SS310F-HF Equivalent & Substitute Parts

Part Overview

The SS310F-HF is an active Schottky rectifier diode manufactured by Comchip Technology, rated for 100 V DC reverse voltage and 3 A average rectified current in a surface mount SMAF package. This component is designed for fast recovery applications with forward voltage of 850 mV at 3 A and reverse leakage current of 300 µA at 100 V. The part is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1) and operates across a junction temperature range of -55°C to 150°C.

Equivalent and substitute parts are identified based on matching electrical specifications and compatible package configurations. Alternative sources and packaging formats are available to support supply chain flexibility, design optimization, and application-specific requirements.

Substiute Parts

SS310F-HF

Comchip TechnologyIn Stock: 1153SS310F-HF Datasheet

Current PartRFQ

ACDBA3100-HF

Comchip TechnologyIn Stock: 9096ACDBA3100-HF Datasheet

Parametric EquivalentRFQ

CDBA3100-G

Comchip TechnologyIn Stock: 2341CDBA3100-G Datasheet

Parametric EquivalentRFQ

SK310A

Taiwan Semiconductor CorporationIn Stock: 2019SK310A Datasheet

Parametric EquivalentRFQ

SK310AH

Taiwan Semiconductor CorporationIn Stock: 15418SK310AH Datasheet

Parametric EquivalentRFQ

SK310AHE3-LTP

Micro Commercial CoIn Stock: 4743SK310AHE3-LTP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SS310F-HF is determined by equivalence across the following critical parameters:

• Voltage Rating: All substitute parts maintain 100 V DC reverse voltage maximum
• Current Rating: All substitute parts support 3 A average rectified current
• Forward Voltage: All substitute parts specify 850 mV maximum forward voltage at 3 A
• Recovery Speed: All substitute parts meet fast recovery specification of ≤ 500ns for currents > 200mA
• Package Compatibility: All substitute parts use DO-214AC (SMA) surface mount package
• Temperature Range: All substitute parts operate across -55°C to 150°C junction temperature
• Compliance: All substitute parts are RoHS3 compliant with MSL 1 rating

Substitute parts differ in manufacturer source, packaging format (Tape & Reel versus Cut Tape), reverse leakage current specifications, and automotive qualification status. These variations do not affect functional equivalence for standard applications but may influence selection based on supply availability, cost, and application-specific requirements.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts meet the core electrical and mechanical requirements for direct replacement of the SS310F-HF in standard applications. Selection among equivalents should be based on the following criteria:

For Standard Industrial Applications: CDBA3100-G and SK310A provide cost-effective alternatives with standard-grade qualification. Both are available in Cut Tape format for lower-volume requirements.

For Automotive Applications: ACDBA3100-HF, SK310AH, and SK310AHE3-LTP are qualified to AEC-Q101 automotive standards and are suitable for automotive-grade circuit designs. These parts carry automotive-grade designation and formal qualification documentation.

For Supply Chain Continuity: SK310AH offers the highest inventory availability (15,314 pieces) in Tape & Reel format, supporting high-volume production requirements. ACDBA3100-HF provides secondary sourcing from Comchip Technology with 9,057 pieces in stock.

For Reverse Leakage Optimization: SK310A, SK310AH, and SK310AHE3-LTP specify 100 µA reverse leakage current at 100 V, representing the lowest leakage specification among available substitutes. ACDBA3100-HF specifies 200 µA, while the main part SS310F-HF specifies 300 µA.

For Packaging Format Requirements: Tape & Reel format is available from SS310F-HF, ACDBA3100-HF, SK310AH, and SK310AHE3-LTP. Cut Tape format is available from CDBA3100-G and SK310A.

All substitute parts maintain RoHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can SS310F-HF be directly replaced with any of the listed substitute parts?

A: Yes. All listed substitute parts maintain identical voltage rating (100 V), current rating (3 A), forward voltage (850 mV @ 3 A), recovery speed (≤ 500ns), and package configuration (DO-214AC, SMA). Direct replacement is electrically and mechanically compatible for all applications within the specified operating parameters.

Q: What is the difference between Tape & Reel and Cut Tape packaging formats?

A: Tape & Reel format is supplied on continuous carrier tape wound on reels, suitable for automated assembly processes and high-volume production. Cut Tape format is supplied as individual segments cut from the carrier tape, suitable for lower-volume applications and manual assembly. Both formats contain identical components; the difference is in delivery and handling method.

Q: Why do substitute parts have different reverse leakage current specifications?

A: Reverse leakage current variation reflects manufacturing process differences between suppliers and product grades. SS310F-HF specifies 300 µA, ACDBA3100-HF specifies 200 µA, CDBA3100-G specifies 500 µA, and SK310A/SK310AH/SK310AHE3-LTP specify 100 µA. All values remain within acceptable limits for Schottky diode applications. Lower leakage current may provide marginal efficiency benefits in low-current standby conditions.

Q: What does AEC-Q101 qualification mean?

A: AEC-Q101 is an automotive industry standard qualification for discrete semiconductors. Parts carrying this qualification (ACDBA3100-HF, SK310AH, SK310AHE3-LTP) have undergone formal testing and validation for automotive applications, including temperature cycling, thermal shock, and reliability assessments. These parts are suitable for automotive-grade circuit designs where formal qualification is required.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry RoHS3 compliance certification, confirming restriction of hazardous substances in accordance with EU Directive 2011/65/EU. All parts also carry MSL 1 (Unlimited) moisture sensitivity level, indicating no moisture sensitivity restrictions during storage and handling.

Q: Can I use a substitute part with lower reverse leakage current in place of the SS310F-HF?

A: Yes. Substituting a part with lower reverse leakage current (such as SK310A at 100 µA versus SS310F-HF at 300 µA) is electrically compatible and may provide improved performance in applications sensitive to leakage current. No circuit modification is required.

Q: What is the significance of capacitance specification differences?

A: Capacitance at reverse voltage (Vr) affects switching behavior and high-frequency performance. SS310F-HF specifies 180 pF, ACDBA3100-HF specifies 100 pF, and SK310AHE3-LTP specifies 250 pF at 4 V and 1 MHz. For standard rectification applications, these variations have minimal impact. For high-frequency switching applications, lower capacitance (ACDBA3100-HF) may provide marginal performance benefits.

Q: Which substitute part should I select for new designs?

A: For new designs, SK310AH is recommended based on highest inventory availability (15,314 pieces), AEC-Q101 automotive qualification, Tape & Reel packaging for automated assembly, and lowest reverse leakage current (100 µA). This selection supports production scalability and long-term supply continuity.