SS19L RUG Equivalent & Substitute Parts

Part Overview

The SS19L RUG 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 is classified as a fast recovery diode with switching characteristics suitable for high-frequency rectification circuits.

The SS19L RUG is currently in Active product status. Identification of equivalent and substitute parts becomes necessary when managing inventory across multiple packaging formats, accommodating supply chain variations, or transitioning designs to alternative distribution channels while maintaining identical electrical performance.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	90	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	800 mV @ 1 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	50	µA @ 90 V
Operating Temperature - Junction	-55 to 150	°C
Package / Case	DO-219AB	—
Mounting Type	Surface Mount	—
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the SS19L RUG is determined by strict equivalence across all critical electrical parameters: reverse voltage rating (90 V), average rectified current (1 A), forward voltage drop (800 mV @ 1 A), recovery speed classification (Fast Recovery ≤ 500ns), reverse leakage current (50 µA @ 90 V), and junction temperature range (-55°C to 150°C). The package type (DO-219AB Sub SMA) and mounting method (Surface Mount) must remain constant.

The SS19L RUG is supplied in Tape & Reel (TR) packaging format. Equivalent parts with identical electrical specifications but alternative packaging formats (Cut Tape or Digi-Reel) are classified as parametric equivalents and are suitable for substitution when packaging format flexibility is acceptable within the application context.

Parameter Comparison

Parameter	SS19L RUG (Main Part)	SS19L (Substitute)
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Category	Diodes, Rectifiers	Diodes, Rectifiers
Technology	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	90 V	90 V
Current - Average Rectified (Io)	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	800 mV @ 1 A	800 mV @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	50 µA @ 90 V	50 µA @ 90 V
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C
Package / Case	DO-219AB	DO-219AB
Mounting Type	Surface Mount	Surface Mount
Supplier Device Package	Sub SMA	Sub SMA
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Packaging Format	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®
Product Status	Active	Not For New Designs

Engineering Selection Recommendations

The SS19L RUG maintains Active product status and is the primary selection for new designs and ongoing production. All electrical and thermal parameters are identical between the SS19L RUG and the SS19L substitute part, confirming full parametric equivalence.

The SS19L substitute part is designated as Not For New Designs. This status indicates that while the component remains functionally equivalent and available in inventory, Taiwan Semiconductor Corporation does not recommend its use in new design initiatives. Selection of this substitute is appropriate only for legacy system maintenance, field replacements, or applications where existing design validation has been completed with this specific part number.

The distinction between these parts is limited to packaging format: SS19L RUG is supplied in Tape & Reel format, while SS19L is supplied in Cut Tape and Digi-Reel formats. Both parts carry ROHS3 compliance and REACH Unaffected status, confirming regulatory equivalence.

Frequently Asked Questions (FAQ)

Q: Can the SS19L substitute part be used in place of the SS19L RUG in new designs?

A: No. The SS19L is designated Not For New Designs. New designs must use the SS19L RUG, which carries Active product status. The SS19L substitute is appropriate only for legacy system support and field replacements.

Q: Are the electrical specifications identical between SS19L RUG and SS19L?

A: Yes. Both parts are Schottky rectifier diodes with 90 V reverse voltage, 1 A average rectified current, 800 mV forward voltage drop at 1 A, fast recovery characteristics, and -55°C to 150°C junction temperature range. All critical electrical parameters are identical.

Q: What is the difference between SS19L RUG and SS19L?

A: The primary difference is packaging format. SS19L RUG is supplied in Tape & Reel (TR) format, while SS19L is supplied in Cut Tape (CT) and Digi-Reel® formats. The electrical specifications and DO-219AB package type are identical.

Q: Can I substitute SS19L for SS19L RUG based on packaging availability?

A: Substitution is possible only if the application does not require new design validation and the alternative packaging format is compatible with assembly processes. The SS19L Not For New Designs status must be considered in the substitution decision.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both SS19L RUG and SS19L are ROHS3 Compliant and REACH Unaffected, confirming regulatory equivalence for environmental and hazardous substance requirements.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Can these parts be used interchangeably in surface mount assembly?

A: Yes, from an electrical and thermal perspective. Both parts use identical DO-219AB Sub SMA packages and Surface Mount mounting type. Interchangeability is limited only by packaging format compatibility with specific assembly equipment and processes.

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