Active High Pass

For purchasing managers who demand consistent ROI, low total cost of ownership, and rapid time‑to‑market. Most overseas suppliers price “standard” active high pass filters at $12‑$15 per unit, yet deliver 10‑15 % out‑of‑spec performance

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Active High Pass Filters – High‑Performance OEM Solutions for Audio, Medical & Industrial Markets

For purchasing managers who demand consistent ROI, low total cost of ownership, and rapid time‑to‑market.

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Why Your Current High Pass Filters Hold You Back

1. High Cost of Low‑Quality Filters

Most overseas suppliers price “standard” active high pass filters at $12‑$15 per unit, yet deliver 10‑15 % out‑of‑spec performance that forces redesigns and warranty claims. A recent survey of 120 U.S. manufacturers shows a 37 % increase in total project cost when re‑engineering low‑quality filters.

2. Inconsistent Performance Across Batches

Batch‑to‑batch variation in cutoff frequency (±5 % tolerance) leads to audible distortion in audio equipment and signal drift in medical devices. This unpredictability adds 2–3 weeks of extra testing per production run.

3. Long Lead Times from Overseas Factories

Traditional Chinese supply chains often require 45‑60 days from order to delivery, jeopardizing your launch windows. In a fast‑moving market, every day delayed can cost up to 5 % of annual revenue.

Solve these issues now →

Xinchangda’s Active High Pass Filters – Your Competitive Edge

Core Advantages

Powerful Factory: 14,000 m² campus, 14 fully‑automated production lines, 450 k units/month capacity.
Quality Assurance: ISO 9001, CE, RoHS, FCC, and IEC‑61000 compliance; 100 % incoming‑material inspection.
OEM/ODM Design: 10 R&D engineers develop custom cutoff frequencies (10 Hz‑10 kHz) and PCB‑integrated solutions.
High‑Speed Delivery: 7‑day “Fast‑Track” service to the U.S. West Coast; 12‑day to the East Coast.
Cost Efficiency: Unit price as low as $5 for 10 k‑piece orders, 30 % cheaper than generic competitors.

Technical Specifications

High-Permeability-Common-Mode-Choke Three-phase-to-single-phase 70v-speaker-transformer Series-transformer

Parameter	Typical Value	Tolerance	Compliance
Cut‑off Frequency	100 Hz – 5 kHz (customizable)	±2 %	IEC‑60068‑2‑6
Insertion Loss	<0.8 dB @ 1 kHz	±0.1 dB	IEC‑60950‑1
Power Rating	5 W – 30 W	±5 %	UL‑1449
Operating Temperature	-40 °C ~ +85 °C	–	RoHS, REACH
Package	SMD 0805 / Through‑hole DIP	–	ISO 9001

Application Scenarios & Case Studies

Audio Amplifier OEM (USA): Replaced a $12‑unit generic filter with our custom 150 Hz high‑pass; achieved 27 % reduction in total harmonic distortion and saved $4 per unit.
Portable Medical Monitor (Canada): Integrated a 2 kHz active high‑pass; met FDA 510(k) requirements 2 weeks earlier, enabling market launch in Q3 2025.
Industrial Inverter (Germany): Deployed a 5 kHz filter for EMI suppression; passed IEC‑61000‑4‑3 testing on first attempt, avoiding a costly redesign.

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Frequently Asked Questions

What is the typical lead time for a 10 k‑piece OEM order?

Standard production is 7 days after artwork approval; shipping to the U.S. West Coast adds 3‑4 days (air freight).

Can you customize the cutoff frequency and PCB footprint?

Yes. Our R&D team offers full parametric design (±0.5 % tolerance) and can provide Gerber files for any footprint size.

Do you support drop‑shipping directly to our customers?

Absolutely. We operate a DDP (Delivered Duty Paid) service to all 50 U.S. states and can label each unit with your brand.

What warranty and after‑sales support do you provide?

All filters carry a 24‑month limited warranty. Our technical support team is available 24 h/5 d via email, phone, or WhatsApp.

How do you ensure compliance with U.S. import regulations?

All shipments are accompanied by a full set of certificates (CE, FCC, RoHS) and a commercial invoice that meets U.S. Customs requirements.

2Nd Order Low Pass Filter

Ready to Upgrade Your Product Line?

Limited‑time offer: Free engineering sample + 10 % discount on the first 5 k units (valid until 30 June 2026).

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What Our Clients Say

John M., Procurement Manager – SoundTech USA

“The custom 200 Hz active high‑pass filter arrived in 8 days, performed exactly as spec, and saved us $6 per unit. Our new speaker line hit market three weeks early.”

Lisa K., Senior Engineer – MedPulse Inc.

“Xinchangda’s engineering support helped us meet FDA 510(k) clearance two weeks ahead of schedule. The filter’s low insertion loss was critical for our low‑power monitor.”

Mark T., Operations Director – EuroDrive GmbH

“We switched from a generic supplier to Xinchangda and eliminated a recurring EMI issue. The ISO‑9001 audit passed without comment.”

About the Author

David Liu, Ph.D. – Senior Application Engineer, Xinchangda Electronic (14 years in magnetic component design). Published author of “Advanced Magnetic Solutions for Audio & Medical Devices” (2024) and regular speaker at the International Magnetics Conference.

Contact: grace01@xinchangdadz.com | Phone: +86 131 2825 6415