KH-SMA-K513-G: A Cost-Effective Alternative to TE 5-1814400-1 SMA PCB Connector

When designing RF and wireless systems, engineers often look for reliable SMA PCB connectors that balance performance, availability, and cost. TE Connectivity’s 5-1814400-1 is a widely used right-angle SMA jack for PCB mounting in commercial RF applications. However, its relatively high unit price can significantly increase BOM costs, especially in volume production.

Kinghelm KH-SMA-K513-G offers a functionally equivalent and cost-effective alternative, delivering comparable—or even enhanced—RF performance at a fraction of the cost.

 

Overview of TE 5-1814400-1

The TE 5-1814400-1 is a right-angle SMA female (jack) PCB connector designed for cable-to-board RF connections. Its typical applications include RF modules, communication equipment, and commercial wireless devices.

Key specifications:

l Interface: SMA, Jack

l Mounting style: PCB Right Angle, Through-Hole

l Characteristic impedance: 50 Ω

l Frequency range: DC–3 GHz

l Coupling mechanism: Threaded

l Dielectric: PTFE

l Application grade: Commercial

While proven and reliable, its market price typically ranges from USD 2.3 to 3.6 per unit, depending on quantity.

Introducing Kinghelm KH-SMA-K513-G

 

The KH-SMA-K513-G is a right-angle SMA PCB socket developed by Kinghelm for modern RF and microwave applications. It follows standard SMA mechanical and electrical interfaces, ensuring compatibility with existing SMA cables and mating connectors.

Key features of KH-SMA-K513-G:

l Interface: SMA Jack

l Mounting: PCB Right Angle

l Characteristic impedance: 50 Ω

l Frequency range: DC–18 GHz

l VSWR: ≤1.2/3 GHz

l Dielectric: PTFE

l Housing: Brass, gold plated

l Operating temperature: -55°C to +155°C

From both electrical and mechanical perspectives, KH-SMA-K513-G is well suited for commercial and industrial RF designs.

TE 5-1814400-1 vs. KH-SMA-K513-G

Parameter	TE 5-1814400-1	KH-SMA-K513-G
Interface	SMA Jack	SMA Jack
Mounting	Right Angle, PCB	Right Angle, PCB
Impedance	50 Ω	50 Ω
Frequency Range	DC–3 GHz	DC–18 GHz
VSWR	—	≤1.2/3 GHz
Dielectric	PTFE	PTFE
Housing Material	Zinc Alloy, Gold Plated	Brass, Gold Plated
Operating Temperature	Commercial Grade	-55°C to +155°C

Conclusion: KH-SMA-K513-G meets the functional requirements of TE 5-1814400-1 and offers a wider frequency range and broader temperature tolerance.

Significant Cost Advantage

One of the strongest reasons to consider KH-SMA-K513-G is its dramatic cost reduction.

Typical market pricing:

l TE 5-1814400-1: USD 2.35–3.60 (depending on quantity)

l KH-SMA-K513-G: USD 0.32–0.59 (depending on quantity)

This represents up to 80–85% cost savings, making KH-SMA-K513-G an ideal choice for cost-sensitive designs and mass production projects.

Typical Applications

KH-SMA-K513-G is suitable for the same application scenarios as TE 5-1814400-1, including:

l RF communication modules

l Wireless terminals and gateways

l Antenna interfaces on PCBs

l Test and measurement equipment

l IoT and industrial communication devices

Its extended frequency capability also makes it attractive for designs with future RF performance upgrades.

A Smart Alternative for RF Designers

For engineers seeking a reliable, compatible, and budget-friendly alternative to TE 5-1814400-1, Kinghelm KH-SMA-K513-G provides an excellent solution. It combines standard SMA compatibility, solid materials, stable RF performance, and a clear cost advantage—without compromising on quality.

KH-SMA-K513-G is not just an alternative, but a smarter choice for modern RF designs.