SS28HE3-LTP Equivalent & Substitute Parts

Part Overview

The SS28HE3-LTP is a Schottky diode rated for 80 V DC reverse voltage and 2 A average rectified current in a Surface Mount DO-214AC (SMA) package. This component is classified as Obsolete, indicating discontinuation by 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 rectifier diode.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	80 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max) @ If	850 mV @ 2 A
Technology	Schottky
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	100 µA @ 80 V
Package / Case	DO-214AC, SMA
Mounting Type	Surface Mount
Operating Temperature - Junction	-55°C ~ 150°C

Substitute Part Grouping Explanation

Substitution of the SS28HE3-LTP is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

Voltage - DC Reverse (Vr) rating must equal or exceed 80 V
Current - Average Rectified (Io) must equal or exceed 2 A
Voltage - Forward (Vf) must be compatible at rated current
Technology classification must be Schottky
Speed characteristics must maintain Fast Recovery performance

Mechanical Compatibility Criteria:

Package / Case must be DO-214AC (SMA)
Mounting Type must be Surface Mount
Operating Temperature range must encompass -55°C ~ 150°C

The SS210HE3-LTP meets all substitution criteria with a higher voltage rating (100 V) while maintaining identical current capacity, forward voltage characteristics, and package specifications. This part is Active in product status and carries automotive qualification (AEC-Q101) with RoHS3 compliance.

Parameter Comparison

Parameter	SS28HE3-LTP (Main Part)	SS210HE3-LTP (Substitute)
Voltage - DC Reverse (Vr) (Max)	80 V	100 V
Current - Average Rectified (Io)	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	850 mV @ 2 A	850 mV @ 2 A
Technology	Schottky	Schottky
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	100 µA @ 80 V	100 µA @ 100 V
Capacitance @ Vr, F	90 pF @ 4V, 1MHz	70 pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA	DO-214AC, SMA
Mounting Type	Surface Mount	Surface Mount
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C
Product Status	Obsolete	Active

Engineering Selection Recommendations

The SS210HE3-LTP is the direct substitute for the obsolete SS28HE3-LTP. Selection of this substitute part is supported by the following factors:

Electrical Compatibility: The SS210HE3-LTP maintains identical current capacity (2 A) and forward voltage characteristics (850 mV @ 2 A) while providing a higher reverse voltage rating (100 V versus 80 V). This higher voltage rating ensures operation within safe margins in applications originally designed for the SS28HE3-LTP.

Product Status: The SS210HE3-LTP is Active in production status with confirmed inventory availability (2998 Pcs), ensuring long-term supply continuity compared to the Obsolete status of the original part.

Compliance and Qualification: The SS210HE3-LTP carries AEC-Q101 automotive qualification and RoHS3 compliance certification, providing enhanced reliability documentation and regulatory alignment for applications requiring these standards.

Package and Thermal Compatibility: Identical DO-214AC (SMA) Surface Mount packaging and operating temperature range (-55°C ~ 150°C) ensure direct mechanical and thermal compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can the SS210HE3-LTP directly replace the SS28HE3-LTP in existing designs?

A: Yes. The SS210HE3-LTP is electrically and mechanically compatible. Both parts share identical current capacity (2 A), forward voltage (850 mV @ 2 A), package type (DO-214AC, SMA), and operating temperature range (-55°C ~ 150°C). The higher reverse voltage rating (100 V versus 80 V) of the substitute part provides additional design margin.

Q: What is the primary difference between these two parts?

A: The primary difference is the Voltage - DC Reverse (Vr) rating: SS28HE3-LTP is rated at 80 V, while SS210HE3-LTP is rated at 100 V. The SS210HE3-LTP also features lower capacitance (70 pF versus 90 pF @ 4V, 1MHz) and carries automotive qualification (AEC-Q101).

Q: Is the SS210HE3-LTP suitable for applications originally designed for 80 V operation?

A: Yes. The higher voltage rating of the SS210HE3-LTP (100 V) is suitable for applications originally rated at 80 V. The substitute part operates safely within the original design specifications while providing additional voltage margin.

Q: Are there packaging differences between these parts?

A: No. Both the SS28HE3-LTP and SS210HE3-LTP use identical DO-214AC (SMA) Surface Mount packaging. The SS210HE3-LTP is supplied in Tape & Reel (TR) format, which is standard for production quantities.

Q: What compliance certifications does the substitute part carry?

A: The SS210HE3-LTP carries AEC-Q101 automotive qualification and RoHS3 compliance certification. The original SS28HE3-LTP does not list these certifications.

Q: Are there any thermal operating range differences?

A: No. Both parts share identical operating temperature ranges: -55°C ~ 150°C junction temperature.

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