HHM1523B3

Product Overview

Designed for Cellular Bands 5, 6, 18, 19, 20, 26, 27 and 82, HHM1523B3 integrates the published multilayer chip RF balun transformer function. The 1:2 relationship defines how the single-ended, balanced or transformed ports interact and should remain unchanged when evaluating replacements. Confirmed selection information includes operating band: 824 MHz to 894 MHz; port impedance: 50 Ω unbalanced / 100 Ω balanced; insertion-loss data: 1.2 dB maximum; return-loss data: 10 dB minimum; phase information: 180° ±10°.

Exact TDK data: 824 MHz to 894 MHz, 50 Ω unbalanced / 100 Ω balanced, 1.2 dB maximum, 10 dB minimum, 180° ±10°, 0 dB ±1 dB and 2.0 × 1.25 × 0.95 mm, 6-terminal HHM15 package. RF layout should follow the manufacturer land pattern, with controlled impedance, short interconnects and appropriate grounding around the signal-conditioning network. The recorded lifecycle state is NRND / legacy.

Key Features

• Manufacturer: TDK
• Part Number: HHM1523B3
• Product Category: RF Balun
• Device Type: multilayer chip RF balun transformer
• Frequency Range / Band: 824 MHz to 894 MHz
• System / Port Impedance: 50 Ω unbalanced / 100 Ω balanced
• Impedance / Matching Relationship: 1:2
• Insertion Loss: 1.2 dB maximum
• Return Loss: 10 dB minimum
• Phase Balance / Difference: 180° ±10°
• Amplitude Balance / Unbalance: 0 dB ±1 dB
• Technology: TDK multilayer RF balun
• Package / Case: 2.0 × 1.25 × 0.95 mm, 6-terminal HHM15 package
• Mounting Type: Surface mount
• Operating Temperature: -40°C to +85°C
• Lifecycle Status: NRND / legacy
• Packaging: Embossed tape and reel
• Primary Application: Cellular Bands 5, 6, 18, 19, 20, 26, 27 and 82

Applications

• Cellular Bands 5, 6, 18, 19, 20, 26, 27 and 82
• Differential mixers, LNAs, drivers, detectors and push-pull amplifiers
• Receiver, transmitter, tuner, CATV, cellular or instrumentation signal paths

Quality & Sourcing

Antrex Electronics can support sourcing of HHM1523B3 for production, repair and shortage requirements. Incoming verification can compare the exact manufacturer marking, ordering suffix, package, frequency range, port configuration and documented RF function. For legacy or obsolete components, date-code and condition review, visual inspection and third-party testing can be coordinated before shipment. Alternative parts should remain subject to engineering approval because a nearby family code may use a different impedance, winding arrangement, filter response, RFIC match or PCB footprint.