SMCJ5.0CA-TR - STMICROELECTRONICS

July 2010 Doc ID 5617 Rev 8 1/10

SMCJ

Transil™

Features

■Peak pulse power:

– 1500 W (10/1000 μs)

– 10 kW (8/20 μs)

■Stand off voltage range: from 5 V to 188 V

■Unidirectional and bidirectional types

■Low leakage current:

–0.2 μA at 25 °C

–1 μA at 85 °C

■Operating Tjmax

: 150 °C

■High power capability at Tjmax

– 1250 W (10/1000 µs)

■JEDEC registered package outline

Complies with the following standards

■IEC 61000-4-2 level 4

– 15 kV (air discharge)

– 8 kV (contact discharge)

■IEC 61000-4-5

■MIL STD 883G, method 3015-7 Class 3B

– 25 kV HBM (human body model)

■Resin meets UL 94, V0

■MIL-STD-750, method 2026 solderability

■EIA STD RS-481 and IEC 60286-3 packing

■IPC 7531 footprint

Description

The SMCJ Transil series has been designed to

protect sensitive equipment against electrostatic

discharges according to IEC 61000-4-2, and

MIL STD 883, method 3015, and electrical over

stress according to IEC 61000-4-4 and 5. These

devices are more generally used against surges

below 1500 W (10/1000 μs).

The Planar technology makes it compatible with

high-end equipment and SMPS where low

leakage current and high junction temperature are

required to provide reliability and stability over

time.

SMCJ are packaged in SMC (SMC footprint in

accordance with IPC 7531 standard).

TM: Transil is a trademark of STMicroelectroniocs

Unidirectional Bidirectional

SMC

(JEDEC DO-214AB)

www.st.com

Characteristics SMCJ

2/10 Doc ID 5617 Rev 8

1 Characteristics

Figure 1. Electrical characteristics - definitions

Figure 2. Pulse definition for electrical characteristics

Table 1. Absolute maximum ratings (Tamb = 25 °C)

Symbol Parameter Value Unit

PPP Peak pulse power dissipation (1) Tj initial = Tamb 1500 W

Tstg Storage temperature range -65 to +150 ° C

TjOperating junction temperature range -55 to +150 ° C

TLMaximum lead temperature for soldering during 10 s. 260 ° C

1. For a surge greater than the maximum values, the diode will fail in short-circuit.

Table 2. Thermal resistances

Symbol Parameter Value Unit

Rth(j-l) Junction to leads 15 ° C/W

Rth(j-a) Junction to ambient on printed circuit on recommended pad layout 90 ° C/W

Unidirectional

Bidirectional

Symbol Parameter

V Stand-off voltage

V Breakdown voltage

V Clamping voltage

I Leakage current @ V

I Peak pulse current

T Voltage temperature coefficient

V Forward voltage drop

R Dynamic resistance

RM RM

Repetitive pulse current

tr= rise time (µs)

tp= pulse duration time (µs)

trtp

SMCJ Characteristics

Doc ID 5617 Rev 8 3/10

Table 3. Electrical characteristics - parameter values (Tamb = 25 °C)

Order code

IRM max@VRM VBR @IR(1)

1. Pulse test : tp < 50 ms

VCL @IPP

10/1000 µs

RD (2)

10/1000 µs

2. To calculate maximum clamping voltage at other surge level,use the following formula: VCLmax = VCL - RD x (IPP - IPPappli)

where IPPappli is the surge current in the application

VCL @IPP

8/20 µs

RD (2)

8/20 µs αT (3)

3. To calculate VBR or VCL versus junction temperature, use the following formulas:

VBR @ TJ = VBR @ 25°C x (1 + αT x (TJ – 25))

VCL @ TJ = VCL @ 25°C x (1 + αT x (TJ – 25))

25 °C 85 °C min typ max max max

µA V V mA V A(4)

4. Surge capability given for both directions for unidirectional and bidirectional types.

ΩVA

(4) mΩ10-4/ °C

SMCJ5.0A/CA 500 2000 5.0 6.4 6.74 10 9.2 171 0.012 13.4 746 8.5 5.7

SMCJ6.0A/CA 500 2000 6.0 6.7 7.05 10 10.3 152 0.019 13.7 730 8.6 5.9

SMCJ6.5A/CA 250 1000 6.5 7.2 7.58 10 11.2 140 0.023 14.5 690 9.5 6.1

SMCJ8.5A/CA 10 50 8.5 9.4 9.9 1 14.4 105 0.038 19.5 512 18 7.3

SMCJ10A/CA 0.2 1 10 11.1 11.7 1 17 92 0.051 21.7 461 20 7.8

SMCJ12A/CA 0.2 1 12 13.3 14 1 19.9 79 0.066 25.3 394 27 8.3

SMCJ13A/CA 0.2 1 13 14.4 15.2 1 21.5 73 0.076 27.2 368 31 8.4

SMCJ15A/CA 0.2 1 15 16.7 17.6 1 24.4 64 0.092 32.5 308 46 8.8

SMCJ18A/CA 0.2 1 18 20.0 21.1 1 29.2 53 0.133 39.3 254 68 9.2

SMCJ20A/CA 0.2 1 20 22.2 23.4 1 32.4 48 0.163 42.8 234 78 9.4

SMCJ22A/CA 0.2 1 22 24.4 25.7 1 35.5 44 0.194 48.3 207 103 9.6

SMCJ24A/CA 0.2 1 24 26.7 28.1 1 38.9 40 0.235 50 200 102 9.6

SMCJ26A/CA 0.2 1 26 28.9 30.4 1 42.1 37 0.275 53.5 187 115 9.7

SMCJ28A/CA 0.2 1 28 31.1 32.7 1 45.4 34 0.325 59 169 146 9.8

SMCJ30A/CA 0.2 1 30 33.3 35.1 1 48.4 32 0.361 64.3 156 176 9.9

SMCJ33A/CA 0.2 1 33 36.7 38.6 1 53.3 29 0.440 69.7 143 204 10.0

SMCJ40A/CA 0.2 1 40 44.4 46.7 1 64.5 24 0.644 84 119 294 10.1

SMCJ48A/CA 0.2 1 48 53.3 56.1 1 77.4 20 0.925 100 100 411 10.3

SMCJ58A/CA 0.2 1 58 64.4 67.8 1 93.6 16 1.40 121 83 600 10.4

SMCJ70A/CA 0.2 1 70 77.8 81.9 1 113 13.9 1.94 146 69 870 10.5

SMCJ85A/CA 0.2 1 85 94 99 1 137 11.5 2.87 178 56 1322 10.6

SMCJ100A/CA 0.2 1 100 111 117 1 162 9.7 4.04 212 47 1897 10.7

SMCJ130A/CA 0.2 1 130 144 152 1 209 7.5 6.59 265 38 2774 10.8

SMCJ154A/CA 0.2 1 154 171 180 1 246 6.1 9.34 317 31.5 4063 10.8

SMCJ170A/CA 0.2 1 170 189 199 1 275 5.7 11.6 353 28 5145 10.8

SMCJ188A/CA 0.2 1 188 209 220 1 328 4.6 21.1 388 26 6038 10.8

Characteristics SMCJ

4/10 Doc ID 5617 Rev 8

Figure 5. Clamping voltage versus peak pulse current (exponential waveform, maximum values)

Figure 3. Peak pulse power dissipation

versus initial junction temperature

Figure 4. Peak pulse power versus

exponential pulse duration

(Tj initial = 25 °C)

500

1000

1500

2000

0 25 50 75 100 125 150 175

Ppp (W)

Tj(°C)

0.1

1.0

10.0

100.0

1.0E-03 1.0E-02 1.0E-01 1.0E+00 1.0E+01

(kW)

Tjinitial = 25 °C

tP(ms)

IPP(A)

0.1

1.0

10.0

100.0

1000.0

1 10 100 1000

10/1000 µs

Tjinitial=25 °C

8/20 µs

10 ms

SMCJ5.0A

SMCJ12A

SMCJ24A

SMCJ40A

SMCJ85A

SMCJ188A

VCL(V)

SMCJ Characteristics

Doc ID 5617 Rev 8 5/10

Figure 6. Junction capacitance versus

reverse applied voltage for

unidirectional types (typical values)

Figure 7. Junction capacitance versus

reverse applied voltage for

bidirectional types (typical values)

0.01

0.10

1.00

10.00

1 10 100 1000

C(nF)

F=1 MHz

VOSC=30 mVRMS

Tj=25 °C

SMCJ5.0A

SMCJ12A

SMCJ24A

SMCJ40A

SMCJ85A

SMCJ188A

VR(V)

0.01

0.10

1.00

10.00

1 10 100 1000

C(nF)

F=1 MHz

VOSC=30 mVRMS

Tj=25 °C

SMCJ5.0CA

SMCJ12CA

SMCJ24CA

SMCJ40CA

SMCJ85CA

SMCJ188CA

(V)

Figure 8. Peak forward voltage drop

versus peak forward current

(typical values)

Figure 9. Relative variation of thermal

impedance, junction to ambient,

versus pulse duration

Figure 10. Thermal resistance junction to

ambient versus copper surface

under each lead

Figure 11. Leakage current versus junction

temperature (typical values)

(A)

1.0E-01

1.0E+00

1.0E+01

1.0E+02

0.0 0.5 1.0 1.5 2.0 2.5 3.0

Tj=25 °C

Tj=125 °C

VFM(V)

0.01

0.10

1.00

1.0E-03 1.0E-02 1.0E-01 1.0E+00 1.0E+01 1.0E+02 1.0E+03

th(j-a)

tP(s)

Recommended pad layout

PCB FR4, copper thickness = 35 µm

100

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

th(j-a)

(°C/W)

SCU(cm²)

PCB FR4, copper thickness = 35 µm

(nA)

1.0E+00

1.0E+01

1.0E+02

1.0E+03

1.0E+04

25 50 75 100 125 150

VR=VRM

VRM ≥10 V

VR=VRM

VRM <10V

Tj(°C)

Ordering information scheme SMCJ

6/10 Doc ID 5617 Rev 8

2 Ordering information scheme

Figure 12. Ordering information scheme

SM C J 85 CA - TR

Surface mount

Peak pulse power

C = 1500 W Transil in SMC

Stand off voltage

85 = 85 V

Type

A = Unidirectinal

CA = Bidirectional

Delivery mode

TR = Tape and reel

SMCJ Package information

Doc ID 5617 Rev 8 7/10

3 Package information

●Case: JEDEC DO-214AB molded plastic over planar junction

●Terminals: solder plated, solderable per MIL-STD-750, Method 2026

●Polarity: for unidirectional types the band indicates cathode

●Flammability: epoxy is rated UL94V-0

●RoHS package

In order to meet environmental requirements, ST offers these devices in different grades of

ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®

specifications, grade definitions and product status are available at: www.st.com.

ECOPACK® is an ST trademark.

Table 4. SMC dimensions

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

Figure 13. Footprint dimensions mm

(inches)

Figure 14. Marking layout(1)

1. Marking layout can vary according to assembly location.

CLE2

8.19

1.545.111.54

(0.061) (0.201)

(0.322)

(0.124)

(0.061)

3.14

y w w

x x x

e: ECOPACK compliance

XXX: Marking

Z: Manufacturing location

Y: Year

WW: week

Cathode bar ( unidirectional devices only )

Package information SMCJ

8/10 Doc ID 5617 Rev 8

Table 5. Marking

Order code Marking Order code Marking

SMCJ5.0A-TR FUA SMCJ5.0CA-TR FBA

SMCJ6.0A-TR FUB SMCJ6.0CA-TR FBB

SMCJ6.5A-TR FUC SMCJ6.5CA-TR FBC

SMCJ8.5A-TR FUD SMCJ8.5CA-TR FBD

SMCJ10A-TR FUF SMCJ10CA-TR FBF

SMCJ12A-TR FUH SMCJ12CA-TR FBH

SMCJ13A-TR FUI SMCJ13CA-TR FBI

SMCJ15A-TR FUJ SMCJ15CA-TR FBJ

SMCJ18A-TR FUL SMCJ18CA-TR FBL

SMCJ20A-TR FUM SMCJ20CA-TR FBM

SMCJ22A-TR FUN SMCJ22CA-TR FBN

SMCJ24A-TR FUO SMCJ24CA-TR FBO

SMCJ26A-TR FUP SMCJ26CA-TR FBP

SMCJ28A-TR FUQ SMCJ28CA-TR FBQ

SMCJ30A-TR FUR SMCJ30CA-TR FBR

SMCJ33A-TR FUS SMCJ33CA-TR FBS

SMCJ40A-TR FUU SMCJ40CA-TR FBU

SMCJ48A-TR FUW SMCJ48CA-TR FBW

SMCJ58A-TR FUZ SMCJ58CA-TR FBZ

SMCJ70A-TR GUB SMCJ70CA-TR GBB

SMCJ85A-TR GUE SMCJ85CA-TR GBE

SMCJ100A-TR GUG SMCJ100CA-TR GBG

SMCJ130A-TR GUI SMCJ130CA-TR GBI

SMCJ154A-TR GUL SMCJ154CA-TR GBL

SMCJ170A-TR GUM SMCJ170CA-TR GBM

SMCJ188A-TR GUN SMCJ188CA-TR GBN

SMCJ Ordering information

Doc ID 5617 Rev 8 9/10

4 Ordering information

Table 6. Ordering information

5 Revision history

02-Jul

Order code Marking Package Weight Base qty Delivery mode

SMCJxxxA/CA-TR(1)

1. Where xxx is nominal value of VBR and A or CA indicates unidirectional or bidirectional version. See

Table 3 for list of available devices and their order codes

See Table 5 on page 8 SMC 0.25 g 2500 Tape and reel

Table 7. Document revision history

Date Revision Changes

August-1999 5A Previous update.

14-May-2009 6 Reformatted to current standards. Updated ECOPACK

statement.

17-Sep-2009 7 Document updated for low leakage current.

12-Jul-2010 8 Changed timescale in Figure 9.

SMCJ

10/10 Doc ID 5617 Rev 8

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