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Taiwan Semiconductor Corporation SF38G A0G
- Part No.:
- SF38G A0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SF38G A0G.pdf
- Description:
- DIODE GEN PURP 600V 3A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:3
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Product details
Overview
SF38G A0G from Taiwan Semiconductor is a 3A, 600V super fast recovery rectifier diode in DO-201AD package, featuring 35ns reverse recovery time, 1.70V forward voltage at 3A/25°C, and 125A surge capability - used in high-efficiency DC-DC converters and switching inverters requiring low conduction loss and fast switching.
For engineers reviewing the SF38G A0G datasheet, SF38G A0G pinout, SF38G A0G application, or SF38G A0G equivalent, key selection criteria include VRRM = 600V, IF = 3A, trr = 35ns, VF = 1.70V (3A), and thermal resistance RθJL = 10°C/W for thermal design validation and reliability assessment in automotive-grade power supplies.
Technical Context
This discrete silicon rectifier uses a single-die planar junction structure optimized for high-speed switching with low stored charge. Its 35ns reverse recovery time enables operation in high-frequency SMPS topologies up to several hundred kHz while maintaining low switching losses.
The device meets AEC-Q101 stress test requirements when ordered with 'H' suffix (SF38GH), but SF38G A0G is the standard industrial-grade variant. It features pure tin-plated leads compliant with J-STD-002 and passes JESD201 Class 2 whisker testing for long-term solder joint integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - maximum repetitive reverse blocking voltage; defines usable input voltage range in offline or high-bus DC-DC designs |
| IF | 3 A - average forward current rating at case temperature ≤75°C; determines continuous power handling without derating |
| trr | 35 ns - reverse recovery time under IF=0.5A, IR=1.0A, Irr=0.25A; critical for minimizing switching loss in hard-switched converters |
| VF | 1.70 V @ 3A, 25°C - forward voltage drop; directly impacts conduction loss and thermal rise in high-current paths |
| RθJL | 10 °C/W - junction-to-lead thermal resistance; enables direct heatsinking via PCB copper or lead frame for thermal management |
| IFSM | 125 A - non-repetitive surge current (8.3ms half-sine); supports inrush and fault-current robustness in power supply inputs |
| CJ | 60 pF @ 1MHz, 4V - junction capacitance; influences EMI generation and snubber design in high-dV/dt applications |
Pinout & Package
DO-201AD axial-leaded package with cathode band marking; leads are pure tin-plated, solderable per J-STD-002, and meet UL 94V-0 flammability rating. Weight ≈1.10g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., switch node or ground return) in freewheeling or output rectification paths |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to higher-potential rail (e.g., output bus or transformer secondary high-side) |
Key Features
| Feature | Design Value |
|---|---|
| Super fast recovery | trr = 35 ns enables >200 kHz switching in flyback and forward converters without excessive turn-off loss |
| Low forward voltage | VF = 1.70 V @ 3A reduces conduction loss by ~15% vs. comparable 600V ultrafast diodes with VF > 1.95 V |
| High surge robustness | IFSM = 125 A supports 10× rated current surges, improving reliability during cold-start or short-circuit events |
| Halogen-free construction | Complies with IEC 61249-2-21; eliminates brominated flame retardants for safer end-of-life processing |
| Whisker-resistant plating | Passes JESD201 Class 2; prevents tin whisker growth in long-life industrial and automotive applications |
Applications
| DC-DC Converters | Switching Inverters |
|---|---|
Use Scenario: Secondary-side synchronous rectification replacement in isolated 48V–600V input DC-DC modules for telecom and server PSUs. IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during low-side switch off-time; blocks reverse voltage during high-side conduction. Use Value: 35ns trr minimizes reverse recovery loss, improving efficiency by 0.8–1.2% at 300 kHz compared to standard fast recovery diodes. | Use Scenario: Output stage rectification in three-phase motor drive inverters operating at 10–20 kHz PWM frequency. IC Role / Device Role / Timing Role: Unidirectional current path in inverter leg freewheeling paths; clamps inductive kickback during IGBT turn-off. Use Value: 125A IFSM withstands motor stall currents; 600V VRRM supports 400V DC bus with 50% safety margin. |
| Industrial Power Supplies | Automotive On-Board Chargers (OBC) |
Use Scenario: Input bridge rectification in universal-input (90–264VAC) industrial SMPS with PFC front-end. IC Role / Device Role / Timing Role: AC line rectifier converting mains to bulk DC; conducts full-wave current with minimal conduction loss. Use Value: 1.70V VF lowers heat generation in enclosed enclosures; RθJL = 10°C/W allows direct PCB copper thermal coupling. | Use Scenario: Secondary-side isolation rectification in bidirectional OBCs converting 400V DC battery to 400V AC grid. IC Role / Device Role / Timing Role: High-voltage output rectifier in dual-active-bridge topology; blocks reverse voltage during zero-voltage switching transitions. Use Value: 60pF CJ limits capacitive coupling noise into control circuitry; DO-201AD mechanical robustness supports vibration-prone under-hood mounting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L06S | VF = 1.75V @ 3A, trr = 30ns, RθJL = 12°C/W, TO-220AC package | Larger footprint, higher thermal resistance; requires heatsink for same IF | Preferred where higher surge rating (150A) and tighter trr tolerance are needed, despite larger size |
| ON Semi MUR360 | VF = 1.75V @ 3A, trr = 35ns, RθJL = 11°C/W, DO-201AD package | Identical package and trr, but slightly higher VF and no halogen-free certification | Drop-in alternative for cost-sensitive industrial designs where halogen-free compliance is not mandated |
Compared with STTH3L06S and MUR360, SF38G A0G offers identical DO-201AD form factor and matching trr, but delivers lower VF (1.70V) and halogen-free compliance - making it optimal for space-constrained, thermally sensitive, and environmentally regulated applications.
Availability
SF38G A0G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial power supplies requiring stable component supply, consistent parametric performance, and RoHS/halogen-free compliance across production batches.
Supply support for SF38G A0G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power rectifiers, TVS devices, and MOSFETs for industrial and automotive markets.
The SF3xG series was developed to deliver AEC-Q101-capable and industrial-grade super fast rectifiers with optimized VF/trr trade-offs across 50–600V voltage grades, targeting high-efficiency power conversion in constrained thermal environments.
FAQ
What is the maximum junction temperature rating for SF38G A0G?
The SF38G A0G has a maximum junction temperature (TJ) of +150°C, verified per absolute maximum ratings in the official TSC datasheet Version H2105. This rating applies under steady-state conditions with appropriate thermal management. Derating curves show that average forward current must be reduced above 75°C case temperature to maintain safe operation within this limit. The SF38G A0G's RθJL = 10°C/W supports effective heat transfer to PCB copper or external heatsinks.
Is SF38G A0G AEC-Q101 qualified?
No, SF38G A0G is not AEC-Q101 qualified. Only variants with the 'H' suffix (e.g., SF38GH) are AEC-Q101 qualified per the ordering information table in the TSC datasheet. SF38G A0G is the standard industrial-grade version, RoHS and halogen-free compliant, but intended for non-automotive applications unless independently validated. For automotive use, specify SF38GH or confirm qualification status with Taiwan Semiconductor's latest release documentation.
What does the 'A0G' suffix mean in SF38G A0G?
The 'A0G' suffix in SF38G A0G indicates packaging: 'A0' denotes 500-piece ammo box packaging, and 'G' signifies green (halogen-free) molding compound per IEC 61249-2-21. This differs from 'SF38G' (bulk or unspecified packaging) and 'SF38GH' (AEC-Q101 qualified + green compound). The SF38G A0G retains all electrical and thermal specifications of the base SF38G, with no performance impact from the A0G packaging designation.
How does SF38G A0G compare to SF37G in forward voltage?
SF38G A0G specifies VF = 1.70V max at 3A and 25°C, while SF37G (500V grade) is rated at 1.30V max under identical conditions - a 0.40V difference reflecting higher doping and lower series resistance in lower-voltage devices. This trade-off ensures SF38G A0G maintains sufficient blocking margin for 600V systems, though at higher conduction loss. Both share identical trr = 35ns and package, allowing direct substitution only if system voltage margin permits.
Can SF38G A0G be used in surface-mount designs?
No, SF38G A0G is not suitable for surface-mount assembly. It uses the axial-leaded DO-201AD package with through-hole mounting geometry. The leads are designed for wave or hand soldering into plated-through holes. Attempting reflow or paste printing will result in poor wetting, mechanical instability, and thermal stress failure. For SMT equivalents, consider discrete SOD-123 or SMA packages with comparable 600V/3A ratings - but note these differ in trr, VF, and thermal performance versus SF38G A0G.
SF38G A0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 600 V
- Capacitance @ Vr, F:
- 60pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -55°C ~ 150°C
SF38G A0G FAQ
1.How can I place an order for SF38G A0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SF38G A0G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SF38G A0G reliable?
The price and inventory of SF38G A0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF38G A0G is usually 5 days.
3.What payment methods are accepted for SF38G A0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF38G A0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF38G A0G?
SF38G A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF38G A0G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SF38G A0G?
For technical support, including SF38G A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF38G A0G requirements.
6.How does Aetrix verify that SF38G A0G is sourced from the original manufacturer or authorized distributors?
All SF38G A0G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SF38G A0G meets industry standards.
7.What is the process for return or replacement of SF38G A0G?
All SF38G A0G units undergo pre-shipment inspection (PSI). If there is an issue with SF38G A0G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SF38G A0G part is unused and in its original packaging.
Return procedure for SF38G A0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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