BAS70-04-HF Equivalent & Substitute Parts

Part Overview

The BAS70-04-HF is a Schottky diode array in a 1 Pair Series Connection configuration, manufactured by Comchip Technology. This surface mount component operates at 70 V DC reverse voltage with 70 mA average rectified current per diode. The part is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and packaging specifications are required due to supply constraints, manufacturing discontinuation, or design flexibility needs.

Substiute Parts

BAS70-04-HF

Comchip TechnologyIn Stock: 781BAS70-04-HF Datasheet

Current PartRFQ

BAS70-04 RFG

Taiwan Semiconductor CorporationIn Stock: 5911BAS70-04 RFG Datasheet

Parametric EquivalentRFQ

BAS70-04-7-F

Diodes IncorporatedIn Stock: 35251BAS70-04-7-F Datasheet

Parametric EquivalentRFQ

BAS70-04-TP

Micro Commercial CoIn Stock: 5102BAS70-04-TP Datasheet

Parametric EquivalentRFQ

BAS70-04Q-13-F

Diodes IncorporatedIn Stock: 1016BAS70-04Q-13-F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAS70-04-HF is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Diode Configuration: 1 Pair Series Connection
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 70 V
• Current - Average Rectified (Io) (per Diode): 70 mA (DC)
• Voltage - Forward (Vf) (Max) @ If: 1 V @ 15 mA
• Reverse Recovery Time (trr): 5 ns
• Operating Temperature - Junction: -55°C ~ 125°C (minimum requirement)

Mechanical Equivalence Requirements:

• Package / Case: TO-236-3, SC-59, SOT-23-3
• Mounting Type: Surface Mount

Compliance Requirements:

• RoHS3 Compliant
• Active product status

All identified substitute parts meet these criteria. Variations in reverse leakage current, packaging format (Tape & Reel vs. Cut Tape), and extended temperature ranges represent acceptable deviations that do not affect functional substitution.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are functionally equivalent to the BAS70-04-HF and maintain Active product status with RoHS3 compliance. Selection among these alternatives is based on the following criteria:

Standard Industrial Applications: BAS70-04 RFG (Taiwan Semiconductor Corporation), BAS70-04-7-F (Diodes Incorporated), and BAS70-04-TP (Micro Commercial Co) are suitable for general-purpose applications. These parts share identical electrical specifications with the primary part.

Extended Temperature Range Applications: BAS70-04-TP (Micro Commercial Co) provides an extended operating temperature range of -55°C ~ 150°C, compared to the standard -55°C ~ 125°C specification. This part is appropriate for applications requiring thermal margin beyond standard industrial limits.

Automotive Applications: BAS70-04Q-13-F (Diodes Incorporated) is qualified to AEC-Q101 automotive standards and carries Automotive grade designation. This part is required for automotive-grade circuit designs and applications subject to automotive qualification requirements.

Packaging Format Considerations: BAS70-04-7-F is supplied in Cut Tape (CT) & Digi-Reel® format, while BAS70-04 RFG, BAS70-04-TP, and BAS70-04Q-13-F are supplied in Tape & Reel (TR) format. Packaging selection depends on assembly process requirements and volume specifications.

Frequently Asked Questions (FAQ)

Q: Can BAS70-04-7-F replace BAS70-04-HF in production assembly?

A: Yes. BAS70-04-7-F meets all electrical and mechanical equivalence requirements. The primary difference is packaging format: BAS70-04-7-F is supplied in Cut Tape & Digi-Reel® format while BAS70-04-HF is supplied in Tape & Reel format. Assembly equipment compatibility with the packaging format must be confirmed.

Q: What is the difference between BAS70-04 RFG and BAS70-04-TP?

A: Both parts are electrically equivalent with identical voltage, current, and switching characteristics. BAS70-04-TP provides an extended operating temperature range of -55°C ~ 150°C versus -55°C ~ 125°C for BAS70-04 RFG. Selection depends on thermal requirements of the application.

Q: Is BAS70-04Q-13-F suitable for non-automotive applications?

A: Yes. BAS70-04Q-13-F meets all electrical and mechanical specifications for standard industrial use. The AEC-Q101 qualification and Automotive grade designation indicate additional quality and reliability screening but do not restrict use in non-automotive applications.

Q: Are there differences in reverse leakage current between substitute parts?

A: Yes. BAS70-04-HF and BAS70-04-TP specify 200 nA @ 50 V reverse leakage current, while BAS70-04 RFG, BAS70-04-7-F, and BAS70-04Q-13-F specify 100 nA @ 50 V. Both specifications are within acceptable limits for Schottky diode arrays and do not affect functional substitution in standard applications.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. All substitute parts share identical package designation (TO-236-3, SC-59, SOT-23-3) and surface mount mounting type. PCB footprints and assembly processes are compatible across all listed parts.

Q: What is the significance of the BAS70 base product number?

A: The BAS70 base product number identifies the core diode array family. All listed parts (BAS70-04-HF, BAS70-04 RFG, BAS70-04-7-F, BAS70-04-TP, BAS70-04Q-13-F) are variants within this family, differentiated by manufacturer, packaging format, and qualification level while maintaining identical electrical performance.