SS19LHRFG Equivalent & Substitute Parts

Part Overview

The SS19LHRFG is a Schottky rectifier diode rated for 90 V DC reverse voltage and 1 A average rectified current in a Sub SMA surface mount package. This component is classified as Active product status and carries AEC-Q101 automotive qualification. The SS19LHRFG is suitable for new designs requiring automotive-grade Schottky diode functionality.

Substitute parts become necessary when the primary part number reaches end-of-life status, inventory constraints occur, or design flexibility is required across manufacturing locations. The SS19L represents a parametrically equivalent alternative with identical electrical specifications but carries a Not For New Designs product status, making it suitable only for legacy system support or inventory management purposes.

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 eligibility for the SS19LHRFG is determined by strict parametric matching across the following criteria:

Electrical Parameters (Critical):

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 & Environmental Parameters (Critical):

Package / Case: DO-219AB
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C to 150°C
Technology: Schottky

Compliance Parameters:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

The SS19L meets all electrical, mechanical, and compliance parameters specified for the SS19LHRFG. The primary distinction is product status classification: SS19LHRFG is Active (suitable for new designs), while SS19L is Not For New Designs (suitable for legacy applications and inventory management).

Parameter Comparison

Parameter	SS19LHRFG (Main)	SS19L (Substitute)	Match Status
Voltage - DC Reverse (Vr) (Max)	90 V	90 V	Identical
Current - Average Rectified (Io)	1 A	1 A	Identical
Voltage - Forward (Vf) (Max) @ If	800 mV @ 1 A	800 mV @ 1 A	Identical
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Identical
Current - Reverse Leakage @ Vr	50 µA @ 90 V	50 µA @ 90 V	Identical
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	Identical
Package / Case	DO-219AB	DO-219AB	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Technology	Schottky	Schottky	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
Product Status	Active	Not For New Designs	Different
Qualification	AEC-Q101	Not specified	Different

Engineering Selection Recommendations

For New Designs: The SS19LHRFG is the appropriate selection. It carries Active product status and AEC-Q101 automotive qualification, ensuring long-term availability and compliance with automotive industry standards.

For Legacy System Support: The SS19L is electrically and mechanically equivalent to the SS19LHRFG and maintains ROHS3 compliance and MSL 1 rating. However, its Not For New Designs status indicates limited future availability. Use SS19L only when supporting existing production runs or legacy applications where design changes are not feasible.

Compliance Considerations: Both parts are ROHS3 compliant and REACH unaffected. The SS19LHRFG includes AEC-Q101 qualification, which is relevant for automotive applications. The SS19L does not specify AEC-Q101 qualification in the provided data.

Frequently Asked Questions (FAQ)

Q: Can SS19L be used as a direct replacement for SS19LHRFG in new designs?

A: No. While SS19L is electrically and mechanically equivalent, it carries Not For New Designs product status. New designs must use SS19LHRFG, which is Active and carries AEC-Q101 automotive qualification.

Q: Are the electrical characteristics identical between SS19LHRFG and SS19L?

A: Yes. Both parts share identical specifications for voltage rating (90 V), current rating (1 A), forward voltage (800 mV @ 1 A), recovery speed (≤ 500ns), reverse leakage (50 µA @ 90 V), and operating temperature range (-55°C to 150°C).

Q: Do both parts use the same package?

A: Yes. Both SS19LHRFG and SS19L use the DO-219AB package in Sub SMA form factor with surface mount mounting type. PCB layout and assembly processes are compatible.

Q: What is the difference in packaging options between these parts?

A: SS19LHRFG is specified with standard packaging. SS19L is available in Cut Tape (CT) and Digi-Reel® packaging options, providing flexibility for different procurement and assembly workflows.

Q: Are both parts suitable for automotive applications?

A: SS19LHRFG carries AEC-Q101 automotive qualification and is suitable for automotive applications. SS19L does not specify AEC-Q101 qualification in the provided data and should be evaluated separately for automotive use.

Q: What is the inventory status for each part?

A: SS19LHRFG has 869 pieces in stock. SS19L has 7600 pieces in stock. Inventory levels are subject to change and should be verified at time of procurement.

Q: Can SS19L be used in existing production if SS19LHRFG becomes unavailable?

A: SS19L is electrically and mechanically equivalent and maintains ROHS3 compliance. However, the Not For New Designs status and absence of specified AEC-Q101 qualification require engineering evaluation before use in production. Consult with your quality and compliance teams.

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