Diodes Incorporated G20H100CTFW
- Part No.:
- G20H100CTFW
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
G20H100CTFW.pdf
- Description:
- DIODE ARR SCHOTTKY 100V ITO220AB
- Quantity:
- Payment:

- Shipping:

Inventory:40
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
G20H100CTFW from Diodes Incorporated is a trench Schottky rectifier rated for 100 V reverse voltage and 20 A average forward current at TC = 110°C, featuring low forward voltage (0.61 V typ. @ 10 A, 25°C), negligible switching losses, and AEC-Q101 qualified reliability for automotive-grade power conversion. It is used in high-frequency onboard DC-DC converters where thermal efficiency and fast recovery are critical.
For engineers reviewing the G20H100CTFW datasheet, G20H100CTFW pinout, G20H100CTFW application, or G20H100CTFW equivalent, key selection criteria include junction temperature range (–55°C to +175°C), thermal resistance (RthJC = 5°C/W), leakage current (0.38 µA @ 100 V, 25°C), and TO-220ABFP package compatibility with standard heatsink mounting.
Technical Context
This device employs a planar trench Schottky architecture to minimize forward voltage drop while maintaining low reverse leakage across wide temperature ranges. Its 685 pF junction capacitance at 1 MHz/4 V enables stable operation in high-frequency switch-mode topologies up to several hundred kHz.
The ITO-220(S)AB package integrates a copper leadframe and green molding compound (UL 94V-0), supporting direct heatsink attachment via Pin 2 (cathode tab). Thermal performance is validated per JESD-51 with aluminum fin heatsink (42 mm × 25 mm × 25.1 mm).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive peak reverse blocking capability for 12 V–48 V bus-derived DC-DC stages |
| I(AV) | 20 A @ TC = 110°C - Sustained output current rating under active heatsinking in compact adapters |
| VF | 0.61 V typ. @ 10 A, 25°C - Enables >92% efficiency in 12 V → 5 V/3.3 V buck converters at light-to-moderate load |
| IR | 0.38 µA @ 100 V, 25°C - Minimal standby power loss in always-on auxiliary rails |
| TJ Range | –55°C to +175°C - Supports under-hood automotive environments and industrial power supplies without derating |
| RthJC | 5°C/W - Allows thermal design margin of ≥25°C rise at 20 A with standard fin heatsink |
| CJ | 685 pF @ 1 MHz, 4 V - Limits high-frequency ringing in synchronous rectifier gate-drive paths |
Pinout & Package
Package: ITO-220(S)AB - Insulated TO-220 variant with plastic-isolated tab (Pin 2), RoHS-compliant lead-free finish, UL 94V-0 green molding compound, and 1.558 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Input-side terminal; connects to switching node or input rail; requires PCB copper pour for thermal conduction |
| Pin 2 | Cathode (Isolated Tab) | Output-side terminal and primary heat path; electrically isolated from heatsink but thermally coupled via plastic insulation |
| Pin 3 | Anode (Second Lead) | Parallel anode connection for current sharing and reduced trace inductance; must be routed symmetrically with Pin 1 |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 Rev. D qualified | Validated for automotive powertrain and body electronics applications requiring zero defect reliability over 15-year service life |
| Negligible switching losses | No minority-carrier storage delay; eliminates reverse recovery charge (Qrr ≈ 0), reducing EMI in >200 kHz SMPS |
| Low leakage at high TJ | 4 mA max @ 100 V, 125°C - Maintains <10 mW standby dissipation in hot ambient conditions |
| Halogen- and antimony-free "Green" construction | <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - Complies with EU Directive 2015/863/EU and OEM environmental requirements |
| Thermal resistance optimized | RthJL = 4°C/W (junction-to-lead) - Enables direct solder-mount thermal transfer to PCB ground plane without external heatsink |
Applications
| On-Board DC-DC Converters | High-Frequency Inverters |
|---|---|
|
Use Scenario: 48 V → 12 V step-down converter in electric vehicle battery management systems. IC Role / Device Role / Timing Role: Output rectifier in synchronous buck topology, operating at 300 kHz with 10–20 A load. Use Value: Low VF reduces conduction loss by ~1.2 W vs. standard Si diode; 175°C TJ rating avoids thermal shutdown during transient overload. |
Use Scenario: Auxiliary power supply in solar microinverters converting 30–60 V DC to 24 V AC line-synchronized output. IC Role / Device Role / Timing Role: Freewheeling diode in H-bridge output stage, handling bidirectional 15 A peak currents. Use Value: 685 pF CJ minimizes capacitive coupling into gate drivers; negligible Qrr prevents shoot-through risk during polarity reversal. |
| Compact AC-DC Adapters | Industrial Motor Drive Aux. Supplies |
|
Use Scenario: 100 W universal-input adapter (90–264 V AC) with active clamp flyback and 12 V/2 A output. IC Role / Device Role / Timing Role: Secondary-side rectifier operating at 132 kHz, replacing synchronous MOSFET for cost-sensitive designs. Use Value: 0.64 V VF @ 125°C maintains >89% efficiency at full load; TO-220ABFP footprint fits ≤20 mm board height constraints. |
Use Scenario: Isolated 24 V bias supply for IGBT gate drivers in HVAC variable-frequency drives. IC Role / Device Role / Timing Role: Output rectifier in forward converter delivering 1.5 A continuous to driver ICs and optocouplers. Use Value: 280 A IFSM withstands 3× motor stall surges; –55°C to +175°C range ensures startup reliability in unheated factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-20E100-M3 | Same 100 V/20 A rating; VF = 0.65 V @ 10 A, 25°C; RthJC = 5.5°C/W; TO-220AC package (non-isolated tab) | Requires insulating washer for heatsink mounting; higher VF increases conduction loss by ~0.4 W at 10 A | Select when legacy TO-220AC footprint is fixed and isolation is managed externally |
| ON Semiconductor MBR20100CT | 100 V/20 A; VF = 0.75 V @ 10 A, 25°C; RthJC = 6.0°C/W; TO-220AB (non-isolated tab); not AEC-Q101 qualified | Lacks automotive qualification and has 23% higher VF; junction temp limited to +150°C | Acceptable for industrial non-automotive use where cost is prioritized over thermal margin and qualification |
Compared with VS-20E100-M3 and MBR20100CT, G20H100CTFW delivers lower forward voltage, tighter thermal resistance, and AEC-Q101 compliance-making it the preferred choice for space-constrained, thermally demanding, and automotive-qualified designs where isolation and long-term reliability are mandatory.
Availability
G20H100CTFW is available at Aetrix Electronics and suitable for on-board DC-DC converters, high-frequency inverters, and compact AC-DC adapters requiring stable component supply, automotive-grade qualification, and consistent thermal performance across production volumes.
Supply support for G20H100CTFW 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-efficiency power management, signal integrity, and protection solutions for automotive, industrial, and consumer markets.
G20H100CTFW belongs to Diodes' AEC-Q101-qualified trench Schottky rectifier product line, engineered specifically for high-frequency, high-reliability power conversion in automotive and industrial environments where thermal robustness and low-loss rectification are essential.
FAQ
What is the maximum allowable case temperature for continuous 20 A operation?
The datasheet specifies I(AV) = 20 A at TC = 110°C. Operation above this temperature requires linear derating per Figure 1: at 125°C case temperature, maximum average current drops to approximately 16.5 A. Exceeding 110°C without derating risks thermal runaway due to positive temperature coefficient of forward voltage.
Is Pin 2 electrically isolated from the heatsink in the ITO-220(S)AB package?
Yes. Pin 2 is the cathode terminal mounted on an insulated metal tab. The plastic housing provides electrical isolation between the cathode and any heatsink it contacts, eliminating need for mica washers or insulating pads-though thermal interface material is still required for optimal heat transfer.
Does G20H100CTFW support paralleling for higher current capacity?
Yes-its dual-anode configuration (Pins 1 and 3) is explicitly designed for current sharing. To ensure balanced conduction, both anode leads must be routed with identical length, width, and copper weight; mismatch >5% in trace impedance causes >15% current imbalance at full load.
How does the 685 pF junction capacitance affect EMI in high-frequency designs?
At 300 kHz switching, the 685 pF CJ forms a resonant tank with parasitic inductance (~20 nH typical), producing a self-resonance near 28 MHz. This can amplify common-mode noise if layout lacks tight input/output loop control; best practice is to minimize loop area and add RC snubbers across the diode when ringing exceeds 500 mV peak-to-peak.
G20H100CTFW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack, Isolated Tab
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io) (per Diode):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 770 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 4 µA @ 100 V
- Operating Temperature - Junction:
- -55°C ~ 175°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
G20H100CTFW FAQ
1.How can I place an order for G20H100CTFW through Aetrix?
Please submit a Request for Quotation (RFQ) for G20H100CTFW 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 G20H100CTFW reliable?
The price and inventory of G20H100CTFW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for G20H100CTFW is usually 5 days.
3.What payment methods are accepted for G20H100CTFW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for G20H100CTFW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for G20H100CTFW?
G20H100CTFW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your G20H100CTFW 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 G20H100CTFW?
For technical support, including G20H100CTFW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your G20H100CTFW requirements.
6.How does Aetrix verify that G20H100CTFW is sourced from the original manufacturer or authorized distributors?
All G20H100CTFW 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 G20H100CTFW meets industry standards.
7.What is the process for return or replacement of G20H100CTFW?
All G20H100CTFW units undergo pre-shipment inspection (PSI). If there is an issue with G20H100CTFW, 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 G20H100CTFW part is unused and in its original packaging.
Return procedure for G20H100CTFW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
G20H100CTFW Tags

-
BAV99-7-F
Diodes Incorporated

-
BAT54C-7-F
Diodes Incorporated

-
BAV99,215
Nexperia USA Inc.

-
BAT54SLT1G
onsemi

-
BAV70LT1G
onsemi

-
BAT54CLT1G
onsemi

-
BAT54S-7-F
Diodes Incorporated

-
BAV99LT1G
onsemi

-
BAT54S,215
Nexperia USA Inc.

-
BAS40-04LT1G
onsemi

-
MMBD1503-TP
Micro Commercial Co

-
BAV99WT1G
onsemi
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
