SS310 R7 Equivalent & Substitute Parts

Part Overview

The SS310 R7 is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100 V DC reverse voltage and 3 A average rectified current in a surface mount DO-214AB (SMC) package. This component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent substitute parts for ongoing production and maintenance applications. Equivalent alternatives maintain identical electrical specifications and package form factors while offering active product status and improved supply chain availability.

Substiute Parts

SS310 R7

Taiwan Semiconductor CorporationIn Stock: 1080SS310 R7 Datasheet

Current PartRFQ

SS310H

Taiwan Semiconductor CorporationIn Stock: 3784SS310H Datasheet

Parametric EquivalentRFQ

SK310HE3-TP

Micro Commercial CoIn Stock: 3661SK310HE3-TP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SS310 R7 are identified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Primary Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 100 V
• Current - Average Rectified (Io): 3 A
• Voltage - Forward (Vf) (Max) @ If: 850 mV @ 3 A
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 100 µA @ 100 V
• Package / Case: DO-214AB, SMC
• Operating Temperature - Junction: -55°C to 150°C
• Technology: Schottky

All identified substitute parts meet these electrical specifications and package requirements. Substitutes differ in product status (active versus discontinued), packaging format (Tape & Reel versus bulk), and optional automotive qualifications.

Parameter Comparison

Engineering Selection Recommendations

SS310H (Taiwan Semiconductor Corporation)

The SS310H is an active product offering identical electrical specifications to the SS310 R7. This substitute is qualified to automotive grade AEC-Q101 standard and is available in Tape & Reel packaging format. The SS310H provides enhanced supply chain continuity with 3715 units in stock inventory. Selection of SS310H is appropriate for applications requiring Taiwan Semiconductor Corporation sourcing or where automotive qualification is mandated.

SK310HE3-TP (Micro Commercial Co)

The SK310HE3-TP is an active product from an alternative manufacturer (Micro Commercial Co) with identical electrical specifications and automotive grade AEC-Q101 qualification. This substitute provides additional parametric data (Capacitance @ Vr, F: 250pF @ 4V, 1MHz) and is available in Tape & Reel packaging with 3588 units in stock inventory. Selection of SK310HE3-TP is appropriate for applications permitting multi-source component strategies or where Micro Commercial Co qualification is acceptable.

Both substitute parts maintain full compliance with RoHS3 and REACH requirements, identical moisture sensitivity classification, and matching thermal operating ranges.

Frequently Asked Questions (FAQ)

Q: Can SS310H directly replace SS310 R7 in existing designs?

A: Yes. The SS310H maintains identical electrical specifications across all critical parameters: 100 V reverse voltage rating, 3 A average rectified current, 850 mV forward voltage drop at 3 A, fast recovery switching speed, and reverse leakage current. Both components use the DO-214AB (SMC) surface mount package with identical pinout and footprint. No circuit redesign is required.

Q: What is the difference between SS310H and SK310HE3-TP?

A: Both parts meet identical electrical specifications and automotive AEC-Q101 qualification. The primary differences are manufacturer (Taiwan Semiconductor Corporation versus Micro Commercial Co) and documented capacitance specification (SK310HE3-TP specifies 250pF @ 4V, 1MHz; SS310H does not provide this parameter). Both are available in Tape & Reel packaging and maintain equivalent performance in circuit applications.

Q: Are there packaging format differences between these substitutes?

A: The SS310 R7 original part does not specify packaging format. Both substitute parts (SS310H and SK310HE3-TP) are supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly. The physical component package remains DO-214AB (SMC) for all three parts, ensuring identical PCB footprint compatibility.

Q: Do these substitutes meet automotive qualification requirements?

A: Both SS310H and SK310HE3-TP carry automotive grade classification with AEC-Q101 qualification. The original SS310 R7 does not specify automotive qualification. If automotive qualification is required for the application, either substitute part satisfies this requirement.

Q: What is the moisture sensitivity classification for these parts?

A: All three parts (SS310 R7, SS310H, and SK310HE3-TP) are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These components do not require special moisture control during storage, handling, or assembly.

Q: Are these parts RoHS and REACH compliant?

A: Yes. All three parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.