BAS7004TA Equivalent & Substitute Parts

Part Overview

The BAS7004TA is a Schottky diode array in a 1 Pair Series Connection configuration, rated for 70 V DC reverse voltage and 15 mA average rectified current per diode. Manufactured by Diodes Incorporated, this component is packaged in SOT-23-3 (TO-236-3, SC-59) surface mount format. The BAS7004TA is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design requirements and production continuity. Substitute parts maintain the same voltage rating and package footprint while offering enhanced current ratings and active product status.

Substiute Parts

BAS7004TA

Diodes IncorporatedIn Stock: 1391BAS7004TA Datasheet

Current PartRFQ

BAS70-04-7-F

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

DirectRFQ

BAS70-04,215

Nexperia USA Inc.In Stock: 36403BAS70-04,215 Datasheet

UpgradeRFQ

BAS7004E6327HTSA1

Infineon TechnologiesIn Stock: 23371BAS7004E6327HTSA1 Datasheet

UpgradeRFQ

BAS7004E6433HTMA1

Infineon TechnologiesIn Stock: 16580BAS7004E6433HTMA1 Datasheet

UpgradeRFQ

BAS70-04-TP

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

MFR RecommendedRFQ

BAS70-04FILM

STMicroelectronicsIn Stock: 59284BAS70-04FILM Datasheet

MFR RecommendedRFQ

BAS70-04W,115

Nexperia USA Inc.In Stock: 98493BAS70-04W,115 Datasheet

MFR RecommendedRFQ

BAS70S_R1_00001

Panjit International Inc.In Stock: 15063BAS70S_R1_00001 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAS7004TA is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Diode Configuration: 1 Pair Series Connection
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 70 V
• Package / Case: TO-236-3, SC-59, SOT-23-3 (or equivalent footprint)
• Mounting Type: Surface Mount

Flexible Parameters (Upgradeable):

• Current - Average Rectified (Io): Substitute parts rated at 70 mA or higher are acceptable for applications requiring 15 mA
• Operating Temperature Range: Extended or equivalent ranges are acceptable
• RoHS Status: Active substitutes are RoHS3 compliant, addressing obsolescence and regulatory requirements

Substitute parts are grouped into two categories: direct current-rated upgrades (70 mA) and higher current-rated options (200 mA). All substitute parts maintain the 70 V reverse voltage specification and SOT-23-3 package footprint, ensuring PCB compatibility and thermal performance equivalence.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (70 mA Current Rating):

The following parts are recommended as direct substitutes for the BAS7004TA in applications requiring up to 70 mA per diode:

• BAS70-04-7-F (Diodes Incorporated): Active product status with 70 mA rating. Maintains -55°C to 125°C operating range. ROHS3 compliant. Suitable for designs with established Diodes Incorporated supply chain.

• BAS70-04,215 (Nexperia USA Inc.): Active product with 70 mA rating and extended maximum junction temperature to 150°C. ROHS3 compliant. Recommended for thermal margin applications.

• BAS7004E6327HTSA1 (Infineon Technologies): Active product with 70 mA rating and 150°C maximum junction temperature. ROHS3 compliant. Offers 100 ps reverse recovery time specification.

• BAS7004E6433HTMA1 (Infineon Technologies): Active product with 70 mA rating, 150°C maximum junction temperature, and Tape & Reel packaging. ROHS3 compliant. Identical electrical specifications to BAS7004E6327HTSA1.

• BAS70-04-TP (Micro Commercial Co): Active product with 70 mA rating and full -55°C to 150°C operating range. ROHS3 compliant. Manufacturer-recommended substitute.

• BAS70-04FILM (STMicroelectronics): Active product with 70 mA rating and 150°C maximum junction temperature. ROHS3 compliant. Manufacturer-recommended substitute with high inventory availability.

Alternative Substitute (200 mA Current Rating):

• BAS70S_R1_00001 (Panjit International Inc.): Active product with enhanced 200 mA current rating. Maintains full -55°C to 150°C operating range. ROHS3 compliant. Suitable for applications requiring higher current capacity within the same package footprint.

Package Variant (SOT-323):

• BAS70-04W,115 (Nexperia USA Inc.): Active product with 70 mA rating in SC-70, SOT-323 package. Automotive grade with AEC-Q101 qualification. ROHS3 compliant. Not recommended for direct PCB replacement due to different package footprint; requires PCB redesign.

All substitute parts maintain the 70 V reverse voltage specification and Schottky technology. Selection should prioritize active product status and ROHS3 compliance to address obsolescence and regulatory requirements. Current rating upgrades (70 mA or 200 mA) are acceptable for applications originally designed for 15 mA operation.

Frequently Asked Questions (FAQ)

Q: Can BAS70-04-7-F directly replace BAS7004TA on existing PCBs?

A: Yes. BAS70-04-7-F maintains identical SOT-23-3 package footprint, 70 V reverse voltage rating, and Schottky diode configuration. The 70 mA current rating is a safe upgrade for 15 mA applications. No PCB modifications are required.

Q: What is the difference between the 70 mA and 200 mA substitute options?

A: Both maintain the same 70 V reverse voltage and SOT-23-3 package. The 200 mA option (BAS70S_R1_00001) provides additional current capacity for applications with higher current demands. Selection depends on circuit requirements; 70 mA options are sufficient for designs originally rated at 15 mA.

Q: Why is BAS70-04W,115 listed separately?

A: BAS70-04W,115 uses SC-70, SOT-323 package instead of SOT-23-3. While electrically compatible, the different package footprint requires PCB redesign. This part is suitable only for new designs or boards with SOT-323 land patterns. It includes automotive-grade qualification (AEC-Q101).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant, addressing regulatory requirements. The original BAS7004TA is RoHS non-compliant, making substitution necessary for new designs and production continuity.

Q: What is the significance of the operating temperature range differences?

A: The BAS7004TA specifies -55°C to 150°C. Some substitutes specify only maximum junction temperature (150°C) without minimum range. For applications requiring full -55°C to 150°C operation, select BAS70-04-7-F, BAS70-04-TP, or BAS70S_R1_00001.

Q: Can I use BAS70-04W,115 as a drop-in replacement?

A: No. BAS70-04W,115 uses SOT-323 package, which has a different footprint than the SOT-23-3 package of BAS7004TA. PCB redesign is required. This part is recommended only for new designs requiring automotive qualification.

Q: Which substitute offers the best thermal performance?

A: BAS70-04,215, BAS7004E6327HTSA1, BAS7004E6433HTMA1, BAS70-04FILM, and BAS70-04W,115 all specify 150°C maximum junction temperature. BAS70-04-7-F specifies -55°C to 125°C. For maximum thermal margin, select parts rated to 150°C.

Q: Are there inventory considerations for substitute selection?

A: Yes. BAS70-04FILM (STMicroelectronics) offers the highest inventory at 59,200 pieces. BAS70-04W,115 (Nexperia) offers 98,471 pieces. For immediate availability, these options provide supply security.

Q: What packaging formats are available?

A: Substitute parts are available in Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) formats. Selection depends on production volume and assembly equipment compatibility. All maintain the same electrical specifications regardless of packaging format.