HHM1711D1 Equivalent & Substitute Parts

Part Overview

The HHM1711D1 is an RF Balun manufactured by TDK Corporation, designed for 2.4GHz to 2.5GHz frequency applications with 50/100 Ohm impedance matching in a 0603 (1608 Metric) surface mount package. This component is classified as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The part is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Substiute Parts

HHM1711D1

TDK CorporationIn Stock: 7115HHM1711D1 Datasheet

Current PartRFQ

BLN1608LL01R2400A

Pulse ElectronicsIn Stock: 924BLN1608LL01R2400A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HHM1711D1 is determined by the following critical parameters that must remain constant:

• Frequency Range: 2.4GHz ~ 2.5GHz
• Impedance Configuration: 50 / 100Ohm
• Phase Difference: 180° ±10°
• Package / Case: 0603 (1608 Metric)
• Mounting Type: Surface Mount
• Return Loss (Min): 10dB

The BLN1608LL01R2400A from Pulse Electronics meets all these core electrical and mechanical requirements. While insertion loss differs slightly (1.4dB maximum versus 1.2dB maximum), this remains within acceptable RF balun performance tolerances for 2.4GHz to 2.5GHz applications. Both parts maintain identical impedance matching, phase characteristics, and physical form factor.

Parameter Comparison

Engineering Selection Recommendations

The BLN1608LL01R2400A is the designated manufacturer-recommended substitute for the HHM1711D1. Selection of this alternative is supported by:

• Active product status ensuring long-term availability and supply chain continuity
• Identical electrical specifications for frequency range, impedance, and phase characteristics
• Matching physical package and surface mount configuration enabling direct PCB layout compatibility
• ROHS3 compliance and MSL 1 rating maintaining environmental and handling requirements
• Equivalent return loss performance at 10dB minimum

The 0.2dB increase in maximum insertion loss (1.4dB versus 1.2dB) represents a minor performance variance acceptable for 2.4GHz to 2.5GHz RF balun applications.

Frequently Asked Questions (FAQ)

Q: Can the BLN1608LL01R2400A be used as a direct replacement for the HHM1711D1?

A: Yes. Both parts share identical frequency range, impedance configuration, phase difference, package form factor, and mounting type. The BLN1608LL01R2400A is the manufacturer-recommended substitute.

Q: What is the significance of the insertion loss difference between these parts?

A: The HHM1711D1 specifies 1.2dB maximum insertion loss while the BLN1608LL01R2400A specifies 1.4dB maximum. This 0.2dB variance is within normal RF component tolerances and does not affect functional compatibility in 2.4GHz to 2.5GHz balun applications.

Q: Are there any PCB layout considerations when switching from HHM1711D1 to BLN1608LL01R2400A?

A: No. Both components use identical 0603 (1608 Metric) surface mount packaging, requiring no PCB footprint or layout modifications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the HHM1711D1 and BLN1608LL01R2400A are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Why is the HHM1711D1 marked as Obsolete?

A: The HHM1711D1 has reached end-of-life status. The BLN1608LL01R2400A maintains active product status, ensuring continued availability for new designs and production requirements.