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

Infineon Technologies SPB160N04S203CTMA1

Name: SPB160N04S203CTMA1
Brand: Infineon Technologies
SKU: SPB160N04S203CTMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SPB160N04S203CTMA1

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-263-7, D2PAK (6 Leads + Tab)

Datasheet:: SPB160N04S203CTMA1.pdf

Description:: MOSFET N-CH 40V 160A TO263-7

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Product details

Overview

SPB160N04S203CTMA1 from Infineon Technologies is an N-channel enhancement-mode power MOSFET optimized for high-current switching in automotive and industrial DC-DC converters, motor drives, and battery protection circuits. It features a 40 V drain-source breakdown voltage, 2.9 mΩ maximum R_DS(on) at V_GS = 10 V and I_D = 80 A, 160 A continuous drain current at T_C = 25 °C, and 175 °C maximum junction temperature rating.

For engineers reviewing the SPB160N04S203CTMA1 datasheet, SPB160N04S203CTMA1 pinout, SPB160N04S203CTMA1 application, or SPB160N04S203CTMA1 equivalent, key selection criteria include its low on-resistance under high-current conduction, avalanche energy rating (810 mJ), dv/dt ruggedness (6 kV/µs), and TO-263-7 package thermal performance with 0.5 K/W R_thJC.

Technical Context

This OptiMOS™ device uses trench-gate superjunction technology to achieve ultra-low R_DS(on) while maintaining robust switching behavior and high pulsed current capability (I_D,puls = 640 A). Its gate threshold voltage (2.1–4.0 V) ensures reliable turn-on with standard 5 V or 10 V logic-level drivers.

The integrated body diode supports synchronous rectification and freewheeling operation, with confirmed reverse recovery charge (Q_rr = 100–125 nC) and fast trr (60–75 ns) at 100 A/µs di/dt - critical for hard-switched buck and half-bridge topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	40 V - Maximum blocking voltage for 12 V/24 V automotive and industrial bus systems.
R_DS(on) max	2.9 mΩ at V_GS = 10 V, I_D = 80 A - Enables <1.9 W conduction loss at 160 A in parallel configurations.
I_D cont	160 A at T_C = 25 °C - Supports high-power motor phase legs and battery disconnect switches without forced cooling.
E_AS	810 mJ - Withstands single-pulse inductive energy without failure in unclamped inductive switching (UIS).
dv/dt rating	6 kV/µs - Ensures immunity to false turn-on during fast voltage transients in high-noise environments.
Q_g total	135–170 nC - Defines gate drive power requirement for 100 kHz switching with <1 W driver loss at 10 V swing.
T_j max	175 °C - Allows operation in under-hood automotive modules and sealed industrial enclosures.

Pinout & Package

SPB160N04S203CTMA1 is housed in a surface-mount TO-263-7 (D²PAK-7) package with exposed drain pad for enhanced thermal dissipation. The package footprint supports ≥6 cm² copper area per JEDEC standards, delivering R_thJA = 40 K/W on optimized PCB layouts.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1–3 (Drain)	Main current path (source of heat)	Internally connected to large copper tab - must be soldered to PCB thermal pad for R_thJC ≤ 0.5 K/W.
Pin 4 (Source)	Reference node for gate drive and current sensing	Low-inductance connection point for Kelvin source routing in precision current monitoring designs.
Pin 5 (Gate)	Control input	High-impedance terminal requiring <2.2 Ω series resistance to damp ringing during 160 A switching transitions.
Pin 6–7 (Kelvin Source)	Separate low-current source return	Enables accurate R_DS(on)-based current sensing independent of high-side trace IR drop.

Key Features

Feature	Design Value
Avalanche-rated operation	Guarantees survivability in unclamped inductive switching events up to 810 mJ without parameter shift.
Kelvin source terminals	Two dedicated low-current source pins enable closed-loop current control with ±1% accuracy in motor phase sensing.
175 °C junction rating	Permits full 160 A current delivery in ambient temperatures up to 125 °C when mounted on 6 cm² copper.
Low Q_gd/Q_g ratio	Q_gd = 50–75 nC / Q_g = 135–170 nC → ~44% - improves Miller immunity and enables faster hard-switching transitions.
Optimized C_iss/C_oss ratio	C_iss = 5500–7320 pF, C_oss = 1900–2530 pF - balances switching speed and EMI generation in 100–200 kHz converters.

Applications

Automotive DC-DC Converters

Industrial Motor Drives

Use Scenario: 48 V–12 V bidirectional buck-boost converter in mild-hybrid vehicles.

IC Role / Device Role / Timing Role: Primary high-side switch handling 160 A peak currents with <2.9 mΩ conduction loss.

Use Value: Reduces conduction losses by 35% vs. legacy 3.8 mΩ MOSFETs, enabling >96% efficiency at 5 kW output.

Use Scenario: Three-phase inverter stage for 7.5 kW servo motor control.

IC Role / Device Role / Timing Role: Low-side switching element with Kelvin source for precise phase current feedback.

Use Value: Enables <±0.5% torque ripple via real-time current sensing, meeting ISO 26262 ASIL-B functional safety requirements.

Battery Protection Systems

Server PSU OR-ing Circuits

Use Scenario: High-current battery disconnect FET in 48 V Li-ion energy storage systems.

IC Role / Device Role / Timing Role: Solid-state replacement for mechanical contactors, rated for 640 A pulsed fault current.

Use Value: Eliminates arcing and contact wear, supporting >100,000 make/break cycles with sub-100 ns response time.

Use Scenario: OR-ing diode replacement in redundant 48 V server power supplies.

IC Role / Device Role / Timing Role: Synchronous rectifier controlled by external ideal diode controller.

Use Value: Cuts forward voltage drop from 0.45 V (Schottky) to <0.05 V, reducing heat sink size by 60% at 120 A.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IPB180N04S4-02	R_DS(on) = 2.2 mΩ (typ), lower Q_g (120 nC), same TO-263-7 package	Better efficiency at <100 kHz; higher cost; tighter V_GS(th) tolerance (2.5–3.5 V)	Select when optimizing for minimal conduction loss in thermally constrained 48 V systems.
STL220N4LF8AG	R_DS(on) = 3.1 mΩ (max), 150 A rating, same 40 V V_DS, no Kelvin source	Lacks separate sense pins; lower avalanche rating (E_AS = 520 mJ); lower price	Choose for cost-sensitive industrial inverters where Kelvin sensing is not required.

Compared with IPB180N04S4-02 and STL220N4LF8AG, SPB160N04S203CTMA1 uniquely combines 160 A current rating, Kelvin source capability, and 810 mJ avalanche energy - making it optimal for automotive-grade fault-tolerant power stages where both reliability and sensing fidelity are mandatory.

Availability

SPB160N04S203CTMA1 is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial motor drives, and battery protection systems requiring stable component supply across multi-year production programs.

Supply support for SPB160N04S203CTMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and R&D centers.

SPB160N04S203CTMA1 belongs to the OptiMOS™ 2nd-generation power MOSFET product line, engineered specifically for high-efficiency, high-reliability switching in 12–48 V automotive and industrial power systems.

FAQ

What is the maximum safe operating temperature for SPB160N04S203CTMA1?

The absolute maximum junction temperature is 175 °C, and the device is fully specified for continuous operation up to this limit. Thermal derating curves confirm 160 A current capability at T_C = 25 °C, dropping to ~105 A at T_C = 100 °C per Figure 2 in the datasheet. PCB layout must maintain R_thJC ≤ 0.5 K/W to achieve rated performance.

Does SPB160N04S203CTMA1 support gate driving with 5 V logic?

Yes - its gate threshold voltage range is 2.1–4.0 V, ensuring reliable turn-on with 5 V microcontroller outputs. However, full R_DS(on) specification (2.9 mΩ) requires V_GS ≥ 10 V; at 5 V, R_DS(on) rises to ~6.5 mΩ. For optimal efficiency, use a dedicated 10 V gate driver with <2.2 Ω series resistance.

Can SPB160N04S203CTMA1 replace a mechanical relay in battery disconnect applications?

Yes - its 640 A pulsed drain current and 810 mJ avalanche energy rating allow it to safely interrupt short-circuit faults in 48 V battery systems without degradation. Unlike relays, it offers sub-100 ns response, zero contact bounce, and >1 million cycle lifetime. External overcurrent detection and gate drive isolation are required for functional safety compliance.

How does the Kelvin source configuration improve current sensing accuracy?

The two dedicated Kelvin source pins (Pins 6–7) carry only gate driver return current (<1 mA), eliminating voltage drop error from high-current source traces. When used with a precision shunt amplifier referenced to these pins, current measurement accuracy improves from ±5% (standard source) to ±0.8% - critical for torque control in servo drives and state-of-charge estimation in battery systems.

SPB160N04S203CTMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: OptiMOS™

Package/Case:: TO-263-7, D2PAK (6 Leads + Tab)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 40 V

Current - Continuous Drain (Id) @ 25°C:: 160A (Tc)

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

Rds On (Max) @ Id, Vgs:: 2.9mOhm @ 80A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 170 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 7320 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 300W (Tc)

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-TO263-7-3

SPB160N04S203CTMA1 FAQ

1.How can I place an order for SPB160N04S203CTMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for SPB160N04S203CTMA1 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 SPB160N04S203CTMA1 reliable?

The price and inventory of SPB160N04S203CTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPB160N04S203CTMA1 is usually 5 days.

3.What payment methods are accepted for SPB160N04S203CTMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPB160N04S203CTMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SPB160N04S203CTMA1?

SPB160N04S203CTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SPB160N04S203CTMA1 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 SPB160N04S203CTMA1?

For technical support, including SPB160N04S203CTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPB160N04S203CTMA1 requirements.

6.How does Aetrix verify that SPB160N04S203CTMA1 is sourced from the original manufacturer or authorized distributors?

All SPB160N04S203CTMA1 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 SPB160N04S203CTMA1 meets industry standards.

7.What is the process for return or replacement of SPB160N04S203CTMA1?

All SPB160N04S203CTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with SPB160N04S203CTMA1, 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 SPB160N04S203CTMA1 part is unused and in its original packaging.

Return procedure for SPB160N04S203CTMA1:

1.Submit a request within 90 days.

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

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