BA679-GS08 Equivalent & Substitute Parts

Part Overview

The BA679-GS08 is an RF PIN diode manufactured by Vishay General Semiconductor - Diodes Division, designed for RF applications requiring low capacitance and controlled resistance characteristics. This single PIN diode operates at a peak reverse voltage of 30V with a maximum current rating of 50 mA in a SOD-80 MiniMELF package. The part is active and in production, with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are necessary when higher voltage ratings, increased power dissipation, or alternative packaging configurations are required for specific circuit applications.

Substiute Parts

BA679-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 55259BA679-GS08 Datasheet

Current PartRFQ

MA4P1250-1072T

MACOM Technology SolutionsIn Stock: 305226MA4P1250-1072T Datasheet

MFR RecommendedRFQ

MA4P7001F-1072T

MACOM Technology SolutionsIn Stock: 21259MA4P7001F-1072T Datasheet

MFR RecommendedRFQ

MA4P7002F-1072T

MACOM Technology SolutionsIn Stock: 6022MA4P7002F-1072T Datasheet

MFR RecommendedRFQ

MA4P7006F-1072T

MACOM Technology SolutionsIn Stock: 1569MA4P7006F-1072T Datasheet

MFR RecommendedRFQ

MA4P7101F-1072T

MACOM Technology SolutionsIn Stock: 19228MA4P7101F-1072T Datasheet

MFR RecommendedRFQ

MA4P7102F-1072T

MACOM Technology SolutionsIn Stock: 17326MA4P7102F-1072T Datasheet

MFR RecommendedRFQ

MA4P7104F-1072T

MACOM Technology SolutionsIn Stock: 4825MA4P7104F-1072T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BA679-GS08 is determined by the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Diode Type: PIN - Single (all substitutes maintain this classification)
• Peak Reverse Voltage: Substitutes must equal or exceed 30V
• Package Classification: Substitutes operate in 2-SMD or MELF configurations
• RoHS3 Compliance: All substitutes maintain regulatory compliance
• Product Status: All substitutes are active

Voltage-Based Grouping: The substitute parts are organized by peak reverse voltage rating, ranging from 100V to 600V. Higher voltage ratings provide design margin for circuits operating near the BA679-GS08 maximum specification.

Resistance and Capacitance Characteristics: Substitute parts exhibit different resistance and capacitance profiles measured at different bias conditions. These variations reflect the trade-offs inherent in higher voltage device designs.

Power Dissipation: The BA679-GS08 does not specify power dissipation; substitute parts range from 6W to 11.5W, indicating enhanced thermal performance suitable for higher-power RF applications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain PIN diode single-element classification and RoHS3 compliance, ensuring regulatory compatibility with the BA679-GS08. All substitute parts are active products in current production.

Voltage Selection:

• MA4P1250-1072T and MA4P7001F-1072T: 100V rating provides 3.3x margin over BA679-GS08
• MA4P7002F-1072T and MA4P7101F-1072T, MA4P7102F-1072T: 200V rating provides 6.7x margin
• MA4P7104F-1072T: 400V rating provides 13.3x margin
• MA4P7006F-1072T: 600V rating provides 20x margin

Resistance Characteristics: Substitute parts exhibit higher series resistance compared to the BA679-GS08 (50Ohm baseline). MA4P7101F-1072T and MA4P7102F-1072T offer the lowest resistance among 200V-rated substitutes at 500mOhm, while MA4P1250-1072T provides 750mOhm at 100V.

Operating Temperature Range: All MACOM substitutes extend the operating temperature range to -55°C ~ 175°C, compared to the BA679-GS08 maximum of 125°C, providing enhanced thermal performance for demanding applications.

Inventory Availability: MA4P1250-1072T (305,200 pcs), MA4P7001F-1072T (21,200 pcs), MA4P7101F-1072T (19,180 pcs), and MA4P7102F-1072T (17,300 pcs) offer substantial stock levels for production requirements.

Frequently Asked Questions (FAQ)

Q: Can MA4P7001F-1072T directly replace BA679-GS08 in existing designs?

A: MA4P7001F-1072T is electrically compatible as a PIN diode substitute with higher voltage rating (100V vs. 30V). However, package differences must be evaluated: BA679-GS08 uses SOD-80 MiniMELF while MA4P7001F-1072T uses 2-SMD MELF configuration. PCB layout modifications may be required.

Q: What is the primary difference between MA4P7101F-1072T and MA4P7102F-1072T?

A: Both parts share identical electrical specifications: 200V peak reverse voltage, 500mOhm resistance at 100mA/100MHz, and 11.5W power dissipation. MA4P7101F-1072T is specified with ODS-1072 supplier device package, while MA4P7102F-1072T does not specify a supplier device package designation.

Q: Why does BA679-GS08 have lower resistance (50Ohm) compared to substitute parts?

A: The BA679-GS08 is optimized for 30V operation with lower current handling (50 mA max). Substitute parts rated for higher voltages (100V-600V) employ different semiconductor structures that result in higher series resistance as a trade-off for increased voltage capability.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts listed are RoHS3 compliant, maintaining regulatory compatibility with the BA679-GS08.

Q: Which substitute offers the best low-resistance performance?

A: MA4P7101F-1072T and MA4P7102F-1072T both provide 500mOhm at 100mA/100MHz, the lowest resistance among the 200V-rated substitutes. MA4P1250-1072T offers 750mOhm at 50mA/100MHz for 100V applications.

Q: What packaging considerations apply when substituting BA679-GS08?

A: The BA679-GS08 uses SOD-80 MiniMELF (DO-213AC) package. All MACOM substitutes use 2-SMD or MELF configurations. Physical dimensions and PCB footprints differ; design verification is required before implementation.