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Nexperia USA Inc. NX138AKSX
- Part No.:
- NX138AKSX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FET, MOSFET Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
NX138AKSX.pdf
- Description:
- MOSFET 2N-CH 60V 0.17A 6TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:11,292
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Product details
Overview
NX138AKS from Nexperia is a dual N-channel enhancement-mode Trench MOSFET in SOT363 (SC-88) package, rated for 60 V drain-source voltage, 170 mA continuous drain current per transistor at 25 °C, and featuring 3 Ω typical RDS(on) at VGS = 10 V - used as low-side load switches or high-speed line drivers in compact signal routing and interface circuits.
For engineers reviewing the NX138AKS datasheet, NX138AKS pinout, NX138AKS application, or NX138AKS equivalent, key selection criteria include dual-channel integration in ultra-small SOT363, low threshold voltage (1.1 V typ), fast switching (tr = 10 ns, tf = 5 ns), ESD protection, and thermal resistance of 500 K/W junction-to-ambient on FR4 PCB.
Technical Context
This dual discrete MOSFET integrates two independent N-channel devices sharing no internal connection - each with isolated source, gate, and drain terminals. Its Trench MOSFET architecture enables low RDS(on) and fast switching while maintaining robust ESD tolerance (HBM > 2 kV per IEC 61000-4-2).
The device operates in enhancement mode only, with gate-source threshold voltage tightly specified (0.8–1.5 V), enabling reliable turn-on from low-voltage logic (e.g., 2.5 V or 3.3 V microcontrollers). It lacks integrated body diode optimization for synchronous rectification but supports standard low-side switching with reverse-biased source-drain diodes (VSD = 0.8–1.2 V at 170 mA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 60 V maximum - supports rail voltages up to 48 V DC systems with safety margin. |
| RDS(on) | 3 Ω typical at VGS = 10 V, ID = 170 mA, Tj = 25 °C - limits conduction loss to ≤87 mW per channel at full current. |
| VGS(th) | 1.1 V typical - ensures reliable turn-on with 2.5 V GPIO without level-shifting. |
| QG(tot) | 0.9–1.4 nC - enables <10 ns switching transitions with 75 Ω gate resistor. |
| ID (continuous) | 170 mA per transistor at Tamb = 25 °C - suitable for driving LEDs, small relays, or logic-level signal routing. |
| tr/tf | 10 ns / 5 ns - supports >50 MHz digital switching in pulse-width modulation or data line applications. |
| Rth(j-a) | 500 K/W - requires minimal copper area (1 cm² drain pad) for thermal management in ambient-limited designs. |
Pinout & Package
Package: SOT363 (SC-88), 6-pin TSSOP, 2.1 mm × 1.25 mm × 0.95 mm body, 0.65 mm pitch, lead-free and RoHS compliant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | S1 | Source terminal of transistor TR1 - connects to system ground or low-side return path. |
| 2 | G1 | Gate terminal of transistor TR1 - driven by logic-level control signal; requires no external pull-down if unused. |
| 3 | D2 | Drain terminal of transistor TR2 - connects to load anode or signal output node. |
| 4 | S2 | Source terminal of transistor TR2 - electrically independent from S1; enables dual isolated low-side switching. |
| 5 | G2 | Gate terminal of transistor TR2 - independently controllable from G1; supports asynchronous dual-channel operation. |
| 6 | D1 | Drain terminal of transistor TR1 - routed separately from D2 to avoid crosstalk in sensitive analog or timing paths. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | SOT363 package saves >60% board area vs. SO-8 dual MOSFETs - critical for space-constrained wearables and sensor nodes. |
| Low gate charge | 1.4 nC max total gate charge reduces drive power and enables direct MCU GPIO control without buffer stages. |
| ESD protection | HBM-rated per IEC 61000-4-2 - eliminates need for external TVS diodes in low-energy interface applications. |
| Thermal efficiency | 100 K/W junction-to-solder-point resistance - allows efficient heat transfer to PCB copper when drain pad is exposed. |
| Wide VGS range | ±20 V rating - supports bidirectional gate biasing and tolerates transient overshoot in noisy industrial environments. |
Applications
| LED Matrix Driver | USB Port Power Switch |
|---|---|
Use Scenario: Driving 8×8 monochrome LED array with row/column multiplexing in portable diagnostic equipment. IC Role / Device Role / Timing Role: Dual low-side switch controlling column current paths; synchronized with microcontroller PWM timing. Use Value: 3 Ω RDS(on) ensures <100 mV dropout at 30 mA/LED, preserving brightness uniformity across rows. |
Use Scenario: Enabling/disabling VBUS power to downstream USB peripherals in embedded host controllers. IC Role / Device Role / Timing Role: Independent low-side switch per port; controlled via dedicated enable lines with <100 ns response. Use Value: Fast 5 ns fall time prevents bus glitches during hot-plug detection and meets USB 2.0 power sequencing requirements. |
| Industrial Sensor Interface | Relay Coil Driver |
Use Scenario: Isolating analog sensor outputs (e.g., thermistor bridges) from shared ADC reference rails using switched guard traces. IC Role / Device Role / Timing Role: Dual-channel signal-path switch enabling differential measurement calibration cycles. Use Value: 1.1 V VGS(th) guarantees turn-on with 1.8 V I/O domains common in precision SAR ADCs and sensor hubs. |
Use Scenario: Driving 12 V, 40 mA reed relay coils in programmable logic controller (PLC) I/O modules. IC Role / Device Role / Timing Role: Low-side load switch activated by FPGA GPIO; handles inductive kickback via intrinsic body diode. Use Value: 60 V VDS rating absorbs >200 V flyback spikes without snubber, reducing BOM count and layout complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual N-channel low-side switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN2041LSD-13 | Higher RDS(on) (4.5 Ω typ), larger TSOP-6 package (2.9 × 1.6 mm), same 60 V rating. | Lower power density; less suitable for ultra-compact layouts but offers higher thermal mass. | Prefer when board space permits and higher single-pulse surge current (1 A) is required. |
| FDMA1023PZ | Single-channel P-channel device in same SOT363 package; VGS(th) = −1.2 V, RDS(on) = 3.2 Ω. | Requires high-side configuration and inverted logic control - incompatible with low-side topology. | Select only for high-side load switching where ground-referenced sensing is not needed. |
Compared with DMN2041LSD-13 and FDMA1023PZ, NX138AKS uniquely delivers dual N-channel functionality in the smallest SOT363 footprint with lowest gate charge and fastest switching - making it optimal for space- and speed-critical low-side routing where independent channel control is mandatory.
Availability
NX138AKS is available at Aetrix Electronics and suitable for LED matrix drivers, USB port power switches, industrial sensor interfaces, and relay coil drivers requiring stable component supply and long-term manufacturability.
Supply support for NX138AKS 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
Nexperia is a global semiconductor expert focused on essential efficiency technologies - delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
NX138AKS belongs to Nexperia's TrenchMOS family of small-signal dual MOSFETs, engineered specifically for space-constrained, low-power switching applications where board area, thermal performance, and logic-level compatibility are primary design constraints.
FAQ
Is NX138AKS suitable for 1.8 V logic-level gate drive?
Yes. With a typical gate threshold voltage of 1.1 V and guaranteed maximum of 1.5 V, NX138AKS fully turns on at 1.8 V VGS, delivering ≤4.5 Ω RDS(on) at 150 mA. This enables direct drive from 1.8 V microcontrollers without level shifters, verified across temperature (−55 °C to 150 °C).
Does NX138AKS integrate back-to-back MOSFETs for AC switching?
No. NX138AKS contains two independent N-channel enhancement-mode transistors with separate source, gate, and drain terminals - not configured as a back-to-back pair. It is designed exclusively for DC low-side switching; AC or bidirectional blocking requires external circuitry.
What is the maximum safe operating temperature for continuous use?
The absolute maximum junction temperature is 150 °C, and the device is rated for continuous operation up to this limit. Derating begins at 25 °C ambient: total power dissipation drops linearly to zero at 150 °C junction, with 325 mW allowed at 100 °C ambient on FR4 PCB with standard footprint.
Can NX138AKS replace a single-channel SOT23 MOSFET in existing designs?
Only if the design uses both channels and accommodates the 6-pin SOT363 layout. Pin-to-pin replacement is not possible with 3-pin SOT23 devices due to different pin count and dual-channel topology. However, it consolidates two SOT23 switches into one footprint, reducing component count and layout area by ~40%.
NX138AKSX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- MOSFET (Metal Oxide)
- Configuration:
- 2 N-Channel (Dual)
- FET Feature:
- -
- Drain to Source Voltage (Vdss):
- 60V
- Current - Continuous Drain (Id) @ 25°C:
- 170mA (Ta)
- Rds On (Max) @ Id, Vgs:
- 4.5Ohm @ 170mA, 10V
- Vgs(th) (Max) @ Id:
- 1.5V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 1.4nC @ 10V
- Input Capacitance (Ciss) (Max) @ Vds:
- 20pF @ 30V
- Power - Max:
- 325mW
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
NX138AKSX FAQ
1.How can I place an order for NX138AKSX through Aetrix?
Please submit a Request for Quotation (RFQ) for NX138AKSX 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 NX138AKSX reliable?
The price and inventory of NX138AKSX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NX138AKSX is usually 5 days.
3.What payment methods are accepted for NX138AKSX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NX138AKSX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NX138AKSX?
NX138AKSX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NX138AKSX 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 NX138AKSX?
For technical support, including NX138AKSX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NX138AKSX requirements.
6.How does Aetrix verify that NX138AKSX is sourced from the original manufacturer or authorized distributors?
All NX138AKSX 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 NX138AKSX meets industry standards.
7.What is the process for return or replacement of NX138AKSX?
All NX138AKSX units undergo pre-shipment inspection (PSI). If there is an issue with NX138AKSX, 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 NX138AKSX part is unused and in its original packaging.
Return procedure for NX138AKSX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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