MOC3043 Fairchild Semiconductor, MOC3043 Datasheet - Page 4

• Manufacturer Part Number: MOC3043
• Manufacturer: Fairchild Semiconductor

Specifications of MOC3043

• Number Of Elements: 1
• Forward Voltage: 1.5V
• Repetitive Peak Off-state Volt: 400V
• Operating Temp Range: -40C to 85C
• Package Type: PDIP
• Reverse Breakdown Voltage: 6V
• Mounting: Through Hole
• Pin Count: 6
• Trigger Current: 5mA
• Zero Crossing Circuit: Yes
• Operating Temperature Classification: Industrial
• Forward Current: 60mA
• Power Dissipation: 250mW
• Output Device: Triac
• Isolation Voltage: 5250Vrms
• Lead Free Status / RoHS Status: Supplier Unconfirmed

* For highly inductive loads (power factor < 0.5), change this value to
V CC
360 ohms.
V CC
R in
R in
1
2
3
1
2
3
MOC3041/
3042/
MOC3041/
3043
3042/
3043
330
6
5
4
R1
6
5
4
360
D1
360
Figure 8. Hot–Line Switching Application Circuit
Figure 9. Inverse–Parallel SCR Driver Circuit
39
0.01
LOAD
R2
SCR
HOT
NEUTRAL
240 Vac
D2
SCR
LOAD
In this circuit the “hot” side of the line is switched and the
load connected to the cold or neutral side. The load may be
connected to either the neutral or hot line.
part, 5 mA for the MOC3043, 10 mA for the MOC3042, or
15 mA for the MOC3041. The 39 ohm resistor and 0.01 F
capacitor are for snubbing of the triac and may or may not
be necessary depending upon the particular triac and load
used.
with a Motorola triac driver. Diodes can be 1N4001; resis-
tors, R1 and R2, are optional 330 ohms.
NOTE: This optoisolator should not be used to drive a load directly.
Typical circuit for use when hot line switching is required.
R in is calculated so that I F is equal to the rated I FT of the
Suggested method of firing two, back–to–back SCR’s,
240 Vac
MOC3041, MOC3042, MOC3043
It is intended to be a trigger device only.