ACDST-70-G Equivalent & Substitute Parts

Part Overview

The ACDST-70-G is a general-purpose diode array manufactured by Comchip Technology, configured as 1 pair common cathode with 70 V reverse voltage rating and 200 mA average rectified current per diode. The device is packaged in SOT-23-3 surface mount configuration and is qualified to AEC-Q101 automotive standards. This part is currently in active production status with 72,300 pieces in stock.

Equivalent and substitute parts are identified to support supply chain continuity, alternative sourcing options, and design flexibility when the primary part becomes unavailable or when specific performance characteristics are required for particular applications.

Substiute Parts

ACDST-70-G

Comchip TechnologyIn Stock: 72368ACDST-70-G Datasheet

Current PartRFQ

BAV70-AU_R1_000A1

Panjit International Inc.In Stock: 6732BAV70-AU_R1_000A1 Datasheet

MFR RecommendedRFQ

BAV70 RFG

Taiwan Semiconductor CorporationIn Stock: 6805BAV70 RFG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ACDST-70-G are identified based on strict electrical and mechanical parameter compatibility within the diode array rectifier category. The substitution logic is based on the following criteria:

Primary Substitution Criteria:

• Diode configuration: 1 pair common cathode (mandatory match)
• Package type: SOT-23-3 surface mount (mandatory match)
• Voltage - DC Reverse (Vr): Equal to or greater than 70 V
• Current - Average Rectified (Io): Equal to or greater than 200 mA per diode
• Voltage - Forward (Vf): Equal to or less than 1.25 V @ 150 mA
• Reverse Recovery Time (trr): Equal to or less than 6 ns
• Current - Reverse Leakage: Equal to or less than 2.5 µA @ rated voltage
• Mounting type: Surface mount (mandatory match)
• Compliance: AEC-Q101 automotive qualification and ROHS3 compliance required

Substitute Parts Identified:

1. BAV70-AU_R1_000A1 (Panjit International Inc.) — MFR Recommended Manufacturer Part Number
2. BAV70 RFG (Taiwan Semiconductor Corporation) — Parametric Equivalent

Both substitute parts meet or exceed the electrical specifications of the ACDST-70-G and maintain identical package and mounting configurations.

Parameter Comparison

Engineering Selection Recommendations

BAV70-AU_R1_000A1 (Panjit International Inc.) is designated as the MFR Recommended Manufacturer Part Number substitute. This part maintains AEC-Q101 automotive qualification and ROHS3 compliance identical to the ACDST-70-G. The BAV70-AU_R1_000A1 provides a higher reverse voltage rating (75 V vs. 70 V) and faster reverse recovery time (4 ns vs. 6 ns), making it suitable for applications requiring enhanced voltage margin. However, the average rectified current rating is reduced to 150 mA per diode, which must be evaluated against circuit requirements. This part is available in Tape & Reel packaging format.

BAV70 RFG (Taiwan Semiconductor Corporation) is designated as the Parametric Equivalent. This part provides identical electrical specifications to the ACDST-70-G (70 V reverse voltage, 200 mA average rectified current, 6 ns reverse recovery time) and maintains ROHS3 compliance. The BAV70 RFG is available in Cut Tape and Digi-Reel® packaging formats. Automotive grade and AEC-Q101 qualification status are not specified for this part; verification of compliance requirements is necessary for automotive applications.

Selection between substitute parts depends on:

• Current rating requirements (200 mA vs. 150 mA per diode)
• Automotive qualification necessity
• Packaging format availability and handling requirements
• Supply chain and inventory considerations

Frequently Asked Questions (FAQ)

Q: Can BAV70-AU_R1_000A1 be used as a direct replacement for ACDST-70-G?

A: BAV70-AU_R1_000A1 is electrically compatible for most applications due to its higher reverse voltage rating (75 V) and faster reverse recovery time (4 ns). However, the reduced average rectified current rating (150 mA vs. 200 mA per diode) must be evaluated against circuit current requirements. Both parts maintain identical package configuration (SOT-23-3), mounting type (surface mount), and automotive qualification (AEC-Q101).

Q: What are the key differences between BAV70 RFG and ACDST-70-G?

A: BAV70 RFG provides identical electrical specifications to ACDST-70-G (70 V reverse voltage, 200 mA average rectified current, 6 ns reverse recovery time, 1.25 V forward voltage). Both parts use SOT-23-3 packaging and surface mount configuration. The primary difference is packaging format: ACDST-70-G is supplied in Tape & Reel format, while BAV70 RFG is supplied in Cut Tape and Digi-Reel® formats. Automotive grade and AEC-Q101 qualification are not specified for BAV70 RFG.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. ACDST-70-G, BAV70-AU_R1_000A1, and BAV70 RFG are all ROHS3 compliant. All three parts have Moisture Sensitivity Level (MSL) rating of 1 (Unlimited).

Q: Which substitute part is recommended for automotive applications?

A: BAV70-AU_R1_000A1 is the MFR Recommended Manufacturer Part Number and maintains AEC-Q101 automotive qualification identical to ACDST-70-G. For applications requiring automotive-grade components, BAV70-AU_R1_000A1 is the preferred substitute. BAV70 RFG does not specify automotive grade or AEC-Q101 qualification status.

Q: What is the impact of the 150 mA current rating on BAV70-AU_R1_000A1?

A: BAV70-AU_R1_000A1 has a maximum average rectified current of 150 mA per diode, compared to 200 mA for ACDST-70-G. This part is suitable for applications requiring up to 150 mA per diode. Applications requiring the full 200 mA rating should use BAV70 RFG or the original ACDST-70-G.

Q: Do packaging format differences affect electrical performance?

A: No. Packaging format (Tape & Reel, Cut Tape, or Digi-Reel®) does not affect electrical performance. Format selection is based on manufacturing process requirements, handling procedures, and supply chain logistics.

Q: What is the operating temperature range for each part?

A: ACDST-70-G specifies maximum junction temperature of 150°C. BAV70-AU_R1_000A1 and BAV70 RFG both specify operating temperature range of -55°C to 150°C, providing extended low-temperature operation capability.