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

Infineon Technologies BSS139H6906XTSA1

Name: BSS139H6906XTSA1
Brand: Infineon Technologies
SKU: BSS139H6906XTSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BSS139H6906XTSA1

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

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

Datasheet:: BSS139H6906XTSA1.pdf

Description:: MOSFET N-CH 250V 100MA SOT23-3

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Product details

Overview

BSS139H6906XTSA1 from Infineon Technologies is an N-channel depletion-mode SIPMOS® small-signal transistor in PG-SOT-23 package, rated for 250 V V_DS, 30 Ω R_DS(on) max at V_GS = 0 V, and 0.03 A I_DSS,min, used in high-voltage analog switching and precision current source circuits.

For engineers reviewing the BSS139H6906XTSA1 datasheet, BSS139H6906XTSA1 pinout, BSS139H6906XTSA1 application, or BSS139H6906XTSA1 equivalent, key selection criteria include its depletion-mode operation, V_GS(th) banding (H6906 = L-band: −1.5 V to −1.3 V), dv/dt rating of 6 kV/µs, and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This device operates as a normally-on (depletion-mode) switch requiring negative gate bias to turn off, enabling zero-power hold functionality in standby circuits. Its 250 V breakdown voltage and 6 kV/µs dv/dt immunity support robust operation in inductive load switching and flyback snubber networks.

Thermal resistance R_thJA is 350 K/W on minimal footprint, and its reverse diode features 0.81–1.2 V V_SD at 0.1 A with 8.6–12.9 ns t_rr, making it suitable for synchronous rectification and bidirectional signal clamping where fast recovery and low forward drop are critical.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	250 V - supports high-voltage analog switches and line-powered sensor interfaces without external level-shifting.
R_DS(on),max	30 Ω at V_GS = 0 V - defines on-resistance in depletion mode; enables stable current sourcing up to 30 mA at 10 V drop.
I_DSS,min	0.03 A - minimum saturation current at V_GS = 0 V, ensuring predictable turn-on behavior across temperature.
V_GS(th)	−1.5 V to −1.3 V (L-band, H6906 marking) - tight threshold spread improves matching in current mirror arrays.
dv/dt rating	6 kV/µs - prevents false triggering during fast transients in motor drive gate drivers and SMPS feedback paths.
t_rr	8.6–12.9 ns - enables use as a fast-recovery clamp diode in high-frequency signal routing and protection circuits.
P_tot	0.36 W at T_A = 25 °C - limits continuous power in SOT-23; requires thermal derating above 70 °C ambient.

Pinout & Package

Package: PG-SOT-23 (JEDEC TO-236AB), surface-mount, 3-pin plastic case with standard footprint per Infineon outline drawing Rev. 1.8.

Pin/Terminal	Circuit Role	Design Meaning
1 (Drain)	High-voltage current path output	Connected to load or supply rail; withstands 250 V and handles pulsed currents up to 0.4 A.
2 (Gate)	Depletion-mode control terminal	Receives negative bias (≤ −1.3 V) to reduce I_D; zero-bias maintains conduction for always-on functions.
3 (Source)	Reference node and diode anode	Serves as return path; internal body diode anode enables bidirectional current flow in clamp configurations.

Key Features

Feature	Design Value
Depletion-mode operation	Enables fail-safe "always-on" behavior without gate drive circuitry-ideal for power-loss detection and bias generation.
V_GS(th) band sorting (H6906 = L-band)	Guarantees −1.5 V to −1.3 V threshold range per reel, improving matching in dual-transistor current sources.
dv/dt immunity	6 kV/µs rating prevents spurious turn-on during EMI-rich switching events in industrial solenoid drivers.
AEC-Q101 qualification	Validated for automotive under-hood applications including body control modules and LED driver feedback sensing.
Halogen-free & RoHS-compliant	Meets IEC61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained PCB assemblies.

Applications

High-Voltage Analog Switch

Precision Current Source

Use Scenario: Selecting between two high-impedance sensor outputs in a 200 V-rated industrial monitoring system.

IC Role / Device Role / Timing Role: Depletion-mode switch providing passive signal routing without active gate control.

Use Value: Eliminates need for negative supply rail while maintaining <1 µA leakage at 250 V due to I_D(off) ≤ 0.1 µA.

Use Scenario: Generating a stable 30 µA reference current for calibration in a portable gas analyzer.

IC Role / Device Role / Timing Role: Two-terminal current regulator using I_DSS and matched V_GS(th) bands.

Use Value: Achieves ±5% current accuracy over −40 °C to +125 °C using L-band (H6906) threshold consistency.

Inductive Load Snubber

Fast-Recovery Clamp Diode

Use Scenario: Suppressing voltage spikes across relay coils in automotive door lock actuators.

IC Role / Device Role / Timing Role: dv/dt-rated transistor absorbing energy via controlled avalanche and body diode conduction.

Use Value: Withstands 6 kV/µs transients without latch-up, reducing external TVS count by one per channel.

Use Scenario: Protecting ADC inputs from overvoltage in a 1 MSPS data acquisition front-end.

IC Role / Device Role / Timing Role: Integrated reverse diode clamping transient excursions with sub-13 ns recovery.

Use Value: Limits overshoot to <1.2 V at 0.1 A while adding only 6.7–8.4 pF C_oss to signal path capacitance.

Equivalent & Alternatives

The following parts are listed as comparable options for similar depletion-mode MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMN2004LK-7	V_DS = 200 V, R_DS(on) = 25 Ω, no V_GS(th) banding, SOT-23 package	Lacks AEC-Q101 qualification and dv/dt rating; unsuitable for automotive or high-dv/dt environments	Use only in cost-sensitive consumer applications below 200 V with relaxed reliability requirements.
BSS123	V_DS = 100 V, R_DS(on) = 6 Ω, enhancement-mode, no depletion operation	Requires positive gate drive; cannot replace BSS139 in zero-power hold or self-biasing topologies	Select only when circuit redesign allows active gate control and voltage headroom is limited to ≤100 V.

Compared with DMN2004LK-7 and BSS123, BSS139H6906XTSA1 uniquely combines 250 V capability, factory-sorted V_GS(th), and 6 kV/µs dv/dt immunity-making it irreplaceable in automotive snubbers and high-voltage current mirrors where passive operation and transient hardness are mandatory.

Availability

BSS139H6906XTSA1 is available at Aetrix Electronics and suitable for high-voltage analog switching, precision current sourcing, inductive snubbing, and fast-recovery clamping requiring stable component supply across automotive, industrial, and test equipment programs.

Supply support for BSS139H6906XTSA1 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, with global manufacturing and quality certification to ISO/TS 16949.

The SIPMOS® small-signal transistor product line delivers high-voltage, low-leakage, and thermally robust discrete solutions for automotive-grade analog signal conditioning and power interface applications.

FAQ

What does the 'H6906' marking indicate on BSS139H6906XTSA1?

The 'H6906' suffix identifies the V_GS(th) band (L-band: −1.5 V to −1.3 V) and reel packaging configuration (3000 pcs/reel, sorted by threshold voltage). This banding ensures tighter matching for current-source and mirror applications, and the marking appears on both device body and reel label per Infineon Rev. 1.8 documentation.

Is BSS139H6906XTSA1 suitable for linear (analog) operation?

Yes-it is characterized for linear operation with specified R_DS(on) vs. I_D and g_fs curves across temperature. Its 30 Ω max on-resistance and 0.06–0.13 S transconductance support stable gain in amplifier stages, but thermal derating must be applied due to 350 K/W R_thJA on minimal footprint.

Does the internal body diode support bidirectional current flow?

Yes-the integrated source-drain diode has 0.81–1.2 V forward voltage at 0.1 A and 8.6–12.9 ns reverse recovery time. It is rated for 0.1 A continuous and 0.4 A pulsed forward current, enabling use in bidirectional clamping, flyback catch, and level-shifting paths without external diodes.

How does AEC-Q101 qualification impact design use cases?

AEC-Q101 validation confirms performance across −55 °C to +150 °C junction temperature, with stress testing for HTGB, HTRB, and ESD (≥250 V HBM). This permits direct use in automotive body electronics, lighting control, and engine bay sensors without additional qualification effort, provided board-level thermal and layout guidelines are followed.

BSS139H6906XTSA1 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, Depletion Mode

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 250 V

Current - Continuous Drain (Id) @ 25°C:: 100mA (Ta)

Drive Voltage (Max Rds On, Min Rds On):: 0V, 10V

Rds On (Max) @ Id, Vgs:: 14Ohm @ 100mA, 10V

Vgs(th) (Max) @ Id:: 1V @ 56µA

Gate Charge (Qg) (Max) @ Vgs:: 3.5 nC @ 5 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 76 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-SOT23-3-5

BSS139H6906XTSA1 FAQ

1.How can I place an order for BSS139H6906XTSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BSS139H6906XTSA1 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 BSS139H6906XTSA1 reliable?

The price and inventory of BSS139H6906XTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSS139H6906XTSA1 is usually 5 days.

3.What payment methods are accepted for BSS139H6906XTSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSS139H6906XTSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BSS139H6906XTSA1?

BSS139H6906XTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BSS139H6906XTSA1 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 BSS139H6906XTSA1?

For technical support, including BSS139H6906XTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSS139H6906XTSA1 requirements.

6.How does Aetrix verify that BSS139H6906XTSA1 is sourced from the original manufacturer or authorized distributors?

All BSS139H6906XTSA1 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 BSS139H6906XTSA1 meets industry standards.

7.What is the process for return or replacement of BSS139H6906XTSA1?

All BSS139H6906XTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BSS139H6906XTSA1, 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 BSS139H6906XTSA1 part is unused and in its original packaging.

Return procedure for BSS139H6906XTSA1:

1.Submit a request within 90 days.

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

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