BAS 70-02W E6327 Equivalent & Substitute Parts

Part Overview

The BAS 70-02W E6327 is a Schottky diode manufactured by Infineon Technologies, rated for 70V DC reverse voltage and 70mA average rectified current. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. The part is packaged in SC-80 surface mount configuration with small signal switching characteristics suitable for high-frequency applications.

Substiute Parts

BAS 70-02W E6327

Infineon TechnologiesIn Stock: 866BAS 70-02W E6327 Datasheet

Current PartRFQ

1PS79SB70,115

Nexperia USA Inc.In Stock: 703611PS79SB70,115 Datasheet

DirectRFQ

BAR18FILM

STMicroelectronicsIn Stock: 47721BAR18FILM Datasheet

MFR RecommendedRFQ

BAS70W-7-F

Diodes IncorporatedIn Stock: 19560BAS70W-7-F Datasheet

MFR RecommendedRFQ

SMS3924-079LF

Skyworks Solutions Inc.In Stock: 21757SMS3924-079LF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAS 70-02W E6327 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 70V
• Current - Average Rectified (Io): 70mA
• Technology: Schottky
• Speed Classification: Small Signal ≤ 200mA (Io)
• Mounting Type: Surface Mount
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variations:

• Package / Case: Different surface mount packages (SC-80, SOD-523, SOT-23-3, SOT-323) are acceptable provided the physical footprint and pin configuration are compatible with the application circuit
• Operating Temperature - Junction: Substitute parts with higher maximum junction temperature (150°C vs. 125°C) are acceptable as they provide extended thermal margin
• Forward Voltage (Vf): Minor variations within the small signal operating range are acceptable
• Reverse Leakage Current: Variations are acceptable provided they remain within acceptable limits for the application
• Reverse Recovery Time (trr): Variations are acceptable for non-critical timing applications

Four active substitute parts meet these criteria across different package options.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: BAS70W-7-F (Diodes Incorporated)

The BAS70W-7-F provides the closest electrical and thermal equivalence to the obsolete BAS 70-02W E6327. This part maintains identical voltage and current ratings, forward voltage characteristics, reverse leakage current, and junction temperature range (-55°C to 125°C). The SOT-323 package offers superior miniaturization compared to the original SC-80 package while maintaining full electrical compatibility. This part is actively manufactured and carries ROHS3 compliance certification.

Secondary Recommendation: 1PS79SB70,115 (Nexperia USA Inc.)

The 1PS79SB70,115 meets all mandatory electrical parameters with 70V reverse voltage and 70mA average rectified current. The SOD-523 package provides compact surface mount integration. This part is actively produced with extensive inventory availability (70,326 pcs) and ROHS3 compliance. The higher maximum junction temperature (150°C) provides thermal margin. Note: Reverse leakage current is specified at 10 µA @ 70V, which is higher than the original part specification.

Tertiary Recommendation: BAR18FILM (STMicroelectronics)

The BAR18FILM is an active Schottky diode meeting the 70V/70mA electrical specification in SOT-23-3 package configuration. This part offers the lowest forward voltage drop (410 mV @ 1 mA) among the substitutes, providing improved efficiency in power conversion applications. ROHS3 compliance and 150°C maximum junction temperature are provided. The SOT-23-3 package is widely supported in manufacturing environments.

Alternative Consideration: SMS3924-079LF (Skyworks Solutions Inc.)

The SMS3924-079LF is an RF-grade Schottky diode with 70V peak reverse voltage rating. This part is specified for 50 mA maximum current, which is below the 70 mA requirement of the original part. This substitute is suitable only for applications where the actual operating current does not exceed 50 mA. The part is actively manufactured with ROHS3 compliance and 150°C maximum junction temperature.

Compliance Status:

All four substitute parts carry ROHS3 compliance certification and REACH Unaffected status, meeting current regulatory requirements for electronic component procurement.

Frequently Asked Questions (FAQ)

Q: Can I use the 1PS79SB70,115 as a direct replacement for BAS 70-02W E6327?

A: The 1PS79SB70,115 meets the mandatory electrical parameters (70V, 70mA, Schottky technology, small signal speed classification). However, the package differs (SOD-523 vs. SC-80), requiring PCB layout modification. Reverse leakage current is higher (10 µA @ 70V vs. 100 nA @ 50V), which may affect circuit performance in low-leakage applications. Verify circuit compatibility before implementation.

Q: What is the primary advantage of BAS70W-7-F over the original BAS 70-02W E6327?

A: The BAS70W-7-F maintains identical electrical specifications and temperature range while offering the SOT-323 package, which provides superior miniaturization and improved thermal characteristics. The part is actively manufactured with full ROHS3 compliance, ensuring long-term supply availability.

Q: Are package differences between substitutes significant?

A: Yes. The original BAS 70-02W E6327 uses SC-80 package. Substitutes employ SOD-523, SOT-23-3, or SOT-323 packages. Each package has different footprint dimensions, pin spacing, and thermal properties. PCB layout must be redesigned to accommodate the selected substitute package. Verify mechanical compatibility with your application circuit before component selection.

Q: Can SMS3924-079LF replace BAS 70-02W E6327 in all applications?

A: No. The SMS3924-079LF is rated for 50 mA maximum current, while the original part is rated for 70 mA. This substitute is suitable only for applications where actual operating current does not exceed 50 mA. For applications requiring the full 70 mA rating, use BAS70W-7-F, 1PS79SB70,115, or BAR18FILM.

Q: What does "Small Signal ≤ 200mA (Io)" speed classification mean?

A: This classification indicates the diode is optimized for switching applications with average rectified current not exceeding 200 mA. All substitute parts maintain this classification, confirming suitability for high-frequency switching and signal detection applications.

Q: Are there thermal performance differences between substitutes?

A: Yes. The original BAS 70-02W E6327 and BAS70W-7-F are rated to -55°C to 125°C junction temperature. The 1PS79SB70,115, BAR18FILM, and SMS3924-079LF are rated to 150°C maximum junction temperature. Higher temperature ratings provide thermal margin in high-ambient or high-power-dissipation environments.

Q: What is the significance of ROHS3 compliance?

A: ROHS3 compliance certifies that the component meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. All substitute parts carry ROHS3 certification, meeting current procurement standards for regulated industries and export markets.

Q: How do forward voltage differences affect circuit design?

A: Forward voltage (Vf) determines voltage drop across the diode during conduction. The BAR18FILM specifies 410 mV @ 1 mA, lower than other substitutes at 1 V @ 15 mA. Lower forward voltage reduces power dissipation and heat generation, improving efficiency in power conversion circuits. Verify that your circuit design accommodates the selected part's forward voltage specification.

Q: Is reverse leakage current critical for my application?

A: Reverse leakage current becomes critical in precision analog circuits, high-impedance signal paths, and low-power applications. The original BAS 70-02W E6327 specifies 100 nA @ 50V. The 1PS79SB70,115 specifies 10 µA @ 70V, which is 100 times higher. For leakage-sensitive applications, select BAS70W-7-F or BAR18FILM, which maintain comparable leakage specifications.