ACPL-P343-000E Equivalent & Substitute Parts

Part Overview

The ACPL-P343-000E is a 1-channel optical isolation gate driver manufactured by Broadcom Limited, designed for high-voltage switching applications requiring galvanic isolation. This component provides 3750Vrms isolation voltage with 4A peak output current capability in a 6-SOIC surface mount package. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are identified when equivalent functional performance can be achieved within the allowed electrical and mechanical parameter ranges for gate driver optical couplers, particularly when the main part experiences supply constraints or when alternative sourcing is required for project continuity.

Substiute Parts

ACPL-P343-000E

Broadcom LimitedIn Stock: 941ACPL-P343-000E Datasheet

Current PartRFQ

FOD8342

onsemiIn Stock: 1280FOD8342 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The FOD8342 is identified as a substitute for the ACPL-P343-000E based on the following substitution criteria:

Both parts share the same functional category as 1-channel optical isolation gate drivers in 6-SOIC surface mount packages. Substitution compatibility is determined by the following allowed parameters:

• Single-channel configuration maintained
• Optical coupling technology preserved
• 6-SOIC package form factor identical (0.268", 6.80mm Width)
• Surface mount mounting type consistent
• Output supply voltage range overlap (10V ~ 30V encompasses 15V ~ 30V requirement)
• Operating temperature range compatibility (-40°C ~ 100°C covers primary operating window)
• RoHS3 compliance and unlimited MSL rating maintained
• Peak output current of 3A meets or exceeds typical gate driver requirements

The FOD8342 provides higher isolation voltage (5000Vrms vs 3750Vrms), which represents an enhancement rather than a limitation for applications designed for the ACPL-P343-000E.

Parameter Comparison

Engineering Selection Recommendations

Selection between ACPL-P343-000E and FOD8342 is based on the following engineering criteria:

ACPL-P343-000E is the primary choice when:

• Peak output current requirement exceeds 3A
• Common mode transient immunity of 35kV/µs or higher is specified
• Operating temperature must reach 105°C
• Broadcom component qualification is required

FOD8342 is suitable when:

• Peak output current of 3A is sufficient for the application
• Higher isolation voltage (5000Vrms) provides design margin
• Lower output supply voltage (10V minimum) is advantageous
• onsemi component qualification is acceptable
• Both parts maintain identical package footprint and surface mount compatibility

Both parts carry active product status, full RoHS3 compliance, and unlimited moisture sensitivity rating, ensuring equivalent supply chain and environmental compliance characteristics.

Frequently Asked Questions (FAQ)

Q: Can FOD8342 directly replace ACPL-P343-000E on existing PCBs?

A: Yes. Both parts use identical 6-SOIC package dimensions (0.268", 6.80mm Width) and surface mount configuration. No PCB layout modifications are required. Pin-to-pin compatibility must be verified against the specific application schematic.

Q: What is the primary difference between these two gate drivers?

A: The ACPL-P343-000E provides 4A peak output current and 35kV/µs common mode transient immunity, while the FOD8342 provides 3A peak output current and 20kV/µs common mode transient immunity. The FOD8342 offers higher isolation voltage (5000Vrms vs 3750Vrms) and wider output supply voltage range (10V ~ 30V vs 15V ~ 30V).

Q: Are there temperature range limitations when substituting?

A: The ACPL-P343-000E operates to 105°C maximum, while FOD8342 operates to 100°C maximum. Applications requiring operation above 100°C must use ACPL-P343-000E.

Q: Do both parts meet the same compliance standards?

A: Both parts are RoHS3 compliant, carry unlimited moisture sensitivity rating (MSL 1), and hold equivalent environmental compliance status. Approval agencies differ: ACPL-P343-000E carries CSA and UR approval, while FOD8342 carries UR approval.

Q: What output current should I specify for my application?

A: Verify your gate driver circuit requires no more than 3A peak output current for FOD8342 substitution. If 4A peak output current is necessary, ACPL-P343-000E is required.

Q: Are propagation delay differences significant?

A: Propagation delay for FOD8342 is 210ns maximum versus 200ns maximum for ACPL-P343-000E. This 10ns difference is typically negligible in most gate driver applications but should be verified against timing-critical circuit requirements.