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LQA30T300
Fast / Ultrafast Diode, Qspeed, 300 V, 30 A, Single, 1.95 V, 13.7 ns, 200 A
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- Manufacturer: POWER INTEGRATIONS
- Product type: Fast & Ultrafast Recovery Rectifier Diodes
- Repetitive Reverse Voltage Vrrm Max:300V; Forward Current If(AV):30A; Diode Configuration:Single; Forward Voltage VF Max:1.95V; Reverse Recovery Time trr Max:13.7ns; Forward Surge
- SVHC: No SVHC (21-Jan-2025)
- No. of Pins: 2 Pin
- Product Range: Qspeed Q Series
- Qualification: -
- Diode Case Style: TO-220AC
- Diode Configuration: Single
- Forward Voltage Max: 1.95V
- Forward Surge Current: 200A
- Reverse Recovery Time: 13.7ns
- Average Forward Current: 30A
- Operating Temperature Max: 150°C
- Repetitive Peak Reverse Voltage: 300V
| Delivery and price | |
|---|---|
| Units per pack | 1000 |
| Price | 0.896 € |
| Current stock | 200+ |
| Lead time | 30 days |
Datasheet
**LQA30T300 Qspeed[™]** Family ## EE POWER ## **300 V, 30 A Q-Series Diode** ## **Product Summary** |IF(AVG)|30|A| |---|---|---| |VRRM|300|V| |QRR(Typat 125 °C)|53|nC| |IRRM (Typat 125 °C)|2.85|A| |Softness tb/ta(Typat 125 °C)|0.6|| ## **General Description** This device has the lowest QRR of any 300V Silicon diode. Its recovery characteristics increase efficiency, reduce EMI and eliminate snubbers. ## **Applications** ## **Pin Assignment** - AC/DC and DC/DC output rectification - Output & freewheeling diodes - Motor control drive circuits - Uninterruptible Power Supply (UPS) inverters ## **Features** - Low QRR, Low IRRM, Low tRR - High dIF/dt capable (1000A/µs) - Soft recovery > A ~~pt~~ C **TO-220AC** ## **Benefits** - Increases efficiency - Eliminates need for snubber circuits ## RoHS Compliant Package uses Lead-free plating and Green mold compound. Halogen free per IEC 61249-2-21. - Reduces EMI filter component size & count - Enables extremely fast switching ## **Absolute Maximum Ratings** Absolute maximum ratings are the values beyond which the device may be damaged or have its useful life impaired. Functional operation under these conditions is not implied. |**Symbol**|**Parameter**|**Conditions**|**Rating**|**Units**| |---|---|---|---|---| |VRRM|Peak repetitive reverse voltage||300|V| |IF(AVG)|Average forward current|TJ= 150 °C,TC= 99 °C|30|A| |IFSM|Non-repetitivepeak surge current|60 Hz,½ cycle|200|A| |IFSM|Non-repetitivepeak surge current|½ cycle of T = 28 us Sinusoid,TC= 25 °C|350|A| |TJ|Maximumjunction temperature||150|°C| |TSTG|Storage temperature||–55 to 150|°C| ||Lead solderingtemperature|Leads at 1.6mm from case,10 sec|300|°C| |PD|Power dissipation|TC= 25 °C|113|W| ## **Thermal Resistance** |**Symbol**|**Resistance from:**|**Conditions**|**Rating**|**Units**| |---|---|---|---|---| |RθJA|Junction to ambient|TO-220|62|°C/W| |RθJC|Junction to case|TO-220|1.1|°C/W| www.powerint.com January 2011 ## **LQA30T300** ## **Electrical Specifications** at TJ= 25 °C (unless otherwise specified) |**Symbol**<br>~~aCe~~|**Parameter**<br>~~Ce~~|**Conditions**<br>|**Conditions**<br>|**Min**<br>|**Typ**<br>|**Max**<br>|**Units**<br>| |---|---|---|---|---|---|---|---| |**DC Characteristics**<br>~~Ce~~|||||||| |IR<br>~~Ce|~~<br>~~ee~~|Reverse current<br>~~Ce|~~<br>~~ee~~|VR= 300 V, TJ= 25 °C<br>~~|~~<br>~~ee~~||-<br>~~|~~<br>~~**e**s~~|-<br>~~|~~<br>~~es~~|250<br>~~|~~|µA<br>~~|~~| |||VR= 300 V,TJ= 125 °C<br>~~|~~<br>~~es~~<br>~~ee~~||-<br>~~|~~<br>~~es~~<br>~~**e**s~~|1.0<br>~~|~~<br>~~es~~<br>~~es~~<br>~~ee~~|-<br>~~|~~<br>~~es~~<br>~~ee~~|mA<br>~~|~~<br>~~es~~<br>~~ee~~| |VF<br>~~ee~~|Forward voltage<br>~~ee~~|IF= 30 A,TJ= 25 °C<br>~~ee~~||-<br>~~**e**s~~|1.66<br>~~es~~<br>~~ee~~|1.95<br>~~ee~~|V<br>~~ee~~| |||IF= 30 A,TJ= 150 °C<br>~~ee~~<br>~~es~~||-<br>~~**e**s~~<br>~~es~~|1.45<br>~~es~~<br>~~ee~~<br>~~es~~|-<br>~~ee~~<br>~~es~~|V<br>~~ee~~<br>~~es~~| |CJ<br>~~ee~~<br>~~GG~~|Junction capacitance<br>~~ee~~<br>~~GG~~|VR= 10 V,1 MHz<br>~~ee~~<br>~~GG~~||-<br>~~**e**s ~~<br>~~GG~~|89<br> ~~es~~<br>~~ee~~<br>~~GG~~|-<br>~~ee~~<br>~~GG~~|pF<br>~~ee~~<br>~~GG~~| |**Dynamic Characteristics**<br>~~Ce~~<br>~~eeeeeeeee~~<br>~~ee~~|||||||| |tRR<br>~~a~~|Reverse recovery time,<br>~~ee~~|dIF/dt = 200A/µs<br>VR=200V, IF=30 A<br>~~ee~~|TJ=25 °C<br>~~ee~~<br>~~ee~~|-<br>~~ee~~<br>~~ee~~<br>~~ee~~|13.7<br>~~ee~~<br>~~eee~~<br>~~ee~~|-<br>~~ee~~<br>~~eeeee~~<br>~~ee~~|ns<br>~~ee~~<br>~~ee~~| ||||TJ=125 °C<br>~~ee~~<br>~~ee~~<br>~~ee~~|-<br>~~ee~~<br>~~ee~~<br>~~ee~~|28.5<br>~~ee~~<br>~~eee~~<br>~~ee~~<br>~~eee~~|-<br>~~ee~~<br>~~eeeee~~<br>~~ee~~<br>~~eee~~|ns<br>~~ee~~<br>~~ee~~<br>~~eee~~| |QRR<br>~~ee~~|Reverse recovery charge,<br>~~ee~~|dIF/dt = 200A/µs<br>VR=200V, IF=30 A<br>~~ee~~|TJ=25 °C<br>~~ee~~<br>~~ee~~<br>~~ee~~|-<br>~~ee ~~<br>~~ee~~<br>~~ee~~<br>~~ee ee~~|13<br> ~~eee~~<br>~~ee~~<br>~~ee~~<br>~~eee~~<br>~~ee~~|19<br>~~eee ee ~~<br>~~ee~~<br>~~ee~~<br>~~eee~~<br>~~eeee~~|nC<br> ~~ee~~<br>~~ee~~<br>~~eee~~<br>~~ee~~| ||||TJ=125 °C<br>~~ee~~<br>~~ee~~|-<br>~~ee~~<br>~~ee ee~~|53<br>~~ee~~<br>~~eee~~<br>~~ee~~|-<br>~~ee~~<br>~~eee~~<br>~~eeee~~|nC<br>~~ee~~<br>~~eee~~<br>~~ee~~| |IRRM<br>~~a~~|Maximum reverse<br>recovery current,<br>~~a~~|dIF/dt =200A/µs<br>VR=200V, IF=30 A<br>~~a~~|TJ=25 °C<br>~~ee~~<br>~~a~~<br>~~ee~~|-<br>~~ee ee~~<br>~~a~~<br>~~ee ee~~|1.5<br>~~eee~~<br>~~ee~~<br>~~a~~<br>~~ee~~|2.2<br>~~eee~~<br>~~eeee~~<br>~~a~~<br>~~eeee~~|A<br>~~eee~~<br>~~ee~~<br>~~a~~<br>~~ee~~| ||||TJ=125 °C<br>~~a~~<br>~~ee~~|-<br>~~a~~<br>~~ee ee~~|2.85<br>~~a~~<br>~~ee~~|-<br>~~a~~<br>~~eeee~~|A<br>~~a~~<br>~~ee~~| |S<br>~~ee~~|Softness =<br>a<br>b<br>t<br>t<br>~~ee~~|dIF/dt =200A/µs<br>VR=200V, IF=30 A<br>~~ee~~|TJ=25 °C<br>~~ee~~<br>~~ee ee~~|-<br>~~ee ee~~<br>~~ee~~|0.6<br>~~ee~~<br>~~ee~~|-<br>~~eeee~~<br>~~ee~~|~~ee~~<br>~~ee~~| ||||TJ=125 °C<br>~~ee ee~~|-<br>~~ee~~|0.6<br>~~ee~~|-<br>~~ee~~|~~ee~~| **==> picture [451 x 137] intentionally omitted <==** **----- Start of picture text -----**<br> VR<br>D1<br>L1 DUT<br>IF <q—_ tRR 15V<br>dIF/dt Pulse generator + Rg<br>ta tb > Q1<br>0 SLTL<br>0.1xIRRM<br>IRRM<br>**----- End of picture text -----**<br> **Figure 1. Reverse Recovery Definitions** **Figure 2. Reverse Recovery Test Circuit** 2 ~~|~~ www.powerint.com **LQA30T300** ## **Electrical Specifications at TJ= 25** ° **C (unless otherwise specified)** **==> picture [463 x 576] intentionally omitted <==** **----- Start of picture text -----**<br> 60 1.0<br>55 0.9<br>50 0.8 Tj=125C<br>45<br>0.7<br>40 Tj=125C<br>35 0.6<br>30 0.5<br>25 0.4 Tj=25C<br>20 Tj=25C<br>0.3<br>15<br>0.2<br>10<br>5 0.1<br>0 0.0<br>0.0 0.5 1.0 1.5 2.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0<br>VF (V) VF (V)<br>Figure 3. Typical IF vs VF Figure 4. Typical IF vs VF<br>350 60<br>300 50<br>250<br>40<br>200<br>30<br>150<br>20<br>100<br>10<br>50<br>0 0<br>0 20 40 60 80 100 120 140 160 180 25 50 75 100 125 150<br>VR (V) Case Temperature, TC (oC)<br>Figure 5. Typical Cj vs VR Figure 6. DC Current Derating Curve<br>120 35<br>100 dI F /dt=500A/us<br>30 dIF/dt=200A/us<br>80<br>25<br>60<br>40 dIF/dt=200A/us 20 dIF/dt=500A/us<br>15<br>20<br>0 10<br>0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32<br>IF (A) IF (A)<br>Ele<br>Figure 7. Typical QRR vs IF at Tj=125 °C Figure 8. Typical tRR vs IF at Tj=125 °C<br>3<br>(A) (A)<br>IF IF<br>C(pF)j (A)IF(AV)<br> (nC) (ns)<br>QRR tRR<br>**----- End of picture text -----**<br> Rev 1.2 01/11 www.powerint.com ## **LQA30T300** **==> picture [456 x 132] intentionally omitted <==** **----- Start of picture text -----**<br> duty cycle=10%<br>120 60<br>55 duty cycle=30%<br>100 50 d uty cycle=50%<br>45 DC<br>80 40<br>35<br>60 30<br>25<br>40<br>20<br>20 15<br>10<br>0 5<br>25 50 75 100 125 150 0<br>o 25 50 75 100 125 150<br>Case Temperature, TC ( C) T C(°C)<br>P (W) (PEAK) (A)<br>IF<br>**----- End of picture text -----**<br> **Figure 9. Power Derating Curve** **Figure 10. IF(Peak) vs TC, f=70 kHz** **==> picture [442 x 302] intentionally omitted <==** **----- Start of picture text -----**<br> LQA30T300<br>1<br>D= 0.5<br>D = 0.3<br>D= 0.1<br>0.1<br>D= 0.05<br>D= 0.02<br>D= 0.01<br>0.01 D=0.005<br>—“<br>D=0.002 ti<br>ty<br>Single Pulse Notes:<br>1. Duty factor D =t;/t2<br>2. Peak Ty=P DM X Zthc + Te<br>0.001<br>1.E-06 1.E-05 1.E-04 1.E-03 1.E-02 1.E-01 1.E+00<br>t1(sec)<br>Zth(j-c)/Rth(j-c)<br>**----- End of picture text -----**<br> **Figure 11. Normalized Maximum Transient Thermal Impedance** ## EZ POWER 4 | www.powerint.com Rev 1.2 01/11 **LQA30T300** ## **Dimensional Outline Drawings** **==> picture [145 x 264] intentionally omitted <==** **----- Start of picture text -----**<br> Millimeters<br>ee ee<br>Dim MIN MAX<br>eeee ee<br>A 4.32 4.70<br>A1 1.14 1.40<br>eeee ee<br>A2 2.03 2.79<br>eeee ee<br>C 0.34 0.610<br>ee ee ee<br>D 9.65 10.67<br>E 2.49 2.59<br>ee ee ee<br>E1 4.98 5.18<br>ee ee ee<br>F 0.508 1.016<br>ee ee ee<br>F1 1.14 1.78<br>ee ee ee<br>H 14.71 16.51<br>ee ee ee<br>H1 5.84 6.55<br>H2 8.51 9.25<br>eeee ee<br>H3 3.53 3.96<br>ee ee ee<br>H4 2.54 3.05<br>ee ee ee<br>L 12.70 14.22<br>eeee ee<br>L1 - 6.35<br>ee ee ee<br>**----- End of picture text -----**<br> **Mechanical Mounting Maximum Torque / Pressure specification Method** Screw through hole in package tab 1 Newton Meter (nm) or 8.8 inch-pounds (lb-in) Clamp against package body 12.3 kilogram-force per square centimeter (kgf/cm[2] ) or 175 lbf/in[2] **Soldering time and temperature:** This product has been designed for use with hightemperature, lead-free solder. The component leads can be subjected to a maximum temperature of 300 °C, for up to 10 seconds. See Application Note AN-303, for more details. ## **Ordering Information** |**Part Number**|**Package **|**Packing**| |---|---|---| |LQA30T300|TO-220AC|50 units/tube| ## **The information contained in this document is subject to change without notice.** ## 5 ~~|~~ Rev 1.2 01/11 www.powerint.com **LQA30T300** |**Revision**|**Notes**|**Date**| |---|---|---| |1.1|Released by Qspeed|05/09| |1.2|Converted to Power Integrations Document|01/11| 6 ~~|~~ www.powerint.com Rev 1.2 01/11 **LQA30T300** ## **For the latest updates, visit our website: www.powerint.com** Power Integrations reserves the right to make changes to its products at any time to improve reliability or manufacturability. Power Integrations does not assume any liability arising from the use of any device or circuit described herein. POWER INTEGRATIONS MAKES NO WARRANTY HEREIN AND SPECIFICALLY DISCLAIMS ALL WARRANTIES INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF THIRD PARTY RIGHTS. ## **PATENT INFORMATION** The products and applications illustrated herein (including transformer construction and circuits external to the products) may be covered by one or more U.S. and foreign patents, or potentially by pending U.S. and foreign patent applications assigned to Power Integrations. A complete list of Power Integrations’ patents may be found at www.powerint.com. Power Integrations grants its customers a license under certain patent rights as set forth at http://www.powerint.com/ip.htm. The PI Logo, TOPSwitch, TinySwitch, LinkSwitch, DPA-Switch, PeakSwitch, CAPZero, SENZero, LinkZero, HiperPFS, HiperTFS, Qspeed, EcoSmart, Clampless, E-Shield, Filterfuse, StackFET, PI Expert and PI FACTS are trademarks of Power Integrations, Inc. Other trademarks are property of their respective companies. ©Copyright 2011 Power Integrations, Inc. ## **Power Integrations Worldwide Sales Support Locations** ## **WORLD HEADQUARTERS** 5245 Hellyer Avenue San Jose, CA 95138, USA. Main: +1-408-414-9200 Customer Service: Phone: +1-408-414-9665 Fax: +1-408-414-9765 _e-mail: usasales@powerint.com_ ## **GERMANY** Rueckertstrasse 3 D-80336, Munich Germany Phone: +49-89-5527-3911 Fax: +49-89-5527-3920 _e-mail: eurosales@powerint.com_ ## **JAPAN** Kosei Dai-3 Building 2-12-11, Shin-Yokohama, Kohoku-ku, Yokohama-shi, Kanagawa 222-0033 Japan Phone: +81-45-471-1021 Fax: +81-45-471-3717 _e-mail: japansales@powerint.com_ ## **TAIWAN** 5F, No. 318, Nei Hu Rd., Sec. 1 Nei Hu District Taipei 114, Taiwan R.O.C. Phone: +886-2-2659-4570 Fax: +886-2-2659-4550 _e-mail: taiwansales@powerint.com_ ## **CHINA (SHANGHAI)** Rm 1601/1610, Tower 1 Kerry Everbright City No. 218 Tianmu Road West Shanghai, P.R.C. 200070 Phone: +86-021-6354-6323 Fax: +86-021-6354-6325 _e-mail: chinasales@powerint.com_ ## **INDIA** #1, 14th Main Road Vasanthanagar Bangalore-560052 India Phone: +91-80-4113-8020 Fax: +91-80-4113-8023 _e-mail: indiasales@powerint.com_ ## **KOREA** RM 602, 6FL Korea City Air Terminal B/D, 159-6 Samsung-Dong, Kangnam-Gu, Seoul, 135-728 Korea Phone: +82-2-2016-6610 Fax: +82-2-2016-6630 _e-mail: koreasales@powerint.com_ ## **EUROPE HQ** 1st Floor, St. James’s House East Street, Farnham Surrey GU9 7TJ United Kingdom Phone: +44 (0) 1252-730-141 Fax: +44 (0) 1252-727-689 _e-mail: eurosales@powerint.com_ ## **CHINA (SHENZHEN)** Rm A, B & C 4th Floor, Block C, Electronics Science and Technology Building 2070 Shennan Zhong Road Shenzhen, Guangdong, P.R.C. 518031 Phone: +86-755-8379-3243 Fax: +86-755-8379-5828 _e-mail: chinasales@powerint.com_ ## **ITALY** Via De Amicis 2 20091 Bresso MI Italy Phone: +39-028-928-6000 Fax: +39-028-928-6009 _e-mail: eurosales@powerint.com_ ## **SINGAPORE** 51 Newton Road, #19-01/05 Goldhill Plaza Singapore, 308900 Phone: +65-6358-2160 Fax: +65-6358-2015 _e-mail: singaporesales@powerint.com_ ## **APPLICATIONS HOTLINE** World Wide +1-408-414-9660 **APPLICATIONS FAX** World Wide +1-408-414-9760 ## 7 ~~a~~ Rev 1.2 01/11 www.powerint.com E Power 7
Updated at June 4, 2026
Power Integrations is a leading innovator in semiconductor technologies dedicated to high-voltage power conversion. Renowned for advancing the clean-power ecosystem, the company designs highly integrated chips that maximize energy efficiency across a vast range of consumer and industrial applications. Through proprietary advancements like PowiGaN gallium-nitride technology and EcoSmart energy-efficiency solutions, their components deliver exceptional performance while significantly reducing global energy waste. A major focus of their product lineup includes discrete semiconductors, particularly fast and ultrafast recovery rectifier diodes. These essential components provide the high-speed switching and exceptional reliability required for modern power supply designs. By minimizing power loss and thermal output, they ensure efficient power transmission in demanding, high-efficiency circuit environments. Furthermore, Power Integrations is a premier manufacturer of specialized LED lighting components. Their advanced AC/DC LED driver ICs offer engineers streamlined, energy-efficient solutions for solid-state lighting applications. By integrating critical control and protection features into a single footprint, these drivers reduce the overall component count and accelerate the development of reliable, high-performance commercial and consumer lighting systems.
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