TCM1030, TCM1050

DUAL TRANSIENT-VOLTAGE SUPPRESSORS

SCTS040B – JUNE 1989 – REVISED JUNE 1997

3

POST OFFICE BOX 655303

electrical characteristics over operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

TCM1030

TCM1050

UNIT

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

MIN

TYP†

MAX

UNIT

IFM = 1-A transient

1.2

2

1.2

2

VCF

Forward clamping voltage

(diode forward voltage) (see

IFM = 10-A transient

2.5

4

2

4

V

VCF

(diode forward voltage) (see

Note 3)

IFM = 16-A transient

4

5

2.5

5

V

Note 3)

IFM = 30-A transient

—

—

—

3.1

5

ITM = 1-A transient

–1.2

–2

–1.2

–2

VC(R)

Reverse clamping voltage

(SCR on state voltage) (see

ITM = 10-A transient

– 2.5

–4

– 2.5

–4

V

VC(R)

(SCR on-state voltage) (see

Note 3)

ITM = 16-A transient

–4

–5

–3

–5

V

Note 3)

ITM = 30-A transient

—

—

—

– 4.8

–7

II(trip)

Trip current (see Note 4)

VS = – 50 V

– 100

– 325

– 100

– 325

mA

IH

Holding current

VS = – 50 V

– 100

– 150

mA

VS = – 50 V,

I = trip current

–50

–55

–50

–55

VI(trip)

Trip voltage

VS = – 65 V,

I = trip current

–65

–70

–65

–70

V

()

VS = – 85 V,

I = trip current

—

—

—

–85

–90

II(stby)

Standby current

TIP and RING at – 85 V or GND,

VS = – 85 V

±5

±5

µA

Transient overshoot voltage

VS = – 50 V,

tr = 10 ns

2.5

2.5

V

C ff

Off-state (high impedance)

TIP and RING at – 50 V

25

25

pF

Coff

(g

)

capacitance

TIP and RING at GND

50

50

pF

dv/dt

Critical rate of rise of off-state

voltage (see Note 5)

VS open,

VS = – 50 V

–1

–1

kV/

µs

† All typical values are at TA = 25°C.

NOTES:

3. The current flows through one TIP (or RING) terminal and one of the GND terminals. The voltage is measured between the other

TIP (or RING) terminal and the other GND terminal. Measurement time

≤ 1 ms.

4. The negative value of trip current refers to the current flowing out of TIP or RING on the line side that is sufficient in magnitude to

trigger the SCRs. Measurement time

≤ 1 ns.

5. The critical dv/dt is measured using a linear rate of rise with the maximum voltage limited to – 50 V with VS connected to TIP or RING

being measured.