Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
ADC-15-4+
Mini-Circuits
RF DIR COUPLER 5MHZ-1GHZ 6SMD
2198 Pcs New Original In Stock
RF Directional Coupler General Purpose 5MHz ~ 1GHz 15.5 ± 0.5dB 1W 6-SMD, Flat Leads
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (403 Ratings)
ADC-15-4+
Product Overview
9833268
DiGi Electronics Part Number
ADC-15-4+-DGManufacturer
Mini-Circuits
ADC-15-4+
Description
RF DIR COUPLER 5MHZ-1GHZ 6SMDInventory
2198 Pcs New Original In Stock
RF Directional Coupler General Purpose 5MHz ~ 1GHz 15.5 ± 0.5dB 1W 6-SMD, Flat Leads
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
Global Shipping & Secure Packaging
Worldwide Delivery in 3-5 Business Days
100% ESD Anti-Static Packaging
Real-Time Tracking for Every Order
Secure & Flexible Payment
Credit Card, VISA, MasterCard, PayPal, Western Union, Telegraphic Transfer(T/T) and more
All payments encrypted for security
ADC-15-4+ Technical Specifications
Category
RF Directional Coupler
Packaging
Tape & Reel (TR)
Series
-
Product Status
Active
Coupler Type
Standard
Frequency
5MHz ~ 1GHz
Coupling Factor
15.5 ± 0.5dB
Applications
General Purpose
Insertion Loss
-
Power - Max
1W
Isolation
-
Return Loss
35.16dB
Package / Case
6-SMD, Flat Leads
Supplier Device Package
-
Datasheet & Documents
HTML Datasheet
ADC-15-4+-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
ECCN
EAR99
HTSUS
8525.50.3035
Additional Information
Other Names
3157-ADC-15-4+CT
3157-ADC-15-4+TR
3157-ADC-15-4+DKR
Standard Package
1,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
I am happy with the environmentally friendly packaging, which was both effective and responsible.
de desembre 02, 2025
I rely on DiGi Electronics for my gaming equipment because of their consistent product quality and affordability.
de desembre 02, 2025
The packaging is not only sturdy but also aesthetically pleasing, which shows their dedication.
de desembre 02, 2025
The packaging design is both functional and environmentally conscious.
de desembre 02, 2025
Always impressed with their quick and friendly after-sales assistance.
de desembre 02, 2025
Shipping speed is unmatched, and the robustness of their items keeps me coming back.
de desembre 02, 2025
The well-protected packaging reduces the risk of damage during transit.
de desembre 02, 2025
Speedy delivery and attentive customer care—they truly value their customers.
de desembre 02, 2025
I trust DiGi Electronics for their reliable solutions and friendly service.
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
What are the key design-in risks when using the ADC-15-4+ in a high-temperature RF environment above 70°C?
When integrating the ADC-15-4+ into systems operating above 70°C, thermal derating of the 1W maximum power rating becomes critical. Although the device is rated for 1W under normal conditions, prolonged exposure to elevated temperatures—especially in densely packed RF layouts—can lead to thermal overstress and reduced coupling accuracy. Ensure adequate copper thermal relief and avoid placing the ADC-15-4+ near high-dissipation components. Monitor VSWR under load to prevent localized heating due to mismatched impedances, which the ADC-15-4+ may inadvertently exacerbate if system return loss falls below its specified 35.16dB.
How does the ADC-15-4+ compare to the Analog Devices ADL5920 in RF power detection applications requiring directional coupling below 100MHz?
The ADC-15-4+ offers a simpler passive directional coupling solution from 5MHz to 1GHz with a fixed 15.5 ± 0.5dB coupling factor, making it suitable for low-cost, fixed-gain monitoring. In contrast, the ADL5920 integrates an active RMS detector and directional bridge, enabling direct RF power measurement without external detectors. For sub-100MHz designs needing digital output or dynamic range beyond 40dB, the ADL5920 is superior, but for analog-based systems where signal isolation and minimal power consumption are key, the ADC-15-4+ provides lower insertion perturbation and better compatibility with discrete detector stages. Use ADC-15-4+ when you need a passive, calibrated coupling path without introducing active device noise or bandwidth limitations.
Can the ADC-15-4+ be reliably used as a drop-in replacement for the discontinued PIC7231-15 in a 400MHz ISM band transmitter monitor circuit?
The ADC-15-4+ can serve as a functional replacement for the PIC7231-15 in 400MHz ISM band applications, but critical verification is required. Both devices specify ~15dB coupling, but the ADC-15-4+ offers tighter coupling tolerance (±0.5dB vs. ±1dB) and superior return loss (35.16dB vs. ~30dB). However, the pinout and 6-SMD flat-lead footprint differ significantly—redesign of the PCB layout is necessary. Additionally, confirm that the system's peak RF envelope power stays below 1W RMS, as exceeding this may cause nonlinear behavior or long-term reliability degradation in the ADC-15-4+ even if average power appears acceptable.
What PCB layout techniques should be followed to maintain the specified directivity and return loss of the ADC-15-4+ in a compact 5G backhaul radio module?
To preserve the ADC-15-4+'s 35.16dB return loss and effective directivity in a space-constrained 5G backhaul module, implement symmetrical microstrip transmission lines using controlled impedance routing (typically 50Ω). Maintain at least 3x trace width clearance around the ADC-15-4+ landing pattern to reduce parasitic capacitance. Use ground vias within 1mm of each RF pad to minimize ground inductance, and avoid stubs or tees near the coupler's coupled and isolated ports. Additionally, route the coupled port to a high-impedance detector (e.g., diode detector) with minimal trace length to prevent reradiation and signal leakage that could degrade directional performance. Always reference the Mini-Circuits recommended land pattern for the ADC-15-4+ to ensure reliable solder joint formation and thermal stability.
What are the long-term reliability concerns when deploying the ADC-15-4+ in outdoor telecom infrastructure exposed to humidity and temperature cycling?
While the ADC-15-4+ is MSL1 rated and RoHS3 compliant, ensuring intrinsic moisture resistance, long-term deployment in outdoor telecom environments requires careful system-level protection. The flat-lead SMD package lacks hermetic sealing, so exposure to condensation or corrosive gases can lead to trace oxidation or solder joint fatigue over thermal cycles. To mitigate risks, encapsulate the ADC-15-4+ with a conformal coating compatible with high-frequency performance (e.g., silicone or parylene). Avoid sharp RF signal transitions that increase E-field density at package edges, accelerating surface leakage. Additionally, include periodic VSWR self-diagnostics in the system firmware to detect early degradation in the ADC-15-4+'s coupling or return loss characteristics due to environmental aging.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
ADC-15-4+ CAD Models
Mini-Circuits ADC-15-4+ PCB symbols & footprints
productDetail
