ver sus puls e dur ation.
(Printed circuit boar d F R4, S (C u)=1cm 2).
0 25 50 75 100 125 150
1E-1
1E+0
1E+1
1E+2
1E+3
2E+3
Tj(°C)
IR[Tj] / IR [Tj=25°C]
VBR<8.5V
VBR upper or
equal to 8.5V
Fig. 9: Relative v ariation of leakage current versus
junction temperature.
SM CJxxxA-TR, CA-TR
4/5
REF.
DIMENSIONS
Millimeters Inches
Min. Max. Min. Max.
A1 1.90 2.45 0.075 0.096
A2 0.05 0.20 0.002 0.008
b 2.90 3.2 0.114 0.126
c 0.15 0.41 0.006 0.016
E 7.75 8.15 0.305 0.321
E1 6.60 7.15 0.260 0.281
E2 4.40 4.70 0.173 0.185
D 5.55 6.25 0.218 0.246
L 0.75 1.60 0.030 0.063
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of
use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by
implic ation or othe rwise un der any pat ent or pat ent rights of STMi croelec tronics. Specific ations ment ioned in t his publicati on are subject to
change without notice. This publication supersedes and replaces all information previously supplied.
STMicr oel ect roni cs products are not author i zed f or use as crit ic al components i n l i fe s upport devices or systems without ex press w ri tte n ap-
proval of STMicroelectronics.
The ST logo is a registered t rademark of STMicroe lectronics
© 1999 STMicroe lectronics - Printed i n Italy - All rights reserved.
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Packaging : sta ndard packaging is in tape and reel.
PACKAGE M E CHANI CAL DATA
SMC (Plastic)
E
C
L
E2
E1
D
A1
A2
b
MAR KING : Logo, Date Code, Type Code, Cathode Band (for unidirectional types only).
FOOTPRINT DIMENSIONS (Millimeter)
SMC Plastic.
2.0 4.2 2.0
3.3
Weight : 0.25 g
SM CJxx xA-T R, CA- TR
5/5
