HCPL-814-W6AE Equivalent & Substitute Parts

Part Overview

The HCPL-814-W6AE is an optoisolator with transistor output manufactured by Broadcom Limited. This component provides 5000Vrms isolation in a 4-DIP package and is designed for applications requiring galvanic isolation between input and output circuits. The part is currently active in production with 975 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Key Parameters

Parameter	Value
Voltage - Isolation	5000Vrms
Number of Channels	1
Output Type	Transistor
Current Transfer Ratio (Min)	50% @ 1mA
Current Transfer Ratio (Max)	150% @ 1mA
Voltage - Output (Max)	35V
Current - Output / Channel	50mA
Vce Saturation (Max)	200mV
Operating Temperature	-30°C ~ 100°C
Mounting Type	Through Hole
Package / Case	4-DIP
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the HCPL-814-W6AE is determined by the following critical parameters:

Voltage - Isolation: Must equal 5000Vrms
Number of Channels: Must equal 1
Output Type: Must be Transistor
Mounting Type: Must be Through Hole
Package / Case: Must be 4-DIP
Voltage - Output (Max): Must be ≥ 35V
Current - Output / Channel: Must be ≥ 50mA
Vce Saturation (Max): Must be ≤ 200mV

The LTV-814 manufactured by Lite-On Inc. meets all substitution criteria. Both parts share identical isolation voltage, channel count, output type, mounting configuration, and maximum output specifications. Variations in Current Transfer Ratio range and operating temperature upper limit do not prevent substitution when the application requirements fall within the overlapping parameter windows.

Parameter Comparison

Parameter	HCPL-814-W6AE (Broadcom)	LTV-814 (Lite-On)	Compatibility
Voltage - Isolation	5000Vrms	5000Vrms	Identical
Number of Channels	1	1	Identical
Output Type	Transistor	Transistor	Identical
Current Transfer Ratio (Min)	50% @ 1mA	20% @ 1mA	LTV-814 lower minimum
Current Transfer Ratio (Max)	150% @ 1mA	300% @ 1mA	LTV-814 higher maximum
Rise / Fall Time (Typ)	4µs, 3µs	4µs, 3µs	Identical
Input Type	AC, DC	AC, DC	Identical
Voltage - Output (Max)	35V	35V	Identical
Current - Output / Channel	50mA	50mA	Identical
Voltage - Forward (Vf) (Typ)	1.2V	1.2V	Identical
Current - DC Forward (If) (Max)	50 mA	50 mA	Identical
Vce Saturation (Max)	200mV	200mV	Identical
Operating Temperature	-30°C ~ 100°C	-30°C ~ 110°C	LTV-814 extended upper limit
Mounting Type	Through Hole	Through Hole	Identical
Package / Case	4-DIP (0.400", 10.16mm)	4-DIP (0.300", 7.62mm)	Both 4-DIP, different body length
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
REACH Status	REACH Unaffected	REACH Unaffected	Identical

Engineering Selection Recommendations

Both the HCPL-814-W6AE and LTV-814 are active production components with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. Selection between these parts should be based on:

Package Footprint: The HCPL-814-W6AE uses a 4-DIP package with 0.400" (10.16mm) body length, while the LTV-814 uses a 4-DIP package with 0.300" (7.62mm) body length. PCB layout and through-hole spacing must accommodate the selected package dimension.
Current Transfer Ratio Range: The HCPL-814-W6AE specifies a narrower CTR range (50–150% @ 1mA) compared to the LTV-814 (20–300% @ 1mA). Applications requiring tighter CTR tolerance should use the HCPL-814-W6AE.
Operating Temperature: The LTV-814 supports operation up to 110°C versus 100°C for the HCPL-814-W6AE. High-temperature applications should use the LTV-814.
Inventory Availability: The LTV-814 has significantly higher stock availability (57,024 units) compared to the HCPL-814-W6AE (975 units).

Frequently Asked Questions (FAQ)

Q: Can the LTV-814 be used as a direct replacement for the HCPL-814-W6AE?

A: The LTV-814 is electrically compatible when application requirements fall within the overlapping parameter specifications. However, the different 4-DIP package body lengths (0.400" versus 0.300") require PCB layout verification to ensure through-hole alignment and spacing compatibility.

Q: What is the primary difference in Current Transfer Ratio between these parts?

A: The HCPL-814-W6AE has a specified CTR range of 50–150% @ 1mA, while the LTV-814 ranges from 20–300% @ 1mA. The HCPL-814-W6AE provides tighter tolerance control. Applications sensitive to CTR variation should confirm the LTV-814's wider range is acceptable for their circuit design.

Q: Are both parts suitable for high-temperature applications?

A: The HCPL-814-W6AE operates from -30°C to 100°C, while the LTV-814 extends to 110°C. For applications requiring sustained operation above 100°C, the LTV-814 is the appropriate selection.

Q: Do package dimension differences affect circuit performance?

A: Package dimensions affect PCB layout and through-hole spacing but do not alter electrical performance. Both parts use 4-DIP through-hole mounting. Verify that your PCB design accommodates the specific body length of the selected part.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the HCPL-814-W6AE and LTV-814 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

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