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BA980-GS08 Equivalent & Substitute Parts
Part Overview
The BA980-GS08 is an RF Diode PIN - Single 30V 50 mA SOD-80 QuadroMELF component manufactured by Vishay General Semiconductor - Diodes Division. This part is classified as obsolete, making substitute components necessary for new designs and ongoing production requirements. The BA980-GS08 operates at a peak reverse voltage of 30V with a maximum current rating of 50 mA and is designed for RF applications requiring low capacitance and controlled resistance characteristics.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | BA980-GS08 |
| Manufacturer | Vishay General Semiconductor - Diodes Division |
| Diode Type | PIN - Single |
| Voltage - Peak Reverse (Max) | 30V |
| Current - Max | 50 mA |
| Capacitance @ Vr, F | 0.5pF @ 0V, 100MHz |
| Resistance @ If, F | 60Ohm @ 1.5mA, 100MHz |
| Operating Temperature | 125°C (TJ) |
| Package / Case | SOD-80 Variant (QuadroMELF) |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution for the BA980-GS08 is determined by the following critical parameters:
- Diode Type: PIN - Single configuration
- Voltage - Peak Reverse (Max): Minimum 30V capability
- Current - Max: Minimum 50 mA capability
- Capacitance @ Vr, F: Low capacitance for RF performance
- Resistance @ If, F: Controlled resistance at operating frequency
- Operating Temperature: Support for 125°C or higher junction temperature
- RoHS Compliance: ROHS3 Compliant status
Substitute parts are grouped into two categories:
Category 1 - Direct Vishay Substitutes (Same Manufacturer, Active Status) The BA679-GS08 is a direct Vishay substitute with identical electrical specifications (30V, 50 mA, 0.5pF capacitance) but features a MiniMELF package variant (SOD-80 MiniMELF) instead of QuadroMELF. This part is active and in production.
Category 2 - MACOM Technology Solutions Alternatives (Higher Performance Ratings) MACOM PIN diodes (MA4P series) provide enhanced electrical performance with higher voltage ratings (100V to 600V), increased power dissipation (6W to 11.5W), and extended operating temperature ranges (-55°C to 175°C). These parts exceed the BA980-GS08 specifications and are suitable for applications requiring higher voltage or power handling.
Parameter Comparison
| Parameter | BA980-GS08 | BA679-GS08 | MA4P1250-1072T | MA4P7001F-1072T | MA4P7002F-1072T | MA4P7006F-1072T | MA4P7101F-1072T | MA4P7102F-1072T | MA4P7104F-1072T |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Vishay | Vishay | MACOM | MACOM | MACOM | MACOM | MACOM | MACOM | MACOM |
| Diode Type | PIN - Single | PIN - Single | PIN - Single | PIN - Single | PIN - Single | PIN - Single | PIN - Single | PIN - Single | PIN - Single |
| Voltage - Peak Reverse (Max) | 30V | 30V | 100V | 100V | 200V | 600V | 200V | 200V | 400V |
| Current - Max | 50 mA | 50 mA | — | — | — | — | — | — | — |
| Capacitance @ Vr, F | 0.5pF @ 0V, 100MHz | 0.5pF @ 0V, 100MHz | 1.2pF @ 50V, 1MHz | — | — | — | 1pF @ 100V, 1MHz | — | — |
| Resistance @ If, F | 60Ohm @ 1.5mA, 100MHz | 50Ohm @ 1.5mA, 100MHz | 750mOhm @ 50mA, 100MHz | 900mOhm @ 100mA, 100MHz | 900mOhm @ 100mA, 100MHz | 900mOhm @ 100mA, 100MHz | 500mOhm @ 100mA, 100MHz | 500mOhm @ 100mA, 100MHz | 500mOhm @ 100mA, 100MHz |
| Power Dissipation (Max) | — | — | 6 W | 10 W | 10 W | 10 W | 11.5 W | 11.5 W | 11.5 W |
| Operating Temperature | 125°C (TJ) | 125°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) |
| Package / Case | SOD-80 QuadroMELF | SOD-80 MiniMELF | MELF | 2-SMD | 2-SMD | 2-SMD | ODS-1072 | 2-SMD | 2-SMD |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
For Direct Replacement (Preferred for Existing Designs)
The BA679-GS08 is the recommended substitute for the obsolete BA980-GS08. Both parts maintain identical electrical specifications: 30V peak reverse voltage, 50 mA maximum current, 0.5pF capacitance, and ROHS3 compliance. The BA679-GS08 is currently in active production with 55,200 units in stock, ensuring supply continuity. The primary difference is the package variant (MiniMELF vs. QuadroMELF), which may require PCB layout adjustment but maintains electrical equivalence.
For Enhanced Performance Applications
MACOM MA4P series PIN diodes are suitable for applications requiring higher voltage ratings or increased power dissipation beyond the BA980-GS08 specifications. Selection within the MA4P series depends on specific voltage and power requirements:
- MA4P1250-1072T: 100V, 6W (lowest power requirement)
- MA4P7001F-1072T: 100V, 10W
- MA4P7002F-1072T: 200V, 10W
- MA4P7006F-1072T: 600V, 10W (highest voltage rating)
- MA4P7101F-1072T: 200V, 11.5W (lowest resistance at 100mA)
- MA4P7102F-1072T: 200V, 11.5W
- MA4P7104F-1072T: 400V, 11.5W
All MACOM alternatives are active products with extended operating temperature ranges (-55°C to 175°C) and ROHS3 compliance. Package changes from SOD-80 to MELF or 2-SMD configurations require PCB redesign.
Frequently Asked Questions (FAQ)
Q: Can BA679-GS08 be used as a direct drop-in replacement for BA980-GS08?
A: The BA679-GS08 is electrically equivalent with identical voltage, current, and capacitance specifications. However, the package differs (MiniMELF vs. QuadroMELF), requiring PCB footprint modification. Both parts are PIN - Single diodes with 30V ratings and 0.5pF capacitance at 100MHz.
Q: What is the primary difference between BA980-GS08 and BA679-GS08?
A: The electrical specifications are identical. The BA980-GS08 uses SOD-80 QuadroMELF packaging, while BA679-GS08 uses SOD-80 MiniMELF packaging. The BA679-GS08 is in active production, whereas BA980-GS08 is obsolete.
Q: When should MACOM MA4P series diodes be selected instead of BA679-GS08?
A: MACOM alternatives are selected when applications require voltage ratings exceeding 30V, power dissipation greater than the Vishay parts provide, or extended operating temperature ranges below 125°C or above 125°C. The MA4P series supports -55°C to 175°C operation compared to the Vishay 125°C maximum.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. BA679-GS08 and all MACOM MA4P series alternatives listed are ROHS3 compliant, matching the compliance status of the BA980-GS08.
Q: What package considerations apply when switching from BA980-GS08 to MACOM alternatives?
A: MACOM parts use MELF or 2-SMD packages instead of SOD-80 variants. This requires PCB footprint redesign and potential changes to assembly processes. Verify mechanical compatibility with your PCB layout before implementation.
Q: Is inventory availability a factor in substitute selection?
A: Yes. BA679-GS08 has 55,200 units in stock, providing immediate availability. MACOM alternatives have varying inventory levels: MA4P1250-1072T (305,200 units), MA4P7001F-1072T (21,200 units), MA4P7002F-1072T (5,930 units), MA4P7006F-1072T (1,533 units), MA4P7101F-1072T (19,180 units), MA4P7102F-1072T (17,300 units), and MA4P7104F-1072T (4,800 units).
Q: Can resistance characteristics differ between BA980-GS08 and substitutes?
A: Yes. BA980-GS08 has 60Ohm resistance at 1.5mA, 100MHz. BA679-GS08 has 50Ohm at the same conditions. MACOM parts have higher resistance values (500mOhm to 900mOhm) at 100mA, 100MHz due to their higher power ratings. Verify resistance specifications match your circuit requirements.
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