HCPL-J314#300 Equivalent & Substitute Parts

Part Overview

The HCPL-J314#300 is a 3750Vrms optical isolation gate driver manufactured by Broadcom Limited, designed for single-channel high-voltage switching applications. This component features 600mA peak output current capability and operates across a -40°C to 100°C temperature range. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for new designs or production continuity.

Substiute Parts

HCPL-J314#300

Broadcom LimitedIn Stock: 850HCPL-J314#300 Datasheet

Current PartRFQ

HCPL-J314-300E

Broadcom LimitedIn Stock: 5822HCPL-J314-300E Datasheet

DirectRFQ

LTV-3150S-TA1

Lite-On Inc.In Stock: 2424LTV-3150S-TA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HCPL-J314#300 are identified based on the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Single-channel optical isolation gate driver topology
• Isolation voltage rating of 3750Vrms or higher
• Peak output current capability of 600mA or greater
• Common mode transient immunity of 15kV/µs or higher
• 8-pin surface mount package (8-SMD, Gull Wing)
• Operating temperature range encompassing -40°C to 100°C
• Output supply voltage compatibility within 10V ~ 30V range

Direct Manufacturer Substitute (Broadcom): HCPL-J314-300E maintains identical electrical specifications and represents the active production equivalent with improved RoHS3 compliance status.

Cross-Manufacturer Substitute (Lite-On): LTV-3150S-TA1 exceeds the isolation voltage requirement (5000Vrms vs. 3750Vrms), provides higher peak output current (1A vs. 600mA), and delivers faster propagation delay (400ns vs. 700ns), making it suitable for applications requiring enhanced performance margins.

Parameter Comparison

Engineering Selection Recommendations

HCPL-J314-300E is the primary substitute for direct replacement applications. This Broadcom part maintains identical electrical specifications and package configuration while offering active product status and ROHS3 compliance, eliminating regulatory and supply chain concerns associated with the discontinued HCPL-J314#300.

LTV-3150S-TA1 serves as an enhanced alternative for applications where improved performance margins are beneficial. The Lite-On device provides higher isolation voltage (5000Vrms), increased peak output current (1A), and faster propagation delay (400ns), all within the same 8-SMD Gull Wing package. The minimum output supply voltage requirement increases to 15V, which must be verified against circuit design specifications. This part is suitable for new designs or production transitions requiring superior performance characteristics.

Both substitute parts maintain single-channel optical isolation topology, surface mount packaging, and operating temperature ranges compatible with the original HCPL-J314#300 application envelope.

Frequently Asked Questions (FAQ)

Q: Can HCPL-J314-300E be used as a direct drop-in replacement for HCPL-J314#300?

A: Yes. HCPL-J314-300E maintains identical electrical specifications, package configuration (8-SMD Gull Wing), and pin assignments. The primary difference is product status (active vs. discontinued) and improved RoHS3 compliance. No circuit modifications are required.

Q: What are the key differences between HCPL-J314-300E and LTV-3150S-TA1?

A: Both are single-channel optical isolation gate drivers in 8-SMD Gull Wing packages. LTV-3150S-TA1 provides higher isolation voltage (5000Vrms vs. 3750Vrms), greater peak output current (1A vs. 600mA), and faster propagation delay (400ns vs. 700ns). The LTV-3150S-TA1 requires a minimum output supply voltage of 15V, compared to 10V for the HCPL-J314-300E. Common mode transient immunity is lower on the LTV-3150S-TA1 (15kV/µs vs. 25kV/µs).

Q: Are package dimensions identical between all three parts?

A: All three parts use 8-SMD Gull Wing surface mount packages. Physical footprint compatibility is maintained across HCPL-J314#300, HCPL-J314-300E, and LTV-3150S-TA1, allowing PCB reuse without layout modifications.

Q: Which substitute is recommended for new product designs?

A: HCPL-J314-300E is recommended for designs requiring specification equivalence to the original HCPL-J314#300. LTV-3150S-TA1 is recommended for new designs where enhanced isolation voltage, output current, and propagation delay performance provide system-level benefits and the 15V minimum supply voltage requirement is accommodated.

Q: Do both substitutes meet the same regulatory certifications as the original part?

A: HCPL-J314-300E maintains identical approval agencies (CSA, IEC/EN/DIN, UR). LTV-3150S-TA1 carries cUR, IEC/EN/DIN, and UR certifications. Both parts are ROHS3 compliant, whereas the original HCPL-J314#300 is RoHS non-compliant.