ZFBT-282-1.5A+ SMA RF Microwave DC Bias Device | Mini-Circuits
Product Overview
The ZFBT-282-1.5A+ is a high-performance RF/microwave bias device engineered to address critical signal path requirements in sophisticated RF designs. Designed for seamless integration into circuits demanding simultaneous DC power injection and RF signal isolation, this component operates seamlessly across an exceptionally broad frequency spectrum from 10 MHz to 2800 MHz.
Core Functionality
- DC Power Injection: Allows the application of bias DC voltage (up to
+15V for normal operation and -12V for survival rating) at the DC port to a powered RF component (such as an amplifier or active mixer) placed inline on the RF OUTPUT port.
- Isolation:** Effectively isolates the highly sensitive RF signal flow (present at the RF INPUT port) from the connected DC power source, preventing signal leakage and interference.
Key Technical Features & Advantages
- Broadband DC Port: Enables the introduction of DC bias (
Vcc) of up to +15V directly onto the center path. Maximum rated DC current is 1.5A.
- DC Blocking: The RF INPUT port inherently blocks DC voltages. A high-frequency DC block capacitor (> 50 pF effective, > 200 pF nominal) ensures DC does not leak back towards the RF source or sensitive receiver when connected to the INPUT.
- RF Protection: The DC port incorporates RF isolation, minimizing the influence of RF signals on the connected DC power supply circuitry. This protection is critical for stable DC sourcing, particularly when handling pulsed RF signals.
- Wide Frequency Range (10 MHz - 2800 MHz): Provides reliable performance over its entire specified bandwidth, making it suitable for diverse applications Handling:** Capable of handling continuous RF input power levels up to
+30 dBm (1 Watt) across most of its operating band.
- High Isolation: Features an isolation rating of 20 dB (min) between the RF INPUT and the DC port over the entire band.
- Minimal RF Insertion Loss: Exhibits low insertion loss (typ.
0.5 dB @ 1 GHz, 1.5 dB @ 2.8 GHz after DC bias adder subtraction), preserving signal integrity throughout the transmission path.
- **Robust69-15) for reliable connectivity and compatibility with test equipment.
- Compact Design: Encased in a durable, surface-mountable, shielded metal housing measuring just
0.5 x 0.5 x 02" (LxWxH), ideal for space-constrained assemblies on ceramic-filled PTFE substrate.
- Temperature Stability: Guaranteed operational performance across an ambient temperature range of
-40°C to +85°C.
Target Applications
The ZFBT-282-1.5A+ is indispensable for RF system designers requiring precise DC biasing for active devices on a signal transmission line without compromising RF integrity. Key applications include:
- Feeding DC power to MMIC amplifiers, Active Mixers, or PHEMT devices within RF chains.
- Adding bias in phased array antenna systems, transceivers, and signal distribution networks.
- Enabling control voltage application for bias-tunable components.
- Essential element in RF instrumentation and prototyping setups.
- Loading conditions optimization through synthesized dynamic impedance by mixing RF with bias current elements
| Feature | Specification | | :------------------- | :----------------------------- | | Frequency Range | 10 MHz - 2800 MHz | | Operation Voltage| +15V Normal, -12V Survival | | Max DC Current | 1.5A | | Power Handling | +30 dBm CW | | Isolation (ISO) | 20 dB min | | Insertion Loss (Loss) | See datasheet/< 1.5 dB typ. | | Connectors | SMA (IEC 60169-15) | | Package | 0.5" x 0.5 0.2" Metal case | | Temp. Range | -40°C to +85°C |
Why Choose the ZFBT-282-1.5A+?
Engineered and manufactured by Mini-Circuits, a global leader in RF components, the ZFBT-282-1.5A+ stands proven design, verified performance data, and adherence to strict quality standards ensure it will deliver consistent results and enhance the performance of your RF/microwave system through optimized biasing configuration the ZFBT-282-1.5A+ for assured quality and performance.**
Name: RF microwave bias
Brand: Mini-Circuits
Model: ZFBT-282-1.5A+
Frequency: 10-2800MHz
Connector: SMA
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