HS1JL Equivalent & Substitute Parts

Part Overview

The HS1JL is a fast recovery rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 600V DC reverse voltage and 1A average rectified current. This surface mount component features a 75 nanosecond reverse recovery time and is packaged in SOD-123 configuration. The HS1JL carries a "Not For New Designs" product status, indicating that this part number is no longer recommended for new circuit development. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and transition to actively supported alternatives that meet identical or superior electrical specifications.

Substiute Parts

HS1JL

Taiwan Semiconductor CorporationIn Stock: 20815HS1JL Datasheet

Current PartRFQ

HS1JLW

Taiwan Semiconductor CorporationIn Stock: 20919HS1JLW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HS1JL is determined by matching the following critical electrical and mechanical parameters:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 600 V
• Current - Average Rectified (Io): 1 A
• Reverse Recovery Time (trr): 75 ns
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA
• Mounting Type: Surface Mount
• Technology: Standard

Acceptable Variation Parameters:

• Voltage - Forward (Vf) (Max) @ If: Equal or lower values acceptable
• Current - Reverse Leakage @ Vr: Equal or lower values acceptable
• Capacitance @ Vr, F: Minor variations acceptable
• Operating Temperature - Junction: Equal or higher maximum temperature acceptable
• Package / Case: Related surface mount packages acceptable (SOD-123, SOD-123W)

The HS1JLW qualifies as a direct substitute based on identical voltage, current, and recovery time specifications, with improvements in reverse leakage characteristics and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: HS1JLW

The HS1JLW is the recommended substitute for the HS1JL in all applications where the HS1JL was previously specified. This recommendation is based on the following engineering factors:

Electrical Equivalence: The HS1JLW maintains identical voltage rating (600V), current rating (1A), forward voltage drop (1.7V @ 1A), and reverse recovery time (75ns). These parameters are critical for circuit performance and are fully matched.

Improved Characteristics: The HS1JLW demonstrates superior reverse leakage current (1µA versus 5µA at 600V), indicating lower standby power dissipation. The extended operating temperature range (-55 to 175°C versus -55 to 150°C) provides additional thermal margin for high-temperature applications.

Product Status Advantage: The HS1JLW carries "Active" product status, ensuring continued manufacturing support, availability, and long-term supply chain stability. The HS1JL "Not For New Designs" status indicates end-of-life trajectory.

Compliance Alignment: Both parts maintain ROHS3 compliance, REACH unaffected status, and identical moisture sensitivity classification (MSL 1), ensuring regulatory and environmental compatibility.

Package Consideration: The HS1JLW uses SOD-123W packaging, a standard surface mount variant compatible with existing pick-and-place equipment and PCB layouts designed for SOD-123 footprints. No redesign is required for package accommodation.

Frequently Asked Questions (FAQ)

Q: Can the HS1JLW directly replace the HS1JL without circuit modification?

A: Yes. The HS1JLW is electrically equivalent to the HS1JL across all critical parameters: reverse voltage (600V), forward current (1A), forward voltage drop (1.7V @ 1A), and reverse recovery time (75ns). No circuit redesign is necessary.

Q: What is the difference between SOD-123 and SOD-123W packaging?

A: SOD-123W is a wider variant of the SOD-123 package, maintaining the same electrical performance and pin configuration. Both are standard surface mount packages compatible with automated assembly processes. PCB footprints designed for SOD-123 will accommodate SOD-123W components.

Q: Why does the HS1JL have "Not For New Designs" status?

A: This status indicates that the manufacturer is transitioning away from this part number. New circuit designs should specify the HS1JLW to ensure long-term availability and manufacturing support. Existing designs using the HS1JL can transition to the HS1JLW without performance impact.

Q: Is the improved reverse leakage current in the HS1JLW significant?

A: The HS1JLW exhibits 1µA reverse leakage compared to 5µA in the HS1JL at 600V. This improvement reduces standby power dissipation and is beneficial in low-power or battery-operated applications. For most general-purpose rectification circuits, this difference is negligible.

Q: Are there any thermal performance differences between these parts?

A: The HS1JLW supports operation to 175°C junction temperature, compared to 150°C for the HS1JL. This 25°C additional margin provides improved reliability in high-temperature environments and reduces thermal stress during transient conditions.

Q: What compliance certifications apply to both parts?

A: Both the HS1JL and HS1JLW are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (unlimited moisture sensitivity). They meet the same regulatory and environmental standards for industrial and commercial applications.

Q: Can the HS1JLW be used in existing PCB designs without layout changes?

A: Yes. The SOD-123W package is compatible with SOD-123 footprints. No PCB redesign or layout modification is required for substitution.