BAS70-04-7-F-79 Equivalent & Substitute Parts

Part Overview

The BAS70-04-7-F-79 is a Schottky diode array in a 1 Pair Series Connection configuration, rated for 70 V DC reverse voltage and 70 mA average rectified current per diode. Manufactured by Diodes Incorporated, this component is packaged in a Surface Mount TO-236-3 (SOT-23-3) package and is qualified to AEC-Q101 automotive standards with ROHS3 compliance.

The BAS70-04-7-F-79 carries an Obsolete product status. 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 array configuration.

Substiute Parts

BAS70-04-7-F-79

Diodes IncorporatedIn Stock: 733BAS70-04-7-F-79 Datasheet

Current PartRFQ

BAS70-04-7-F

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

Parametric EquivalentRFQ

BAS70-04Q-13-F

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

Parametric EquivalentRFQ

BAS70-04 RFG

Taiwan Semiconductor CorporationIn Stock: 5911BAS70-04 RFG Datasheet

Parametric EquivalentRFQ

BAS70-04-HF

Comchip TechnologyIn Stock: 781BAS70-04-HF Datasheet

Parametric EquivalentRFQ

BAS70-04-TP

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAS70-04-7-F-79 is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• 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 minimum to 125°C minimum
• Mounting Type: Surface Mount
• Package / Case: TO-236-3, SC-59, SOT-23-3

Acceptable Variation Parameters:

• Current - Reverse Leakage @ Vr: 100 nA to 200 nA @ 50 V (within acceptable leakage tolerance)
• Operating Temperature - Junction: Upper limit may exceed 125°C (BAS70-04-TP extends to 150°C)
• Product Status: Active status preferred over Obsolete
• Packaging Format: Cut Tape, Tape & Reel, or Digi-Reel formats are interchangeable for equivalent electrical performance

All substitute parts listed maintain electrical and mechanical compatibility with the original BAS70-04-7-F-79 specification.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: BAS70-04-7-F

The BAS70-04-7-F from Diodes Incorporated is the direct parametric equivalent to the obsolete BAS70-04-7-F-79. This part maintains identical electrical specifications, identical operating temperature range, and identical reverse leakage characteristics. The BAS70-04-7-F carries Active product status with 35,200 units in stock, ensuring supply chain continuity. Both parts share the same base product number (BAS70) and manufacturer lineage. This substitute is suitable for direct replacement in all applications where the BAS70-04-7-F-79 was originally specified.

Secondary Recommendation: BAS70-04Q-13-F

The BAS70-04Q-13-F from Diodes Incorporated provides parametric equivalence with the addition of AEC-Q101 automotive qualification, matching the original part's automotive grade designation. This part is Active with 927 units in stock. The BAS70-04Q-13-F is packaged in Tape & Reel format and maintains all critical electrical parameters. This substitute is appropriate for automotive applications requiring AEC-Q101 compliance.

Alternative Recommendations: BAS70-04 RFG, BAS70-04-HF, BAS70-04-TP

The BAS70-04 RFG (Taiwan Semiconductor Corporation), BAS70-04-HF (Comchip Technology), and BAS70-04-TP (Micro Commercial Co) are parametrically equivalent alternatives from alternative manufacturers. All three maintain the required 70 V reverse voltage, 70 mA current rating, 5 ns reverse recovery time, and SOT-23-3 package configuration. The BAS70-04-HF and BAS70-04-TP exhibit slightly elevated reverse leakage (200 nA @ 50 V versus 100 nA @ 50 V), which remains within acceptable tolerance for most applications. The BAS70-04-TP extends the operating temperature range to 150°C, providing enhanced thermal margin. These alternatives are suitable where multi-source qualification or extended temperature performance is required.

Frequently Asked Questions (FAQ)

Q: Can the BAS70-04-7-F directly replace the BAS70-04-7-F-79 in existing designs?

A: Yes. The BAS70-04-7-F is a direct parametric equivalent with identical electrical specifications, package configuration, and operating temperature range. The primary difference is product status: BAS70-04-7-F-79 is Obsolete while BAS70-04-7-F is Active. No design modifications are required.

Q: What is the difference between the BAS70-04-7-F and BAS70-04Q-13-F?

A: Both parts are electrically identical with 70 V reverse voltage, 70 mA current rating, and identical forward voltage characteristics. The BAS70-04Q-13-F includes explicit AEC-Q101 automotive qualification designation. If your application requires documented automotive qualification, the BAS70-04Q-13-F is the appropriate selection.

Q: Why do some substitute parts show 200 nA reverse leakage instead of 100 nA?

A: The BAS70-04-HF and BAS70-04-TP exhibit reverse leakage of 200 nA @ 50 V, compared to 100 nA @ 50 V for the original part. This represents a doubling of leakage current but remains within acceptable tolerance for most circuit applications. Designs with stringent leakage requirements should specify the 100 nA variants (BAS70-04-7-F, BAS70-04Q-13-F, or BAS70-04 RFG).

Q: Are all substitute parts available in the same packaging formats?

A: Packaging formats vary among substitutes. BAS70-04-7-F is available in Cut Tape and Digi-Reel formats. BAS70-04Q-13-F, BAS70-04 RFG, BAS70-04-HF, and BAS70-04-TP are available in Tape & Reel format. All maintain the same SOT-23-3 physical package configuration suitable for Surface Mount assembly.

Q: Does the BAS70-04-TP extended temperature range (-55°C to 150°C) affect circuit performance?

A: The extended upper temperature limit of 150°C (versus 125°C for other variants) provides additional thermal margin but does not alter electrical performance within the standard -55°C to 125°C operating window. Applications operating near 125°C may benefit from the BAS70-04-TP's extended rating.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance status, matching the original BAS70-04-7-F-79 specification.

Q: Which substitute part should be selected for new designs?

A: For new designs, the BAS70-04-7-F is the recommended primary selection due to Active product status, high inventory availability (35,200 units), and identical electrical specifications. For automotive applications requiring explicit AEC-Q101 qualification, the BAS70-04Q-13-F is appropriate. Alternative manufacturers (BAS70-04 RFG, BAS70-04-HF, BAS70-04-TP) are suitable where multi-source qualification or extended temperature performance is a design requirement.