BAP70-04W,115 RF PIN Diode Equivalent & Substitute Parts

Part Overview

The BAP70-04W,115 is an RF PIN diode manufactured by NXP USA Inc., classified as a PIN - 1 Pair Series Connection diode in SC-70 (SOT-323) packaging. This component is rated for 50V peak reverse voltage and 100 mA maximum current with 260 mW power dissipation capability. The part is currently listed as obsolete, making identification of functionally equivalent substitute components necessary for ongoing design support and production continuity. Substitute parts must maintain compatibility with the SC-70 package footprint and preserve RF performance characteristics within acceptable operating parameters.

Substiute Parts

BAP70-04W,115

NXP USA Inc.In Stock: 765BAP70-04W,115 Datasheet

Current PartRFQ

MADP-007436-1146DT

MACOM Technology SolutionsIn Stock: 1054MADP-007436-1146DT Datasheet

MFR RecommendedRFQ

MADP-007448-1146DT

MACOM Technology SolutionsIn Stock: 12833MADP-007448-1146DT Datasheet

MFR RecommendedRFQ

MADP-007455-1146DT

MACOM Technology SolutionsIn Stock: 3004MADP-007455-1146DT Datasheet

MFR RecommendedRFQ

RN779FFHT106

Rohm SemiconductorIn Stock: 4199RN779FFHT106 Datasheet

MFR RecommendedRFQ

RN779FT106

Rohm SemiconductorIn Stock: 29426RN779FT106 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Package Compatibility: All substitute parts must use SC-70 or SOT-323 packaging to ensure PCB footprint compatibility.

Diode Type: All substitutes must be PIN - 1 Pair Series Connection diodes to maintain functional equivalence in RF switching and attenuation applications.

Electrical Parameters: Substitute parts must meet or exceed the following minimum specifications:

• Voltage - Peak Reverse (Max): ≥ 50V
• Current - Max: ≥ 100 mA
• Power Dissipation (Max): ≥ 260 mW

Compliance Requirements: All substitute parts must maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating for manufacturing compatibility.

The substitute parts are grouped into two categories based on electrical performance:

Category A - Enhanced Voltage Rating (MACOM SMPP Series): MADP-007436-1146DT, MADP-007448-1146DT, and MADP-007455-1146DT provide higher peak reverse voltage ratings (75V to 100V) with increased current capacity (150 mA) and active product status.

Category B - Matched Voltage Rating (Rohm Semiconductor): RN779FT106 and RN779FFHT106 maintain the 50V peak reverse voltage specification with automotive-grade qualification (AEC-Q101) and active product status.

Parameter Comparison

Engineering Selection Recommendations

For Direct Voltage and Current Matching: RN779FT106 and RN779FFHT106 provide the closest electrical specification alignment to the BAP70-04W,115, maintaining 50V peak reverse voltage and SC-70 package compatibility. Both parts are active products with ROHS3 compliance and AEC-Q101 automotive qualification. However, these parts are rated for 50 mA maximum current, which is below the original 100 mA specification.

For Enhanced Performance Margin: MADP-007436-1146DT, MADP-007448-1146DT, and MADP-007455-1146DT offer higher voltage ratings (75V to 100V) and increased current capacity (150 mA), providing design margin for applications requiring higher stress tolerance. These parts are active products with extended operating temperature ratings (175°C). SC-70-3 package designation indicates compatibility with SC-70 footprints.

Compliance Considerations: All substitute parts maintain MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing processes. RN779 series parts carry ROHS3 compliance and REACH Unaffected status matching the original part. MACOM parts do not specify RoHS status in provided data.

Frequently Asked Questions (FAQ)

Q: Can RN779FT106 or RN779FFHT106 be used as direct replacements for BAP70-04W,115?

A: These parts share the same 50V peak reverse voltage rating and SC-70 package, but are rated for 50 mA maximum current versus the original 100 mA specification. Selection depends on actual circuit current requirements. If the application operates at or below 50 mA, these parts are functionally compatible.

Q: What is the difference between MADP-007448-1146DT and MADP-007455-1146DT?

A: Both parts are rated for 100V peak reverse voltage and 150 mA maximum current in SC-70-3 packaging. The primary difference is capacitance specification: MADP-007448-1146DT is rated at 0.25pF @ 50V, 1MHz, while MADP-007455-1146DT is rated at 0.35pF @ 50V, 1MHz. Selection should be based on RF circuit impedance matching requirements.

Q: Are MACOM SMPP series parts compatible with existing PCB layouts designed for BAP70-04W,115?

A: MACOM parts use SC-70-3 package designation versus the original SC-70. Both designations refer to the same physical footprint and pin configuration. PCB layout compatibility is maintained, though design verification is recommended for high-frequency applications.

Q: Which substitute part offers the best overall compatibility?

A: Selection depends on application requirements. For voltage and current matching within design margins, MADP-007448-1146DT or MADP-007455-1146DT provide enhanced specifications with active product status. For exact voltage matching with automotive qualification, RN779FT106 is suitable for applications operating at 50 mA or below.

Q: Do all substitute parts meet RoHS3 compliance?

A: RN779FT106 and RN779FFHT106 explicitly state ROHS3 compliance. MACOM SMPP series parts do not specify RoHS status in provided documentation. Compliance verification with component suppliers is recommended for regulated applications.