GP2S1+ - 2-Way MMIC Power Splitter/Combiner, 500-2500 MHz | Mini-Circuits
N.º de pieza: GP2S1+ ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $1.49 | $1,49 |
| 10 | $1.34 | $13,40 |
| 100 | $1.19 | $119,00 |
| 500 | $1.05 | $525,00 |
| 1.000 | $0.95 | $950,00 |
GP2S1+ Descripción general
A power splitter/combiner is a passive RF component that divides an input signal into two equal-amplitude, equal-phase outputs (splitter mode) or, conversely, combines two coherent inputs into a single output (combiner mode). Within the RF component taxonomy, GP2S1+ sits under the Wilkinson family of splitters, implemented here in MMIC form for repeatable, surface-mount manufacturing, sitting inside the broader hierarchy of passive RF components -> signal conditioning -> splitter/combiner.
Key features include a wide 500 MHz to 2.5 GHz bandwidth covering major cellular (LTE/5G sub-6 GHz mid-bands), ISM, and Wi-Fi 2.4 GHz bands; 1.8 dB typical insertion loss; excellent amplitude and phase balance; DC pass on all ports; and a low-profile 3x3 mm case. Internal dissipation and input power handling are specified for safe operation as both splitter and combiner.
The device uses a resistive-divider/lumped-element MMIC topology rather than a traditional microstrip Wilkinson, which yields its compact DQ1225 case, repeatable S-parameters across production lots, and easy integration into standard SMT reflow lines. The exposed pad provides the necessary thermal path and low-inductance ground for the upper GHz region.
Typical applications include in-building DAS (distributed antenna systems) for cellular/LTE, MIMO reference signal distribution, Wi-Fi 2.4 GHz access-point signal chains, test-and-measurement setups needing a wideband splitter, and software-defined radio front-ends. Anywhere a balanced 1-to-2 fan-out is needed between 500 MHz and 2.5 GHz, GP2S1+ is a strong fit.
When designing with this part, observe the absolute maximum input power ratings in the datasheet, keep the DC pass current below the limit when biasing downstream LNAs or filters, and provide a continuous ground plane tied to the exposed pad to preserve VSWR and isolation performance.
This page combines verified distributor pricing, drop-in pin-compatible alternatives, and practical design notes that go beyond the manufacturer datasheet to help RF engineers select and place GP2S1+ with confidence.
Alternativas directas para GP2S1+ — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con GP2S1+ (mismo factor de forma y huella) — difiere en Function, Operating Temperature.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
GP2S1A+
✅ Sustitución directa✓ En stock
$3.7 / unidad
Ver hoja de datos →GP2S1
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
GP2S1+TR
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
GP2S1+TB
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
GP2S1+ Especificaciones (publicadas por el fabricante)
| Función | 2-Way Power Splitter / Combiner (0°) |
| Frequency Range | 500 MHz to 2500 MHz |
| Impedance | 50 Ω |
| Insertion Loss (Typ) | 1.8 dB |
| Isolation (Min) | 9 dB |
| VSWR (Max) | 1.3 |
| Phase Imbalance (Max) | 5° |
| Amplitude Unbalance (Typ) | 0.1 dB |
| DC Pass | Yes (input-to-output, all ports) |
| Number of Ways | 2 |
| Maximum Input Power (as splitter) | +31.76 dBm (1.5 W) per datasheet |
| Temperatura de funcionamiento | -40°C to +85°C |
| Package / Case Style | DQ1225, 12-pin VQFN with exposed pad |
| Package Size | 3 x 3 mm |
| Tipo de montaje | Surface Mount |
| RoHS | Compliant (RoHS3) |
| Nivel MSL | 1 (Unlimited floor life) |
| Topología | MMIC lumped-element splitter/combiner |
Configuración de pines de GP2S1+
| Pin 1 | GND — Ground (also tied to exposed pad) |
| Pin 2 | GND — Ground |
| Pin 3 | IN — Common RF input (also DC pass) |
| Pin 4 | GND — Ground |
| Pin 5 | GND — Ground |
| Pin 6 | OUT1 — RF output 1 (also DC pass) |
| Pin 7 | GND — Ground |
| Pin 8 | GND — Ground |
| Pin 9 | OUT2 — RF output 2 (also DC pass) |
| Pin 10 | GND — Ground |
| Pin 11 | GND — Ground |
| Pin 12 | GND — Ground |
Características de potencia y térmicas
| Temperatura de funcionamiento | -40°C to +85°C |
Parámetros de entrada de potencia y térmicos para GP2S1+ según lo publicado por el fabricante.
Aplicaciones típicas
GP2S1+ es adecuado para 6 aplicacións: In-Building Cellular DAS Signal Distribution, Wi-Fi 2.4 GHz Access Point RF Chains, Software Defined Radio Front-End Signal Splitting, MIMO Reference Signal Distribution in Small Cells, Test & Measurement Power Splitter for Bench Setup, Bias Tee Replacement for Remote LNA Powering.
In-Building Cellular DAS Signal Distribution
The GP2S1+ is well suited to in-building distributed antenna system (DAS) head-end nodes where a single donor or small-cell feed is split to feed two coverage antennas. Its 500-2500 MHz range covers the dominant LTE bands (Bands 2, 3, 4, 7, 12, 13) and sub-6 GHz 5G mid-band, while 9 dB minimum isolation keeps inter-branch coupling low enough to avoid pattern shifts when one branch is faulted. The 1.8 dB typical insertion loss is acceptable for short cable runs, and the DC pass allows biasing of remote antennas or tower-top boosters from the head-end.
Recomendado
Wi-Fi 2.4 GHz Access Point RF Chains
In 802.11b/g/n/ax 2.4 GHz access points the GP2S1+ can split a single radio chain into two antenna feeds for simple 2x2 MIMO configurations, or combine two receive paths into one. Its 1.3 maximum VSWR preserves the noise figure of the LNA that follows, and the 5° max phase imbalance is tight enough to keep beamforming calibration tables accurate. The 3x3 mm DQ1225 package fits inside even the smallest consumer-grade AP PCBs and reflows on standard SMT lines.
Recomendado
Software Defined Radio Front-End Signal Splitting
For SDR and test-and-measurement front-ends, the GP2S1+ can fan-out a single signal source to two receiver chains (e.g., one for spectrum monitoring, one for demodulation) or combine two receive antennas into one SDR input. Its 1.8 dB insertion loss and 9 dB isolation maintain signal integrity across the 500-2500 MHz span, while DC pass enables biasing of remote LNAs or pre-selectors directly from the SDR base board. The wide bandwidth also means a single part covers HF upconverters through 2.4 GHz ISM bands.
Recomendado
MIMO Reference Signal Distribution in Small Cells
Small-cell base stations often require equal split of calibration or reference signals between transmit chains. The GP2S1+'s 5° max phase imbalance and 0.1 dB amplitude unbalance preserve the relative weighting of MIMO paths, which is critical for beam-steering accuracy. The 12-VQFN DQ1225 footprint lands directly under a chip-scale shield, simplifying RF routing and shielding between the digital baseband and the antenna interface.
Recomendado
Test & Measurement Power Splitter for Bench Setup
The GP2S1+ is a practical bench tool for splitting a single signal generator output into two paths - one to drive a device-under-test and one to feed a reference channel of a vector network analyzer or oscilloscope. Its 500-2500 MHz coverage handles most wireless standards (cellular, Wi-Fi, Bluetooth, Zigbee, sub-GHz ISM), and the 9 dB isolation prevents load mismatch in one branch from disturbing the other. The DC pass simplifies biasing active fixtures without extra bias tees.
Recomendado
Bias Tee Replacement for Remote LNA Powering
Because the GP2S1+ passes DC on all ports, it can substitute for discrete bias-tee networks in compact front-end modules where remote LNAs or filters need DC bias injected at the antenna side of the split. A single GP2S1+ replaces two bias tees in a 1-to-2 fan-out, saving PCB space and BOM cost. The wide 500-2500 MHz band supports both cellular mid-band and 2.4 GHz ISM LNAs from the same bias distribution network.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para GP2S1+ — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | GP2S1A+ | GP2S1 | GP2S1+TR | GP2S1+TB |
|---|---|---|---|---|---|
| Brand | Mini-Circuits | Mini-Circuits | Mini-Circuits | Mini-Circuits | Mini-Circuits |
| Package | DQ1225, 12-VQFN (3x3 mm) | DQ1225, 12-VQFN (3x3 mm) - same | DQ1225, 12-VQFN (3x3 mm) - same | DQ1225, 12-VQFN (3x3 mm) - same | DQ1225, 12-VQFN (3x3 mm) - same |
| Frequency Range | 500 MHz to 2500 MHz | 500 MHz to 2500 MHz | 500 MHz to 2500 MHz | 500 MHz to 2500 MHz | 500 MHz to 2500 MHz |
| Maximum Input Power (Splitter) | +31.76 dBm (1.5 W) | +40 dBm (10 W) - HIGHER | +31.76 dBm (1.5 W) | +31.76 dBm (1.5 W) | +31.76 dBm (1.5 W) |
| Isolation (Min) | 9 dB | 9 dB | 9 dB | 9 dB | 9 dB |
| VSWR (Max) | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 |
| DC Pass | Yes | Yes | Yes | Yes | Yes |
| RoHS | Compliant (RoHS3) | Compliant (RoHS3) | Non-RoHS (legacy) | Compliant (RoHS3) | Compliant (RoHS3) |
Diferenciadores clave
- Miniaturized 3x3 mm VQFN with DC pass (frente a GP2S1A+ (same package, higher power))
- Manufacturer-recommended replacement available with higher power (frente a GP2S1A+ (drop-in upgrade per AN10-025))
- RoHS3 compliant + MSL1 unlimited floor life (frente a GP2S1 (non-RoHS legacy))
Notas de diseño
Solder the exposed pad of the DQ1225 case to a continuous ground plane with multiple thermal/ground vias to maintain isolation and VSWR. Split ground pours or thin trace connections under the part will degrade S-parameters, particularly S21/S31 amplitude balance. Keep RF traces to the IN/OUT1/OUT2 pads at 50 Ω controlled impedance and minimize stub length.
The DC pass paths mean that DC voltage present at the common port reaches both outputs, and vice versa. Always ensure downstream active circuitry can tolerate the bias voltage you apply, or insert DC blocking caps after the splitter outputs. Exceeding the +31.76 dBm (1.5 W) maximum splitter input power or the internal dissipation rating will damage the part.
Estimated: at maximum +31.76 dBm input (1.5 W) in combiner mode where both branches carry full power, internal dissipation can approach 0.5-0.8 W depending on phase alignment. The DQ1225 3x3 mm VQFN with a properly soldered ground pad is sufficient at room temperature; for continuous high-power combiner operation consider the GP2S1A+ upgrade (AN10-025) which raises headroom to +40 dBm.
Follow the land pattern in the Mini-Circuits datasheet exactly. Mini-Circuits provides a recommended PCB footprint that has been characterized for the 500-2500 MHz band; deviating from it (especially pad pitch or pad size) detunes the splitter and degrades VSWR. Use a 4-layer stack-up with a solid ground plane on layer 2 directly under the part for best RF performance.
Información de cumplimiento
RoHS3 compliant per Mini-Circuits product page and PartGenie listing. MSL1 unlimited floor life per PartGenie. Not AEC-Q100 qualified (not an automotive part). Lead-free and halogen-free per modern Mini-Circuits process.
