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SG117 is a GaAs pHEMT broadband amplifier designed for general-purpose wideband RF amplification from DC to 3.5 GHz. Combining high gain, low noise, high linearity and unconditional stability in a compact 6-pin package, SG117 is suitable for RF front ends, buffer amplifiers and gain stages in wireless, broadband and satellite communication systems. Its single 5 V supply and compact SOT-363 form factor help simplify integration into space-constrained RF designs.

SANLAND SG117 broadband RF gain block amplifier architecture showing RF input and output, DC blocking capacitors, 5V bias, RFC bias feed, Pin 6 RF input, Pin 3 RF output/VCC, and SOT-363 package

 Pin Assignment & Package

SG117 SOT-363 RF gain block amplifier pin assignment showing VCC, RF input, RF output/VCC and ground pins

Pin	Function	Description
1	VCC	Bias voltage for input gate
2, 4, 5	GND	GND
3	RF OUT / VCC	RF output; apply VCC through RF choke; DC blocking capacitor required
6	RF IN	RF input; DC blocking capacitor required

Body Size: 2.2 × 1.35 × 1.1 mm Max.

The compact 6-pin SOT-363 package makes SG117 suitable for broadband MMIC amplifier designs where PCB space is limited.

Legacy RF design evaluation

Evaluating an Alternative to BGA2866 or BGA2867?

SG117 is a 5 V, SOT-363 broadband RF amplifier covering DC to 3.5 GHz. It can be considered for engineering evaluation in selected legacy BGA2866 and BGA2867 designs. The required gain, noise figure, output performance and existing bias circuit should be reviewed for the intended application.

DC–3.5 GHz 5 V supply SOT-363 package

NXP reference part

BGA2866 designs

NXP specifies 23.9 dB typical gain at 950 MHz. SG117 is listed at 24.5 dB at 1 GHz. Use these as starting points and compare the gain response over your actual frequency band.

Current check: 17.4 mA for BGA2866 versus 25 mA typical for SG117, both at 5 V.

NXP reference part

BGA2867 designs

NXP specifies 27.1 dB typical gain at 950 MHz. SG117 is listed at 24.5 dB at 1 GHz. Check whether the available system gain margin meets your requirements.

Current check: 21.7 mA for BGA2867 versus 25 mA typical for SG117, both at 5 V.

Published typical values above use different test frequencies and evaluation conditions. Compare devices at the same frequencies in the intended circuit.

Critical check: output bias circuit

SG117 uses pin 3 for RF OUT / VCC and requires an RF choke for output bias. BGA2866 and BGA2867 list pin 3 as RF_OUT and do not require an output inductor. Review the PCB connections, bias components and DC blocking capacitors before evaluating a substitution.

What to verify in your design

RF performanceGain, NF, P1dB and OIP3 across the operating band.

Circuit and supplyOutput bias, DC blocking, current budget and thermal margin.

Sourcing needsQualification timeline and estimated annual demand.

Request a cross-reference review

Send your original part number, frequency range, target gain/NF, linearity requirements, schematic or BOM (if available), and annual quantity to the SANLAND engineering team.

Request a Cross-Reference Review

 Frequently Asked Questions

What is the operating frequency range of SG117?

SG117 is designed for broadband RF amplification from DC to 3.5 GHz.

What supply voltage does SG117 require?

SG117 is a 5 V RF gain block amplifier with a typical quiescent current of 25 mA, making it suitable for compact and low-current RF designs.

What package does SG117 use?

SG117 is supplied in a compact 6-pin SOT-363 package suitable for space-constrained RF designs.

What applications is SG117 designed for?

SG117 can be used in broadband RF gain stages for wireless communications, ISM and WLAN systems, DBS/TVRO, RF front ends, buffer amplifiers and tuner applications.

Can SG117 be evaluated for legacy broadband MMIC designs?

Yes. SG117 may be considered for engineering evaluation when migrating from selected legacy SOT-363 broadband MMIC gain blocks, including NXP BGA2866, BGA2867 and BGA2869. Circuit configuration, bias network, gain requirements and RF performance should be independently verified for each application.

SG117 / RF SPECIFICATIONS

RF Performance

Parameter	Typical Value	Test Condition
Frequency Range	DC–3.5 GHz	—
Gain	24.5 dB	@ 1 GHz
Noise Figure	2.7 dB	@ 1 GHz
OIP3	+21 dBm	@ 1 GHz
Output P1dB	+10 dBm	@ 1 GHz
S11	–14 dB	@ 2.5 GHz
S22	–12 dB	@ 2.5 GHz
S12	–32 dB	@ 2.5 GHz
Supply Voltage	5 V	—
Supply Current	25 mA Typ.	—
System Impedance	50 Ω	Test condition
Package	SOT-363	6-pin

TEST BASIS

Typical RF performance is characterized in a 50 Ω system with a 5 V supply, providing reference data for broadband gain block selection and RF design.

SG117 / MEASURED CURVES

Typical RF Performance vs. Frequency

SG117 S21 versus frequency curve showing broadband forward transmission performance from 0 to 4 GHz, with S21 values of 24.828 dB at 1 GHz, 26.196 dB at 2 GHz, 24.264 dB at 3 GHz and 18.634 dB at 4 GHz — 01 **S21** Forward transmission

SG117 RF gain block noise figure versus frequency curve showing NF performance across the broadband operating range — 02 **Noise Figure** Noise response

SG117 RF gain block output P1dB versus frequency curve showing output compression performance across the operating frequency range — 03 **Output P1dB** Output compression

SG117 RF gain block OIP3 versus frequency curve showing third-order intercept performance across the broadband operating range — 04 **OIP3** Linearity response

SG117 DC–3.5 GHz RF gain block applications for wireless communications, ISM/WLAN, RF buffering, satellite receivers, LNB and TV tuner systems

SG117 can be used as a broadband RF buffer amplifier and MMIC gain block for RF front-end applications, including wireless communications, ISM/WLAN systems, satellite receivers, LNBs and TV tuners. Its DC–3.5 GHz broadband response supports general-purpose RF gain and buffering across a wide range of signal chains.

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