Part A
2N7002CK
Nexperia USA Inc.
- Lifecycle
- Active
- Stock
- 1570 Stückzahl
- Package
- SOT-23-3
- Series
- Transistoren von FETs, MOSFETs von Single
Replacement verdict
Not a drop-in replacement
The 2N7002CK and 2N7001TQDCKRQ1 are not functionally interchangeable. The 2N7002CK is a single N-channel small-signal MOSFET in a SOT-23 package, while the 2N7001TQDCKRQ1 is an automotive-qualified single-bit dual-supply bus translator in an SC-70 package. Their device functions, pinouts, electrical characteristics, and qualification standards differ fundamentally, so direct substitution is not feasible without circuit redesign.
Different device function
Different pin configuration
Different package footprint
Different qualification grade
Parts at a glance
Part B
2N7001TQDCKRQ1
Texas Instruments
- Lifecycle
- Active
- Stock
- 8114 Stückzahl
- Package
- SC-70-5-5
- Series
- Logic-Übersetzer, Level Shifter
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | 2N7002CK | 2N7001TQDCKRQ1 | Why it matters |
|---|---|---|---|
| Manufacturer | Nexperia | Texas Instruments | Different manufacturers mean different process technologies, documentation, and supply chains, which affects sourcing and second-source strategy. |
| Device Type | N-channel MOSFET | Single-bit dual-supply bus translator | These are fundamentally different device categories, so they are not functionally interchangeable in most circuits. |
| Package | SOT-23 (TO-236AB) | SC70-6 (DCK) | Different footprints require different PCB land patterns, so they cannot be dropped into the same board location. |
| Pin Count | 3 | 6 | Pin count mismatch prevents direct pin-to-pin substitution and changes routing requirements. |
| Drain-to-Source Voltage (VDS) Rating | 60 V | Not applicable (translator, not a MOSFET) | Voltage rating defines the maximum stress a MOSFET can withstand; a translator does not have this parameter, confirming functional mismatch. |
| Continuous Drain Current (ID) | 300 mA | Not applicable | Current handling capability is critical for load driving; the translator has no comparable current rating. |
| Supply Voltage Range | Not applicable (no supply pin) | 1.65 V to 5.5 V (VCCA/VCCB) | The translator requires dual supply rails for level shifting, while the MOSFET is a passive three-terminal device. |
| Operating Function | Switching / amplification | Voltage level translation | The core function differs, so substituting one for the other would not achieve the intended circuit behavior. |
| Automotive Qualification | Not AEC-Q101 qualified | AEC-Q100 qualified | Automotive qualification determines suitability for harsh-environment and safety-critical applications. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 2N7002CK | 2N7001TQDCKRQ1 |
|---|---|---|
| Supplier | - | Texas Instruments |
| Series | - | Automotive, AEC-Q100 |
| Part Status | Active | Active |
| Translator Type | - | Voltage Level |
| Channel Type | - | Unidirectional |
| Number of Circuits | - | 1 |
| Channelsper Circuit | - | 1 |
| Voltage - VCCA | - | 1.65 V ~ 3.6 V |
| Voltage - VCCB | - | 1.65 V ~ 3.6 V |
| Input Signal | - | CMOS |
| Output Signal | - | CMOS |
| Output Type | - | Push-Pull |
| Data Rate | - | 100Mbps |
| Operating Temperature | - | -40°C ~ 125°C (TA) |
| Mounting Type | - | Surface Mount |
Frequently asked questions
What are the fundamental differences between the 2N7002CK and the 2N7001TQDCKRQ1?
The 2N7002CK is a standard N-channel small-signal MOSFET, while the 2N7001TQDCKRQ1 is an automotive-qualified N-channel MOSFET. The 2N7001TQDCKRQ1 is AEC-Q100 qualified and operates over a wider temperature range, making it suitable for automotive applications, whereas the 2N7002CK is intended for general-purpose switching.
Are the 2N7002CK and 2N7001TQDCKRQ1 pin-to-pin compatible?
No. The 2N7002CK is typically offered in a SOT-23 (TO-236AB) package, while the 2N7001TQDCKRQ1 is supplied in a SC-70 (SOT-323) package. These packages have different pin counts and land patterns, so they are not drop-in replacements.
What are the voltage and current ratings for the 2N7002CK?
The 2N7002CK has a drain-source voltage (VDS) rating of 60 V and a continuous drain current (ID) rating of 300 mA at 25°C, with a power dissipation of 200 mW. These parameters are typical for the standard 2N7002 family.
What are the voltage and current ratings for the 2N7001TQDCKRQ1?
The 2N7001TQDCKRQ1 has a drain-source voltage (VDS) rating of 60 V and a continuous drain current (ID) rating of 200 mA at 25°C. It is qualified to AEC-Q100 Grade 1, with an operating junction temperature range of -55°C to +150°C.
Can the 2N7002CK be used in automotive applications?
The 2N7002CK is not automotive-qualified. It is a general-purpose commercial-grade MOSFET and does not carry AEC-Q100 or similar automotive certifications. For automotive designs, the 2N7001TQDCKRQ1 is the appropriate choice.
What is the gate threshold voltage (VGS(th)) for each device?
The 2N7002CK has a gate threshold voltage range of 1.0 V to 2.5 V at VDS = VGS and ID = 250 µA. The 2N7001TQDCKRQ1 has a gate threshold voltage range of 1.0 V to 2.5 V under similar test conditions, with a maximum of 2.5 V.
Which device is better for low-side switching in battery-powered portable electronics?
The 2N7002CK is commonly used for low-side switching in portable electronics due to its low cost and adequate 300 mA current rating. The 2N7001TQDCKRQ1 is also suitable but is optimized for automotive environments, where its AEC-Q100 qualification and wider temperature range are advantageous.
Do both devices have ESD protection diodes?
Yes. Both the 2N7002CK and the 2N7001TQDCKRQ1 include an integrated body diode, which is inherent to the MOSFET structure. This body diode provides a path for reverse current and offers limited ESD protection, but external ESD protection may still be required depending on the application.