SS12LHRTG Equivalent & Substitute Parts

Part Overview

The SS12LHRTG is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 20 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 meets AEC-Q101 automotive qualification standards.

Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or when transitioning from legacy components to current production lines. The SS12LHRTG maintains identical electrical performance specifications across its substitute group, ensuring functional interchangeability within the defined parameter envelope.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	20	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	450	mV @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	-
Current - Reverse Leakage @ Vr	400	µA @ 20 V
Package / Case	DO-219AB	-
Mounting Type	Surface Mount	-
Operating Temperature - Junction	-55 to 125	°C
Technology	Schottky	-
RoHS Status	ROHS3 Compliant	-
Qualification	AEC-Q101	-

Substitute Part Grouping Explanation

Substitution eligibility for the SS12LHRTG is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 20 V
Package / Case: DO-219AB
Mounting Type: Surface Mount
Technology: Schottky
Operating Temperature - Junction: -55°C to 125°C minimum

Allowable Parameter Variance:

Current - Average Rectified (Io): Equal to or greater than 1 A
Voltage - Forward (Vf) (Max) @ If: Equal to or less than 450 mV
Current - Reverse Leakage @ Vr: Equal to or less than 400 µA @ 20 V

Parts meeting these criteria maintain functional compatibility and can be selected based on availability, product status, and compliance certifications.

Parameter Comparison

Parameter	SS12LHRTG (Main)	SS12L	SL02-GS08
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division
Voltage - DC Reverse (Vr) (Max)	20 V	20 V	20 V
Current - Average Rectified (Io)	1 A	1 A	1.1 A
Voltage - Forward (Vf) (Max) @ If	450 mV @ 1 A	450 mV @ 1 A	420 mV @ 1.1 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	400 µA @ 20 V	400 µA @ 20 V	250 µA @ 20 V
Package / Case	DO-219AB	DO-219AB	DO-219AB
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55°C to 125°C	-55°C to 125°C	125°C (Max)
Technology	Schottky	Schottky	Schottky
Product Status	Active	Not For New Designs	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Qualification	AEC-Q101	-	-

Engineering Selection Recommendations

SS12LHRTG (Primary Selection)

The SS12LHRTG is the recommended primary selection for new designs. This part maintains Active product status, carries AEC-Q101 automotive qualification, and is available in current production quantities (756 Pcs in stock). The component meets all ROHS3 compliance and REACH requirements.

SS12L (Legacy Equivalent)

The SS12L is a parametric equivalent manufactured by Taiwan Semiconductor Corporation with identical electrical specifications. However, this part carries Not For New Designs product status, indicating it is in legacy phase. Selection of SS12L is appropriate only for sustaining production of existing designs or when addressing supply constraints for established applications. Higher inventory availability (1440 Pcs) may support extended production runs. Tape & Reel packaging is standard for this variant.

SL02-GS08 (Cross-Manufacturer Alternative)

The SL02-GS08, manufactured by Vishay General Semiconductor - Diodes Division, provides superior electrical performance within the substitution envelope. This part delivers 1.1 A current capacity (exceeding the 1 A requirement), reduced forward voltage (420 mV versus 450 mV), and lower reverse leakage current (250 µA versus 400 µA). The SL02-GS08 maintains Active product status and ROHS3 compliance. Extensive inventory availability (43938 Pcs) supports high-volume applications. The eSMP® series designation indicates optimized surface mount characteristics. Selection of SL02-GS08 is appropriate when improved thermal performance or reduced power dissipation is beneficial to circuit design.

Frequently Asked Questions (FAQ)

Q: Can SS12L be used as a direct replacement for SS12LHRTG in new designs?

A: SS12L meets all electrical and mechanical substitution criteria and maintains identical performance specifications. However, SS12L carries Not For New Designs product status. New designs should specify SS12LHRTG or SL02-GS08 to ensure long-term supply continuity and manufacturer support.

Q: What are the key differences between SS12LHRTG and SL02-GS08?

A: Both parts meet the 20 V, 1 A core requirements and share identical DO-219AB packaging. SL02-GS08 provides enhanced performance: 1.1 A current capacity, 420 mV forward voltage (versus 450 mV), and 250 µA reverse leakage (versus 400 µA). SL02-GS08 is manufactured by Vishay and carries Active product status with extensive inventory availability.

Q: Are all three parts qualified for automotive applications?

A: SS12LHRTG carries explicit AEC-Q101 automotive qualification. SS12L and SL02-GS08 do not list AEC-Q101 qualification in the provided specifications. Automotive applications requiring AEC-Q101 certification must specify SS12LHRTG.

Q: Can SL02-GS08 be used in place of SS12LHRTG without circuit modification?

A: SL02-GS08 meets all mandatory substitution parameters: 20 V reverse voltage, DO-219AB package, surface mount configuration, and Schottky technology. The superior electrical performance (higher current, lower forward voltage, lower leakage) presents no compatibility issues. No circuit modification is required.

Q: What is the significance of the operating temperature range difference in SL02-GS08?

A: SL02-GS08 specifies 125°C maximum junction temperature, while SS12LHRTG and SS12L specify -55°C to 125°C operating range. Both parts support the same maximum temperature. SL02-GS08 does not specify minimum operating temperature in the provided data. For applications requiring operation below 0°C, verify SL02-GS08 low-temperature performance with the manufacturer.

Q: How does packaging format (Tape & Reel versus standard) affect substitution?

A: Tape & Reel (TR) packaging is a supply format variation that does not affect electrical or mechanical compatibility. Both SS12L and SL02-GS08 are available in Tape & Reel format, suitable for automated assembly processes. Component performance and pinout remain identical regardless of packaging format.

Q: What compliance certifications apply to all three parts?

A: All three parts are ROHS3 Compliant and REACH Unaffected. SS12LHRTG additionally carries AEC-Q101 automotive qualification. All parts maintain Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity constraints during storage or handling.

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