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Nexperia USA Inc. NX138BKSF
- Part No.:
- NX138BKSF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FET, MOSFET Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
NX138BKSF.pdf
- Description:
- MOSFET 2N-CH 60V 0.33A 6TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,366
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Product details
Overview
NX138BKSF from Nexperia is a dual N-channel enhancement-mode Trench MOSFET in SOT363 (SC-88) package, rated for 60 V VDS, 210 mA continuous drain current per transistor at 25 °C, and 2.1 Ω typical RDS(on) at VGS = 10 V. It serves as a compact, low-threshold, high-speed switching element in space-constrained low-side loadswitch and relay driver circuits.
For engineers reviewing the NX138BKSF datasheet, NX138BKSF pinout, NX138BKSF application, or NX138BKSF equivalent, this device is selected for dual-channel discrete switching where fast turn-on (8 ns td(on)), ESD robustness (>2 kV HBM), and thermal performance on FR4 PCBs are critical design requirements.
Technical Context
This dual MOSFET integrates two independent N-channel channels in a single 6-pin TSSOP package, sharing no internal connection between transistors - each has isolated source, gate, and drain terminals. Its Trench MOSFET architecture enables low threshold voltage (0.5–1.5 V VGS(th)) and stable RDS(on) over temperature (2.1 Ω typ @ 25 °C, 4.3 Ω max @ 150 °C).
It operates with gate drive voltages from −20 V to +20 V, supports bidirectional blocking up to 60 V, and features integrated source-drain diodes with 0.9–1.2 V forward drop at 200 mA. Dynamic parameters include 0.5–0.7 nC total gate charge and 20 pF input capacitance, enabling efficient switching in sub-100 ns transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 60 V maximum drain-source voltage - defines safe blocking capability in low-voltage DC switching rails. |
| RDS(on) | 2.1 Ω typical at VGS = 10 V, ID = 200 mA, Tj = 25 °C - determines conduction loss and thermal rise under load. |
| VGS(th) | 0.5–1.5 V threshold range - enables reliable turn-on with 1.8–3.3 V logic-level microcontrollers. |
| td(on)/tf | 8 ns turn-on delay / 5 ns fall time - supports >10 MHz switching in digital load control applications. |
| ESD Rating | >2 kV HBM - ensures robustness during PCB handling and assembly without external protection. |
| Ptot | 285 mW at Tamb = 25 °C on FR4 - sets practical power limit for thermally unenhanced layouts. |
| Ciss | 20 pF input capacitance - influences gate drive strength requirement and switching speed stability. |
Pinout & Package
Package: SOT363 (SC-88), also designated TSSOP6 - ultra-compact 6-lead surface-mount plastic package (2.2 mm × 1.8 mm × 1.1 mm), optimized for high-density PCB layouts and reflow soldering.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | S1 | Source terminal of transistor 1 - connects to ground or low-side return path for first channel. |
| 2 | G1 | Gate terminal of transistor 1 - accepts logic-level control signal; requires <1 µA leakage current drive. |
| 3 | D2 | Drain terminal of transistor 2 - connects to switched load or signal line for second channel. |
| 4 | S2 | Source terminal of transistor 2 - electrically isolated from S1; used for independent low-side referencing. |
| 5 | G2 | Gate terminal of transistor 2 - fully independent control input; no shared gate structure with G1. |
| 6 | D1 | Drain terminal of transistor 1 - connects to load or signal path controlled by first channel. |
Key Features
| Feature | Design Value |
|---|---|
| Low VGS(th) | 0.5–1.5 V range enables direct drive from 1.8 V/3.3 V MCUs without level-shifting circuitry. |
| Fast switching | 8 ns td(on) and 5 ns tf support high-frequency PWM control in timing-critical loads. |
| Trench MOSFET process | Delivers lower RDS(on) per die area than planar MOSFETs - critical for miniaturized dual-switch designs. |
| ESD protection | >2 kV HBM rating eliminates need for external ESD diodes in most board-level environments. |
| Thermal resistance | Rth(j-a) = 380 K/W on standard FR4 - allows predictable junction temperature estimation in passive-cooled designs. |
Applications
| Relay Driver | High-Speed Line Driver |
|---|---|
Use Scenario: Replacing electromechanical relays in PLC I/O modules and industrial control panels to reduce size, wear, and acoustic noise. IC Role / Device Role / Timing Role: Dual low-side switch controlling coil current paths for two independent relay coils. Use Value: Enables simultaneous or staggered actuation with <10 ns timing margin and no contact bounce artifacts. |
Use Scenario: Driving terminated 50 Ω transmission lines in test equipment and serial communication interfaces requiring clean edge fidelity. IC Role / Device Role / Timing Role: Active pull-down stage in complementary push-pull output buffers. Use Value: 5 ns fall time ensures sub-100 ps jitter contribution and preserves signal integrity up to 50 MHz. |
| Low-Side Loadswitch | Switching Circuits |
Use Scenario: Power gating for peripheral ICs (e.g., sensors, ADCs) in battery-powered IoT nodes to minimize quiescent current. IC Role / Device Role / Timing Role: Dual-channel enable switch isolating VDD paths with independent control per subsystem. Use Value: 1 µA max IDSS leakage prevents standby current accumulation across multiple channels. |
Use Scenario: Configurable logic-level translation and signal routing in FPGA configuration sequencers and multiplexed sensor hubs. IC Role / Device Role / Timing Role: Bidirectional pass gate or level-shifting switch in non-inverting signal paths. Use Value: 60 V VDS rating accommodates mixed-supply domains (3.3 V, 5 V, 12 V) within one footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual N-channel MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN2004LKQ-7 | 40 V VDS, 0.75 Ω RDS(on), SOT-563 package - higher current density but lower voltage rating. | Better suited for 3.3 V/5 V logic-only systems; unsuitable for 12 V+ load switching. | Select when board space is tighter and voltage stress remains ≤40 V. |
| NTJD4152P | 20 V VDS, 0.25 Ω RDS(on), same SOT-363 footprint - optimized for ultra-low-voltage operation. | Limited to ≤20 V rails; cannot replace NX138BKSF in 24 V or 48 V auxiliary supplies. | Choose only for sub-3.3 V MCU-driven loads where minimal RDS(on) dominates thermal budget. |
Compared with DMN2004LKQ-7 and NTJD4152P, the NX138BKSF uniquely balances 60 V blocking, logic-level gate drive, and dual-channel isolation in SOT363 - making it the only option among the three qualified for 12–48 V industrial loadswitching with 1.8 V MCU compatibility.
Availability
NX138BKSF is available at Aetrix Electronics and suitable for relay driver modules, high-speed line drivers, and low-side loadswitch designs requiring stable component supply across automotive-grade production cycles and industrial embedded programs.
Supply support for NX138BKSF 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 high-volume, high-reliability essential semiconductors - delivering discrete, logic, and MOSFET solutions for industrial, computing, and consumer markets.
The NX138BKSF belongs to Nexperia's TrenchMOS dual-transistor portfolio, engineered specifically for space-constrained, dual-load switching applications demanding low gate threshold, fast switching, and robust ESD immunity without external protection.
FAQ
Is NX138BKSF pin-compatible with NX138BKS?
Yes - NX138BKSF is the tape-and-reel packaging variant of the NX138BKS silicon die in identical SOT363 (SC-88) package. Pin numbering, electrical characteristics, thermal behavior, and marking layout are functionally and physically identical; only packaging format differs per ordering code.
What is the maximum continuous drain current per channel at 100 °C ambient?
Per datasheet Table 4, the maximum continuous drain current per transistor is 135 mA at Tamb = 100 °C with VGS = 10 V, measured on FR4 PCB with single-sided copper and tin-plated mounting pad for drain (1 cm²). Derating follows Fig. 2's normalized curve.
Does NX138BKSF integrate body diodes, and what is their forward voltage?
Yes - each N-channel transistor includes an inherent source-drain body diode. At IS = 200 mA and Tj = 25 °C, VSD is 0.9–1.2 V (typical 1.05 V), as specified in Table 6. These diodes support freewheeling in inductive load switching but are not rated for reverse recovery in high-dI/dt applications.
Can NX138BKSF be used in linear (analog) mode for current regulation?
No - the device is characterized and qualified only for switching operation. Its Safe Operating Area (SOA) diagram (Fig. 3) shows limited DC bias capability beyond 25 °C, and RDS(on) variation vs. VGS (Fig. 9) lacks monotonic linearity required for precision analog use. It is not recommended for linear regulator or current-source topologies.
NX138BKSF 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:
- 330mA (Tc)
- Rds On (Max) @ Id, Vgs:
- 3.5Ohm @ 200mA, 10V
- Vgs(th) (Max) @ Id:
- 1.5V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 0.7nC @ 10V
- Input Capacitance (Ciss) (Max) @ Vds:
- 20pF @ 30V
- Power - Max:
- 860mW
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
NX138BKSF FAQ
1.How can I place an order for NX138BKSF through Aetrix?
Please submit a Request for Quotation (RFQ) for NX138BKSF 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 NX138BKSF reliable?
The price and inventory of NX138BKSF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NX138BKSF is usually 5 days.
3.What payment methods are accepted for NX138BKSF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NX138BKSF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NX138BKSF?
NX138BKSF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NX138BKSF 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 NX138BKSF?
For technical support, including NX138BKSF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NX138BKSF requirements.
6.How does Aetrix verify that NX138BKSF is sourced from the original manufacturer or authorized distributors?
All NX138BKSF 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 NX138BKSF meets industry standards.
7.What is the process for return or replacement of NX138BKSF?
All NX138BKSF units undergo pre-shipment inspection (PSI). If there is an issue with NX138BKSF, 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 NX138BKSF part is unused and in its original packaging.
Return procedure for NX138BKSF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NX138BKSF Tags
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SSM6N7002KFU,LF
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2N7002DW-7-F
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SSM6L56FE,LM
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SSM6N37FU,LF
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2N7002DWH6327XTSA1
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2N7002BKS,115
Nexperia USA Inc.
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DMG6602SVT-7
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