QS5K2TR
Dual MOSFET, N Channel, 30 V, 2 A, 0.154 ohm
- Manufacturer: ROHM
- Product type: Dual MOSFETs
- SVHC: No SVHC (25-Jun-2025)
- No. of Pins: 5Pins
- Channel Type: N Channel
- Product Range: -
- Qualification: -
- Transistor Case Style: TSMT
- Operating Temperature Max: 150°C
- Power Dissipation N Channel: 1.25W
- Power Dissipation P Channel: -
- Drain Source Voltage Vds N Channel: 30V
- Drain Source Voltage Vds P Channel: -
- Continuous Drain Current Id N Channel: 2A
- Continuous Drain Current Id P Channel: -
- Drain Source On State Resistance N Channel: 0.154ohm
- Drain Source On State Resistance P Channel: -
| Delivery and price | |
|---|---|
| Units per pack | 9000 |
| Price | 0.161 € |
| Current stock | 10+ |
| Lead time | 30 days |
QS5K2 Transistors ## 2.5V Drive Nch+Nch MOSFET ## **QS5K2** ## � **Structure** Silicon N-channel MOSFET ## � **Features** - 1) Low On-resistance. - 3) Space saving, small surface mount package (TSMT5). � **Applications** Switching - **Dimensions** (Unit : mm) **==> picture [185 x 129] intentionally omitted <==** **----- Start of picture text -----**<br> TSMT5<br>1.0MAX<br>2.9<br>1.9 0.85<br>0.95 0.95 0.7<br>(5) (4)<br>0~0.1<br>(1) (2) (3)<br>0.4 0.16<br>Each lead has same dimensions<br>Abbreviated symbol : K02<br>1.6 2.8<br>0.60.3~<br>**----- End of picture text -----**<br> - **Packaging specifications** � **Inner circuit** |Type|Package|Taping| |---|---|---| ||Code|TR| ||Basic ordering unit (pieces)|3000| |QS5K2||| **==> picture [150 x 125] intentionally omitted <==** **----- Start of picture text -----**<br> (5) (4)<br>∗ 2 ∗ 2<br>∗ 1 ∗ 1 (1) Tr1 Gate<br>(2) Tr1 Source<br>Tr2 Source<br>(1) (2) (3)<br>(3) Tr2 Gate<br>∗ 1 ESD PROTECTION DIODE (4) Tr2 Drain<br>∗ 2 BODY DIODE (5) Tr1 Drain<br>**----- End of picture text -----**<br> ## � **Absolute maximum ratings** (Ta=25°C) <It is the same ratings for the Tr1 and Tr2> |Parameter||Symbol|Limits|Unit| |---|---|---|---|---| |Drain-source voltage||VDSS|30|V| |Gate-source voltage||VGSS|12|V| |Drain current|Continuous|ID|±2.0|A| ||Pulsed|∗1<br>IDP|±8.0|A| |Source current<br>(Body diode)|Continuous|IS|0.8|A| ||Pulsed|∗1<br>ISP|3.2|A| |Total power dissipation||∗2<br>PD|1.25|W / TOTAL| ||||0.9|W / ELEMENT| |Channel temperature||Tch|150|°C| |Range of storage temperature||Tstg|−55 to+150|°C| - ∗ 1 Pw ≤ 10 µ s, Duty cycle ≤ 1% ∗ 2 Mounted on a ceramic board ## � **Thermal resistance** |�**Thermal resistance**|||| |---|---|---|---| |Parameter|Symbol|Limits|Unit| |Channel to ambient|Rth(ch-a)<br>∗|100|°C/W| |||139|°C/W| - ∗ Mounted on a ceramic board Rev.A 1/3 QS5K2 Transistors ## � **Electrical characteristics** (Ta=25°C) <It is the same characteristics for the Tr1 and Tr2> |Parameter|Symbol|Symbol|Symbol|Min.|Typ.|Max.|Unit|Conditions| |---|---|---|---|---|---|---|---|---| |Gate-source leakage|IGSS|||−|−|10|µA|VGS=12V, VDS=0V| |Drain-source breakdown voltage|V(BR) DSS|||30|−|−|V|ID= 1mA, VGS=0V| |Zero gate voltage drain current|IDSS|||−|−|1|µA|VDS= 30V, VGS=0V| |Gate threshold voltage|VGS (th)|||0.5|−|1.5|V|VDS= 10V, ID= 1mA| |Static drain-source on-state<br>resistance|RDS (on)<br>∗|||−|71|100|mΩ|ID= 2A, VGS= 4.5V| |||||−|76|107|mΩ|ID= 2A, VGS= 4.0V| |||||−|110|154|mΩ|ID= 2A, VGS= 2.5V| |Forward transfer admittance||Yfs|∗|1.5|−|−|S|VDS= 10V, ID= 2A| |Input capacitance|Ciss|||−|175|−|pF|VDS= 10V<br>VGS=0V<br>f=1MHz| |Output capacitance|Coss|||−|50|−|pF|| |Reverse transfer capacitance|Crss|||−|25|−|pF|| |Turn-on delay time|td (on)<br>∗|||−|8|−|ns|VDD15V<br>ID= 1A<br>VGS= 4.5V<br>RL= 15Ω<br>RG=10Ω| |Rise time|tr<br>∗|||−|10|−|ns|| |Turn-off delay time|td (off)<br>∗|||−|21|−|ns|| |Fall time|tf<br>∗|||−|8|−|ns|| |Total gate charge|Qg<br>∗|||−|2.8|3.9|nC|VDD 15V<br>VGS= 4.5V<br>ID= 2A| |Gate-sourcecharge|Qgs<br>∗|||−|0.6|−|nC|| |Gate-draincharge|Qgd<br>∗|||−|0.8|−|nC|| - ∗ Pulsed ## � **Body diode characteristics** (Source-drain) (Ta=25°C) <It is the same characteristics for the Tr1 and Tr2> |Parameter|Symbol|Min.|Typ.|Max.|Unit|Conditions| |---|---|---|---|---|---|---| |Forward voltage|VSD<br>∗|−|−|1.2|V|IS= 3.2A, VGS=0V| |∗Pulsed||||||| Rev.A 2/3 QS5K2 ## Transistors ## � **Electrical characteristics curves** **==> picture [441 x 550] intentionally omitted <==** **----- Start of picture text -----**<br> 1000 Ta=25 ° C 1000 Ta=25 ° C 6 Ta=25 ° C<br>f=1MHz VDD=15V VDD=15V<br>VGS=0V RPulsedVGSG=10=4.5V Ω 5 IRDG=2A=10 Ω<br>tf Pulsed<br>100 4<br>Ciss<br>100 td(off) 3<br>10 td(on) 2<br>Coss<br>tr<br>1<br>Crss<br>10 1 0<br>0.01 0.1 1 10 100 0.01 0.1 1 10 0 1 2 3<br>DRAIN-SOURCE VOLTAGE : VDS (V) DRAIN CURRENT : ID (A) TOTAL GATE CHARGE : Qg (nC)<br>Fig.1 Typical Capacitance Fig.2 Switching Characteristics Fig.3 Dynamic Input Characteristics<br> vs. Drain-Source Voltage<br>10 VDS=10V 300 Ta=25 ° C 10 VGS=0V<br>Pulsed Pulsed Pulsed<br>Ta=125 ° C<br>1 Ta=125 ° C ID=2A 75 ° C<br>75 ° C 200 1 25 ° C<br>25 ° C − 25 ° C<br>− 25 ° C<br>0.1 ID=1A<br>100 0.1<br>0.01<br>0.001 0 0.01<br>0.0 0.5 1.0 1.5 2.0 2.5 0 1 2 3 4 5 6 7 8 9 10 0.0 0.5 1.0 1.5<br>GATE-SOURCE VOLTAGE : VGS (V) GATE-SOURCE VOLTAGE : VGS (V) SOURCE-DRAIN VOLTAGE : VSD (V)<br>Fig.4 Typical Transfer Characteristics Fig.5 Static Drain-Source Fig.6 Source Current vs.<br> On-State Resistance vs. Source-Drain Voltage<br> Gate source Voltage<br>1000 1000 1000<br>VGS=4.5V VGS=4.0V VGS=2.5V<br>Pulsed Pulsed Pulsed<br>Ta=125 ° C Ta=125 ° C Ta=125 ° C<br>75 ° C 75 ° C 7525 °° CC<br>25 ° C 25 ° C − 25 ° C<br>− 25 ° C − 25 ° C<br>100 100 100<br>10 10 10<br>0.1 1 10 0.1 1 10 0.1 1 10<br>DRAIN CURRENT : ID (A) DRAIN CURRENT : ID (A) DRAIN CURRENT : ID (A)<br>Fig.7 Static Drain-Source Fig.8 Static Drain-Source Fig.9 Static Drain-Source<br> On-State Resistance On-State Resistance On-State Resistance<br> vs. Drain Current ( Ι ) vs. Drain Current ( ΙΙ ) vs. Drain Current ( ΙΙΙ )<br> (V)<br>GS<br>CAPACITANCE : C (pF) SWITCHING TIME : t (ns) GATE-SOURCE VOLTAGE : V<br>) Ω<br> (m<br>DRAIN CURRENT : I (A)D DS SOURCE CURRENT : I (A)S<br>STATIC DRAIN-SOURCE ON-STATE RESISTANCE : R<br>) Ω ) Ω ) Ω<br> (m (m (m<br>DS (on) DS (on) DS (on)<br>STATIC DRAIN-SOURCE ON-STATE RESISTANCE : R STATIC DRAIN-SOURCE ON-STATE RESISTANCE : R STATIC DRAIN-SOURCE ON-STATE RESISTANCE : R<br>**----- End of picture text -----**<br> Rev.A 3/3 Appendix ## Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. ## About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix1-Rev1.1
Updated at June 9, 2026
Founded with a steadfast commitment to a "Quality First" corporate policy, ROHM is a globally recognized leader in the design and manufacture of semiconductors and electronic components. Originally named for its foundational product, resistors, combined with the unit of resistance, the "R" in ROHM has evolved to represent the brand's enduring dedication to reliability. Today, the company is renowned for driving technological advancement and supplying high-performance, dependable solutions to engineers worldwide. The company's engineering excellence is most prominently showcased in its expansive portfolio of discrete semiconductors. ROHM provides an industry-leading selection of bipolar transistors, alongside a massive array of Zener single diodes, Schottky diodes, and small signal diodes. Engineered for rigorous efficiency and compact footprint requirements, these foundational components are critical for modern power management, precise signal processing, and high-speed switching applications. In addition to its core discrete offerings, ROHM delivers advanced power control and circuit protection solutions. This includes a highly trusted lineup of single and dual MOSFETs, single IGBTs, and transient voltage suppressors (TVS diodes) designed to safeguard sensitive circuitry. Complemented by intelligent power modules, precision sensors, and specialized ICs, ROHM equips designers with the premium components necessary to build the next generation of robust electronic infrastructure.
About Novapart
Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 410,000+ components from 500+ manufacturers.
Learn more →Stock Shortage Specialist
When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
Request a quote →Compliant Alternatives
We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →