BAS7004TC Equivalent & Substitute Parts

Part Overview

The BAS7004TC is a Schottky diode array in a 1 Pair Series Connection configuration manufactured by Diodes Incorporated. This component features a 70 V DC reverse voltage rating and 15 mA average rectified current per diode, housed in a SOT-23-3 surface mount package. The part is classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing design requirements and procurement needs.

Substiute Parts

BAS7004TC

Diodes IncorporatedIn Stock: 1250BAS7004TC Datasheet

Current PartRFQ

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

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAS7004TC is determined by strict adherence to the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Diode Configuration: 1 Pair Series Connection (mandatory match)
• Technology: Schottky (mandatory match)
• Voltage - DC Reverse (Vr) (Max): 70 V (mandatory match)
• Mounting Type: Surface Mount (mandatory match)
• Package / Case: TO-236-3, SC-59, SOT-23-3 or compatible surface mount packages (mandatory match)
• RoHS Status: ROHS3 Compliant (mandatory match)
• Moisture Sensitivity Level (MSL): 1 (Unlimited) (mandatory match)

Allowable Parameter Variations:

• Current - Average Rectified (Io) (per Diode): Substitute parts rated at 70 mA are acceptable as this represents an upgrade in current handling capacity while maintaining backward compatibility with 15 mA applications
• Voltage - Forward (Vf) (Max) @ If: Variations within the Schottky diode technology range are acceptable provided the part functions within the application circuit
• Operating Temperature - Junction: Substitute parts with maximum junction temperature of 150°C are acceptable; extended lower temperature range (-55°C) is acceptable but not required
• Current - Reverse Leakage @ Vr: Variations are acceptable within Schottky technology specifications

All substitute parts listed maintain the same diode configuration, Schottky technology, 70 V reverse voltage rating, surface mount form factor, and regulatory compliance as the original BAS7004TC.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Identical Package - SOT-23-3):

The following parts are direct substitutes for the BAS7004TC with identical SOT-23-3 packaging:

• BAS70-04,215 (Nexperia USA Inc.): Active product with 70 mA current rating. ROHS3 compliant, MSL 1. Suitable for direct replacement in SOT-23-3 footprint applications.

• BAS7004E6327HTSA1 (Infineon Technologies): Active product with 70 mA current rating and 100 ps reverse recovery time specification. ROHS3 compliant, MSL 1. Suitable for direct replacement in SOT-23-3 footprint applications.

• BAS7004E6433HTMA1 (Infineon Technologies): Active product with 70 mA current rating and 100 ps reverse recovery time specification. ROHS3 compliant, MSL 1. Supplied in Tape & Reel packaging. Suitable for direct replacement in SOT-23-3 footprint applications.

• BAS70-04-TP (Micro Commercial Co): Active product with 70 mA current rating, 5 ns reverse recovery time, and extended operating temperature range (-55°C to 150°C). ROHS3 compliant, MSL 1. Supplied in Tape & Reel packaging. Suitable for direct replacement in SOT-23-3 footprint applications.

• BAS70-04FILM (STMicroelectronics): Active product with 70 mA current rating. ROHS3 compliant, MSL 1. Supplied in Cut Tape & Digi-Reel packaging. Suitable for direct replacement in SOT-23-3 footprint applications.

Alternative Package Substitute (SOT-323):

• BAS70-04W,115 (Nexperia USA Inc.): Active product with 70 mA current rating in SC-70/SOT-323 package. ROHS3 compliant, MSL 1, AEC-Q101 automotive qualified. This part requires PCB layout modification due to different package footprint (SOT-323 versus SOT-23-3). Forward voltage specification matches original part at 410 mV @ 1 mA.

Selection Criteria:

All listed substitutes maintain ROHS3 compliance and MSL 1 rating. Selection between SOT-23-3 options depends on packaging format requirements (Cut Tape, Digi-Reel, or Tape & Reel) and inventory availability. The BAS70-04W,115 alternative requires PCB redesign due to package change and is suitable only when layout modification is feasible.

Frequently Asked Questions (FAQ)

Q: Can BAS7004TC be replaced with any of the listed substitute parts?

A: Yes, all listed substitute parts are electrically and mechanically compatible with the BAS7004TC. The first five substitutes (BAS70-04,215, BAS7004E6327HTSA1, BAS7004E6433HTMA1, BAS70-04-TP, BAS70-04FILM) use identical SOT-23-3 packaging and require no PCB modification. The BAS70-04W,115 uses SOT-323 packaging and requires PCB layout changes.

Q: What is the primary difference between the BAS7004TC and its substitutes?

A: The main difference is current rating. The BAS7004TC is rated for 15 mA average rectified current per diode, while all substitutes are rated for 70 mA. This represents an upgrade in current handling capacity. All other critical parameters—70 V reverse voltage, Schottky technology, 1 Pair Series Connection configuration, and surface mount form factor—remain identical.

Q: Are the substitute parts backward compatible with the original BAS7004TC application?

A: Yes. The substitute parts with higher current ratings (70 mA) are backward compatible with applications designed for 15 mA operation. The higher current rating does not degrade performance in lower-current applications.

Q: Why is the BAS70-04W,115 listed as an alternative rather than a direct substitute?

A: The BAS70-04W,115 uses SC-70/SOT-323 packaging instead of SOT-23-3. While electrically equivalent, this package change requires PCB footprint modification and cannot be used as a direct drop-in replacement without layout redesign.

Q: What packaging formats are available for the substitute parts?

A: Substitute parts are available in multiple packaging formats: Cut Tape (CT) & Digi-Reel (BAS70-04,215, BAS70-04FILM), Tape & Reel (TR) (BAS7004E6433HTMA1, BAS70-04-TP, BAS70-04W,115), and Cut Tape & Digi-Reel (BAS7004E6327HTSA1). Selection depends on procurement and assembly requirements.

Q: Do all substitute parts meet the same regulatory compliance as the original BAS7004TC?

A: Yes. All substitute parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's compliance profile. The BAS70-04W,115 additionally carries AEC-Q101 automotive qualification.

Q: What is the significance of the 70 mA current rating on substitute parts compared to the 15 mA original?

A: The 70 mA rating indicates the substitute parts can handle higher current loads. In applications requiring only 15 mA, the 70 mA-rated parts operate well within their specifications, providing design margin and reliability. This upgrade does not introduce compatibility issues.

Q: Are there any temperature range considerations when selecting a substitute?

A: The BAS70-04-TP maintains the original -55°C to 150°C operating range. Other substitutes specify 150°C maximum junction temperature without explicit minimum temperature specification. For applications requiring -55°C minimum operation, BAS70-04-TP is the appropriate selection.

Q: Can substitute parts be mixed in the same assembly?

A: Yes. All substitute parts meet identical electrical and mechanical specifications for the critical parameters. However, for manufacturing consistency and traceability, using a single part number per assembly is recommended.