SS26T3H Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS26T3H is a 60V, 2A Schottky rectifier diode manufactured by onsemi in a Surface Mount SMB (DO-214AA) package. This component is classified as obsolete, indicating discontinuation from the manufacturer. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this diode specification.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	60	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	630 mV @ 2 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	200	µA @ 60 V
Mounting Type	Surface Mount	—
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-55°C ~ 150°C	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the SS26T3H is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 60 V
Current - Average Rectified (Io): 2 A
Technology: Schottky
Mounting Type: Surface Mount
Package / Case: DO-214AA, SMB
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Acceptable Variation Parameters:

Voltage - Forward (Vf) (Max) @ If: Up to 700 mV @ 2 A (original specification: 630 mV)
Current - Reverse Leakage @ Vr: Up to 400 µA @ 60 V (original specification: 200 µA)
Operating Temperature - Junction: Range may vary within industrial and automotive specifications

Substitute parts identified below maintain electrical compatibility within these defined tolerances while offering active product status and improved supply availability.

Parameter Comparison

Parameter	SS26T3H (Main)	SS26T3G	SS26-E3/52T	SS26H
Manufacturer	onsemi	onsemi	Vishay General Semiconductor - Diodes Division	Taiwan Semiconductor Corporation
Product Status	Obsolete	Active	Active	Active
Voltage - DC Reverse (Vr) (Max)	60 V	60 V	60 V	60 V
Current - Average Rectified (Io)	2 A	2 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	630 mV @ 2 A	630 mV @ 2 A	700 mV @ 2 A	700 mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	200 µA @ 60 V	200 µA @ 60 V	400 µA @ 60 V	400 µA @ 60 V
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-65°C ~ 125°C	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	Vendor Undefined	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging Option	—	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)
Automotive Qualification	—	—	—	AEC-Q101

Engineering Selection Recommendations

Primary Substitute: SS26T3G

The SS26T3G is the direct equivalent manufactured by onsemi. This part maintains identical electrical specifications to the SS26T3H, including forward voltage (630 mV @ 2 A) and reverse leakage current (200 µA @ 60 V). The SS26T3G holds active product status with substantial inventory availability (35,300 pcs), ensuring supply continuity. Moisture sensitivity level is defined as MSL 1 (Unlimited), providing superior handling characteristics compared to the vendor-undefined MSL of the original part. This substitution requires no circuit redesign or thermal analysis modifications.

Secondary Substitute: SS26-E3/52T

The SS26-E3/52T, manufactured by Vishay General Semiconductor - Diodes Division, provides functional equivalence with acceptable parameter variations. Forward voltage increases to 700 mV @ 2 A and reverse leakage current increases to 400 µA @ 60 V. These variations remain within acceptable operating margins for most applications. The operating temperature range is -65°C to 125°C, which is narrower than the original specification. This part is active with 24,539 pcs in inventory and is ROHS3 compliant.

Tertiary Substitute: SS26H

The SS26H, manufactured by Taiwan Semiconductor Corporation, is an active product with AEC-Q101 automotive qualification. This part is suitable for automotive applications requiring formal qualification documentation. Forward voltage and reverse leakage current specifications match the SS26-E3/52T (700 mV @ 2 A and 400 µA @ 60 V respectively). Operating temperature range is -55°C to 150°C, matching the original part. Inventory availability is 6,772 pcs. Selection of this part is appropriate when automotive-grade components are mandated by design or procurement specifications.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can SS26T3G be used as a direct replacement for SS26T3H without circuit modifications?

A: Yes. The SS26T3G maintains identical electrical specifications across all critical parameters: 60V reverse voltage, 2A average rectified current, 630 mV forward voltage @ 2A, and 200 µA reverse leakage @ 60V. Both parts use the DO-214AA (SMB) package and operate across -55°C to 150°C. No circuit redesign is required.

Q: What is the difference between SS26T3G and SS26-E3/52T?

A: Both parts meet the 60V, 2A Schottky diode specification and use identical packaging. The SS26-E3/52T exhibits higher forward voltage (700 mV vs. 630 mV @ 2A) and higher reverse leakage current (400 µA vs. 200 µA @ 60V). The SS26-E3/52T operating temperature range is -65°C to 125°C, compared to -55°C to 150°C for SS26T3G. Selection depends on thermal and leakage current requirements of the specific application.

Q: Is SS26H suitable for automotive applications?

A: Yes. The SS26H carries AEC-Q101 automotive qualification, making it appropriate for automotive-grade designs. It maintains the same 60V, 2A specifications and DO-214AA package as the original part. Forward voltage and reverse leakage current specifications are identical to the SS26-E3/52T (700 mV @ 2A and 400 µA @ 60V).

Q: What does MSL 1 (Unlimited) mean for the substitute parts?

A: Moisture Sensitivity Level 1 (Unlimited) indicates that the component has minimal moisture absorption risk and does not require special moisture control during storage or handling. This is superior to the vendor-undefined MSL of the original SS26T3H, providing more predictable supply chain handling requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts (SS26T3G, SS26-E3/52T, and SS26H) are ROHS3 compliant and REACH unaffected, maintaining regulatory alignment with the original SS26T3H component.

Q: Can I use SS26-E3/52T in a high-temperature application requiring 150°C operation?

A: No. The SS26-E3/52T maximum operating temperature is 125°C. For applications requiring operation up to 150°C, use SS26T3G or SS26H, both of which support -55°C to 150°C operating range.

Q: What packaging options are available for each substitute?

A: SS26T3G is available in Cut Tape (CT) and Digi-Reel® packaging. SS26-E3/52T is available in Cut Tape (CT) and Digi-Reel® packaging. SS26H is available in Tape & Reel (TR) packaging. Packaging selection depends on manufacturing process requirements and component handling systems.

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