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Infineon Technologies BSP135H6433XTMA1
- Part No.:
- BSP135H6433XTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BSP135H6433XTMA1.pdf
- Description:
- MOSFET N-CH 600V 120MA SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:2,997
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Product details
Overview
BSP135H6433XTMA1 from Infineon Technologies is an N-channel depletion-mode SIPMOS® small-signal transistor rated for 600 V drain-source breakdown voltage, 60 Ω max RDS(on) at VGS = 0 V, and 0.12 A continuous drain current at 25 °C - designed for high-voltage, low-power switching in offline auxiliary supplies and ESD-protected signal routing.
For engineers reviewing the BSP135H6433XTMA1 datasheet, BSP135H6433XTMA1 pinout, BSP135H6433XTMA1 application, or BSP135H6433XTMA1 equivalent, key selection criteria include its dv/dt rating (6 kV/µs), VGS(th) banding (H6433 indicates -1.5 to -1.35 V), and AEC-Q101 qualification for automotive-grade reliability in harsh environments.
Technical Context
This device operates in depletion mode, enabling normally-on behavior with gate control via negative VGS; it features integrated reverse diode with 87–130 ns trr and 70–104 nC Qrr, supporting snubberless flyback and capacitive-load switching.
Its thermal resistance RthJS is 25 K/W (junction-to-soldering point), and dynamic parameters include Ciss = 98–146 pF, Qg = 3.7–4.9 nC, and td(off) = 28–42 ns - optimized for fast, low-loss transitions in compact SOT-223 layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR(DSS) | 600 V - supports direct connection to 400 V AC mains after rectification without external clamping |
| RDS(on), max | 60 Ω at VGS = 0 V - enables low-quiescent-current bias networks in always-on standby circuits |
| ID, cont | 0.12 A at TA = 25 °C - suitable for <1 W auxiliary power rails in SMPS controllers |
| dv/dt rating | 6 kV/µs - suppresses false turn-on during high-slew-rate transients in inductive loads |
| VGS(th) band | H6433 = -1.5 to -1.35 V - ensures tight gate threshold control for consistent turn-off timing across production lots |
| trr | 87–130 ns - minimizes reverse recovery loss in high-frequency flyback snubberless operation |
| RthJS | 25 K/W - allows direct thermal coupling to PCB copper pour for passive cooling in space-constrained designs |
Pinout & Package
Package: PG-SOT223 (standardized JEDEC TO-261AA variant with exposed drain pad on pin 4).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Gate) | Control terminal | Accepts negative VGS to modulate channel; requires stable bias below -1.35 V for full turn-off |
| Pin 2 (Source) | Reference node | Common return path for gate drive and load current; tied to system ground in most configurations |
| Pin 3 (Drain) | High-voltage output | Carries switched 600 V DC; connected to PCB copper pour for thermal conduction |
| Pin 4 (Drain tab) | Thermal & electrical drain connection | Exposed metal pad soldered directly to PCB ground plane - primary heat dissipation path |
Key Features
| Feature | Design Value |
|---|---|
| Depletion-mode operation | Enables fail-safe "always-on" default state for brown-out detection and power-fail signaling |
| AEC-Q101 qualified | Validated for automotive under-hood ambient temperatures (-55 to +150 °C) and mechanical shock |
| VGS(th) band marking | H6433 reel code guarantees VGS(th) between -1.5 V and -1.35 V - eliminates binning during design-in |
| dv/dt immunity | 6 kV/µs rating prevents spurious turn-on during fast-rising noise on high-side switch nodes |
| Halogen-free & RoHS | Complies with IEC61249-2-21 and EU Directive 2011/65/EU - supports green manufacturing requirements |
Applications
| Offline Auxiliary Power Supply | ESD-Protected Signal Routing |
|---|---|
Use Scenario: Providing isolated 5–12 V bias for PWM controllers in 230 V AC-input flyback converters. IC Role / Device Role / Timing Role: High-voltage start-up switch that conducts until main controller powers up, then turns off via gate pull-down. Use Value: Eliminates need for high-wattage start-up resistors; 600 V rating avoids external Zener clamping. | Use Scenario: Protecting analog sensor inputs (e.g., thermistor, potentiometer) from ±8 kV contact ESD per IEC 61000-4-2. IC Role / Device Role / Timing Role: Bidirectional clamping element leveraging intrinsic body diode and controlled dv/dt turn-on. Use Value: Self-triggering response to fast transients without external trigger circuitry; AEC-Q101 ensures field reliability. |
| Automotive Door Module Logic | Industrial PLC Input Conditioning |
Use Scenario: Enabling/disabling window lift motor drivers based on CAN message status in body control modules. IC Role / Device Role / Timing Role: High-side enable switch with built-in overvoltage protection and thermal foldback. Use Value: Withstands load-dump pulses up to 60 V; depletion mode ensures safe default-on state during microcontroller reset. | Use Scenario: Level-shifting and isolating 24 V DC digital inputs from FPGA-based logic in factory automation systems. IC Role / Device Role / Timing Role: Voltage-transient hardened interface buffer with controlled turn-off delay for debouncing. Use Value: 6 kV/µs dv/dt rating prevents false triggering from relay coil spikes; SOT-223 footprint simplifies layout in dense I/O modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage depletion-mode transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BSP134H6327XTMA1 | VGS(th) band J (-1.2 to -1.0 V); RDS(on) max = 100 Ω | Higher threshold and higher on-resistance - less suitable for low-ID bias networks | Select when tighter VGS(th) tolerance is needed but higher RDS(on) is acceptable |
| STP1NK60Z | Enhancement-mode, 600 V, RDS(on) = 70 Ω; no VGS(th) banding | Requires active gate drive; lacks dv/dt immunity and AEC-Q101 qualification | Choose only for non-automotive, cost-sensitive designs where depletion-mode behavior is not required |
Compared with BSP134H6327XTMA1, BSP135H6433XTMA1 offers lower RDS(on) and tighter VGS(th) control for precision biasing; versus STP1NK60Z, it delivers inherent fail-safe operation and automotive-grade robustness without gate driver overhead.
Availability
BSP135H6433XTMA1 is available at Aetrix Electronics and suitable for offline auxiliary power supply, ESD-protected signal routing, and automotive door module logic requiring stable component supply and long-term lifecycle support.
Supply support for BSP135H6433XTMA1 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 targets high-reliability, high-voltage switching in automotive and industrial power interfaces - emphasizing depletion-mode safety, dv/dt immunity, and AEC-Q101 compliance.
FAQ
What does the 'H6433' suffix indicate in BSP135H6433XTMA1?
The H6433 marking identifies the VGS(th) band: -1.5 V to -1.35 V at Tj = 25 °C with ID = 94 µA. This banding is laser-marked on the device and printed on the reel label, ensuring predictable turn-off behavior without post-production sorting.
Can BSP135H6433XTMA1 be used in enhancement-mode configurations?
No - BSP135H6433XTMA1 is strictly a depletion-mode device. It conducts at VGS = 0 V and requires negative gate voltage (≤ -1.35 V) to achieve full turn-off. Enhancement-mode operation is physically impossible due to its doped channel structure.
Is the SOT-223 package lead-free and RoHS-compliant?
Yes - BSP135H6433XTMA1 uses Pb-free lead plating and meets RoHS Directive 2011/65/EU requirements. The device is also halogen-free per IEC61249-2-21, with no brominated flame retardants or chlorine-based compounds in the molding compound.
How is thermal performance affected by PCB layout for this SOT-223 device?
Thermal resistance RthJA drops from 115 K/W (minimal footprint) to 70 K/W with 6 cm² copper area. Pin 4 (drain tab) must be soldered to a solid internal or external copper pour; thermal vias under the tab reduce RthJS further, improving power handling beyond 0.12 A in pulsed operation.
BSP135H6433XTMA1 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):
- 600 V
- Current - Continuous Drain (Id) @ 25°C:
- 120mA (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 0V, 10V
- Rds On (Max) @ Id, Vgs:
- 45Ohm @ 120mA, 10V
- Vgs(th) (Max) @ Id:
- 1V @ 94µA
- Gate Charge (Qg) (Max) @ Vgs:
- 4.9 nC @ 5 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 146 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 1.8W (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223
BSP135H6433XTMA1 FAQ
1.How can I place an order for BSP135H6433XTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BSP135H6433XTMA1 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 BSP135H6433XTMA1 reliable?
The price and inventory of BSP135H6433XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSP135H6433XTMA1 is usually 5 days.
3.What payment methods are accepted for BSP135H6433XTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSP135H6433XTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BSP135H6433XTMA1?
BSP135H6433XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BSP135H6433XTMA1 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 BSP135H6433XTMA1?
For technical support, including BSP135H6433XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSP135H6433XTMA1 requirements.
6.How does Aetrix verify that BSP135H6433XTMA1 is sourced from the original manufacturer or authorized distributors?
All BSP135H6433XTMA1 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 BSP135H6433XTMA1 meets industry standards.
7.What is the process for return or replacement of BSP135H6433XTMA1?
All BSP135H6433XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with BSP135H6433XTMA1, 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 BSP135H6433XTMA1 part is unused and in its original packaging.
Return procedure for BSP135H6433XTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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