August 06, 2025
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In today's rapidly evolving power electronics market, the demand for reliable, high-voltage diode arrays continues to grow. The SFF1004GA from Taiwan Semiconductor Corporation stands out as a robust solution, offering a 200V reverse voltage rating and 10A forward current capacity in a compact TO-220-3 package. With its fast recovery time (35ns) and isolated tab design, this common-anode diode pair is ideal for power supplies, motor drives, and industrial equipment. Read on to discover how the SFF1004GA combines performance with versatility to meet modern design challenges.
The SFF1004GA is a discontinued but still relevant standard recovery diode array featuring:
Configuration: 1 Pair Common Anode
Package: TO-220-3 Full Pack with Isolated Tab (ITO-220AB)
Technology: Standard Fast Recovery (<500ns)
| Parameter | Value | Test Condition |
|---|---|---|
| DC Reverse Voltage (VR) | 200V (Max) | - |
| Average Rectified Current (Io) | 10A per diode | DC |
| Forward Voltage (VF) | 975mV (Max) | @ 5A |
| Reverse Recovery Time (trr) | 35ns | >200mA Io |
| Reverse Leakage Current | 10µA | @ 200V |
| Junction Temperature Range | -55°C to +150°C | - |
Source: Taiwan Semiconductor SFF1004GA Datasheet
When choosing the SFF1004GA for your design:
Voltage Requirements: Ensure your application's peak reverse voltage stays below 200V.
Current Needs: The 10A rating suits medium-power applications; consider parallel diodes for higher currents.
Thermal Management: The isolated tab allows flexible mounting to heatsinks (thermal resistance: 3°C/W junction-to-case).
Switching Speed: 35ns recovery time makes it suitable for switching frequencies up to 100kHz.
The SFF1004GA excels in:
Power Supplies: Used in AC-DC converter output stages
Motor Drives: Freewheeling diodes in H-bridge configurations
Industrial Equipment: Snubber circuits and reverse polarity protection
Automotive Systems: Alternator rectification (secondary circuits)
While discontinued at Digi-Key, the SFF1004GA remains available through distributors like Censtry. The TO-220 package accounts for ~22% of power diode shipments (Source: Electronics360, 2023). Key trends:
Growing demand for 150-300V diodes in renewable energy systems
Increased need for isolated-tab packages in safety-critical applications
Shift toward higher efficiency (lower VF) devices in consumer electronics
| Model | VR | Io | trr | Package | Status |
|---|---|---|---|---|---|
| SFF1004GA | 200V | 10A | 35ns | TO-220-3 | Discontinued |
| FFPF10U40S | 400V | 10A | 50ns | TO-220F | Active |
| STTH10R06D | 600V | 10A | 25ns | TO-220AC | Active |
Why Choose SFF1004GA? When 200V rating suffices, its faster recovery and lower cost make it preferable to higher-voltage alternatives.
Q1: Is the SFF1004GA RoHS compliant?
A: Yes, the TO-220-3 package meets RoHS 2.0 standards.
Q2: Can I parallel multiple SFF1004GAs for higher current?
A: Yes, but include current-balancing resistors (0.1Ω recommended).
Q3: What's the typical junction capacitance?
A: Approximately 150pF at 4V, 1MHz (refer to datasheet for curves).
Q4: Is this suitable for flyback converter designs?
A: Yes, its fast recovery makes it appropriate for <100kHz flyback topologies.
Q5: Where can I find replacement suggestions?
A: Contact [email protected] for cross-reference options.
While newer silicon carbide (SiC) diodes offer superior performance, the SFF1004GA remains cost-effective for:
Legacy equipment maintenance
Price-sensitive industrial controls
Educational/prototyping applications
The SFF1004GA diode array delivers reliable 200V/10A performance in a versatile TO-220 package. Its balanced characteristics make it a practical choice for power conversion and protection circuits. For pricing and availability, contact Taiwan Semiconductor specialists at [email protected].
