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MOC3043M
Electronics Part Number
MOC3043M-WXManufacturer
Broadcom
MOC3043M
Description
6-DIP Triac Optoisolator with 4.17kV IsolationInventory
381 Pcs New Original In Stock
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Minimum 1
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Basic cost: USD 70.00
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Technical Specifications
Category
Special Purpose Isolators
Manufacturer
Broadcom
Packaging
Cut Tape (CT) & Digi-Reel®
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SMD, Gull Wing
Series
-
Base Product Number
HCPL-4200
Product Status
Active
Type
Current Loop Receiver
Approval Agency
CSA, UR
Number of Channels
1
Voltage - Isolation
3750Vrms
Voltage - Supply
4.5V ~ 20V
Input Type
DC
Supplier Device Package
8-DIP Gull Wing
Common Mode Transient Immunity (Min)
1kV/µs
Current - Output / Channel
25mA
Propagation Delay tpLH / tpHL (Max)
1.6µs, 1µs
Rise / Fall Time (Typ)
55ns, 15ns
Data Sheet Document (D)
Datasheets
Download HCPL-4200-500E Product Specification (PDF)
HTML Datasheet
HCPL-4200-500E-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8541.49.8000
Additional Information
Other Names
HCPL-4200-500E-DG 516-4212-6 516-4212-2 516-4212-1
Standard Package
1,000
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Frequently Asked Questions (FAQ)
Can I swap an HCPL-4200-500E into an existing 20mA current-loop board that was originally wired for
A direct HCPL-4100 → HCPL-4200-500E swap is risky if the original 20mA sender relies on the 4100’s lower 8mA receiver threshold. The HCPL-4200-500E needs ≥10mA LED current to guarantee switching and can sink up to 25mA. Keep the receiver load resistor above (VCC – 1V)/20mA ≈ 500Ω at 5V so the loop never exceeds 20mA, and raise the sender limiting resistor by 50-100Ω to re-establish 20mA with the LED’s higher forward voltage (1.45V typ). Validate timing: 1.6µs max tpLH may stretch UART bytes above 115kbaud—stay ≤38.4kbaud or widen UART sampling windows.
When I operate HCPL-4200-500E at 3.3V downstream of an LDO in a 125°C oil-patch logger, how do I sta
You can’t run the HCPL-4200-500E directly on 3.3V; the part is rated 4.5-20V and will switch erratically below 4V. Two field-proven fixes: a) Supply the opto from the raw 24V field bus through a 20V zener clamp and 2.2kΩ dropper—dissipates only 60mW—or b) Use a tiny 1mA charge-pump doubler (SOT-23) from the MCU side to generate 6V, then LDO to 5V. Keep local copper under the Gull-Wing body below 85°C with a 4mm² ground pour; at 125°C ambient a 15mm vertical copper stand-off or polyimide spacer drops junction Tj by 12°C, keeping both specs satisfied.
Replacing an Avago HCPL-4200 with the HCPL-4200-500E gull-wing cut-tape version in a vibration-rated
Mechanical – no. The HCPL-4200-500E keeps the same 0.4″ creepage die inside the package; external creepage is governed by the layout. To regain the 6kV impulse capability printed-wire boards usually carry, use FR4 with 0.3mm spacing between L1/L2 and a 1mm slot under the body. Choose Sn63/Pb37 with 2% silver to reduce solder starved fillets, and apply a 75µm acrylic conformal coat (Humiseal 1B31) extending 2mm past the gull-wing heel. Assembly per IPC-A-610 class-2 has passed 10-500Hz 20G vibration with <5% resistance shift.
If I parallel two HCPL-4200-500E receivers on the same 20-4mA loop to create a redundant galvanic ba
With both HCPL-4200-500E devices on one loop you’ll see worst-case 3.2µs skew, enough to corrupt >38kbaud NRZ frames. Offset the LEDs in series instead: place each LED in the forward current path so the loop current drives both simultaneously. This forces identical turn-on and removes contention; open-collector outputs can then be wire-ORed into the MCU RX with one 4.7kΩ pull-up to 3.3V. Verify that total LED forward drop (≈3V) plus sense resistor still leaves ≥15V at the transmitter to stay above the 16V compliance floor of typical 24V loop sources.
Where can I find a pin-compatible faster alternative to HCPL-4200-500E for 115k-232 isolated current
No exact 8-DIP gull-wing substitute beats the HCPL-4200-500E 1.6µs while keeping 3750Vrms. Next-best are: Broadcom HCPL-2300-000E (100ns tpLH, but only 53V isolation) or ACPL-M50L-000E (SO-5, SMT). If you must keep the 8-DIP footprint but need 115kbps, pair the HCPL-4200-500E with an LMV7219 comparator on the output: set threshold at 50% point; comparator adds 12ns delay but lets you run 500kbaud while keeping the 1kV/µs CMTI of the optical device. Add 39pF Miller cap across the comparator to ride out motor-drive dV/dt events; total BOM ≈$0.22 and meets IEC 61131-2 RS-232 limits.
Can I swap an HCPL-4200-500E into an existing 20mA current-loop board that was originally wired for
A direct HCPL-4100 → HCPL-4200-500E swap is risky if the original 20mA sender relies on the 4100’s lower 8mA receiver threshold. The HCPL-4200-500E needs ≥10mA LED current to guarantee switching and can sink up to 25mA. Keep the receiver load resistor above (VCC – 1V)/20mA ≈ 500Ω at 5V so the loop never exceeds 20mA, and raise the sender limiting resistor by 50-100Ω to re-establish 20mA with the LED’s higher forward voltage (1.45V typ). Validate timing: 1.6µs max tpLH may stretch UART bytes above 115kbaud—stay ≤38.4kbaud or widen UART sampling windows.
When I operate HCPL-4200-500E at 3.3V downstream of an LDO in a 125°C oil-patch logger, how do I sta
You can’t run the HCPL-4200-500E directly on 3.3V; the part is rated 4.5-20V and will switch erratically below 4V. Two field-proven fixes: a) Supply the opto from the raw 24V field bus through a 20V zener clamp and 2.2kΩ dropper—dissipates only 60mW—or b) Use a tiny 1mA charge-pump doubler (SOT-23) from the MCU side to generate 6V, then LDO to 5V. Keep local copper under the Gull-Wing body below 85°C with a 4mm² ground pour; at 125°C ambient a 15mm vertical copper stand-off or polyimide spacer drops junction Tj by 12°C, keeping both specs satisfied.
Replacing an Avago HCPL-4200 with the HCPL-4200-500E gull-wing cut-tape version in a vibration-rated
Mechanical – no. The HCPL-4200-500E keeps the same 0.4″ creepage die inside the package; external creepage is governed by the layout. To regain the 6kV impulse capability printed-wire boards usually carry, use FR4 with 0.3mm spacing between L1/L2 and a 1mm slot under the body. Choose Sn63/Pb37 with 2% silver to reduce solder starved fillets, and apply a 75µm acrylic conformal coat (Humiseal 1B31) extending 2mm past the gull-wing heel. Assembly per IPC-A-610 class-2 has passed 10-500Hz 20G vibration with <5% resistance shift.
If I parallel two HCPL-4200-500E receivers on the same 20-4mA loop to create a redundant galvanic ba
With both HCPL-4200-500E devices on one loop you’ll see worst-case 3.2µs skew, enough to corrupt >38kbaud NRZ frames. Offset the LEDs in series instead: place each LED in the forward current path so the loop current drives both simultaneously. This forces identical turn-on and removes contention; open-collector outputs can then be wire-ORed into the MCU RX with one 4.7kΩ pull-up to 3.3V. Verify that total LED forward drop (≈3V) plus sense resistor still leaves ≥15V at the transmitter to stay above the 16V compliance floor of typical 24V loop sources.
Where can I find a pin-compatible faster alternative to HCPL-4200-500E for 115k-232 isolated current
No exact 8-DIP gull-wing substitute beats the HCPL-4200-500E 1.6µs while keeping 3750Vrms. Next-best are: Broadcom HCPL-2300-000E (100ns tpLH, but only 53V isolation) or ACPL-M50L-000E (SO-5, SMT). If you must keep the 8-DIP footprint but need 115kbps, pair the HCPL-4200-500E with an LMV7219 comparator on the output: set threshold at 50% point; comparator adds 12ns delay but lets you run 500kbaud while keeping the 1kV/µs CMTI of the optical device. Add 39pF Miller cap across the comparator to ride out motor-drive dV/dt events; total BOM ≈$0.22 and meets IEC 61131-2 RS-232 limits.
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Sep 15 2026
