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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Infineon Technologies IDP09E120XKSA1

Name: IDP09E120XKSA1
Brand: Infineon Technologies
SKU: IDP09E120XKSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IDP09E120XKSA1

Manufacturer:: Infineon Technologies

Category:: Single Diodes

Package:: TO-220-2

Datasheet:: IDP09E120XKSA1.pdf

Description:: DIODE GP 1.2KV 23A TO220-2-1

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Product details

Overview

IDP09E120XKSA1 from Infineon Technologies is a fast-switching, soft-recovery silicon power diode rated for 1200 V repetitive reverse voltage and 9 A continuous forward current at T_C = 25 °C, with 1.65 V typical forward voltage drop at 9 A/25 °C and 140 ns reverse recovery time at 800 V, 9 A, 750 A/µs, 25 °C - deployed in high-frequency PFC stages of industrial SMPS and solar inverters.

For engineers reviewing the IDP09E120XKSA1 datasheet, IDP09E120XKSA1 pinout, IDP09E120XKSA1 application, or IDP09E120XKSA1 equivalent, key selection criteria include verified soft recovery (S = 5.4), low Q_rr (950 nC), thermal resistance R_thJC = 1.8 K/W, TO-220-2 package compatibility, and JEDEC-qualified operation up to 150 °C junction temperature.

Technical Context

This diode employs optimized epitaxial and lifetime control processes to achieve fast, soft reverse recovery with low stored charge - critical for reducing EMI and switching losses in hard-commutated boost converters. Its dynamic parameters are characterized across temperature (25–150 °C) and di/dt (200–1000 A/µs), enabling accurate loss modeling in high-efficiency designs.

The device operates with a maximum junction temperature of 150 °C and exhibits stable forward voltage drift (1.65 V @ 25 °C → 2.15 V @ 150 °C) and reverse recovery degradation (trr = 140 ns → 210 ns), supporting thermal-aware layout and derating strategies in convection-cooled systems.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1200 V - supports DC-link voltages up to 1000 V in 3-phase rectifiers and PV string inverters
I_F (T_C=25°C)	9 A - continuous conduction capability at case temperature 25 °C; derates to 14.4 A at 90 °C
V_F @ 9 A / 25 °C	1.65 V - enables <15 W conduction loss per diode in 10 kW PFC stages
t_rr @ 800 V / 9 A / 750 A/µs	140 ns - ensures minimal turn-off tail current and reduced snubber stress in 50–100 kHz operation
Q_rr @ 25 °C	950 nC - lowers commutation loss and EMI generation versus standard ultrafast diodes
R_thJC	1.8 K/W - allows direct heatsink mounting with predictable thermal margin in TO-220-2 footprint
S (softness factor)	5.4 - suppresses voltage overshoot and ringing during diode turn-off in inductive circuits

Pinout & Package

Package: PG-TO220-2 (standard through-hole TO-220 variant with 2 leads: Cathode and Anode; no gate or sense pins). Mounting tab is electrically connected to cathode.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Tab)	Cathode	Electrically active mounting surface; requires insulated washer or thermal pad when mounted to common heatsink
Pin 2	Anode	Main current entry point; soldered to PCB trace or busbar; not isolated from package tab
Pin 3	Not present	PG-TO220-2 has only two terminals; third position is mechanical support, not electrically functional

Key Features

Feature	Design Value
Soft reverse recovery	S = 5.4 at 25 °C - reduces voltage spikes and snubber losses in hard-switched topologies
Low Q_rr	950 nC - cuts turn-off energy loss by >35% vs. standard fast diodes in same rating
Pb-free & halogen-free	RoHS-compliant plating and IEC61249-2-21 compliant materials - meets industrial environmental mandates
JEDEC qualification	Qualified per JESD47 for target applications - validated reliability for 10+ year field life in power supplies

Applications

Industrial SMPS PFC Stage

Solar String Inverter DC-Link

Use Scenario: Boost PFC front-end operating at 65–100 kHz with 800 V DC-link in 15–25 kW server PSUs.

IC Role / Device Role / Timing Role: Fast-recovery freewheeling diode in continuous conduction mode (CCM) boost stage.

Use Value: 140 ns t_rr and 950 nC Q_rr reduce switching loss by 2.1 W per diode versus legacy 1200 V ultrafast parts.

Use Scenario: DC-link clamping and freewheeling in dual-stage transformerless solar inverters with 1000 V MPPT range.

IC Role / Device Role / Timing Role: High-voltage output rectifier and anti-parallel path for IGBTs in H-bridge configuration.

Use Value: Soft recovery (S = 5.4) limits dv/dt-induced shoot-through risk and eliminates need for external RC snubbers.

Motor Drive Brake Circuit

UPS Inverter Output Stage

Use Scenario: Regenerative braking path in 30–50 kW HVAC compressors using 1200 V IGBT modules.

IC Role / Device Role / Timing Role: Freewheeling diode paralleled across IGBT collector-emitter to return inductive energy.

Use Value: Low forward voltage (1.65 V) minimizes conduction loss during extended brake pulses; easy paralleling enabled by positive tempco.

Use Scenario: Output stage anti-parallel diode in online double-conversion UPS with 600–800 V battery bank and 230 V AC output.

IC Role / Device Role / Timing Role: Synchronous rectification path during inverter dead-time and fault commutation.

Use Value: 150 °C max junction rating supports compact heatsinking in space-constrained rack-mount enclosures.

Equivalent & Alternatives

The following parts are listed as comparable options for similar fast-recovery diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH12R06DJF	600 V V_RRM, 12 A I_F, 1.75 V V_F, 120 ns t_rr, TO-220AC package	Lower voltage rating limits use to ≤500 V DC-link; higher I_F suits higher-current but lower-voltage designs	Select when system DC-link is ≤600 V and higher average current handling is prioritized over voltage margin
IXYS MUR1220CT	200 V V_RRM, dual common-cathode, 12 A per diode, 1.15 V V_F, 35 ns t_rr	Designed for low-voltage, high-speed SMPS; unsuitable for >400 V applications due to voltage rating	Choose only for sub-200 V secondary-side rectification where ultra-low t_rr and V_F outweigh voltage headroom needs

Compared with STTH12R06DJF and IXYS MUR1220CT, IDP09E120XKSA1 uniquely balances 1200 V rating, soft recovery, and low Q_rr - making it irreplaceable in 800–1000 V DC-link PFC and inverter applications where voltage margin and EMI control are non-negotiable.

Availability

IDP09E120XKSA1 is available at Aetrix Electronics and suitable for industrial SMPS PFC stages, solar string inverters, motor drive brake circuits, and UPS inverter output stages requiring stable component supply, long-term lifecycle assurance, and JEDEC-qualified reliability.

Supply support for IDP09E120XKSA1 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

Infineon Technologies AG is a German semiconductor manufacturer specializing in power, sensor, and automotive ICs, with global manufacturing and R&D centers.

IDP09E120XKSA1 belongs to Infineon's "High Voltage Diodes" product line, engineered specifically for high-efficiency, high-reliability power conversion in industrial and renewable energy systems operating up to 150 °C junction temperature.

FAQ

Is IDP09E120XKSA1 RoHS and halogen-free compliant?

Yes. The device features Pb-free lead plating and complies with RoHS Directive 2011/65/EU. It is also halogen-free per IEC61249-2-21, confirmed in Infineon's material declaration document 2009-08-19 Rev.2.3, Page 1.

What is the thermal resistance from junction to case (R_thJC)?

R_thJC is 1.8 K/W maximum, measured under steady-state conditions with proper mounting torque and thermal interface material. This value is specified on Page 2 of the datasheet and enables accurate heatsink sizing for conduction-limited designs.

Can IDP09E120XKSA1 be paralleled for higher current handling?

Yes - its positive temperature coefficient of forward voltage promotes natural current sharing. The datasheet explicitly lists "Easy paralleling" as a feature (Page 1), and derating curves (Page 4) confirm stable behavior up to 150 °C junction temperature under balanced thermal conditions.

Does IDP09E120XKSA1 have an insulated package or isolated tab?

No. The metal tab (Pin 1) is electrically connected to the cathode terminal. Electrical isolation requires an insulating washer or mica pad between tab and heatsink - a requirement clearly stated in Infineon's mounting guidelines and reflected in the Pinout & Package section.

IDP09E120XKSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: TO-220-2

Packaging:: Bulk

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 1200 V

Current - Average Rectified (Io):: 23A

Voltage - Forward (Vf) (Max) @ If:: 2.15 V @ 9 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 140 ns

Current - Reverse Leakage @ Vr:: 100 µA @ 1200 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: PG-TO220-2-1

Operating Temperature - Junction:: -55°C ~ 150°C

IDP09E120XKSA1 FAQ

1.How can I place an order for IDP09E120XKSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IDP09E120XKSA1 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 IDP09E120XKSA1 reliable?

The price and inventory of IDP09E120XKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDP09E120XKSA1 is usually 5 days.

3.What payment methods are accepted for IDP09E120XKSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDP09E120XKSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IDP09E120XKSA1?

IDP09E120XKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IDP09E120XKSA1 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 IDP09E120XKSA1?

For technical support, including IDP09E120XKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDP09E120XKSA1 requirements.

6.How does Aetrix verify that IDP09E120XKSA1 is sourced from the original manufacturer or authorized distributors?

All IDP09E120XKSA1 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 IDP09E120XKSA1 meets industry standards.

7.What is the process for return or replacement of IDP09E120XKSA1?

All IDP09E120XKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with IDP09E120XKSA1, 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 IDP09E120XKSA1 part is unused and in its original packaging.

Return procedure for IDP09E120XKSA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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