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

Infineon Technologies IDP09E120

Name: IDP09E120
Brand: Infineon Technologies
SKU: IDP09E120
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IDP09E120

Manufacturer:: Infineon Technologies

Category:: Single Diodes

Package:: TO-220-2

Datasheet:: IDP09E120.pdf

Description:: DIODE GEN PURP 1.2KV 23A TO220-2

Quantity:: RFQ Add To RFQ list

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Inventory:6,297

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Product details

Overview

IDP09E120 from Infineon Technologies is a fast-switching, soft-recovery 1200 V, 9 A ultrafast rectifier diode in PG-TO220-2 package, featuring 1.65 V forward voltage at 9 A and 25 °C, 140 ns reverse recovery time at 25 °C, and low 950 nC reverse recovery charge - optimized for high-frequency PFC and industrial SMPS.

For engineers reviewing the IDP09E120 datasheet, IDP09E120 pinout, IDP09E120 application, or IDP09E120 equivalent, key selection criteria include V_RRM = 1200 V, I_F = 9 A (continuous), soft recovery (S = 5.4), low Q_rr, and TO-220-2 thermal performance (R_thJC = 1.8 K/W).

Technical Context

This diode employs advanced silicon epitaxial technology to achieve fast, soft reverse recovery with controlled tail current decay - critical for minimizing EMI and switching losses in hard-commutated topologies. Its low Q_rr (950–1600 nC) and high S-factor (5.4–6.6) reduce voltage overshoot during turn-off across temperature.

The PG-TO220-2 package provides direct thermal path from junction to case (R_thJC = 1.8 K/W), enabling reliable operation up to T_j = 150 °C with 14.4 A continuous current at T_C = 90 °C - supporting compact heatsink designs in high-power converters.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1200 V - supports DC-link voltages up to 800 V in boost PFC and 3-phase rectification with margin
I_F (T_C=25°C)	23 A - peak continuous conduction capability under ideal heatsinking
V_F @ 9 A, 25°C	1.65 V - enables <1.5 W conduction loss per diode at rated current
t_rr @ 25°C	140 ns - ensures minimal switching overlap loss in 100–300 kHz SMPS
Q_rr @ 25°C	950 nC - reduces turn-off dv/dt stress and snubber requirements
S-factor @ 25°C	5.4 - quantifies softness; suppresses voltage ringing and EMI in hard-switched circuits
R_thJC	1.8 K/W - allows 38.3 W power dissipation before reaching T_j = 150 °C at T_C = 25 °C

Pinout & Package

PG-TO220-2 package with isolated tab (pin 1 = cathode, pin 2 = anode, pin 3 = case/thermal pad). The metal tab is electrically connected to the cathode and serves as primary thermal interface.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Cathode	Main current exit terminal; electrically tied to metal tab for low-inductance, high-current return path
Pin 2	Anode	Main current entry terminal; designed for PCB through-hole mounting with mechanical stability
Pin 3 (Tab)	Thermal / Cathode	Electrically and thermally coupled to cathode; requires insulated mounting hardware when isolation from heatsink is needed

Key Features

Feature	Design Value
Soft switching recovery	Reverse recovery softness factor S = 5.4–6.6 ensures controlled tail current decay, reducing voltage spikes and EMI generation
Low Q_rr	950–1600 nC across temperature minimizes turn-off energy loss and snubber sizing in high-frequency converters
Pb-free & halogen-free	RoHS-compliant lead plating and IEC61249-2-21 compliant materials support environmental compliance without derating
JEDEC-qualified	Qualified for industrial and telecom power applications per JEDEC standards, ensuring reliability under thermal cycling and humidity

Applications

Industrial SMPS

Server & Telecom PFC

Use Scenario: 3 kW active front-end rectifier in 48 V telecom system with interleaved boost topology.

IC Role / Device Role / Timing Role: Ultrafast output rectifier handling 9 A average current at 100–200 kHz switching frequency.

Use Value: Low Q_rr and soft recovery cut MOSFET turn-on loss by >25% versus standard FRD, improving full-load efficiency by 0.8%.

Use Scenario: Input stage of 80 PLUS Titanium server PSU with continuous 1200 V DC-link hold-up.

IC Role / Device Role / Timing Role: Fast-recovery boost diode in critical conduction mode (CrCM) PFC stage operating up to 300 kHz.

Use Value: 140 ns t_rr and 5.4 S-factor enable stable CrCM operation without external snubbers, reducing BOM count.

Solar Inverter Boost Stage

EV Charger Front-End

Use Scenario: DC-DC boost converter in string-level solar inverter with 1000 V PV input and 700 V bus.

IC Role / Device Role / Timing Role: High-voltage freewheeling diode in two-level boost cell, conducting 9 A RMS at 50–150 kHz.

Use Value: 1200 V V_RRM and 150 °C T_jmax allow operation at elevated ambient temperatures without derating in outdoor enclosures.

Use Scenario: AC/DC front-end rectifier in 11 kW on-board EV charger using Vienna rectifier topology.

IC Role / Device Role / Timing Role: Bidirectional switching diode in three-level leg, handling repetitive 1200 V reverse bias and 9 A forward surge.

Use Value: Low forward voltage (1.65 V) reduces conduction loss by 1.2 W per device vs. competing 1200 V FRDs, lowering thermal design burden.

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultrafast rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH12-12W	V_RRM = 1200 V, t_rr = 150 ns, Q_rr = 1100 nC, R_thJC = 2.0 K/W	Higher Q_rr and slightly slower recovery increase turn-off loss in >200 kHz designs	Preferred where cost sensitivity outweighs 5% efficiency gain at high frequency
IXYS MUR10120CT	Dual-diode TO-220AB package, V_RRM = 1200 V, t_rr = 130 ns, Q_rr = 850 nC, but higher V_F = 1.85 V	Lower Q_rr but higher conduction loss limits use in high-duty-cycle PFC stages	Applicable in lower-current (<7 A avg) or lower-temperature environments where softness is secondary

Compared with STTH12-12W and MUR10120CT, IDP09E120 delivers superior softness (S ≥ 5.4) and lowest V_F among 1200 V 9 A FRDs - making it optimal for high-efficiency, high-frequency PFC and industrial SMPS where EMI and thermal management are critical.

Availability

IDP09E120 is available at Aetrix Electronics and suitable for industrial SMPS, telecom PFC modules, solar inverter boost stages, and EV charger front-ends requiring stable component supply and long-term lifecycle assurance.

Supply support for IDP09E120 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.

IDP09E120 belongs to Infineon's "Ultrafast Recovery Diode" product line, engineered specifically for high-efficiency, high-frequency power conversion in industrial, telecom, and renewable energy systems.

FAQ

Is IDP09E120 suitable for synchronous rectification?

No. IDP09E120 is a unidirectional, non-controlled PN-junction diode with no gate control. It cannot be used as a synchronous rectifier, which requires actively switched MOSFETs. Its role is strictly as a high-voltage, fast-recovery freewheeling or output rectifier in hard-switched topologies.

What is the maximum allowable case temperature for continuous operation?

The maximum continuous case temperature is 90 °C, at which the device supports 14.4 A forward current while maintaining T_j ≤ 150 °C. Exceeding 90 °C case temperature requires derating per the IF = f(T_C) curve on page 4 of the datasheet.

Does the metal tab require electrical isolation from the heatsink?

Yes. The tab is internally connected to Pin 1 (cathode). If the heatsink is grounded or at a different potential, electrically insulating mounting hardware (e.g., mica washer + shoulder washer) must be used to prevent short circuits and ensure safe operation.

How does reverse recovery softness affect EMI in a PFC circuit?

A higher softness factor (S ≥ 5.4) indicates slower, more linear tail current decay during turn-off - reducing di/dt-induced voltage spikes and high-frequency ringing. This directly lowers conducted and radiated EMI, easing compliance with EN55022 Class B limits without additional filtering components.

IDP09E120 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: TO-220-2

Packaging:: Tube

Product Status:: Obsolete

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-TO220-2-2

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

IDP09E120 FAQ

1.How can I place an order for IDP09E120 through Aetrix?

Please submit a Request for Quotation (RFQ) for IDP09E120 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 IDP09E120 reliable?

The price and inventory of IDP09E120 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDP09E120 is usually 5 days.

3.What payment methods are accepted for IDP09E120?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDP09E120 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IDP09E120?

IDP09E120 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IDP09E120 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 IDP09E120?

For technical support, including IDP09E120 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDP09E120 requirements.

6.How does Aetrix verify that IDP09E120 is sourced from the original manufacturer or authorized distributors?

All IDP09E120 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 IDP09E120 meets industry standards.

7.What is the process for return or replacement of IDP09E120?

All IDP09E120 units undergo pre-shipment inspection (PSI). If there is an issue with IDP09E120, 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 IDP09E120 part is unused and in its original packaging.

Return procedure for IDP09E120:

1.Submit a request within 90 days.

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

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