Taiwan Semiconductor Corporation 6A20G R0G
- Part No.:
- 6A20G R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- R-6, Axial
- Datasheet:
-
6A20G R0G.pdf
- Description:
- DIODE GEN PURP 200V 6A R-6
- Quantity:
- Payment:

- Shipping:

Inventory:4,594
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
6A20G R0G from Taiwan Semiconductor is a glass-passivated standard rectifier diode with 200 V repetitive peak reverse voltage (VRRM), 6 A average forward current (IF), and 250 A surge capability (IFSM), designed for high-reliability DC-DC converters and switching-mode inverters.
For engineers reviewing the 6A20G R0G datasheet, 6A20G R0G pinout, 6A20G R0G application, or 6A20G R0G equivalent, key selection criteria include its R-6 package thermal resistance (35 °C/W), low forward voltage (1.0 V @ 6 A, 25 °C), and AEC-Q101 qualification option - critical for automotive power supply designs requiring robust surge immunity and long-term junction stability up to 150 °C.
Technical Context
This single-die standard rectifier operates in unidirectional conduction mode with cathode-band polarity marking. Its glass-passivated junction ensures stable reverse leakage (<10 µA @ 25 °C, <100 µA @ 125 °C) and high reliability under repeated surge stress (8.3 ms half-sine).
Thermally, it uses an R-6 molded package with UL 94V-0 compound and pure tin-plated leads. Junction-to-ambient thermal resistance is fixed at 35 °C/W, enabling sustained 6 A operation within ambient limits when heatsinking is applied per derating curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - maximum non-repetitive reverse voltage the device blocks without breakdown |
| IF | 6 A - continuous average forward current rating at TA = 25 °C with adequate heatsinking |
| IFSM | 250 A - peak non-repetitive surge current tolerance for 8.3 ms half-sine waveform |
| VF | 1.0 V @ 6 A, 25 °C - forward voltage drop determining conduction loss in power stage design |
| TJ max | 150 °C - maximum allowable junction temperature defining thermal design margin |
| RθJA | 35 °C/W - thermal resistance from junction to ambient, used to calculate temperature rise under load |
| CJ | 60 pF @ 1 MHz, 4 V - junction capacitance affecting high-frequency switching behavior and EMI |
Pinout & Package
R-6 package: axial-leaded, molded epoxy case with cathode band marking; lead finish is pure tin, solderable per J-STD-002; meets JESD 201 Class 2 whisker test and UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of source (e.g., transformer secondary or switch node) |
| Cathode | Forward current exit point | Marked by band; connects to output rail or filter capacitor positive terminal |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable IR performance across temperature and humidity, supporting 15-year field life in industrial environments |
| Low VF (1.0 V @ 6 A) | Reduces conduction loss by ~15% vs. comparable 1.15 V diodes, improving efficiency in 12–48 V DC-DC stages |
| 250 A IFSM rating | Withstands cold-start surges and transient overloads without degradation in SMPS front-end rectification |
| R-6 mechanical robustness | UL 94V-0 molding and 1.65 g mass provide mechanical stability in vibration-prone automotive and industrial mounting |
Applications
| Automotive DC-DC Converters | Industrial Switch-Mode Inverters |
|---|---|
Use Scenario: 12 V to 48 V bidirectional DC-DC conversion in 48 V mild-hybrid vehicle architectures. IC Role / Device Role / Timing Role: Primary output rectifier in synchronous or quasi-resonant flyback topology. Use Value: 200 V VRRM and 250 A IFSM ensure safe operation during load dump transients and battery reversal events. | Use Scenario: Output rectification in 3 kW three-phase motor drive inverters with regenerative braking. IC Role / Device Role / Timing Role: Freewheeling diode in IGBT-based H-bridge output stage. Use Value: Low VF minimizes conduction loss during high-current freewheeling, reducing heatsink size by ~20%. |
| Telecom Power Supplies | Renewable Energy Charge Controllers |
Use Scenario: Secondary-side rectification in 48 V telecom rectifier modules operating at 90–100 kHz switching frequency. IC Role / Device Role / Timing Role: High-current output rectifier in phase-shifted full-bridge converter. Use Value: 60 pF junction capacitance limits displacement current and EMI generation at high dv/dt edges. | Use Scenario: PV array bypass diode protection and MPPT-stage rectification in off-grid solar charge controllers. IC Role / Device Role / Timing Role: Bypass diode in series-connected PV strings and output rectifier in buck-derived charging stage. Use Value: 150 °C TJ max and -55 °C to +150 °C storage range support outdoor deployment in desert and arctic climates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH6S20FP (STMicroelectronics) | TO-220FP package, 200 V VRRM, 6 A IF, VF = 1.15 V @ 6 A | Higher thermal mass but requires PCB footprint change; not axial-leaded | Select when higher surge margin (300 A IFSM) and TO-220 mounting are preferred over R-6 space constraints |
| VS-6EWH02-M3/45 (Vishay) | DO-201AD package, 200 V VRRM, 6 A IF, VF = 1.05 V @ 6 A, RθJA = 45 °C/W | Smaller outline but higher thermal resistance; limited to lower ambient or forced-air cooling | Select when board space is constrained and peak ambient remains ≤50 °C with airflow |
Compared with STTH6S20FP and VS-6EWH02-M3/45, the 6A20G R0G offers optimal balance of axial-leaded R-6 compatibility, 35 °C/W thermal resistance, and 1.0 V VF - making it ideal for cost-sensitive, high-volume industrial and automotive power supplies where lead-forming and tape-and-reel automation are required.
Availability
6A20G R0G is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switch-mode inverters, and telecom power supplies requiring stable component supply with consistent R-6 packaging and AEC-Q101-ready variants.
Supply support for 6A20G R0G 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 global industrial, automotive, and consumer markets since 1979.
The 6AxxG family targets high-reliability power conversion applications, emphasizing ruggedized packaging, surge resilience, and extended temperature operation - specifically engineered for front-end rectification in harsh-environment power systems.
FAQ
What is the maximum junction temperature rating for the 6A20G R0G?
The 6A20G R0G has a maximum junction temperature (TJ max) of +150 °C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet (Version F2104). This rating allows reliable operation in high-ambient environments such as engine compartments or enclosed industrial enclosures, provided thermal design respects the 35 °C/W RθJA limit and derates current above 25 °C ambient per the forward current derating curve.
Is the 6A20G R0G AEC-Q101 qualified?
The base 6A20G R0G is not AEC-Q101 qualified; however, the variant 6A20GH R0G (with "H" suffix) is explicitly AEC-Q101 qualified per the ordering information table in the Taiwan Semiconductor datasheet. Engineers requiring automotive-grade validation must specify the "H" version - the R0G suffix denotes R-6 packaging and green compound, not qualification status.
What does the "R0G" suffix mean in 6A20G R0G?
The "R0G" suffix in 6A20G R0G indicates R-6 package type ("R") and green molding compound ("G"), per Taiwan Semiconductor's marking and ordering conventions. "0" is a placeholder confirming standard (non-AEC-Q101) grade. It does not denote date code, factory, or revision - those appear separately as YWW and F in the full marking diagram.
How does the forward voltage of 6A20G R0G compare to lower-voltage variants like 6A05G?
The 6A20G R0G specifies VF = 1.0 V @ 6 A, 25 °C, whereas 6A05G and 6A10G list VF = 1.1 V under identical conditions. This 0.1 V reduction reflects process optimization for mid-voltage (200–1000 V) variants, directly lowering conduction losses in medium-voltage power supplies where 6A20G R0G is most commonly deployed.
Can the 6A20G R0G be used as a direct replacement for 6A20G without the R0G suffix?
Yes - the "R0G" suffix is a packaging and material designation (R-6, green compound), not a functional differentiation. All 6A20G devices share identical electrical specifications including VRRM = 200 V, IF = 6 A, VF = 1.0 V, and IFSM = 250 A. The 6A20G R0G is functionally and electrically identical to bare 6A20G in R-6 packaging; "R0G" simply confirms compliance with RoHS and halogen-free standards per IEC 61249-2-21.
6A20G R0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- R-6, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 6A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 6 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 200 V
- Capacitance @ Vr, F:
- 60pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- R-6
- Operating Temperature - Junction:
- -55°C ~ 150°C
6A20G R0G FAQ
1.How can I place an order for 6A20G R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 6A20G R0G 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 6A20G R0G reliable?
The price and inventory of 6A20G R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 6A20G R0G is usually 5 days.
3.What payment methods are accepted for 6A20G R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6A20G R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6A20G R0G?
6A20G R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6A20G R0G 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 6A20G R0G?
For technical support, including 6A20G R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6A20G R0G requirements.
6.How does Aetrix verify that 6A20G R0G is sourced from the original manufacturer or authorized distributors?
All 6A20G R0G 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 6A20G R0G meets industry standards.
7.What is the process for return or replacement of 6A20G R0G?
All 6A20G R0G units undergo pre-shipment inspection (PSI). If there is an issue with 6A20G R0G, 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 6A20G R0G part is unused and in its original packaging.
Return procedure for 6A20G R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
6A20G R0G 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…

