HHM1517

Product Overview

Designed around 2.4 GHz to 2.5 GHz, HHM1517 provides the stated balanced RF interface in a compact production package. The unity-ratio network preserves the nominal 50 Ω unbalanced / 50 Ω balanced relationship while converting between single-ended and balanced circuitry. Confirmed selection data includes insertion-loss performance of 1.2 dB maximum, return loss of 10 dB minimum, amplitude balance of 0 dB ±2 dB, phase balance of 180° ±10°.

The device is intended for 2.4 GHz WLAN, Bluetooth and ISM-band RF interfaces. Its compact footprint lets the balun sit close to the RFIC, reducing the additional phase error and mismatch introduced by long differential PCB traces. The recorded lifecycle state is Production, NRND; the exact ordering code should remain in the approved BOM until an engineering-qualified alternative is available.

Key Features

• Manufacturer: TDK
• Part Number: HHM1517
• Product Category: RF Balun / RF Transformer
• Device Type: multilayer or wound surface-mount RF balun transformer
• Frequency Range: 2.4 GHz to 2.5 GHz
• System / Port Impedance: 50 Ω unbalanced / 50 Ω balanced
• Impedance / Matching Relationship: 1:1
• Insertion Loss: 1.2 dB maximum
• Return Loss: 10 dB minimum
• Amplitude Balance / Unbalance: 0 dB ±2 dB
• Phase Balance / Difference: 180° ±10°
• Package / Case: 2.0 × 1.25 × 0.95 mm, 6-terminal HHM15
• Mounting Type: Surface mount
• Operating Temperature: -40°C to +85°C
• Lifecycle Status: Production, NRND
• Target Application: 2.4 GHz WLAN, Bluetooth and ISM-band RF interfaces

Applications

• 2.4 GHz WLAN, Bluetooth and ISM-band RF interfaces
• Single-ended-to-balanced receiver, transmitter, mixer and amplifier interfaces
• Compact WLAN, Bluetooth, IoT and embedded wireless modules

Quality & Sourcing

Antrex Electronics can support sourcing of HHM1517 for production, repair and shortage requirements. Incoming verification can compare the exact manufacturer marking, ordering suffix, package dimensions, frequency range, single-ended and balanced impedances, insertion-loss limits and lifecycle status. For obsolete or NRND devices, Antrex Electronics can also coordinate BOM sourcing and third-party inspection before shipment, while alternative parts should remain subject to engineering approval for PCB footprint, impedance and RF performance.