Infineon Technologies SPB18P06P

Overview

SPB18P06P from Infineon Technologies is a P-channel enhancement-mode SIPMOS® power MOSFET rated for -60 V drain-source voltage, 18.6 A continuous drain current at T_A=25 °C, and 130 mΩ maximum R_DS(on) at V_GS=−10 V. It features avalanche rating, dv/dt ruggedness, and 175 °C maximum junction temperature-designed for high-reliability DC-DC converter high-side switches and motor control H-bridge legs.

For engineers reviewing the SPB18P06P datasheet, SPB18P06P pinout, SPB18P06P application, or SPB18P06P equivalent, key selection criteria include its −60 V V_(BR)DSS, 130 mΩ R_DS(on) at −10 V gate drive, 175 °C T_jmax, avalanche energy rating (E_AS = 81.1 mJ), and PG-TO263-3 surface-mount package with isolated drain tab.

Technical Context

This device operates as a normally-off P-channel MOSFET requiring negative gate-to-source voltage for conduction. Its static characteristics are defined by V_GS(th) = −2.1 to −4 V (typ −3 V), R_DS(on) = 101–130 mΩ at I_D = −13.2 A, and V_(BR)DSS = −60 V with <1 µA leakage at 25 °C.

Dynamic behavior includes C_iss = 690–860 pF, Q_g = −21 to −28 nC, t_r = 5.8–8.7 ns, and t_f = 11–16.5 ns under standard switching conditions (V_DD = −48 V, R_G = 2.7 Ω). The integrated body diode supports reverse recovery (t_rr = 70–105 ns, Q_rr = 139–208 nC).

Key Specifications

Pinout & Package

SPB18P06P uses the PG-TO263-3 (D²PAK) package with isolated drain tab, optimized for surface-mount thermal performance on FR4 PCBs with ≥6 cm² copper area. Pin 1 = Gate, Pin 2 = Source, Pin 3 = Drain (exposed pad, electrically connected to drain).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar P-channel power MOSFET applications.

Compared with IPB18P06P and IRF4905PBF, SPB18P06P provides the best balance of low R_DS(on), automotive qualification, dv/dt immunity, and compact 3-pin D²PAK footprint-making it preferred for new high-reliability 48 V system designs where board space and transient robustness are critical.

Availability

SPB18P06P is available at Aetrix Electronics and suitable for automotive body control modules, industrial 48 V DC-DC converters, and brushed DC motor H-bridges requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.

Supply support for SPB18P06P 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 and discrete devices.

The SIPMOS® product line delivers high-voltage, high-current P- and N-channel MOSFETs engineered for ruggedness, efficiency, and qualification in automotive and industrial power conversion systems.

FAQ

Is SPB18P06P suitable for high-side switching in 48 V automotive systems?

Yes. Its −60 V V_(BR)DSS, 175 °C T_jmax, AEC-Q101 qualification, and 81.1 mJ avalanche rating make it explicitly designed for 48 V automotive high-side loads such as lighting and pumps. The device withstands load-dump transients up to ISO 7637-2 Pulse 5a (−110 V) when properly clamped and heatsinked.

What is the recommended gate resistor value for SPB18P06P in a 200 kHz half-bridge application?

For 200 kHz operation with minimal overshoot and EMI, a 2.7 Ω gate resistor is validated per the datasheet's dynamic test conditions. This value balances switching speed (t_r/t_f ≈ 7/14 ns) and gate driver stress. Lower values increase dV/dt and risk ringing; higher values raise switching losses above 0.5 W per transition at full load.

Does SPB18P06P require a negative gate driver supply?

No-only a negative gate-to-source voltage relative to the source node. In high-side configuration, the source floats at the input rail (e.g., +48 V), so the gate must be driven to ~+38 V to achieve V_GS = −10 V. This is accomplished using a bootstrap or isolated gate driver-not a separate negative supply rail.

How does the body diode performance compare to discrete Schottky alternatives?

The integrated body diode has V_SD = −0.99 to −1.33 V at I_F = 18.6 A and t_rr = 70–105 ns. While less efficient than a 45 V Schottky (V_F ≈ 0.5 V), its monolithic integration eliminates layout parasitics and enables synchronous rectification without external diode routing-critical for compact H-bridge and OR-ing designs.