HHM1908A2

Product Overview

HHM1908A2 combines single-ended-to-balanced conversion with a verified operating range of 4900 MHz to 5950 MHz. The 1:2 transformation connects the 50 Ω unbalanced / 100 Ω balanced ports and replaces a larger discrete matching network. Confirmed selection limits include insertion loss of 0.55 dB, return loss of 10 dB, amplitude balance of 0 dB ±2.5 dB, phase balance of 180° ±10°.

The band is centered on 5 GHz wireless service and is directly relevant to 5 GHz WLAN 50 Ω-to-100 Ω RFIC interfaces. Short, symmetric balanced traces are especially important at the upper end of the range. The recorded lifecycle state is Production; the exact suffix should remain in the BOM until an approved alternative is qualified.

Key Features

• Manufacturer: TDK
• Part Number: HHM1908A2
• Product Category: RF Balun / RF Transformer
• Device Type: multilayer chip RF balun transformer
• Frequency Range: 4900 MHz to 5950 MHz
• System / Port Impedance: 50 Ω unbalanced / 100 Ω balanced
• Impedance Ratio: 1:2
• Insertion Loss: 0.55 dB
• Return Loss: 10 dB
• Amplitude Balance / Unbalance: 0 dB ±2.5 dB
• Phase Balance / Difference: 180° ±10°
• Package / Case: 1.0 × 0.5 × 0.50 mm, 4-terminal HHM19
• Mounting Type: Surface mount
• Operating Temperature: -40°C to +85°C
• Lifecycle Status: Production
• Target Application: 5 GHz WLAN 50 Ω-to-100 Ω RFIC interfaces

Applications

• 5 GHz WLAN 50 Ω-to-100 Ω RFIC interfaces
• Differential RFIC, mixer and amplifier interfaces
• Compact wireless, cellular, broadcast or telemetry modules

Quality & Sourcing

Antrex Electronics can support sourcing of HHM1908A2 for production, repair and shortage requirements. Incoming verification can include manufacturer marking, dimensional checks, frequency and impedance review, date-code inspection and third-party testing when requested. The exact balanced impedance, package size and lifecycle suffix should remain visible in any alternative-component evaluation.