My Inquiry
My Account
Infineon Technologies BSP129H6906XTSA1
- Part No.:
- BSP129H6906XTSA1
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BSP129H6906XTSA1.pdf
- Description:
- MOSFET N-CH 240V 350MA SOT223-4
- Quantity:
- Payment:
- Shipping:
Inventory:3,261
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BSP129H6906XTSA1 from Infineon Technologies is an N-channel depletion-mode SIPMOS® small-signal transistor in PG-SOT223 package, rated for 240 V VDS, 6 Ω RDS(on) max at VGS = 0 V, and 0.35 A continuous drain current at 25 °C ambient. It features dv/dt ruggedness (6 kV/µs), AEC-Q101 qualification, and VGS(th) band sorting (H6906 indicates -1.5 to -1.3 V band) for precision timing and analog switching in automotive sensor interfaces.
For engineers reviewing the BSP129H6906XTSA1 datasheet, BSP129H6906XTSA1 pinout, BSP129H6906XTSA1 application, or BSP129H6906XTSA1 equivalent, key selection criteria include depletion-mode operation enabling zero-bias turn-on, dv/dt immunity for noisy environments, VGS(th) band consistency for matched channel behavior, and SOT223 thermal performance with 25 K/W RthJS.
Technical Context
This transistor operates in depletion mode, requiring negative gate-source bias to pinch off conduction-enabling fail-safe "normally-on" behavior in power sequencing and analog current sources. Its 240 V breakdown voltage and 6 kV/µs dv/dt rating support robust operation in inductive load switching and automotive body electronics where voltage transients exceed 100 V.
Thermal design is anchored by a low junction-to-soldering-point thermal resistance of 25 K/W and defined PCB footprint requirements (40 mm × 40 mm FR4 with 6 cm² copper). The H6906 marking confirms VGS(th) sorted into the -1.5 V to -1.3 V band, ensuring tight threshold matching across production reels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 240 V - supports operation in 12–48 V automotive systems with margin against load-dump transients |
| RDS(on) max | 6 Ω at VGS = 0 V - defines on-state power loss in zero-gate-bias applications like constant-current sinks |
| ID cont | 0.35 A at TA = 25 °C - sets maximum steady-state current without heatsinking on standard SMT layout |
| dv/dt rating | 6 kV/µs - enables reliable switching in inductive circuits without spurious turn-on |
| VGS(th) band | H6906 = -1.5 V to -1.3 V - ensures consistent turn-off threshold for matched pair biasing in differential amplifiers |
| RthJS | 25 K/W - allows direct thermal modeling from junction to PCB solder point for reliability prediction |
| Qg total | 3.8–5.7 nC - determines gate drive energy requirement for fast switching in PWM control loops |
Pinout & Package
Package: PG-SOT223 (4-pin variant, pin 4 = drain tab, thermally enhanced). Mounting requires vertical PCB orientation in still air per JEDEC standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Source) | Current return path for channel conduction | Connected to ground or reference node; carries full ID; low-impedance source terminal |
| Pin 2 (Gate) | Control electrode for channel depletion | Receives negative bias to reduce conduction; high-impedance input requiring ESD protection |
| Pin 3 (Drain) | Main current output terminal | High-voltage node; electrically isolated from tab; routed away from sensitive analog traces |
| Pin 4 (Drain Tab) | Thermal and electrical drain connection | Soldered to PCB copper pour for heat dissipation; must be connected to same net as pin 3 |
Key Features
| Feature | Design Value |
|---|---|
| Depletion-mode operation | Enables circuit functionality without external gate bias-ideal for fail-safe current sources and always-on monitoring paths |
| AEC-Q101 qualified | Validated for automotive under-hood applications including temperature cycling, humidity, and mechanical shock per stress test profile |
| VGS(th) band sorting (H6906) | Guarantees VGS(th) between -1.5 V and -1.3 V per reel, reducing calibration overhead in precision analog designs |
| dv/dt ruggedness | Withstands 6 kV/µs transient slew rates without false triggering-critical in solenoid and relay driver stages |
| Pb-free & halogen-free | Complies with RoHS Directive 2011/65/EU and IEC 61249-2-21, supporting green manufacturing and end-of-life recycling |
Applications
| Automotive Door Module Switching | Industrial Analog Current Sink |
|---|---|
Use Scenario: Controlling LED status indicators and microswitch feedback in door latch assemblies subject to battery reverse polarity and load dump. IC Role / Device Role / Timing Role: Depletion-mode switch providing default-on behavior during MCU reset; gate pulled low only during fault conditions. Use Value: Eliminates need for external pull-up bias network; 240 V rating absorbs ISO 7637-2 pulse 5a transients up to 170 V. | Use Scenario: Generating stable 100–300 µA bias currents for precision op-amp input stages in programmable logic controllers. IC Role / Device Role / Timing Role: Constant-current sink using fixed VGS(th) and RDS(on) to set IDSS ≈ 50 mA at VDS = 10 V, trimmed via gate resistor. Use Value: H6906 band ensures ±0.1 V VGS(th) tolerance, reducing current drift to <±3% across temperature and unit variance. |
| Automotive HVAC Blower Control | Medical Sensor Signal Conditioning |
Use Scenario: Driving small DC brush motors in climate control actuators where EMI immunity and thermal stability are critical. IC Role / Device Role / Timing Role: Low-duty-cycle PWM switch operating in linear region for soft-start; leverages dv/dt immunity to suppress commutation noise coupling. Use Value: 6 kV/µs rating prevents false turn-on from motor back-EMF spikes; RthJS = 25 K/W enables 0.35 A operation without forced airflow. | Use Scenario: Providing isolated, low-noise current bias for piezoresistive pressure sensors in portable diagnostic devices. IC Role / Device Role / Timing Role: Precision current source configured with gate resistor and feedback loop; uses depletion mode to avoid startup delay. Use Value: VGS(th) stability over -40 to +125 °C (±0.3 V drift) maintains sensor excitation accuracy within ±0.5% FS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar depletion-mode MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN2016LFG-7 | VDS = 20 V, RDS(on) = 1.6 Ω @ VGS = 0 V - lower voltage, lower RDS(on), no AEC-Q101 | Restricted to low-voltage consumer IoT sensors; unsuitable for automotive transients | Select only for cost-sensitive 3.3/5 V systems where dv/dt immunity and qualification are not required |
| IXTP01N100D | VDS = 1000 V, RDS(on) = 120 Ω @ VGS = 0 V - higher voltage, higher RDS(on), TO-220 package | Designed for HV industrial snubbers; lacks VGS(th) band sorting and SOT223 thermal profile | Choose only when >600 V blocking is mandatory and PCB space allows through-hole mounting |
Compared with DMN2016LFG-7 and IXTP01N100D, BSP129H6906XTSA1 uniquely balances 240 V capability, SOT223 thermal efficiency, AEC-Q101 compliance, and factory-sorted VGS(th)-making it the only option for automotive-grade depletion-mode switching in space-constrained modules.
Availability
BSP129H6906XTSA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial analog signal conditioning, medical sensor biasing, and HVAC actuator control requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for BSP129H6906XTSA1 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 BSP129 belongs to Infineon's SIPMOS® small-signal transistor family, designed specifically for high-reliability depletion-mode switching in automotive and industrial analog subsystems where zero-bias operation and transient immunity are essential.
FAQ
What does the 'H6906' suffix indicate in BSP129H6906XTSA1?
The H6906 suffix identifies the VGS(th) band: transistors on this reel are sorted to guarantee a gate threshold voltage between -1.5 V and -1.3 V at VDS = 3 V and ID = 108 µA. This banding is laser-marked on the reel label and enables tighter matching in differential or current-mirror configurations without post-production screening.
Can BSP129H6906XTSA1 be used in linear (analog) mode?
Yes-it is characterized for linear operation with typical output characteristics and RDS(on) vs. ID curves provided in the datasheet. Its 240 V VBR(DSS) and 6 kV/µs dv/dt rating allow safe operation in analog current sources and voltage-controlled resistors, provided power dissipation remains within the SOA limits defined for DC and pulsed conditions.
Is the drain tab (Pin 4) electrically isolated in PG-SOT223?
No-the drain tab (Pin 4) is internally connected to the drain terminal (Pin 3) and must be soldered to the same PCB net. It serves as both the primary thermal path and a low-inductance drain connection; isolation would violate the package construction and invalidate thermal resistance ratings.
Does BSP129H6906XTSA1 require gate protection diodes?
Yes-its gate oxide is rated for ±20 V VGS, and ESD class is 1A (>250 V, <500 V). In automotive or industrial environments, a series gate resistor (10–100 Ω) plus bidirectional TVS (e.g., 5.6 V) between gate and source is recommended to prevent damage from transients exceeding ±20 V or ESD events above 500 V.
BSP129H6906XTSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- SIPMOS™
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- N-Channel, Depletion Mode
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 240 V
- Current - Continuous Drain (Id) @ 25°C:
- 350mA (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 0V, 10V
- Rds On (Max) @ Id, Vgs:
- 6Ohm @ 350mA, 10V
- Vgs(th) (Max) @ Id:
- 1V @ 108µA
- Gate Charge (Qg) (Max) @ Vgs:
- 5.7 nC @ 5 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 108 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 1.8W (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT223-4
BSP129H6906XTSA1 FAQ
1.How can I place an order for BSP129H6906XTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BSP129H6906XTSA1 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 BSP129H6906XTSA1 reliable?
The price and inventory of BSP129H6906XTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSP129H6906XTSA1 is usually 5 days.
3.What payment methods are accepted for BSP129H6906XTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSP129H6906XTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BSP129H6906XTSA1?
BSP129H6906XTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BSP129H6906XTSA1 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 BSP129H6906XTSA1?
For technical support, including BSP129H6906XTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSP129H6906XTSA1 requirements.
6.How does Aetrix verify that BSP129H6906XTSA1 is sourced from the original manufacturer or authorized distributors?
All BSP129H6906XTSA1 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 BSP129H6906XTSA1 meets industry standards.
7.What is the process for return or replacement of BSP129H6906XTSA1?
All BSP129H6906XTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BSP129H6906XTSA1, 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 BSP129H6906XTSA1 part is unused and in its original packaging.
Return procedure for BSP129H6906XTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BSP129H6906XTSA1 Tags
-
BSZ180P03NS3EGATMA1
Infineon Technologies
-
SIRA14DP-T1-GE3
Vishay Siliconix
-
AO4419
Alpha & Omega Semiconductor Inc.
-
SISA14BDN-T1-GE3
Vishay Siliconix
-
PSMN9R5-30YLC,115
Nexperia USA Inc.
-
BUK9Y21-40E,115
Nexperia USA Inc.
-
RTQ035N03HZGTR
Rohm Semiconductor
-
FDMS7680
onsemi
-
RQ3E180BNTB
Rohm Semiconductor
-
STL6N2VH5
STMicroelectronics
-
DMPH4029LFGQ-7
Diodes Incorporated
-
DMT6015LSS-13
Diodes Incorporated
Tech Hub
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
