Mfr Part #:

B39431R

Mfr Name: Infineon

The Infineon B39431R is a SAW resonator designed for short range devices. It operates at a center frequency of 433.92 MHz and is housed in an SMT package.

✓ Total Stock: 252 pcs

$ Price Range: $0.99

B39431R Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
MW.FEP S.p.A. ✓ Non-Authorised Inventory information	252 pcs On Request	252 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

B39431R Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Infineon
DC Voltage	12 V
Mounting Type	Surface Mount Technology (SMT)
SVHC Present	Not Present
Termination Style	Ni, gold-plated terminals

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B39431R Description

Short technical summary and product information.

The Infineon B39431R is a SAW resonator belonging to the R920 series, specifically designed for short range device applications. It provides reliable, fundamental mode, quartz frequency stabilization, making it suitable for use in transmitters or local oscillators.

This component features a compact package size of 3.0 x 3.0 x 1.0 mm³ with a DCC6E package code, designed for Surface Mount Technology (SMT). It has Ni, gold-plated terminals and is lead-free soldering compatible. The resonator operates at a center frequency of 433.92 MHz with a minimum insertion attenuation of 1.4 dB and an unloaded quality factor (Q U) ranging from 8500 to 12500.

Key electrical characteristics include a motional capacitance of 1.68 fF, motional inductance of 79.86 μH, and motional resistance of 72.5 Ω. The parallel capacitance (C0) is typically 2.4 pF. It has a temperature coefficient of frequency of -0.032 ppm/K² with a turnover temperature of 25 °C. The operable temperature range is -45 °C to +125 °C, and it has a maximum DC voltage rating of 12 V and a maximum source power of 0 dBm.

The B39431R is RoHS 3 compliant and has an MSL rating of 1. It is also AEC-Q200 qualified, indicating its suitability for demanding automotive applications.

B39431R Quick Information

Product Type: SAW Resonator

Series: R920

Canonical Name: SAW Resonator

Subcategory: SAW Filters

B39431R Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

Lead Free: Lead free soldering compatible with J - STD20C

B39431R Estimated Pricing

Qty	Low	High
1+	$0.99	$0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

B39431R Features

SAW resonator for short range devices.
Center frequency of 433.92 MHz.
Compact 3.0 x 3.0 x 1.0 mm³ SMT package.
High unloaded Q factor up to 12500.
AEC-Q200 qualified component family.

B39431R Applications

Used in transmitters and local oscillators.
Suitable for short range communication.
Ideal for automotive applications.
Provides fundamental mode frequency stabilization.

B39431R FAQs

7 frequently asked questions generated from this part’s specifications.

What is the center frequency of the B39431R SAW resonator?

The center frequency of the B39431R SAW resonator is typically 433.92 MHz, with a minimum of 433.845 MHz and a maximum of 433.995 MHz.

What is the minimum insertion attenuation for the B39431R?

The minimum insertion attenuation for the B39431R is 1.4 dB.

What is the unloaded quality factor (Q U) of the B39431R?

The unloaded quality factor (Q U) of the B39431R is typically 12500, with a minimum of 8500.

What are the package dimensions of the B39431R?

The package dimensions of the B39431R are 3.0 x 3.0 x 1.0 mm³.

What is the operating temperature range for the B39431R?

The operable temperature range for the B39431R is -45 °C to +125 °C.

Is the B39431R RoHS compliant?

Yes, the B39431R is RoHS 3 compliant.

What is the Moisture Sensitivity Level (MSL) for the B39431R?

The Moisture Sensitivity Level (MSL) for the B39431R is 1 Unlimited.