SS19L RFG Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS19L RFG is a surface mount Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 90 V DC reverse voltage and 1 A average rectified current. This component is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Identification of equivalent and substitute parts becomes necessary when the primary part number is unavailable, when alternative packaging formats are required, or when design flexibility permits selection from qualified alternatives that meet identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
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
Mounting Type	Surface Mount
Package / Case	DO-219AB
Operating Temperature - Junction	-55°C ~ 150°C
Technology	Schottky
RoHS Status	RoHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the SS19L RFG is determined by electrical parameter equivalence and mechanical compatibility. The critical parameters that define substitutability are:

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
Package / Case: DO-219AB (Sub SMA)
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C ~ 150°C

The SS19L part number represents the parametric equivalent within the Taiwan Semiconductor Corporation product line. This part maintains identical electrical ratings and mechanical specifications, with availability in alternative packaging formats (Cut Tape and Digi-Reel).

Parameter Comparison

Parameter	SS19L RFG (Main)	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
Mounting Type	Surface Mount	Surface Mount
Package / Case	DO-219AB	DO-219AB
Supplier Device Package	Sub SMA	Sub SMA
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C
RoHS Status	RoHS3 Compliant	RoHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The SS19L RFG and SS19L are parametrically identical Schottky rectifier diodes from Taiwan Semiconductor Corporation. Both parts meet RoHS3 compliance requirements and REACH unaffected status, suitable for applications requiring environmental and regulatory adherence.

The primary distinction between these parts is product status and packaging format availability. The SS19L RFG maintains Active product status, while the SS19L is designated as Not For New Designs. For new design implementations, the SS19L RFG is the appropriate selection. For existing designs or applications where component availability is constrained, the SS19L remains electrically and mechanically compatible.

The SS19L is available in Cut Tape (CT) and Digi-Reel packaging formats, providing supply chain flexibility when standard packaging configurations are required.

Frequently Asked Questions (FAQ)

Q: Are SS19L RFG and SS19L electrically interchangeable?

A: Yes. Both parts are manufactured by Taiwan Semiconductor Corporation and share identical electrical specifications: 90 V reverse voltage rating, 1 A average rectified current, 800 mV forward voltage drop at 1 A, and 50 µA reverse leakage current at 90 V. Fast recovery characteristics (≤ 500ns) are equivalent across both part numbers.

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

A: The primary differences are product status and packaging availability. SS19L RFG is Active product status, while SS19L is Not For New Designs. SS19L is available in Cut Tape and Digi-Reel packaging formats. Both parts use identical DO-219AB (Sub SMA) package and mounting technology.

Q: Can SS19L be used in place of SS19L RFG in new designs?

A: SS19L is designated Not For New Designs. For new design implementations, SS19L RFG is the recommended selection. SS19L remains available for legacy design support and existing applications.

Q: Are there package compatibility considerations between these parts?

A: Both parts use DO-219AB (Sub SMA) surface mount package with identical mechanical specifications. No package modification or PCB layout changes are required when substituting between these part numbers.

Q: What compliance certifications apply to both parts?

A: Both SS19L RFG and SS19L are RoHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity level rating. ECCN classification is EAR99 for both parts.

Q: What is the operating temperature range for these diodes?

A: Both parts operate across a junction temperature range of -55°C to 150°C, suitable for industrial and commercial temperature environments.

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