Items : %s%s
RF Amplifiers
IIP3
- 52 dBm
P1dB
- -1.8dBm
- -10 dBm
- -10dBm
- -11 dBm
- -11dBm
- -11dBm ~ -7dBm
- -12.1dBm
- -12.5dBm
- -12dBm
- -13dBm
- -14dBm
- -16dBm
- -18dBm
- -19.5dBm
- -19dBm
- -1dBm
- -2.4dBm
- -2.5dBm
- -2.6dBm
- -20dBm
- -22dBm
- -2dBm
- -3dBm
- -4dBm
- -5 dBm
- -5.5 dBm
- -5.5dBm
- -5dBm
- -6 dBm
- -6dBm
- -6dBm ~ -2dBm
- -7.4dBm
- -7.5dBm
- -7dBm
- -8.5dBm ~ -5.5dBm
- -8dBm
- -9.7dBm
- -9dBm
- 0.9dBm
- 0dBm
- 1 dBm
- 1.2dBm
- 1.5dBm
- 1.8dBm
- 1.9dBm
- 10.5dBm
- 10dBm
- 11.5dBm
- 11dBm
- 12.2dBm
- 12.3dBm
- 12.5 dBm
- 12.5dBm
- 12.7dBm
- 12.8dBm
- 12dBm
- 13 dBm
- 13.1dBm
- 13.4dBm
- 13.5dBm
- 13dBm
- 14.4dBm
- 14.5dBm
- 14.7dBm
- 14.8dBm
- 14dBm
- 15.1dBm
- 15.5dBm
- 15.8dBm
- 15dBm
- 16.1dBm
- 16.2dBm
- 16.5dB
- 16.5dBm
- 16dBm
- 17.1dBm
- 17.3dBm
- 17.4dBm
- 17.5dBm
- 17.7dBm
- 17.8dBm
- 17dBm
- 18.25dBm ~ 20.3dBm
- 18.2dBm
- 18.3dBm
- 18.4dBm
- 18.5dBm
- 18.6dBm
- 18.7 dBm
- 18.7dBm
- 18dBm
- 18dBm ~ 19.5dBm
- 19.2dBm
- 19.4 dBm
- 19.4dBm
- 19.5 dBm
- 19.5dBm
- 19.7dBm
- 19dBm
- 1dBm
- 2.2dBm
- 2.5dBm
- 2.7dBm
- 20 dBm
- 20.4dBm
- 20.5dBm
- 20.6dBm
- 20dBm
- 21 dBm
- 21.2dBm
- 21.3dBm
- 21.5dBm
- 21.7dBm
- 21dBm
- 22.2dBm
- 22.5dBm
- 22dBm
- 23.3dBm
- 23.5dBm
- 23.8dBm
- 23dBm
- 24.5dBm
- 24dBm
- 24dBm ~ 25.5dBm
- 24dBm ~ 25dBm
- 25 dBm
- 25.5 dBm
- 25.5dBm
- 25.7dBm
- 25dBm
- 26.5dBm
- 26dBm
- 27.4dBm
- 27.5dBm
- 27.7dBm
- 27dBm
- 28 dBm
- 28.25dBm
- 28.5dBm
- 28.9dBm
- 28dBm
- 29.5dBm
- 29dBm
- 2dBm
- 3.2dB
- 3.5dBm
- 30.5dBm
- 30dBm
- 31.5dBm
- 31.6dBm
- 31dBm
- 32.5dBm
- 32dBm
- 33.3dB
- 33.5dBm
- 33.9dBm
- 33dBm
- 34.4dBm
- 34.5dBm
- 34dBm
- 35.5dBm
- 35.8dBm
- 35dBm
- 36.5dBm
- 36.8dBm
- 36dBm
- 37dBm
- 39dBm
- 3dBm
- 3dBm ~ 5.5dBm
- 4.1dBm
- 4.5dBm
- 4.5dBm ~ 7dBm
- 40.4dBm
- 40.8dBm
- 40dBm
- 41.8dBm
- 43dBm
- 44.8dBm
- 44.9dBm
- 46dBm
- 47dBm
- 4dBm
- 5 dBm
- 5.5 dBm
- 5.5dBm
- 50.8dBm
- 5dBm
- 6dBm
- 7.2dBm
- 7.5 dBm
- 7.5dBm
- 7dBm
- 7dBm ~ 9.5dBm
- 8.5dBm
- 8dBm
- 9.5 dBm
- 9.5dBm
- 9.8dBm
- 9dBm
| Compare | Image | Name | Manufacturer | Pricing(USD) | Quantity | Weight(Kg) | Size(LxWxH) | Datasheet | Factory Lead Time | Lifecycle Status | Mount | Packaging | Published | Series | Pbfree Code | Part Status | Moisture Sensitivity Level (MSL) | Number of Terminations | ECCN Code | Max Operating Temperature | Min Operating Temperature | Operating Supply Voltage | RoHS Status | Lead Free | Contact Plating | Radiation Hardening | Number of Pins | Additional Feature | Package / Case | REACH SVHC | Reach Compliance Code | Frequency | Mounting Type | Technology | Operating Supply Current | Max Supply Current | Current - Supply | HTS Code | Number of Functions | Nominal Supply Current | JESD-609 Code | Terminal Finish | Peak Reflow Temperature (Cel) | Time@Peak Reflow Temperature-Max (s) | Base Part Number | Pin Count | Surface Mount | Operating Temperature (Max) | Operating Temperature (Min) | Number of Channels | Subcategory | Power Supplies | Gain | Max Power Dissipation | Characteristic Impedance | Construction | RF/Microwave Device Type | Operating Frequency-Max | Operating Frequency-Min | VSWR-Max | Input Power-Max (CW) | Test Frequency | Power Dissipation | Supplier Device Package | Source Url Status Check Date | Noise Figure | Supply Current-Max | Voltage - Supply | RF Type | P1dB |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
AMF-5F-05400590-06-15P | L3 Narda-MITEQ | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Active | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() |
HMC6981LS6TR | Analog Devices Inc. | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | download | 20 Weeks | PRODUCTION (Last Updated: 2 weeks ago) | Tape & Reel (TR) | no | Active | 3 (168 Hours) | 16 | ROHS3 Compliant | Contains Lead | 16 | 16-LCQFN Exposed Pad | 15GHz~20GHz | Surface Mount | GAAS | 1.1A | 1 | Tungsten/Nickel/Gold (W/Ni/Au) | HMC698 | 16 | YES | 85°C | -40°C | RF/Microwave Amplifiers | 6V | 27dB | WIDE BAND HIGH POWER | 6V | 33.5dBm | ||||||||||||||||||||||||||||||||||||
![]() |
HMC517LC4TR | Analog Devices Inc. | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | download | 8 Weeks | PRODUCTION (Last Updated: 1 week ago) | Surface Mount | Cut Tape (CT) | no | Active | 3 (168 Hours) | 24 | 85°C | -40°C | 3V | ROHS3 Compliant | Contains Lead | Gold | 24 | 24-TFQFN Exposed Pad | 17GHz~26GHz | Surface Mount | GAAS | 67mA | 1 | HMC517 | 24 | 1 | RF/Microwave Amplifiers | 3V | 19dB | 2.65W | 50Ohm | COMPONENT | WIDE BAND LOW POWER | 2dBm | 2.5dB | General Purpose | 13dBm | |||||||||||||||||||||||||||||
![]() |
HMC609 | Analog Devices Inc. | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | download | 12 Weeks | PRODUCTION (Last Updated: 2 weeks ago) | Bulk | no | Active | 1 (Unlimited) | EAR99 | 85°C | -55°C | 6V | ROHS3 Compliant | Contains Lead | LOW NOISE | Die | 2GHz~4GHz | Surface Mount | 170mA | HMC609 | 1 | 20.5dB | 1.64W | COMPONENT | WIDE BAND LOW POWER | 2GHz~4GHz | 3dB | General Purpose | 21dBm | |||||||||||||||||||||||||||||||||||||
![]() |
AMF-2B-10001150-47-25P-LPN | L3 Narda-MITEQ | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Active | 1 (Unlimited) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() |
LNA-30-00101800-25-10P | L3 Narda-MITEQ | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | download | 15 Weeks | LNA | Active | 1 (Unlimited) | RoHS Compliant | Module, SMA Connectors | 100MHz~18GHz | Connector Mount | 250mA | 30dB | WIDE BAND LOW POWER | 100MHz~18GHz | 2.5dB | 15V | VSAT | 10dBm | ||||||||||||||||||||||||||||||||||||||||||||||||
![]() |
JS2-01100180-08-10P | L3 Narda-MITEQ | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | download | Active | 1 (Unlimited) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() |
ADA-4543-TR1 | Broadcom | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Tape & Reel (TR) | Obsolete | 1 (Unlimited) | 4 | EAR99 | Non-RoHS Compliant | HIGH RELIABILITY | SC-82A, SOT-343 | not_compliant | 0Hz~2.5GHz | Surface Mount | BIPOLAR | 15mA | 8542.33.00.01 | 1 | e0 | Tin/Lead (Sn/Pb) | YES | RF/Microwave Amplifiers | 3.4V | 15.1dB | 50Ohm | COMPONENT | WIDE BAND LOW POWER | 1.3 | 13dBm | 900MHz | 3.7dB | 3.1V~3.8V | Cellular, PCS, WLL, WLAN | 1.9dBm | ||||||||||||||||||||||||||||||||||
![]() |
AMF-5D-00101200-23-10P | L3 Narda-MITEQ | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | download | Active | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() |
JS2-07250775-09-10P | L3 Narda-MITEQ | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | download | Active | 1 (Unlimited) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() |
HMC414MS8G | Analog Devices Inc. | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | download | Bulk | Obsolete | 1 (Unlimited) | 8 | EAR99 | Non-RoHS Compliant | 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) | not_compliant | 2.2GHz~2.8GHz | Surface Mount | GAAS | 300mA | 8542.33.00.01 | 1 | e0 | Tin/Lead (Sn/Pb) | HMC414 | YES | 85°C | -40°C | RF/Microwave Amplifiers | 3.6/5V | 20dB | 50Ohm | COMPONENT | NARROW BAND MEDIUM POWER | 17dBm | 7dB | 2.75V~5V | Bluetooth | 27dBm | |||||||||||||||||||||||||||||||||
![]() |
BGU7045,115 | NXP Semiconductors | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | download | 13 Weeks | Tape & Reel (TR) | 2010 | Active | 1 (Unlimited) | ROHS3 Compliant | 6-TSSOP, SC-88, SOT-363 | 40MHz~1GHz | Surface Mount | 34mA | 6 | 14dB | 1GHz | 2013-06-14 00:00:00 | 2.8dB | 3.1V~3.5V | General Purpose | 13dBm | ||||||||||||||||||||||||||||||||||||||||||||||
![]() |
RF2336TR7 | RFMD | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | download | Tape & Reel (TR) | 2006 | Obsolete | 1 (Unlimited) | RoHS Compliant | Lead Free | 5 | SC-74A, SOT-753 | 0Hz~3GHz | Surface Mount | 48mA | 35mA~48mA | 35mA | 16.5dB | 2GHz | SOT-23-5 | 3.8dB | 4.3V | ISM, Broadcast Television | 11.5dB | ||||||||||||||||||||||||||||||||||||||||||||
![]() |
A2I22D050NR1 | NXP Semiconductors | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | 10 Weeks | Tape & Reel (TR) | 2009 | Active | 3 (168 Hours) | EAR99 | ROHS3 Compliant | TO-270-15 Variant, Flat Leads | 1.8GHz~2.2GHz | Surface Mount | 520mA | 8542.33.00.01 | e3 | Tin (Sn) | 260 | 40 | 34dB | 1.8GHz | 24V~32V | W-CDMA | 16.5dBm | ||||||||||||||||||||||||||||||||||||||||||||
![]() |
AMF-2F-00100200-16-15P | L3 Narda-MITEQ | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Active | 1 (Unlimited) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() |
SKY65016-70LF | Skyworks Solutions Inc. | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | 12 Weeks | Tape & Reel (TR) | 2013 | yes | Active | 1 (Unlimited) | 3 | 85°C | -40°C | 3.5V | ROHS3 Compliant | No | TO-243AA | 100MHz~3GHz | Surface Mount | BIPOLAR | 120mA | 120mA | 1 | 40mA | YES | RF/Microwave Amplifiers | 20dB | 500mW | 50Ohm | COMPONENT | WIDE BAND LOW POWER | 2 | 15dBm | 3GHz | 4.8dB | 3.3V | DBS, HLAN, WLAN | 14dBm | |||||||||||||||||||||||||||||||
![]() |
HMC462 | Analog Devices Inc. | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | download | 12 Weeks | PRODUCTION (Last Updated: 2 weeks ago) | Bulk | no | Active | 1 (Unlimited) | EAR99 | 85°C | -55°C | 5V | ROHS3 Compliant | Contains Lead | LOW NOISE | Die | No SVHC | 2GHz~20GHz | Surface Mount | GAAS | 63mA | 1 | e4 | Gold (Au) | HMC462 | 1 | RF/Microwave Amplifiers | 5V | 15.5dB | 2.2W | COMPONENT | WIDE BAND LOW POWER | 2GHz~20GHz | 3dB | 84mA | VSAT | 15.5dBm | |||||||||||||||||||||||||||||
![]() |
UPC2749TB-E3-A | CEL (California Eastern Laboratories) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Surface Mount | Tape & Reel (TR) | Obsolete | 1 (Unlimited) | 85°C | -40°C | 3V | RoHS Compliant | No | 6 | 6-TSSOP, SC-88, SOT-363 | 1.9GHz | Surface Mount | 4mA~8mA | 15mA | 1 | 13dB ~ 18.5dB | 200mW | 200mW | 4dB ~ 5.5dB | 2.7V~3.3V | Cellular, GPS, PCS | -12.5dBm | ||||||||||||||||||||||||||||||||||||||||||
![]() |
JS3-19202020-18-8P | L3 Narda-MITEQ | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | download | Active | 1 (Unlimited) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() |
MAAP-011139-DIE | MACOM Technology Solutions | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | download | 14 Weeks | Tray | 2015 | Active | 1 (Unlimited) | 85°C | -40°C | 6V | ROHS3 Compliant | Die | 29GHz~31GHz | Surface Mount | 2A | 24dB | 30GHz | VSAT | 36.5dBm | |||||||||||||||||||||||||||||||||||||||||||||||
![]() |
AFS33-12002600-32-5P-44 | L3 Narda-MITEQ | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Active | 1 (Unlimited) | 32 dB | COAXIAL | WIDE BAND LOW POWER | 26000MHz | 12000MHz | 2.5 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() |
AMF-5F-12001800-40-23P-S | L3 Narda-MITEQ | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Active | 1 (Unlimited) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() |
AMFW-8S-10951170-100 | L3 Narda-MITEQ | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Active | 1 (Unlimited) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() |
VGC-7DV-70/30 | L3 Narda-MITEQ | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Active | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() |
AFS4-02001800-35-12P-TC-4 | L3 Narda-MITEQ | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Active | 1 (Unlimited) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() |
BGU7042,115 | NXP Semiconductors | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | download | 13 Weeks | Tape & Reel (TR) | 2012 | Obsolete | 1 (Unlimited) | 6 | ROHS3 Compliant | 6-TSSOP, SC-88, SOT-363 | 40MHz~1GHz | Surface Mount | 38mA | 1 | e3 | Tin (Sn) | 6 | YES | 70°C | -10°C | RF/Microwave Amplifiers | 3.3V | 10dB | 40MHz~1GHz | 2013-06-14 00:00:00 | 3.8dB | 3.1V~3.5V | General Purpose | 12dBm | |||||||||||||||||||||||||||||||||||||
![]() |
AMFW-7S-07100840-60 | L3 Narda-MITEQ | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | download | Active | 1 (Unlimited) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() |
BGU8019X | NXP Semiconductors | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | download | 13 Weeks | Tape & Reel (TR) | 2010 | Active | 1 (Unlimited) | ROHS3 Compliant | IEC-60134 | 6-XFDFN | unknown | 1.559GHz~1.61GHz | Surface Mount | 4.6mA | 6 | 85°C | -40°C | 18.5dB | 50Ohm | COMPONENT | NARROW BAND LOW POWER | 10dBm | 1.575GHz | 0.55dB | 1.5V~3.1V | Galileo, GLONASS, GPS | -7dBm | |||||||||||||||||||||||||||||||||||||||
![]() |
MD7IC1812NR1 | NXP Semiconductors | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | download | 10 Weeks | Tape & Reel (TR) | 2006 | Active | 3 (168 Hours) | EAR99 | ROHS3 Compliant | TO-270-14 Variant, Flat Leads | 1.8GHz~2.17GHz | Surface Mount | 8542.33.00.01 | e3 | Tin (Sn) | 31.5dB | NARROW BAND HIGH POWER | 1.8GHz~2.17GHz | 28V | W-CDMA | 12dBm | |||||||||||||||||||||||||||||||||||||||||||||
![]() |
LNAS-36-18002650-50-20P-TC | L3 Narda-MITEQ | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Active | 1 (Unlimited) |
-
-
HMC6981LS6TR Analog Devices Inc.
HMC6981LS6TR datasheet pdf and RF Amplifiers product details from Analog Devices Inc. stock available at HK JDW
Price: 0.0000
RFQ -
HMC517LC4TR Analog Devices Inc.
HMC517LC4TR datasheet pdf and RF Amplifiers product details from Analog Devices Inc. stock available at HK JDW
Price: 0.0000
RFQ -
HMC609 Analog Devices Inc.
HMC609 datasheet pdf and RF Amplifiers product details from Analog Devices Inc. stock available at HK JDW
Price: 0.0000
RFQ -
-
LNA-30-00101800-25-10P L3 Narda-MITEQ
LNA-30-00101800-25-10P datasheet pdf and RF Amplifiers product details from L3 Narda-MITEQ stock available at HK JDW
Price: 0.0000
RFQ -
JS2-01100180-08-10P L3 Narda-MITEQ
JS2-01100180-08-10P datasheet pdf and RF Amplifiers product details from L3 Narda-MITEQ stock available at HK JDW
Price: 0.0000
RFQ -
ADA-4543-TR1 Broadcom
ADA-4543-TR1 datasheet pdf and RF Amplifiers product details from Broadcom Limited stock available at HK JDW
Price: 0.0000
RFQ -
AMF-5D-00101200-23-10P L3 Narda-MITEQ
AMF-5D-00101200-23-10P datasheet pdf and RF Amplifiers product details from L3 Narda-MITEQ stock available at HK JDW
Price: 0.0000
RFQ -
JS2-07250775-09-10P L3 Narda-MITEQ
JS2-07250775-09-10P datasheet pdf and RF Amplifiers product details from L3 Narda-MITEQ stock available at HK JDW
Price: 0.0000
RFQ -
HMC414MS8G Analog Devices Inc.
20dB Bluetooth NARROW BAND MEDIUM POWER Bulk 2.2GHz~2.8GHz 2.75V~5V P1dB:27dBm 7dB Surface Mount
Price: 0.0000
RFQ -
BGU7045,115 NXP Semiconductors
BGU7045,115 datasheet pdf and RF Amplifiers product details from NXP USA Inc. stock available at HK JDW
Price: 0.0000
RFQ -
-
A2I22D050NR1 NXP Semiconductors
A2I22D050NR1 datasheet pdf and RF Amplifiers product details from NXP USA Inc. stock available at HK JDW
Price: 0.0000
RFQ -
-
SKY65016-70LF Skyworks Solutions Inc.
SKY65016-70LF datasheet pdf and RF Amplifiers product details from Skyworks Solutions Inc. stock available at HK JDW
Price: 0.0000
RFQ -
HMC462 Analog Devices Inc.
HMC462 datasheet pdf and RF Amplifiers product details from Analog Devices Inc. stock available at HK JDW
Price: 0.0000
RFQ -
UPC2749TB-E3-A CEL (California Eastern Laboratories)
UPC2749TB-E3-A datasheet pdf and RF Amplifiers product details from CEL stock available at HK JDW
Price: 0.0000
RFQ -
JS3-19202020-18-8P L3 Narda-MITEQ
JS3-19202020-18-8P datasheet pdf and RF Amplifiers product details from L3 Narda-MITEQ stock available at HK JDW
Price: 0.0000
RFQ -
MAAP-011139-DIE MACOM Technology Solutions
MAAP-011139-DIE datasheet pdf and RF Amplifiers product details from M/A-Com Technology Solutions stock available at HK JDW
Price: 0.0000
RFQ -
-
-
-
-
-
BGU7042,115 NXP Semiconductors
BGU7042,115 datasheet pdf and RF Amplifiers product details from NXP USA Inc. stock available at HK JDW
Price: 0.0000
RFQ -
AMFW-7S-07100840-60 L3 Narda-MITEQ
AMFW-7S-07100840-60 datasheet pdf and RF Amplifiers product details from L3 Narda-MITEQ stock available at HK JDW
Price: 0.0000
RFQ -
BGU8019X NXP Semiconductors
BGU8019X datasheet pdf and RF Amplifiers product details from NXP USA Inc. stock available at HK JDW
Price: 0.0000
RFQ -
MD7IC1812NR1 NXP Semiconductors
MD7IC1812NR1 datasheet pdf and RF Amplifiers product details from NXP USA Inc. stock available at HK JDW
Price: 0.0000
RFQ -
















Need Help?

