What standard frequencies are available for FSR-2016?

FSR-2016 covers 154–1000 MHz. Common standard frequencies include 303, 315, 390, 433.92, and 435.72 MHz.

What frequency tolerance options are supported at 25°C?

Typical options are ±50 kHz, ±75 kHz, and ±150 kHz at 25°C, or you may specify a custom tolerance depending on frequency and application requirements.

How do I download the FSR-2016 datasheet?

Use the Download Datasheet button on this page, or request the datasheet via email at FCom@fujicrystal.com if you need a special frequency or tolerance.

FSR-2016 SMD SAW Resonator (2.0×1.6 mm)

FSR-2016 is a compact SMD SAW resonator designed for strong RF transmit/receive sensitivity and robust environmental resistance in sub-GHz wireless systems. It supports 154–1000 MHz and popular standard frequencies such as 315 MHz and 433.92 MHz. For related solutions, see Automotive grade resonators.

154–1000 MHz 2.0×1.6×1.0 mm SMD Standard: 303 / 315 / 390 / 433.92 / 435.72 MHz Insertion loss in 50 Ω: 1.0–1.5 dB (by frequency) −40 to +85°C operation RoHS compatible

Request Quote / Sample Download Datasheet View Specs

Email: FCom@fujicrystal.com (share target frequency, tolerance, and your 50 Ω test/reference conditions).

FSR-2016 2.0×1.6mm SMD SAW resonator product image

Key Features

Compact 2016 footprint: 2.0×1.6×1.0 mm SMD package for dense RF layouts.
High Tx/Rx sensitivity support for short-range wireless links.
Environmental resistance, including high-temperature resistance and impact resistance.
Wide frequency coverage: 154–1000 MHz with standard frequencies available.
Insertion loss in 50 Ω systems: 1.0/1.3/1.4/1.5 dB (by frequency).
Temperature behavior control: turnover temperature options 25/40/55°C; FTC 0.037 ppm/°C.
RoHS compatible.

Frequency Range

154–1000 MHz

Package

2.0×1.6×1.0 mm

Tolerance @25°C

±50 / ±75 / ±150 kHz

Operating Temp

−40 to +85°C

Recommended Applications

Automotive keyless entry (RKE), remote control receivers and transmitters
TPMS and sub-GHz automotive/industrial wireless nodes
315 MHz / 433.92 MHz ISM-band RF modules and sensor links
Short-range telemetry, alarms, access control, and RF front-ends

Note: Final performance depends on matching, PCB layout, and the reference impedance (commonly 50 Ω) used for characterization.

Electrical Specifications

Values below summarize the FSR-2016 series. For custom frequency and tighter targets, contact FCom Fuji Crystal.

Item	Minimum	Typical	Maximum	Unit
Frequency Range (f)	154		1000	MHz
Standard Frequency		303, 315, 390, 433.92, 435.72		MHz
Frequency Tolerance @25°C (Δf)		±50 / ±75 / ±150, or specify		kHz
Insertion Loss in 50 Ω system (IL)		1.0 / 1.3 / 1.4 / 1.5, or specify		dB
Turnover Temperature (T0)		25 / 40 / 55		°C
Frequency Temperature Coefficient (FTC)		0.037		ppm/°C
Frequency Aging (first year, \|fA\|)			≤10	ppm/yr
DC Insulation Resistance (any two pins)	1			MΩ
Operating Temperature Range	−40		+85	°C
Storage Temperature Range	−40		+85	°C

Tip: When comparing insertion loss across designs, keep the same reference impedance and matching network. Small layout parasitics can shift the apparent IL, especially near the band edges.

Datasheet: Download FSR-2016 PDF

Package & Pinout

Mechanical	Details
Package Size	2.0×1.6×1.0 mm (SMD)
Pin Assignment	Pin 1: Input/Output Pin 3: Output/Input Pin 2, 4: Ground
Integration	Use a continuous RF ground reference. Keep RF traces short, avoid stubs, and place matching parts next to the pads.

Note: Pin 1 and Pin 3 are bidirectional depending on circuit topology. Ground pins should connect to a low-impedance RF ground with short vias.

Design Recommendations

Reference impedance consistency: Characterize and tune in the same reference (commonly 50 Ω) used for your system-level spec to avoid IL mismatch.
Ground integrity: Stitch multiple vias near ground pins and keep the ground return continuous under the RF path.
Short, controlled routing: Minimize stubs; keep RF traces away from fast digital clocks to reduce coupling.
Matching network placement: Place matching/EMI components adjacent to the resonator pads to reduce parasitics.
Assembly robustness: Follow standard SMT reflow profiles; handle carefully to avoid mechanical shock.

For a custom frequency not listed in the standard set, provide target MHz, tolerance (kHz), and operating temperature range to get a feasible offer.

FAQ

Which frequencies are most common for automotive and ISM applications?

315 MHz and 433.92 MHz are widely used in keyless entry and short-range RF links. FSR-2016 also supports 303/390/435.72 MHz and custom frequencies within 154–1000 MHz.

What does turnover temperature mean for frequency vs temperature behavior?

Turnover temperature indicates the point where the temperature-frequency curve changes slope. Typical options include 25°C, 40°C, and 55°C, helping you align performance with your operating environment.

How do I request a custom frequency or tighter tolerance?

Email FCom@fujicrystal.com with target frequency (MHz), required tolerance (kHz), operating temperature range, and your reference impedance/matching conditions.