ACPL-W341-000E Equivalent & Substitute Parts

Part Overview

The ACPL-W341-000E is a 3A gate driver optical coupler manufactured by Broadcom Limited, designed for high-voltage isolation applications requiring 5000Vrms isolation rating. This single-channel optoisolator is classified as Active product status and is currently in stock with 1618 units available. The part is used in applications requiring galvanic isolation between control and power circuits, particularly in gate driver applications for power semiconductor switching.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter ranges for this product category.

Key Parameters

Parameter	Value	Unit
Voltage - Isolation	5000	Vrms
Number of Channels	1	—
Current - Peak Output	3	A
Current - Output High, Low	2.5, 2.5	A
Common Mode Transient Immunity (Min)	35	kV/µs
Propagation Delay tpLH / tpHL (Max)	200, 200	ns
Pulse Width Distortion (Max)	70	ns
Operating Temperature Range	-40 to 105	°C
Voltage - Output Supply	15 to 30	V
Package / Case	6-SOIC (0.268", 6.80mm Width)	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution eligibility for the ACPL-W341-000E is determined by the following critical parameters:

Isolation Voltage: Must maintain 5000Vrms minimum rating
Number of Channels: Must be single-channel configuration
Output Current Capability: Peak output current must be 3A; continuous output current (high/low) must be 2.5A minimum
Package Compatibility: Must use 6-SOIC (0.268", 6.80mm Width) surface mount package
Mounting Type: Must be surface mount
Technology: Optical coupling technology

The FOD8342T from onsemi meets these substitution criteria. Both parts share identical isolation voltage rating, single-channel architecture, equivalent output current specifications, and compatible package geometry. Both are surface mount optoisolators with active product status and RoHS3 compliance.

Parameter Comparison

Parameter	ACPL-W341-000E (Broadcom)	FOD8342T (onsemi)	Unit
Voltage - Isolation	5000	5000	Vrms
Number of Channels	1	1	—
Current - Peak Output	3	3	A
Current - Output High, Low	2.5, 2.5	2.5, 2.5	A
Common Mode Transient Immunity (Min)	35	20	kV/µs
Propagation Delay tpLH / tpHL (Max)	200, 200	210, 210	ns
Pulse Width Distortion (Max)	70	65	ns
Rise / Fall Time (Typ)	43, 40	38, 24	ns
Voltage - Forward (Vf) (Typ)	1.55	1.5	V
Current - DC Forward (If) (Max)	25	25	mA
Voltage - Output Supply	15 to 30	10 to 30	V
Operating Temperature Range	-40 to 105	-40 to 100	°C
Package / Case	6-SOIC (0.268", 6.80mm Width)	6-SOIC (0.268", 6.80mm Width)	—
Mounting Type	Surface Mount	Surface Mount	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	—
REACH Status	REACH Unaffected	REACH Unaffected	—

Engineering Selection Recommendations

Both the ACPL-W341-000E and FOD8342T are Active product status components with full regulatory compliance. Selection between these parts should be based on the following factors:

ACPL-W341-000E (Broadcom) is suitable when:

Common mode transient immunity of 35 kV/µs is required
Operating temperature range extending to 105°C is necessary
Output supply voltage minimum of 15V is acceptable

FOD8342T (onsemi) is suitable when:

Common mode transient immunity of 20 kV/µs meets application requirements
Operating temperature range to 100°C is sufficient
Output supply voltage can operate from 10V minimum, providing greater flexibility in lower-voltage applications
Faster fall time (24ns vs 40ns) is beneficial for specific switching applications

Both parts carry identical isolation voltage rating, output current capability, package geometry, and regulatory certifications (RoHS3, REACH Unaffected, MSL 1). Propagation delay differences are within 10ns maximum, and pulse width distortion differs by 5ns maximum.

Frequently Asked Questions (FAQ)

Q: Can FOD8342T directly replace ACPL-W341-000E in existing designs?

A: Direct replacement is possible when the application does not require the higher common mode transient immunity (35 kV/µs) of the ACPL-W341-000E or operating temperatures above 100°C. Both parts use identical 6-SOIC package geometry and have equivalent output current ratings. Verify that the lower minimum output supply voltage (10V vs 15V) does not conflict with circuit design requirements.

Q: What are the key differences between these two parts?

A: The primary differences are common mode transient immunity (ACPL-W341-000E: 35 kV/µs; FOD8342T: 20 kV/µs), maximum operating temperature (ACPL-W341-000E: 105°C; FOD8342T: 100°C), and minimum output supply voltage (ACPL-W341-000E: 15V; FOD8342T: 10V). Propagation delay and pulse width distortion are comparable within engineering tolerances.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both ACPL-W341-000E and FOD8342T are RoHS3 compliant and REACH unaffected, with MSL rating of 1 (unlimited moisture sensitivity level).

Q: What is the package compatibility between these parts?

A: Both parts use the 6-SOIC (0.268", 6.80mm Width) surface mount package. PCB footprints and land patterns are identical, allowing direct physical substitution without layout modifications.

Q: Which part should be selected for high-speed switching applications?

A: FOD8342T exhibits faster fall time (24ns typical vs 40ns for ACPL-W341-000E), which may be advantageous in high-frequency switching circuits. However, both parts maintain propagation delay specifications within 10ns of each other, and selection should be based on the specific timing requirements of the application circuit.

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