BB207,235 Equivalent & Substitute Parts

Part Overview

The BB207,235 is a dual varactor diode manufactured by NXP USA Inc., designed for frequency tuning and capacitance modulation applications. This surface mount component features a common cathode configuration with 15 V peak reverse voltage rating and operates across the -55°C to 125°C temperature range. The part is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Substitute parts become necessary when the BB207,235 reaches end-of-life status, when inventory constraints occur, or when design requirements necessitate alternative electrical characteristics such as different capacitance values, capacitance ratios, or voltage ratings within compatible package formats.

Substiute Parts

BB207,235

NXP USA Inc.In Stock: 753BB207,235 Datasheet

Current PartRFQ

1SV228TPH3F

Toshiba Semiconductor and StorageIn Stock: 102171SV228TPH3F Datasheet

MFR RecommendedRFQ

BB814E6327GR1HTSA1

Infineon TechnologiesIn Stock: 4463BB814E6327GR1HTSA1 Datasheet

MFR RecommendedRFQ

SMV1253-004LF

Skyworks Solutions Inc.In Stock: 13006SMV1253-004LF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BB207,235 is determined by the following mandatory criteria:

Package Compatibility: All substitute parts must use TO-236-3, SC-59, or SOT-23-3 surface mount packages to ensure mechanical and electrical compatibility with existing PCB layouts and assembly processes.

Diode Configuration: All substitutes must maintain a 1 Pair Common Cathode configuration to preserve circuit functionality and pin compatibility.

Voltage Rating: Substitute parts must have a Peak Reverse Voltage rating of 15 V or higher to ensure safe operation within the original design envelope.

Operating Temperature Range: Substitutes must support the -55°C to 125°C junction temperature range or a subset thereof that covers the application's thermal requirements.

Electrical Characteristics: Capacitance values, capacitance ratios, and Q factors may vary between substitutes. Selection depends on specific circuit tuning requirements and frequency response characteristics needed for the application.

Compliance Status: RoHS3 compliance and MSL 1 rating are preferred to maintain regulatory alignment and manufacturing process compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute - BB814E6327GR1HTSA1 (Infineon): This part maintains the closest electrical alignment with the BB207,235, offering 22.7 pF capacitance at 8V (compared to 26.3 pF) and an 18 V peak reverse voltage rating that exceeds the original specification. Both parts are in active production status with ROHS3 compliance and identical operating temperature ranges (-55°C to 125°C). The higher voltage rating provides additional design margin. This substitute is suitable for direct replacement in most applications.

Secondary Substitute - SMV1253-004LF (Skyworks): This part is in active production with ROHS3 compliance and full temperature range support (-55°C to 125°C). It offers significantly higher capacitance ratio (12.3 versus 3.3) and higher Q factor (350 @ 3V, 50MHz), making it suitable for applications requiring enhanced frequency selectivity and lower loss characteristics. The lower absolute capacitance value (4.8 pF @ 4.7V) requires circuit design adjustment but provides greater tuning range.

Alternative Substitute - 1SV228TPH3F (Toshiba): This part shares identical 15 V voltage rating and package compatibility but carries "Not For New Designs" status, indicating end-of-life trajectory. It features lower capacitance (13.7 pF @ 8V) and reduced capacitance ratio (2.6), suitable only for legacy design maintenance or when specific circuit tuning characteristics are required. The operating temperature specification lists only 125°C maximum without lower temperature limit documentation.

Compliance Considerations: All recommended substitutes maintain RoHS3 compliance and MSL 1 rating, ensuring compatibility with modern manufacturing processes and regulatory requirements. The BB814E6327GR1HTSA1 and SMV1253-004LF are preferred for new designs due to active production status.

Frequently Asked Questions (FAQ)

Q: Can the BB207,235 be directly replaced with any of these substitutes without circuit modification?

A: Direct pin-compatible replacement is possible with all listed substitutes due to identical SOT-23-3 package configuration and common cathode diode pairing. However, electrical circuit behavior will change due to different capacitance values and ratios. Applications with fixed tuning requirements may require component value adjustments or circuit recalibration.

Q: What is the primary difference between the BB814E6327GR1HTSA1 and the BB207,235?

A: The BB814E6327GR1HTSA1 offers 18 V peak reverse voltage (versus 15 V), slightly lower capacitance at reference voltage (22.7 pF versus 26.3 pF), and documented Q factor performance (200 @ 2V, 100MHz). Both maintain identical operating temperature ranges and RoHS3 compliance. The higher voltage rating provides additional design margin for overvoltage protection.

Q: Why does the SMV1253-004LF have such a different capacitance ratio compared to the BB207,235?

A: The SMV1253-004LF is optimized for different frequency tuning applications, featuring a 12.3 capacitance ratio (C0.3/C4.7) versus the BB207,235's 3.3 ratio (C1/C7.5). This higher ratio provides greater capacitance variation across the voltage range, enabling wider frequency tuning spans. Measurement conditions also differ (50 MHz versus 1 MHz), reflecting different application frequency bands.

Q: Is the 1SV228TPH3F suitable for new product designs?

A: No. The 1SV228TPH3F carries "Not For New Designs" status, indicating Toshiba has discontinued active development and is transitioning to end-of-life. This part should be used only for legacy product maintenance or repair. The BB814E6327GR1HTSA1 or SMV1253-004LF are recommended for new designs.

Q: What are the temperature range implications when substituting with the 1SV228TPH3F?

A: The 1SV228TPH3F specification lists only 125°C maximum junction temperature without documented lower temperature limit. The BB207,235 specifies -55°C to 125°C. Applications requiring operation below 0°C should not use the 1SV228TPH3F as a substitute.

Q: How do the Q factor specifications affect substitute selection?

A: The BB814E6327GR1HTSA1 provides Q factor data (200 @ 2V, 100MHz) and the SMV1253-004LF provides higher Q factor (350 @ 3V, 50MHz), indicating lower diode losses at specified frequencies. The BB207,235 does not specify Q factor. For high-frequency, low-loss applications, the SMV1253-004LF offers superior performance characteristics.

Q: Are all substitutes available in the same packaging format?

A: Yes. All listed substitutes use TO-236-3, SC-59, or SOT-23-3 surface mount packages, ensuring mechanical compatibility with existing PCB layouts and automated assembly equipment. Supplier device packages vary (SOT-23 for BB207,235, S-Mini for 1SV228TPH3F, PG-SOT23 for BB814E6327GR1HTSA1, SOT-23-3 for SMV1253-004LF) but all are functionally equivalent in the TO-236-3 footprint.