ST BTA20 User Manual

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Features

TO-220AB Insulated

BTA20

20 A Snubberless™ Triacs

Datasheet  production data

■ I

■ V

■ I

= 20 A

T(RMS)

DRM

GT (Q1)

, V

= 600 and 700 V

RRM

(max) = 35 and 50 mA

Description

The BTA20 Triacs use high performance glass passivated chip technology. The Snubberless concept offers suppression of the RC network and is suitable for applications such as phase control and static switching on inductive or resistive load.

Thanks to their clip assembly technique, the BTA20 Triacs provide a superior performance in surge current handling capabilities.

By using an internal ceramic pad, the BTA series provides voltage insulated tab (rated at 2500 V rms) complying with UL standards (File ref.: E81734).

TM: Snubberless is a trademark of STMicroelectronics.

July 2012 Doc ID 2932 Rev 3 1/8

This is information on a product in full production.

www.st.com

Characteristics BTA20

1 Characteristics

Table 1. Absolute maximum ratings

Symbol Parameter Value Unit

T(RMS)

TSM

dI/dt

DSM

RSM

G(AV)

Table 2. Electrical characteristics (Tj = 25 °C, unless otherwise specified)

On-state rms current (full sine wave) Tc = 70 °C 20 A

Non repetitive surge peak on-state current (full cycle, Tj initial = 25°C)

tI²t Value for fusing tp = 10 ms 200 A²s

Critical rate of rise of on-state current

= 2 x IGT, tr  100 ns

Non repetitive peak off-state voltage tp = 10 ms Tj = 25 °C

F = 50 Hz t = 10 ms 210

F = 60 Hz t = 8.3 ms 200

Repetitive F = 50 Hz

= 125 °C

Non repetitive 100

DSM/VRSM

100

Peak gate current tp = 20 µs Tj = 125 °C 4 A

Peak positive gate voltage tp = 20 µs 16 V

Average gate power dissipation Tj = 125 °C 1 W

Storage junction temperature range - 40 to + 150

stg

Operating junction temperature range - 40 to + 125

BTA20

Symbol Test conditions Quadrant

BW CW

A/µs

°C

Unit

(1)

IGT

VD = 12 V, RL = 33 

dV/dt

(dV/dt)c

1. Minimum IGT is guaranteed at 5% of IGT max.

2. For both polarities of A2 referenced to A1.

VD = V

DRM, RL

(2)

IT = 500 mA, gate open Max. 75 50 mA

IG = 1.2 I

(2)

VD = 67% V

(2)

(dI/dt)c = 20 A/ms  Tj = 125 °C

= 3.3 kTj = 125 °C ALL Min. 0.2 V

gate open Tj = 125 °C

DRM,

2/8 Doc ID 2932 Rev 3

ALL

Min. 2 1

Max. 50 35

ALL Max. 1.5 V

I - III

50 -

Ty p.

I - II - III Max. - 80

Ty p. 7 5 0 5 0 0

Min. 500 250

Typ. 36 22

Min. 18 11

mAII 90 -

V/µs

BTA20 Characteristics

0 5 10 15 20

P(W)

I (A)

T(RMS)

180°

α = 180°

α = 120°

α = 90°

α = 30°

α = 60°

0 20 40 60 80 100 120

P(W)

125

115

105

T (°C)

case

R = 1.5°C/W

R = 1°C/W

R = 0.5°C/W

R = 0°C/W

T (°C)

amb

(Tamb andTcase) for different thermal

resistances heatsink + contact

0 10 20 30 40 50 60 70 80 90 100 110 120 130

I (A)

T(RMS)

T (°C)

α = 180°

t (s)

1.E-3 1.E-2 1.E-1 1.E+0 1.E+1 1.E+2 5.E+2

0.01

0.1

K=[Z /R

th th

]

th(j-c)

th(j-a)

Table 3. Static characteristics

Symbol Parameter Value Unit

(1)

DRM

RRM

ITM = 28 A, tp = 380 µs

= V

DRM

RRM

1. For both polarities of A2 referenced to A1.

Table 4. Thermal resistances

= 125 °C

Tj = 125 °C

Max. 1.70 V

10 µA

Max.

3mA

Symbol Parameter Value Unit

Junction to case for AC 2.1

th(j-c)

Junction to case for DC 2.8

th(j-c)

th(j-a)

Junction to ambient 60

Figure 1. Maximum power dissipation versus

on-state rms current (full cycle)

Figure 2. Correlation between maximum rms

power dissipation and maximum

°C/WR

allowable temperatures

Figure 3. On-state rms current versus case

temperature (full cycle)

Figure 4. Relative variation of thermal

impedance versus pulse duration

Doc ID 2932 Rev 3 3/8

Characteristics BTA20

12345

100

1000

I (A)

V (V)

T = 25°Cj.

T=jT max.

T max. V = 1.04V R = 20 m

1 10 100 1000

100

1000

I (A)

TSM

Number of cycles

t=20ms

One cycle

Non repetitive T initial=25°C

0.01 0.10 1.00 10.00

100

1000

I (A), I t (A s)

TSM

t (ms)

T initial=25°C

TSM

I t

pulse width t 10 ms≤

-40 -30 -20 -10 0 20 3010 40 50 60 70 80 90 110100 130120

0.0

0.5

1.0

1.5

2.0

2.5

I,I,I[T] /

GT H L j

I ,I ,I [T =25°C]

GT H L j

T (°C)

IH& I

Figure 5. On-state characteristics

(maximum values)

Figure 7. Non repetitive surge peak on-state

current for a sinusoidal pulse and corresponding value of I

Figure 6. Non repetitive surge peak on-state

current versus number of cycles

Figure 8. Relative variation of gate trigger

current and holding current versus junction temperature

4/8 Doc ID 2932 Rev 3

BTA20 Ordering information scheme

BT A 20 - 600 BW RG

Triac series

Insulation

Current

Voltage

Sensitivity and type

Packing mode

A = insulated

20 = 20A

600 = 600V 700 = 700V

BW = 50mA (max.) CW = 35mA (max)

RG = Tube

2 Ordering information scheme

Figure 9. Ordering information scheme

Table 5. Product selector

Voltag e

Order code

600 V 700 V

Sensitivity Type Package

BTA20-600CWRG X 35 mA

BTA20-700CWRG X 35 mA

Snubberless TO-220AB Ins.BTA20-700BWRG X 50 mA

Doc ID 2932 Rev 3 5/8

Package information BTA20

Ø I

3 Package information

● Epoxy meets UL94, V0

● Lead-free package

In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK specifications, grade definitions and product status are available at: www.st.com ECOPACK

Table 6. TO-220AB dimensions

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

is an ST trademark.

Dimensions

Ref.

Millimeters Inches

Min. Typ. Max. Min. Typ. Max.

A 15.20 15.90 0.598 0.625

a1 3.75 0.147

a2 13.00 14.00 0.511 0.551

B 10.00 10.40 0.393 0.409

b1 0.61 0.88 0.024 0.034

b2 1.23 1.32 0.048 0.051

C 4.40 4.60 0.173 0.181

c1 0.49 0.70 0.019 0.027

c2 2.40 2.72 0.094 0.107

e 2.40 2.70 0.094 0.106

F 6.20 6.60 0.244 0.259

ØI 3.75 3.85 0.147 0.151

I4 15.80 16.40 16.80 0.622 0.646 0.661

L 2.65 2.95 0.104 0.116

l2 1.14 1.70 0.044 0.066

l3 1.14 1.70 0.044 0.066

M2.60 0.102

6/8 Doc ID 2932 Rev 3

BTA20 Ordering information

4 Ordering information

Table 7. Ordering information

Ordering type Marking Package Weight Base qty Delivery mode

BTA20-600CWRG BTA20-600CW

TO-220AB Ins. 2.3 g 50 TubeBTA20-700BWRG BTA20-700BW

BTA20-700CWRG BTA20-700CW

5 Revision history

Table 8. Document revision history

Date Revision Changes

Sep-2001 1A Initial release.

08-Feb-2006 2 TO-220AB Ins. delivery mode changed from bulk to tube.

09-Jul-2012 3 Updated dI/dt repetitive value in Table 1.

Doc ID 2932 Rev 3 7/8

BTA20

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8/8 Doc ID 2932 Rev 3

ST BTA20 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Characteristics

Table 1. Absolute maximum ratings

Table 3. Static characteristics

Table 4. Thermal resistances

2 Ordering information scheme

Figure 9. Ordering information scheme

Table 5. Product selector

3 Package information

Table 6. TO-220AB dimensions

4 Ordering information

Table 7. Ordering information

5 Revision history

Table 8. Document revision history