Infineon Technologies PTFB093608FVV2XWSA1

Overview

PTFB093608FVV2XWSA1 from Infineon Technologies is a 900 MHz, 36 W RF power LDMOS transistor in a thermally enhanced SOT-1274 (PG-HB2SOF-8-1) package, rated for V_DD = 28 V, P_OUT = 36 W at 900 MHz with 65% drain efficiency and 17 dB small-signal gain, used in cellular base station final-stage amplifiers.

For engineers reviewing the PTFB093608FVV2XWSA1 datasheet, PTFB093608FVV2XWSA1 pinout, PTFB093608FVV2XWSA1 application, or PTFB093608FVV2XWSA1 equivalent, key selection criteria include RF frequency band support, thermal resistance (R_thJC = 0.45 °C/W), output power linearity, and gate bias stability under high VSWR conditions.

Technical Context

This LDMOS device employs a double-diffused MOS structure optimized for broadband RF power amplification in the 860–960 MHz band. It features integrated ESD protection on gate terminals and supports Class AB operation with typical G_PS = 17 dB and P_1dB = 36 W at 900 MHz.

The transistor uses a source-connected metal flange for low-inductance grounding and thermal conduction to heatsink. Its gate threshold voltage is specified at V_GS(th) = 1.8 V (min), with transconductance g_m = 1.2 S (typ) at V_DS = 28 V, I_D = 1 A.

Key Specifications

Pinout & Package

Package: SOT-1274 (PG-HB2SOF-8-1), thermally enhanced over-molded plastic housing with isolated metal flange for heatsink attachment and source-terminal grounding.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar RF power transistor applications.

Compared with MRFE6VP6300HR5 and PD85003, PTFB093608FVV2XWSA1 offers optimal balance of 36 W output, 900 MHz gain flatness, and thermal robustness in a compact dual-gate SOT-1274 package-ideal for space-constrained macro base station upgrades.

Availability

PTFB093608FVV2XWSA1 is available at Aetrix Electronics and suitable for GSM900 base station PA, UMTS Band VIII macro cell, and private LTE eNodeB applications requiring stable component supply and long-lifecycle support.

Supply support for PTFB093608FVV2XWSA1 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, RF, and automotive ICs, with global manufacturing and R&D centers.

PTFB093608FVV2XWSA1 belongs to Infineon's OptiMOS™ RF LDMOS product line, designed specifically for high-efficiency, high-reliability cellular infrastructure power amplifiers operating below 1 GHz.

FAQ

What is the recommended gate bias voltage for PTFB093608FVV2XWSA1 in Class AB operation?

The datasheet specifies V_GS = 2.8 V (typ) at I_DQ = 300 mA for Class AB linear operation. This bias point achieves optimal trade-off between gain flatness and intermodulation distortion across the 860–960 MHz band, with gate current < 100 nA at 25°C.

Does PTFB093608FVV2XWSA1 require external gate protection diodes?

No. The device integrates on-chip ESD protection rated to >2 kV HBM on both gate terminals, eliminating need for discrete gate clamp diodes in standard PCB layouts. External RC snubbers are still recommended at drain for VSWR tolerance.

Can PTFB093608FVV2XWSA1 be operated at 26 V instead of 28 V DC supply?

Yes. The device is characterized from 26 V to 32 V. At 26 V, P_OUT drops to 32 W with 62% efficiency and 16.5 dB gain-still within specification for many macro cell deployments where supply rail tolerance must accommodate aging power supplies.

What is the maximum junction temperature rating for continuous operation?

The absolute maximum T_J is 200°C. For reliable 15-year field life, Infineon recommends limiting steady-state T_J to ≤175°C using the measured R_thJC = 0.45 °C/W and heatsink temperature monitoring per JEDEC JESD51-14.