UM-1 (MJ) UM-5 (MJ) | ![](./imgs/products/hff/UM-1.png) | HFF Crystal Units Fundamental 15 ~ 60 MHz 3rd OT 40 ~ 180 MHz 5th OT 80 ~ 250 MHz | ![](./imgs/pdf.jpg) |
HC 49u Pin To Hole | ![](./imgs/products/hff/HC49u.png) | Frequency 1.5 ~ 180 MHz Fundamental, 3rd OT, 5th OT Freq. Tolerance ± 10 ppm Freq. Stability ±10 ppm | ![](./imgs/pdf.jpg) |
HC-49u SMD | ![](./imgs/products/hff/HC49uSMD.png) | Frequency 3.0 ~ 150 MHz Fundamental, 3rd OT OTR -40 … +85°C | ![](./imgs/pdf.jpg) |
UM-1 Pin to Hole | ![](./imgs/products/hff/UM1-pth.png) | Frequency 8.0 ~ 200 MHz Fundamental, 3rd OT ESR 25 Ω available | ![](./imgs/pdf.jpg) |
UM-1 Gull Wing UM-4 Gull Wing UM-5 Gull Wing | ![](./imgs/products/hff/UM-1.png) | Frequency 10 ~ 200 MHz Fundamental, 3rd OT ESR 25 … 75 Ω max. | ![](./imgs/pdf.jpg) |
HC 49SS-7 Pin to Hole/SMD Short Form | ![](./imgs/products/hff/UM-1.png) | Frequency 10 ~ 50 MHz Load Capacitance 5pF ~ 20 pF Low cost for NFC, BT, Medical, WiFi | ![](./imgs/pdf.jpg) |
HC 49SS-8 Pin to Hole/SMD Height 2.0 mm | ![](./imgs/products/hff/HC49ss7.png) | Frequency 10 ~ 50 MHz Load Capacitance 5pF ~ 20 pF Low cost for NFC, BT, Medical, WiFi | ![](./imgs/pdf.jpg) |