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

Infineon Technologies BSS169H6906XTSA1

Name: BSS169H6906XTSA1
Brand: Infineon Technologies
SKU: BSS169H6906XTSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BSS169H6906XTSA1

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

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

Datasheet:: BSS169H6906XTSA1.pdf

Description:: MOSFET N-CH 100V 170MA SOT23-3

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Product details

Overview

BSS169H6906XTSA1 from Infineon Technologies is an N-channel depletion-mode SIPMOS® small-signal transistor in PG-SOT-23 package, rated for 100 V V_DS, 12 Ω max R_DS(on) at V_GS = 0 V, and 90 mA I_DSS; used in analog switching, level shifting, and constant-current biasing circuits in automotive body electronics and industrial sensor interfaces.

For engineers reviewing the BSS169H6906XTSA1 datasheet, BSS169H6906XTSA1 pinout, BSS169H6906XTSA1 application, or BSS169H6906XTSA1 equivalent, key selection criteria include verified V_GS(th) band H6906 sorting (−2.3 V to −2.15 V), dv/dt immunity of 6 kV/µs, and AEC-Q101 qualification for under-hood signal conditioning.

Technical Context

This depletion-mode MOSFET operates with negative gate threshold voltage (V_GS(th) = −2.9 to −1.8 V) and conducts at zero gate bias, enabling fail-safe "normally-on" switching in power sequencing and analog current sources. Its integrated body diode supports bidirectional current flow with t_rr = 20.5–25.6 ns and Q_rr = 9.7–12.1 nC.

The device features low input capacitance (C_iss = 51–68 pF) and gate charge (Q_g = 2.1–2.8 nC), optimized for high-frequency switching up to several MHz while maintaining robust dv/dt immunity (6 kV/µs) under fast transient conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS max	100 V - supports operation across 24 V automotive and 48 V industrial bus systems without derating.
R_DS(on) max @ V_GS = 0 V	12 Ω - defines on-resistance in depletion-mode bias, enabling stable ~9 mA current source at 100 mV drop.
I_DSS min	90 mA - guaranteed drain saturation current at V_GS = 0 V, V_DS = 10 V; sets baseline conduction capability.
V_GS(th) band H6906	−2.3 V to −2.15 V - tight threshold sorting enables matched biasing in dual-transistor current mirrors or differential pairs.
dv/dt immunity	6 kV/µs - prevents false turn-on during high-slew-rate transients in motor drive gate drivers or EMI-prone environments.
T_j range	−55 °C to +150 °C - qualified per AEC-Q101, suitable for under-dash and engine compartment mounting.
P_tot @ T_A = 25 °C	0.36 W - limits continuous power in SOT-23 footprint; requires thermal relief for >100 mW sustained dissipation.

Pinout & Package

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

Pin/Terminal	Circuit Role	Design Meaning
1 (Drain)	Main current-carrying terminal	Connected to high-side load or supply rail; carries full I_D and must be routed with adequate copper area for thermal management.
2 (Gate)	Control electrode	High-impedance input requiring guarded trace routing; negative V_GS required to reduce I_D; no pull-down needed for default-on operation.
3 (Source)	Reference node and current return path	Typically tied to ground or common reference; forms body diode anode; critical for accurate V_GS(th) measurement and thermal coupling.

Key Features

Feature	Design Value
Depletion-mode operation	Conducts at V_GS = 0 V - eliminates need for active bias circuitry in always-on current sources or fail-safe switches.
V_GS(th) band sorting (H6906)	−2.3 V to −2.15 V - enables precise matching in analog front-ends where threshold consistency impacts offset and gain stability.
AEC-Q101 qualification	Qualified for automotive applications - validated for temperature cycling, humidity, and mechanical shock per stress test requirements.
dv/dt rated	6 kV/µs - suppresses parasitic turn-on in high-noise environments such as alternator regulators or solenoid drivers.
Halogen-free & RoHS compliant	Meets AEC61249-2-21 and EU RoHS Directive - ensures compliance for global automotive and industrial end-equipment certifications.

Applications

Automotive Body Control Module

Industrial Current Source Biasing

Use Scenario: Level-shifting logic signals between 5 V microcontrollers and 24 V lamp drivers in BCMs.

IC Role / Device Role / Timing Role: Depletion-mode switch providing passive pull-up with inherent fail-safe conduction when gate is un-driven.

Use Value: Eliminates external bias resistors and reduces component count while ensuring lamp activation during MCU reset or brownout.

Use Scenario: Stable 100 µA reference current generation for precision op-amp bias networks in sensor signal conditioners.

IC Role / Device Role / Timing Role: Constant-current sink using fixed V_GS(th) and R_DS(on) characteristics in self-biased configuration.

Use Value: Achieves <±2% current variation over −40 °C to +125 °C due to matched V_GS(th) band H6906 and low tempco R_DS(on).

Reverse Polarity Protection

Analog Switch for Signal Routing

Use Scenario: Low-loss reverse-voltage blocking in 12 V battery-powered instrumentation with minimal forward drop.

IC Role / Device Role / Timing Role: High-side depletion MOSFET acting as ideal diode replacement with V_SD ≈ 0.79 V at 170 mA.

Use Value: Reduces power loss by 40% vs. Schottky diode solution while retaining fast reverse recovery (t_rr < 26 ns).

Use Scenario: Bidirectional analog signal switching in programmable gain amplifiers for multi-range industrial ADC front-ends.

IC Role / Device Role / Timing Role: Low-capacitance (C_iss = 68 pF max), low-R_ON switch enabling <1% THD at 100 kHz.

Use Value: Maintains signal integrity across 0–10 V range with <0.5 Ω R_DS(on) variation over V_GS = −0.2 to −0.1 V control window.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMN2004LKQ-7	V_GS(th) = −1.2 to −0.6 V (enhancement mode); not depletion-mode; requires active gate drive.	Not suitable for fail-safe or zero-bias operation; limited to actively controlled switching.	Select only if gate driver availability and system-level control logic exist.
BSS84-7-F	V_GS(th) = −0.8 to −2.5 V (wider spread); no V_GS(th) band sorting; R_DS(on) max = 10 Ω at V_GS = 0 V.	Lacks H6906-level threshold consistency; unsuitable for matched-pair analog designs.	Acceptable for non-critical digital switching where V_GS(th) tolerance > ±0.5 V is acceptable.

Compared with DMN2004LKQ-7 and BSS84-7-F, BSS169H6906XTSA1 uniquely delivers factory-sorted depletion-mode behavior with guaranteed −2.3 V to −2.15 V V_GS(th), enabling zero-bias operation and precise analog matching unattainable with enhancement-mode or unsorted alternatives.

Availability

BSS169H6906XTSA1 is available at Aetrix Electronics and suitable for automotive body control modules, industrial current-source biasing, reverse polarity protection circuits, and analog signal routing requiring stable component supply and AEC-Q101-compliant sourcing.

Supply support for BSS169H6906XTSA1 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 leadership in silicon-based power devices and automotive qualification standards.

BSS169 belongs to Infineon's SIPMOS® small-signal transistor product line, designed specifically for high-reliability analog switching, biasing, and protection functions in automotive and industrial environments where depletion-mode behavior and AEC-Q101 compliance are mandatory.

FAQ

What does the 'H6906' suffix indicate in BSS169H6906XTSA1?

The H6906 suffix identifies the V_GS(th) sorting band: transistors are binned to −2.3 V to −2.15 V at V_DS = 3 V and I_D = 50 µA. This band is printed on the reel label and ensures consistent threshold voltage for matched analog designs like current mirrors or differential amplifiers.

Can BSS169H6906XTSA1 replace a JFET in analog circuits?

Yes - its depletion-mode operation, low gate leakage (<10 nA), and predictable transconductance (g_fs = 0.10–0.19 S) make it functionally compatible with N-channel JFETs in constant-current sources, voltage-controlled resistors, and low-noise preamplifier loads, though layout must accommodate its SOT-23 thermal profile.

Is the body diode suitable for reverse recovery applications?

Yes - the integrated body diode has t_rr = 20.5–25.6 ns and Q_rr = 9.7–12.1 nC at I_F = 0.12 A, making it appropriate for moderate-frequency freewheeling and reverse polarity protection where fast recovery is required but SiC or Schottky performance is unnecessary.

How does AEC-Q101 qualification impact PCB layout practices?

AEC-Q101 qualification confirms reliability under automotive stress conditions, but does not relax layout rules: maintain ≥0.2 mm solder mask dams between pins, use ≥0.3 mm trace width for drain connections, and ensure ≥1 cm² copper pour under the thermal pad for junction-to-board thermal resistance ≤350 K/W in minimal footprint layouts.

BSS169H6906XTSA1 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:: Last Time Buy

FET Type:: N-Channel, Depletion Mode

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 100 V

Current - Continuous Drain (Id) @ 25°C:: 170mA (Ta)

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

Rds On (Max) @ Id, Vgs:: 6Ohm @ 170mA, 10V

Vgs(th) (Max) @ Id:: 1.8V @ 50µA

Gate Charge (Qg) (Max) @ Vgs:: 2.8 nC @ 7 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 68 pF @ 10 V

FET Feature:: -

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

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: PG-SOT23

BSS169H6906XTSA1 FAQ

1.How can I place an order for BSS169H6906XTSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BSS169H6906XTSA1 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 BSS169H6906XTSA1 reliable?

The price and inventory of BSS169H6906XTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSS169H6906XTSA1 is usually 5 days.

3.What payment methods are accepted for BSS169H6906XTSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSS169H6906XTSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BSS169H6906XTSA1?

BSS169H6906XTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BSS169H6906XTSA1 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 BSS169H6906XTSA1?

For technical support, including BSS169H6906XTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSS169H6906XTSA1 requirements.

6.How does Aetrix verify that BSS169H6906XTSA1 is sourced from the original manufacturer or authorized distributors?

All BSS169H6906XTSA1 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 BSS169H6906XTSA1 meets industry standards.

7.What is the process for return or replacement of BSS169H6906XTSA1?

All BSS169H6906XTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BSS169H6906XTSA1, 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 BSS169H6906XTSA1 part is unused and in its original packaging.

Return procedure for BSS169H6906XTSA1:

1.Submit a request within 90 days.

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

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