My Inquiry
My Account
Taiwan Semiconductor Corporation SF12GHR0G
- Part No.:
- SF12GHR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
SF12GHR0G.pdf
- Description:
- DIODE GEN PURP 100V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,538
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SF12GHR0G from Taiwan Semiconductor is a 1 A, 100 V super fast rectifier diode in DO-204AL (DO-41) package, featuring 0.95 V forward voltage at 1 A and 35 ns reverse recovery time. It delivers low power loss and high reliability for DC-DC converters and freewheeling paths in automotive-grade switching power supplies.
For engineers reviewing the SF12GHR0G datasheet, SF12GHR0G pinout, SF12GHR0G application, or SF12GHR0G equivalent, key selection criteria include its AEC-Q101 qualification, 30 A surge rating, 150 °C max junction temperature, and DO-41 mechanical compatibility with legacy through-hole layouts.
Technical Context
This super fast rectifier uses a single-die silicon PN junction optimized for minimal reverse recovery charge (Qrr) and low forward conduction loss. Its 35 ns trr and 0.95 V VF at 1 A enable efficient operation in high-frequency switching topologies up to several hundred kHz.
The device operates across –55 °C to +150 °C junction temperature range and exhibits 5 µA reverse leakage at 25 °C and 100 µA at 125 °C under rated VR. Thermal resistance is 20 °C/W (junction-to-lead) and 80 °C/W (junction-to-ambient), supporting reliable conduction in constrained thermal environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse voltage; defines safe blocking capability in flyback or buck converter output stages |
| IF | 1 A - Continuous forward current rating; supports steady-state conduction in low-power SMPS outputs |
| IFSM | 30 A - Non-repetitive surge current (8.3 ms half-sine); withstands startup transients and short-circuit events |
| VF @ 1 A | 0.95 V - Forward voltage drop at rated DC current; directly determines conduction loss (0.95 W at 1 A) |
| trr | 35 ns - Reverse recovery time; enables stable operation in 100–500 kHz switching converters without excessive ringing |
| TJ max | +150 °C - Maximum junction temperature; allows use in under-hood automotive environments with limited heatsinking |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance; supports direct PCB copper pour heat sinking for thermal management |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case with cathode band marking. Leads are pure tin-plated and solderable per J-STD-002. Weight ≈ 0.350 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter or transformer secondary center-tap) |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to output rail or filter capacitor positive; blocks reverse voltage up to 100 V |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TC, HAST, and UHAST |
| Super fast recovery (35 ns) | Minimizes switching losses and EMI in high-frequency DC-DC converters operating above 100 kHz |
| Low VF (0.95 V @ 1 A) | Reduces conduction loss by ~15% vs. standard fast rectifiers (e.g., 1.1 V typical), improving efficiency at light-to-moderate loads |
| RoHS & halogen-free | Complies with IEC 61249-2-21; suitable for environmentally regulated industrial and automotive production |
| DO-41 mechanical standardization | Enables drop-in replacement in existing through-hole designs; compatible with automated axial insertion equipment |
Applications
| Automotive DC-DC Converters | Industrial Switch-Mode Power Supplies |
|---|---|
Use Scenario: 12 V to 5 V/3.3 V step-down conversion in engine control units (ECUs) and body control modules (BCMs). IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck converter topology. Use Value: AEC-Q101 qualification and 150 °C TJ rating ensure long-term reliability under under-hood thermal cycling. |
Use Scenario: Secondary-side rectification in 24 V input industrial SMPS for PLCs and HMIs. IC Role / Device Role / Timing Role: Freewheeling diode in flyback or forward converter output stage. Use Value: 35 ns trr prevents cross-conduction loss during MOSFET switching transitions, maintaining >88% efficiency at 250 kHz. |
| Consumer Adapter Rectification | LED Driver Freewheeling |
Use Scenario: AC-DC adapter output rectification for USB-C PD accessories and smart home hubs. IC Role / Device Role / Timing Role: Primary output rectifier in quasi-resonant flyback design. Use Value: 0.95 V VF reduces thermal load on compact PCB layouts, enabling smaller heatsink area or no heatsink. |
Use Scenario: Inductive current path clamping in constant-current LED drivers for street lighting. IC Role / Device Role / Timing Role: Freewheeling diode across boost inductor during MOSFET off-time. Use Value: Low Qrr and 30 A IFSM support high peak currents during PWM dimming without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R0100S | Same 1 A / 100 V rating, but TO-220AC package; VF = 0.97 V, trr = 30 ns; higher thermal mass | Requires PCB footprint change and heatsink mounting; better for >2 W continuous dissipation | Choose when higher power derating or forced-air cooling is needed; not a drop-in replacement |
| ON Semi MUR110E | 1 A / 100 V, DO-41, VF = 0.92 V, trr = 50 ns; non-AEC-Q101; RθJA = 75 °C/W | Lacks automotive qualification; slightly faster VF but slower recovery increases switching loss at >200 kHz | Acceptable for cost-sensitive industrial adapters where AEC-Q101 is not required |
Compared with STTH1R0100S and MUR110E, SF12GHR0G uniquely combines AEC-Q101 compliance, DO-41 form factor, and balanced VF/trr performance-making it optimal for space-constrained, thermally demanding automotive and industrial DC-DC designs requiring zero layout change.
Availability
SF12GHR0G is available at Aetrix Electronics and suitable for automotive ECUs, industrial SMPS, consumer adapters, and LED driver designs requiring stable component supply with full traceability and long-lifecycle support.
Supply support for SF12GHR0G 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, serving automotive, industrial, and consumer markets since 1979.
SF12GHR0G belongs to TSC's SF1xG super fast rectifier family, engineered specifically for high-efficiency, high-reliability power conversion in automotive and industrial applications where AEC-Q101 compliance and thermal robustness are mandatory.
FAQ
What does the 'H' and 'R0G' suffix mean in SF12GHR0G?
The 'H' indicates AEC-Q101 qualification per the ordering code table in the SF11G–SF18G datasheet. 'R0G' denotes green (halogen-free) molding compound compliant with IEC 61249-2-21. SF12GHR0G therefore specifies a 100 V, AEC-Q101-qualified, halogen-free super fast rectifier in DO-41 packaging - matching all electrical and mechanical specs of SF12G with enhanced automotive and environmental compliance.
Is SF12GHR0G pin-compatible with standard DO-41 rectifiers like 1N4007?
Yes, SF12GHR0G uses the standard DO-204AL (DO-41) package with axial leads and cathode band polarity marking, making it mechanically interchangeable with 1N4007 and other DO-41 diodes. However, SF12GHR0G is a super fast rectifier (35 ns trr), whereas 1N4007 is a general-purpose rectifier (30 µs trr); direct substitution requires circuit validation for switching speed and reverse recovery effects.
What is the maximum ambient temperature SF12GHR0G can operate at in a sealed enclosure?
With RθJA = 80 °C/W and TJ max = 150 °C, SF12GHR0G can sustain 1 A DC current at up to +70 °C ambient if PCB copper area provides adequate heat spreading. In a sealed enclosure with no airflow, derating is required: at TA = 60 °C, maximum continuous IF drops to ~0.85 A per the forward current derating curve in the SF11G–SF18G datasheet.
Does SF12GHR0G support reflow soldering or only wave soldering?
SF12GHR0G is rated for lead-free wave soldering per J-STD-002, with pure tin-plated leads. While not characterized for lead-free reflow, its DO-41 package and epoxy compound (UL 94V-0) tolerate peak reflow temperatures up to 260 °C for ≤10 seconds. For production, wave soldering is recommended; reflow requires process validation to avoid internal delamination or lead lift.
How does SF12GHR0G's 35 ns trr impact EMI in a 300 kHz flyback converter?
SF12GHR0G's 35 ns reverse recovery time limits high-frequency ringing during turn-off, reducing common-mode EMI generation compared to standard rectifiers (e.g., 1N4007). In a 300 kHz flyback, this enables cleaner switching node waveforms and typically lowers conducted EMI by 3–5 dB in the 30–100 MHz band - easing EMC certification when paired with appropriate snubbing and layout practices.
SF12GHR0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 100 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SF12GHR0G FAQ
1.How can I place an order for SF12GHR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SF12GHR0G 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 SF12GHR0G reliable?
The price and inventory of SF12GHR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF12GHR0G is usually 5 days.
3.What payment methods are accepted for SF12GHR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF12GHR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF12GHR0G?
SF12GHR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF12GHR0G 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 SF12GHR0G?
For technical support, including SF12GHR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF12GHR0G requirements.
6.How does Aetrix verify that SF12GHR0G is sourced from the original manufacturer or authorized distributors?
All SF12GHR0G 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 SF12GHR0G meets industry standards.
7.What is the process for return or replacement of SF12GHR0G?
All SF12GHR0G units undergo pre-shipment inspection (PSI). If there is an issue with SF12GHR0G, 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 SF12GHR0G part is unused and in its original packaging.
Return procedure for SF12GHR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SF12GHR0G Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
