ERA-21SM+ footprint, schematic symbol and 3D model by Mini-Circuits

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PCB Footprints

ERA-21SM+ - Mini-Circuits PCB footprint - Other - Other - WW107_2021

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Datasheet Download Datasheet
Stock & Prices Price & Stock for ERA-21SM+
Part Number ERA-21SM+
Manufacturer Mini-Circuits
Pin Count 4
Part Category Integrated Circuit
Package Category Other
Footprint Name Other - WW107_2021
Released Date Mar 31, 2021
Last Modified Date Mar 7, 2023 4:10 PM UTC
Pinout / Pin List Click Here (Member Only)

ERA-21SM+ Details

Manufacturer Part Number:
ERA-21SM+
Pbfree Code:
Yes
Rohs Code:
Yes
Part Life Cycle Code:
Active
Package Description:
ROHS COMPLIANT, PLASTIC, CASE WW107, 4 PIN
ECCN Code:
EAR99
Manufacturer:
Mini-Circuits
YTEOL:
6.83
Additional Feature:
USABLE TO 10 GHZ
Characteristic Impedance:
50 Ω
Construction:
COMPONENT
Gain:
11.2 dB
Input Power-Max (CW):
15 dBm
JESD-609 Code:
e2
Mounting Feature:
SURFACE MOUNT
Number of Functions:
1
Number of Terminals:
4
Operating Frequency-Max:
8000 MHz
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-45 °C
Package Body Material:
PLASTIC/EPOXY
Package Equivalence Code:
SL,4GW-LD,.085CIR
Power Supplies:
3 V
RF/Microwave Device Type:
WIDE BAND LOW POWER
Supply Current-Max:
40 mA
Surface Mount:
YES
Terminal Finish:
Tin/Silver (Sn/Ag) - with Nickel (Ni) barrier
VSWR-Max:
1.9

ERA-21SM+ Frequently Asked Questions (FAQs)

Mini-Circuits recommends a 4-layer PCB with a solid ground plane, and a via-stitched ground plane around the amplifier. The input and output traces should be kept short and away from the edges of the board. A decoupling capacitor (e.g. 100nF) should be placed close to the amplifier's power pins.
To achieve the best noise figure performance, ensure that the input is properly matched to 50 ohms, and the amplifier is operated within its recommended operating conditions (e.g. Vcc = 12V, Icc = 120mA). Additionally, use a high-quality, low-noise power supply and keep the amplifier away from noise sources.
The ERA-21SM+ can handle input powers up to +10dBm without damage. However, for optimal performance and to avoid compression, it's recommended to keep the input power below +5dBm.
Yes, the ERA-21SM+ can be used in a push-pull configuration to achieve higher output power and improved linearity. However, this requires careful design and layout to ensure proper phasing and impedance matching.
Common issues like oscillation or instability can be caused by poor PCB layout, inadequate decoupling, or improper input/output matching. Check the PCB layout, ensure proper decoupling, and verify that the input and output are properly matched to 50 ohms. If the issue persists, consult the Mini-Circuits application note AN-60-014 for troubleshooting guidelines.

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ERA-21SM+ Overview

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About Mini-Circuits

Mini-Circuits is a global leader in the design, manufacturing, and distribution of RF and microwave components and systems. The company's product portfolio includes a vast array of components such as amplifiers, mixers, splitters, couplers, filters, switches, and attenuators, among others. These components cover frequency ranges from DC to 65 GHz and beyond, serving applications in wireless communication, satellite communication, radar systems, test and measurement equipment, medical devices, and more.

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