BA591,115 Equivalent & Substitute Parts

Part Overview

The BA591,115 is an RF Diode Standard - Single manufactured by NXP USA Inc., rated for 35V peak reverse voltage with 100 mA maximum current and 500 mW power dissipation in SOD-323 packaging. This part is classified as Obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. Substitute parts must maintain compatibility across electrical ratings, mechanical packaging, and thermal operating ranges to ensure functional equivalence in RF applications.

Substiute Parts

BA591,115

NXP USA Inc.In Stock: 87129BA591,115 Datasheet

Current PartRFQ

1SV307(TPH3,F)

Toshiba Semiconductor and StorageIn Stock: 202681SV307(TPH3,F) Datasheet

MFR RecommendedRFQ

BA592E6327HTSA1

Infineon TechnologiesIn Stock: 999185BA592E6327HTSA1 Datasheet

MFR RecommendedRFQ

BA592E6433HTMA1

Infineon TechnologiesIn Stock: 839BA592E6433HTMA1 Datasheet

MFR RecommendedRFQ

BAR6503WE6327HTSA1

Infineon TechnologiesIn Stock: 12601BAR6503WE6327HTSA1 Datasheet

MFR RecommendedRFQ

SMP1320-011LF

Skyworks Solutions Inc.In Stock: 2611SMP1320-011LF Datasheet

MFR RecommendedRFQ

SMP1321-011LF

Skyworks Solutions Inc.In Stock: 6218SMP1321-011LF Datasheet

MFR RecommendedRFQ

SMP1352-011LF

Skyworks Solutions Inc.In Stock: 1875SMP1352-011LF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BA591,115 is determined by the following critical parameters:

• Diode Type: Standard - Single or PIN - Single configurations are acceptable based on functional application requirements
• Voltage - Peak Reverse (Max): Minimum 35V required; higher ratings are acceptable
• Current - Max: Minimum 100 mA required; higher ratings are acceptable
• Package / Case: SC-76, SOD-323 mandatory for mechanical and thermal compatibility
• Power Dissipation (Max): Minimum 500 mW required; higher ratings are acceptable
• Operating Temperature Range: Must support -65°C to 150°C or equivalent thermal envelope
• RoHS Status: ROHS3 Compliant required for regulatory compliance
• MSL Rating: 1 (Unlimited) preferred for handling and storage compatibility

Substitute parts are grouped into two categories: direct electrical equivalents (matching Standard diode type) and functional alternatives (PIN diode type with compatible electrical characteristics).

Parameter Comparison

Engineering Selection Recommendations

Direct Electrical Equivalents (Standard Diode Type):

BA592E6327HTSA1 and BA592E6433HTMA1 from Infineon Technologies provide the closest electrical match to BA591,115, maintaining identical voltage and current ratings with equivalent resistance characteristics. Both parts are ROHS3 compliant and support the full operating temperature range. However, both are classified as "Not For New Designs," indicating limited long-term availability and suitability only for legacy system support or existing inventory management.

Active Substitute Options (PIN Diode Type):

BAR6503WE6327HTSA1 (Infineon Technologies) and SMP1320-011LF (Skyworks Solutions Inc.) are Active status parts suitable for new designs. Both maintain SOD-323 packaging and ROHS3 compliance. BAR6503WE6327HTSA1 matches the 100 mA current rating and supports the full -65°C to 150°C temperature range, though with reduced peak reverse voltage (30V) and power dissipation (250 mW). SMP1320-011LF offers the highest peak reverse voltage (50V) and maintains the 250 mW power dissipation rating with Active product status, making it the preferred choice for new RF diode applications requiring long-term supply assurance.

1SV307(TPH3,F) from Toshiba is Active status but presents reduced electrical ratings (30V, 50 mA) and a narrower operating temperature range (-65°C to 125°C), limiting its suitability as a primary substitute.

Frequently Asked Questions (FAQ)

Q: Can BA592E6327HTSA1 or BA592E6433HTMA1 be used as direct replacements for BA591,115?

A: Both Infineon parts provide electrical equivalence with matching 35V voltage, 100 mA current, and 500mOhm resistance specifications. However, both are classified as "Not For New Designs," indicating restricted availability and suitability only for legacy applications or existing inventory replacement scenarios.

Q: What is the primary difference between Standard and PIN diode substitutes?

A: Standard diodes (BA592E series) provide direct functional equivalence to the BA591,115. PIN diodes (BAR6503WE6327HTSA1, SMP1320-011LF, 1SV307) offer alternative RF characteristics with different capacitance and resistance profiles. PIN diode selection depends on specific RF application requirements and circuit design parameters.

Q: Why is SMP1320-011LF recommended for new designs?

A: SMP1320-011LF maintains Active product status, ensuring long-term supply availability and design support. It provides the highest peak reverse voltage rating (50V), maintains SOD-323 packaging compatibility, and supports the full -65°C to 150°C operating temperature range with ROHS3 compliance.

Q: Are all substitute parts compatible with the SOD-323 package footprint?

A: All listed substitute parts use SC-76, SOD-323 packaging, ensuring mechanical and thermal compatibility with existing PCB designs. No layout modifications are required for package substitution.

Q: What compliance certifications are maintained across all substitute parts?

A: All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity ratings, ensuring regulatory and handling compatibility with the original BA591,115 specification.