BLF872

General description

A 300 W LDMOS RF power transistor for broadcast transmitter applications and industrial applications. The transistor can deliver 250 W broadband over the full UHF band from 470 MHz to 860 MHz. The excellent ruggedness and broadband performance of this device makes it ideal for digital transmitter applications.

CAUTION

This device is sensitive to ElectroStatic Discharge (ESD). Therefore care should be taken during transport and handling.

Features

• Typical 2-tone performance at 860 MHz, a drain-source voltage V_DS of 32 V and a quiescent drain current I_Dq = 2 x 0.9 A:
• Peak envelope power load power P_L(PEP) = 300 W
• Gain G_p = 15 dB
• Drain efficiency nD = 43 pct.
• Third order intermodulation distortion IMD3 = -28 dBc
• Typical DVB performance at 858 MHz, a drain-source voltage V_DS of 32 V and a quiescent drain current I_Dq = 2 x 0.9 A:
• Average output power P_L(AV) = 70 W
• Gain G_p = 15 dB
• Drain efficiency nD = 30 pct.
• Third order intermodulation distortion IMD3 = -28 dBc (4.3 MHz from center frequency)
• Advanced flange material for optimum thermal behavior and reliability
• Excellent ruggedness
• High power gain
• Designed for broadband operation (UHF band)
• Excellent reliability
• Internal input and output matching for high gain and optimum broadband operation
• Source on underside eliminates DC isolators, reducing common-mode inductance
• Easy power control

Products/packages

Type number	North American Type number	Ordering code (12NC)	Product status	Package	Packing	Marking	Chemical content	Leadfree conversion date
BLF872	BLF872	9340 588 88112	Volume production	SOT800-1 (LDMOST)	Bulk Pack	Standard Marking	Not available

Pricing/ordering/availability

Type number	Ordering code(12NC)	Indicative price/unit($)	Region	Distributor	In stock	Order quantity	Inventory date	Buy online	Samples
BLF872	9340 588 88112								Order samples

Applications

• Communication transmitter applications in the UHF band
• Industrial applications in the UHF band

Design support

Support Documents

Parametrics/similar products

Type number	Package	Description	Efficiency(%)	MIN. POWER GAIN(dB)	Package Material	Frequency band(GHz)	Output Power(W)
BLF872	SOT800-1 (LDMOST)	UHF LDMOS POWER Transistor	55	16.5	SOT800A	470-860	300

Similar products
BLF872 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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