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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Infineon Technologies BSS138N E6908

Name: BSS138N E6908
Brand: Infineon Technologies
SKU: BSS138N E6908
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BSS138N E6908

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BSS138N E6908.pdf

Description:: MOSFET N-CH 60V 230MA SOT23-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BSS138N from Infineon Technologies is an N-channel enhancement-mode logic-level SIPMOS® small-signal MOSFET rated for 60 V V_DS, 0.23 A continuous drain current, and 3.5 Ω max R_DS(on) at V_GS = 4.5 V. It features AEC-Q101 qualification, 6 kV/µs dv/dt immunity, and operates across –55 °C to 150 °C for automotive signal switching in low-power gate drivers and level-shift circuits.

For engineers reviewing the BSS138N datasheet, BSS138N pinout, BSS138N application, or BSS138N equivalent, key selection criteria include logic-level gate drive compatibility (V_GS(th) = 0.6–1.4 V), robust dv/dt rating for noisy environments, thermal resistance (R_thJA = 350 K/W), and AEC-Q101 qualification for automotive subsystems.

Technical Context

This discrete MOSFET uses silicon-based SIPMOS® technology optimized for fast switching and low gate charge (Q_g = 1.0–1.4 nC) with minimal input capacitance (C_iss = 32–41 pF). Its transconductance (g_fs = 0.1–0.2 S) and tight V_GS(th) distribution support stable turn-on in 3.3 V and 5 V logic-controlled paths.

The integrated body diode exhibits t_rr = 9.1–14.5 ns and Q_rr = 3.3–5 nC under 30 V reverse bias, enabling efficient flyback and clamping in low-current DC-DC feedback loops and LED current regulation.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	60 V - supports operation in 24 V automotive systems with margin against load-dump transients
R_DS(on) max	3.5 Ω @ V_GS = 4.5 V - enables full enhancement with standard 3.3 V/5 V microcontroller GPIO
I_D cont.	0.23 A @ T_A = 25 °C - suitable for signal routing, enable switches, and low-side sensing paths
dv/dt rating	6 kV/µs - prevents false turn-on in high-noise motor control or ignition circuits
Q_g	1.4 nC max - reduces gate drive power and switching losses in 1–10 MHz PWM applications
t_r/t_f	3.0–4.5 ns / 8.2–12.3 ns - supports clean edge integrity in digital interface isolation stages
T_j range	–55 °C to +150 °C - qualified for under-hood and engine-control module deployment

Pinout & Package

Package: PG-SOT-23 (JEDEC TO-236AB), surface-mount, 3-pin plastic package with standard footprint and thermal pad exposure per Infineon outline Rev. 2.86.

Pin/Terminal	Circuit Role	Design Meaning
1 (Gate)	Control electrode	Accepts logic-level voltage (0.6–1.4 V threshold); low C_iss minimizes drive current demand
2 (Source)	Reference node	Connected to system ground or low-side return; ties to internal body diode cathode
3 (Drain)	Power output terminal	Switches up to 60 V loads; exposed drain metal improves heat dissipation in minimal-footprint layouts

Key Features

Feature	Design Value
Logic-level gate drive	V_GS(th) = 0.6–1.4 V ensures reliable turn-on from 3.3 V MCU outputs without level-shifting
AEC-Q101 qualified	Validated for automotive electronics per stress test requirements including HTGB, HTRB, and ESD
dv/dt immune	6 kV/µs rating suppresses parasitic turn-on during rapid bus voltage transients in motor drivers
Halogen-free & RoHS	Complies with IEC61249-2-21 and EU RoHS Directive for environmentally constrained supply chains
Low Q_gd/Q_g ratio	Q_gd = 0.3–0.4 nC / Q_g = 1.0–1.4 nC improves Miller immunity and switching controllability

Applications

Automotive Door Module Control

USB Port Power Switching

Use Scenario: Driving window lift motors, mirror actuators, and interior lighting via microcontroller GPIO.

IC Role / Device Role / Timing Role: Low-side switch enabling/disabling 12 V loads with fast response and fault tolerance.

Use Value: AEC-Q101 qualification and 6 kV/µs dv/dt rating prevent spurious activation during vehicle battery ripple and alternator noise.

Use Scenario: Enabling/disabling VBUS on USB 2.0 downstream ports in docking stations and hubs.

IC Role / Device Role / Timing Role: Load switch isolating power rail with minimal voltage drop and controlled inrush.

Use Value: R_DS(on) ≤ 3.5 Ω at 4.5 V ensures < 100 mV drop at 25 mA, preserving USB voltage compliance.

IoT Sensor Node Level Shifting

Industrial PLC Input Conditioning

Use Scenario: Translating 1.8 V/3.3 V sensor logic to 5 V or 24 V industrial bus levels.

IC Role / Device Role / Timing Role: Bidirectional level translator using source-follower or common-drain configuration.

Use Value: Tight V_GS(th) distribution (0.6–1.4 V) and low C_iss preserve signal integrity up to 10 MHz.

Use Scenario: Debouncing and filtering dry-contact inputs (pushbuttons, limit switches) in programmable logic controllers.

IC Role / Device Role / Timing Role: Signal conditioning switch with integrated ESD protection and transient suppression.

Use Value: JESD22-A114 Class 0 ESD rating and –55 °C to +150 °C operation ensure reliability in factory-floor environments.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel logic-level MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMN2004K-7	R_DS(on) = 2.8 Ω max @ 4.5 V; higher I_D = 0.35 A; same SOT-23 package	Higher current capability suits 5 V logic-driven relays; slightly lower V_GS(th) min (0.5 V)	Prefer when >0.23 A load current or tighter V_GS(th) spread is required
2N7002K	R_DS(on) = 5.5 Ω max @ 4.5 V; no AEC-Q101 qualification; identical pinout	Cost-optimized for consumer-grade non-automotive use; lacks dv/dt rating and automotive temp range	Select only for commercial temperature applications where AEC-Q101 and 6 kV/µs immunity are not needed

Compared with DMN2004K-7 and 2N7002K, the BSS138N uniquely combines AEC-Q101 qualification, 6 kV/µs dv/dt immunity, and guaranteed R_DS(on) ≤ 3.5 Ω at 4.5 V-making it the only option validated for safety-critical automotive signal switching where transient robustness is mandatory.

Availability

BSS138N is available at Aetrix Electronics and suitable for automotive door modules, USB power delivery circuits, IoT level-shifting nodes, and industrial PLC input conditioning requiring stable component supply and long-term lifecycle assurance.

Supply support for BSS138N 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

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs and discrete devices.

The SIPMOS® small-signal transistor product line delivers logic-compatible, AEC-Q101-qualified MOSFETs optimized for automotive signal switching, load switching, and interface conditioning in space-constrained designs.

FAQ

Is BSS138N suitable for 3.3 V microcontroller GPIO drive?

Yes. With a gate threshold voltage of 0.6–1.4 V and guaranteed turn-on at V_GS = 4.5 V, the BSS138N fully enhances using standard 3.3 V logic outputs. Its R_DS(on) remains ≤ 4.0 Ω at V_GS = 3.3 V per typical curves, supporting reliable low-current switching without external level shifters.

Does BSS138N include integrated ESD protection?

Yes. The device meets JESD22-A114 Human Body Model (HBM) Class 0 (<250 V), indicating built-in gate oxide protection sufficient for handling in automated assembly lines. No external TVS diodes are required for basic ESD robustness in board-level integration.

What is the maximum safe operating voltage for BSS138N in repetitive pulse conditions?

The absolute maximum V_DS is 60 V DC, and the device maintains safe operation up to this rating under pulsed conditions (I_D,pulse = 0.92 A) provided peak junction temperature stays ≤ 150 °C. Derating is required above T_A = 70 °C per the published I_D vs. T_A curve.

Can BSS138N replace 2N7002 in automotive designs?

No-2N7002 lacks AEC-Q101 qualification, dv/dt rating, and extended temperature validation. While pin-compatible, it is not approved for automotive use. BSS138N provides documented automotive stress-test compliance, making it the qualified replacement where functional equivalence alone is insufficient.

BSS138N E6908 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: SIPMOS®

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 60 V

Current - Continuous Drain (Id) @ 25°C:: 230mA (Ta)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 3.5Ohm @ 230mA, 10V

Vgs(th) (Max) @ Id:: 1.4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 1.4 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 41 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 360mW (Ta)

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-SOT23

BSS138N E6908 FAQ

1.How can I place an order for BSS138N E6908 through Aetrix?

Please submit a Request for Quotation (RFQ) for BSS138N E6908 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 BSS138N E6908 reliable?

The price and inventory of BSS138N E6908 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSS138N E6908 is usually 5 days.

3.What payment methods are accepted for BSS138N E6908?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSS138N E6908 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BSS138N E6908?

BSS138N E6908 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BSS138N E6908 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 BSS138N E6908?

For technical support, including BSS138N E6908 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSS138N E6908 requirements.

6.How does Aetrix verify that BSS138N E6908 is sourced from the original manufacturer or authorized distributors?

All BSS138N E6908 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 BSS138N E6908 meets industry standards.

7.What is the process for return or replacement of BSS138N E6908?

All BSS138N E6908 units undergo pre-shipment inspection (PSI). If there is an issue with BSS138N E6908, 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 BSS138N E6908 part is unused and in its original packaging.

Return procedure for BSS138N E6908:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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