SS19L RHG Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS19L RHG is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, designed for surface mount applications in the Sub SMA package format. This component operates at 90 V DC reverse voltage with 1 A average rectified current capability and features fast recovery characteristics suitable for high-frequency switching applications.

The SS19L RHG is classified as Active product status. Identification of equivalent and substitute parts is necessary to ensure design continuity, manage supply chain alternatives, and maintain performance specifications across manufacturing batches and procurement cycles.

Substiute Parts

SS19L RHG

Taiwan Semiconductor CorporationIn Stock: 804SS19L RHG Datasheet

Current PartRFQ

SS19L

Taiwan Semiconductor CorporationIn Stock: 7640SS19L Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SS19L RHG is determined by electrical and mechanical parameter equivalence within the Schottky diode rectifier category. The critical parameters that establish substitution eligibility are:

Electrical Parameters:

• Voltage - DC Reverse (Vr) (Max): 90 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 800 mV @ 1 A
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 50 µA @ 90 V

Mechanical Parameters:

• Mounting Type: Surface Mount
• Package / Case: DO-219AB
• Supplier Device Package: Sub SMA

Environmental & Compliance Parameters:

• Operating Temperature - Junction: -55°C to 150°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Parts meeting all specified electrical, mechanical, and environmental parameters are classified as parametric equivalents and direct substitutes for the SS19L RHG.

Parameter Comparison

Engineering Selection Recommendations

The SS19L (substitute part) is a parametric equivalent to the SS19L RHG, meeting all specified electrical, mechanical, and environmental requirements. Both parts are manufactured by Taiwan Semiconductor Corporation and share identical core specifications for voltage, current, speed, and thermal operating range.

The primary distinction between the two parts is product status: the SS19L RHG maintains Active status, while the SS19L substitute is designated as Not For New Designs. This status difference reflects manufacturing lifecycle considerations and does not indicate functional or performance degradation.

Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for industrial and commercial applications. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints during storage and handling.

Selection between the SS19L RHG and SS19L should be based on supply availability, procurement lead times, and design lifecycle phase. For new designs, the Active status of SS19L RHG is the preferred selection. For existing designs or applications where supply of the primary part is constrained, the SS19L substitute provides equivalent electrical and mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can the SS19L substitute be used in place of the SS19L RHG without circuit modification?

A: Yes. The SS19L substitute meets all specified electrical parameters, including reverse voltage (90 V), average rectified current (1 A), forward voltage (800 mV @ 1 A), and reverse leakage current (50 µA @ 90 V). The mechanical package (DO-219AB Sub SMA) and mounting type (Surface Mount) are identical, enabling direct substitution without circuit redesign.

Q: What is the significance of the "Not For New Designs" status on the SS19L substitute?

A: The "Not For New Designs" designation indicates that the SS19L substitute is in the later stages of its manufacturing lifecycle. This status does not reflect performance degradation or functional limitations. The part remains fully functional and compliant with all specified parameters. This designation is used to guide procurement strategy, typically recommending the Active status part (SS19L RHG) for new product development while permitting the substitute for existing designs or supply continuity.

Q: Are there package or pinout differences between the SS19L RHG and SS19L?

A: No. Both parts use the DO-219AB package format with Sub SMA supplier device package designation. Pinout, footprint, and mechanical dimensions are identical, ensuring direct board-level compatibility.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both the SS19L RHG and SS19L are ROHS3 compliant, REACH Unaffected, and rated for operating junction temperatures from -55°C to 150°C. Both parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity constraints.

Q: What inventory considerations apply to these parts?

A: The SS19L RHG is listed with 764 pieces in stock. The SS19L substitute is available with 7600 pieces in stock. Inventory levels may influence procurement decisions when supply continuity is a priority.

Q: Are there any electrical performance differences between the two parts?

A: No. Both parts are specified identically for all electrical parameters: 90 V reverse voltage, 1 A average rectified current, 800 mV forward voltage at 1 A, fast recovery speed (≤ 500ns), and 50 µA reverse leakage current at 90 V.