Harmony PI Filters are in stock. Order direct or through DigiKey.
TransSiP
Cart 0 Distributors Buy
Buy TSNJ-5A6L26 Distributors
Recommended for new designs RoHS 3 REACH Halogen-free MSL 2a Datasheet Rev 9

Harmony PI Filter, 5 A

TSNJ-5A6L26

A passive power-integrity filter for DC rails. It delivers power at the intrinsic noise floor from DC to 6 GHz, and up to 20 GHz in a dual configuration, from a 2.2 × 2.6 mm LGA.

Datasheet PDF, 1.6 MB Buy Design center
Max rating
5 A, ±6 V
Suppression
DC to 20 GHz
Size
2.2 × 2.6 × 0.9 mm
TSNJ A4WW TransSiP

LGA-2226, drawn to scale with its real top marking: ▶ TSNJ, the A4WW date code, and TransSiP. Six pads underneath: VIN, VOUT and four grounds.

Buy direct from TransSiP

In stock Ships direct from TransSiP
Unit price$4.22
Extended price$4.22
Get a quote Approved vendors
QuantityUnit priceExtended
1 $4.22 $4.22
10 $3.86 $38.60
50 $3.26 $163.00
200 $2.80 $560.00
500 $2.72 $1,360.00
1,000 $2.66 $2,660.00
2,000 $2.48 $4,960.00
3,000 (reel) $2.12 $6,360.00
Over 3,000 Request a quote

Prices are in USD. Tax and shipping are added at checkout. Pay by card online, or request a quote to pay by PO or wire transfer.

Also at DigiKey 5,332 in stock

Overview

  • Delivers DC power at the intrinsic noise floor of your DC-DC, LDO or PDN
  • Patented Switching Noise Jitter (SNJ) conditioning in the time and frequency domains
  • One application circuit for every rail: Harmony plus two 47 µF capacitors (Type-B). No small-value capacitors.
  • Micro-ohm flat PDN impedance from baseband to multi-GHz
  • Improves transient response by removing parasitic inductance, anti-resonance peaks, LC tank ringing and overshoot
  • Frees up to 90% of PDN board area by replacing up to 80% of its passive components
  • Purely passive: draws no power

In the power chain, Harmony's time-domain conditioning suppresses SNJ and chaotic noise from a switching supply. That shrinks the high-speed current loops, removes EMI, stabilizes the regulator and improves conversion efficiency. It also keeps noise from one part of a circuit, including simultaneous switching noise and ground bounce, from spreading. In the signal chain, its native 700 Hz cutoff cleans up slow sensors such as geophones without power-hungry digital filtering.

Applications

  • Data center: timing, TIA, laser source and driver, equalizer, cable driver, SerDes, photodiode, ACC, AEC, AOC, OSFP, QSFP
  • Wireless: timing, digitizer, backhaul, SoC, LNA, 5G, 6G, GPS, satellites, modular spacecraft
  • Computing: GPU, TPU, DDR, HBM, memory controller, SSD, quantum
  • Signal processing: ADC, DAC, FPGA
  • Sensors: LEDs, photodetectors, geophones, MEMS, biomedical

Specifications

Electrical

Maximum rating5 A, ±6 V at 25 °CDerate current and voltage for long-term reliability (datasheet notes 1 and 2)
Noise suppressionDC to 6 GHz in Type-B, up to 20 GHz in dual Type-BTime and frequency domains
Native −3 dB cutoff700 HzAlso usable as a signal-chain filter for sub-kilohertz sensors
Peak rejectionAbout −120 dB with a single Type-B, −140 to −160 dB with dual Type-BBelow the noise floor of most instruments. Capacitor networks reach 80 to 90 dB at best
Type-B shunt impedance104 to 255 µΩ, 1 MHz to 100 MHzHarmony with two 47 µF capacitors at VOUT
Power consumptionNone (passive)

Mechanical

PackageLGA-2226, 6 pads
Body size2.60 × 2.20 mm (±0.05), 0.9 mm maximum height
PinoutPin 1 VIN, pin 3 VOUT, pins 2, 4, 5, 6 GND
Top marking▶ TSNJ, date code A4WW, TransSiPA is the year (2026), 4 the run group and WW the week number

Environmental and handling

Operating temperature−55 °C to +85 °C
Moisture sensitivityMSL 2aReflow within 4 weeks of opening the bag at <30 °C and 60% RH
RoHSRoHS 3 compliantDirective 2011/65/EU as amended by (EU) 2015/863
REACHCompliantNo SVHC above 0.1% by weight (February 2026)
Halogen-freeIEC 61249-2-21Cl and Br each under 900 ppm, combined under 1,500 ppm
ReflowLead-free, IPC/JEDEC J-STD-020
Shelf life in sealed bag12 months at <40 °C and <90% RH

Reliability

Life test500 parts, 1,000 h at 85 °C and 4 V, zero failures
Predicted field failure rate18.1 FIT at 3.3 V and 45 °CJIS C5003 model, 60% confidence. MTTF of about 6,300 years
Board-level qualification2,880 parts mounted after 85 °C / 85% RH, zero failuresDefect rate below 0.1% LTPD at 95% confidence

Packaging

Cut stripMinimum order of 1 piece
Tape and reel3,000 per 180 mm reel, 8 mm tape, 4 mm pitch, pin 1 in Q2

Trade compliance

ECCNEAR99
HTSUS8542.39.0001

Pin assignment

PinNameFunction
1VINVoltage or signal input
2GNDGround
3VOUTVoltage or signal output
4GNDGround
5GNDGround
6GNDGround

Performance

Insertion loss of the part alone, in Type-B, and in dual Type-B up to 20 GHz. Plotted from instrument marker readings.

Insertion loss (S21), 30 kHz to 20 GHz

  • Harmony alone (native)
  • Type-B: Harmony + two 47 µF
  • Dual Type-B, two EVBs in series
Insertion loss (S21), 30 kHz to 20 GHz Lines join the instrument marker readings on a log axis. Between 2 MHz and 500 MHz the Type-B trace sits on the network analyzer’s own noise floor, so the true attenuation there is deeper than the plot can show, below the noise floor of most instruments: about −120 dB with a single Type-B, and −140 to −160 dB with dual Type-B. Conventional capacitor networks reach 80 to 90 dB at best. 10 kHz 100 kHz 1 MHz 10 MHz 100 MHz 1 GHz 10 GHz -110 dB -90 dB -70 dB -50 dB -30 dB VNA noise floor, about −100 dB Harmony alone (native): -31.7 dB at 30 kHz Harmony alone (native): -61.6 dB at 1 MHz Harmony alone (native): -86.5 dB at 13 MHz Harmony alone (native): -52.1 dB at 1 GHz Harmony alone (native): -37.0 dB at 6 GHz Type-B: Harmony + two 47 µF: -50.0 dB at 30 kHz Type-B: Harmony + two 47 µF: -81.8 dB at 900 kHz Type-B: Harmony + two 47 µF: -99.5 dB at 2 MHz Type-B: Harmony + two 47 µF: -97.5 dB at 500 MHz Type-B: Harmony + two 47 µF: -80.6 dB at 1.6 GHz Type-B: Harmony + two 47 µF: -58.5 dB at 6 GHz Dual Type-B, two EVBs in series: -83.1 dB at 1 GHz Dual Type-B, two EVBs in series: -84.1 dB at 6 GHz Dual Type-B, two EVBs in series: -62.2 dB at 10 GHz Dual Type-B, two EVBs in series: -51.4 dB at 20 GHz

Lines join the instrument marker readings on a log axis. Between 2 MHz and 500 MHz the Type-B trace sits on the network analyzer’s own noise floor, so the true attenuation there is deeper than the plot can show, below the noise floor of most instruments: about −120 dB with a single Type-B, and −140 to −160 dB with dual Type-B. Conventional capacitor networks reach 80 to 90 dB at best.

Source: Datasheet TSNJ-DS-R009; Noise Free Innovations 26V2, p. 6

Measured in application circuits

Peak rejectionAbout −120 dB with a single Type-B, −140 to −160 dB with dual Type-BBelow most instruments’ noise floors
Type-B S21, 2 MHz to 500 MHzAbout −100 dB, at the VNA’s noise floorDatasheet R009 §1.2
Dual Type-B S21−62 dB at 10 GHz, −51 dB at 20 GHzRohde & Schwarz ZNB
Type-B shunt impedance104 to 255 µΩ, 1 MHz to 100 MHzDual Type-B: 2 to 5 µΩ, 14 MHz to 300 MHz
ADI LT8622S output ripple10 mVp-p to 4.48 µVp-p (2,232×)1 V, 2 A, Type-B at VOUT
ADM7150 LDO baseband noise20 dB less 1/f noiseDefense radio, by permission
122.88 MHz VCXO jitter from a noisy 3.3 V rail233 fs to 20 fsLab ideal: 18 fs

Full setups, instruments and photos for each result are in the case studies.

Read the case studies

The Type-B circuit

Place Harmony at the point of load with two 47 µF, 10 V capacitors at VOUT. No small-value capacitors. Use the same three parts on every rail, and use two Type-B stages in series to reach 20 GHz.

  • Near a switcher, put pin 1 close to the power inductor and the feedback node.
  • Connect each GND pad to the plane with vias right at the pad. Stitch the ground layers generously.
  • Return the bulk capacitors to the ground plane, not to Harmony’s GND pad.

All layout rules in the design center

Type-B configuration: one Harmony PI Filter and two 47 µF capacitors An isometric drawing of a red circuit board. The rail enters at VIN, passes through the Harmony PI Filter, and continues to VOUT, where two 0805 capacitors connect it to ground. Rows of ground vias surround the filter. TSNJ A4WW TransSiP Harmony PI Filter TSNJ-5A6L26, 2.6 × 2.2 × 0.9 mm Two 47 µF, 10 V 0805, at VOUT VIN VOUT Ground stitching vias around every GND pad

Package and land pattern

LGA-2226 PCB land pattern, top view, in millimetres Six pads in three rows, 2.10 mm by 1.70 mm overall. Top row: pad 6 GND, 1.00 mm wide, and pad 5 GND, 0.65 mm wide. Middle row: pad 1 VIN, 0.45 mm square, and pad 4 GND, 1.20 mm wide. Bottom row: pad 2 GND, 1.00 mm wide, and pad 3 VOUT, 0.65 mm wide. Rows are 0.35, 0.45 and 0.35 mm tall with 0.275 mm gaps, and columns are separated by 0.45 mm. Dashed: package outline, 2.60 × 2.20 mm 6 GND 5 GND 1 VIN 4 GND 2 GND 3 VOUT 2.10 1.00 0.65 0.35 0.45 0.35 1.70 0.45 1.20 (pad 4) gaps 0.275
Top view, in millimetres, redrawn to scale from datasheet R009 §4. Pin 1 (VIN) is the small middle-left pad. VOUT is bottom right, and the other four pads are ground.

CAD models

Free downloads for Altium Designer and any CAD tool that reads STEP.

Footprint (.PcbLib)Symbol (.SchLib)3D model (.stp)

Handling

MSL 2a, dry-packed with desiccant and a humidity indicator card. Reflow within 4 weeks of opening at <30 °C and 60% RH, or bake before reflow (bake conditions are in the datasheet). Do not bake above 65 °C in tape and reel.

Quality and compliance

10× stricter quality assurance: qualified to 0.1% LTPD on mounted boards, far beyond standard J-STD-020 unmounted tests. 2,880 board-mounted parts passed with zero failures. The predicted field failure rate is 18.1 FIT at 3.3 V and 45 °C, an MTTF of about 6,300 years.

  • RoHS 3

    Directive 2011/65/EU as amended by (EU) 2015/863. All ten restricted substances below their limits, including lead (1,000 ppm) and cadmium (100 ppm).

    Certificate (PDF)TSQA-RoHS3
  • REACH

    No substance from the REACH Candidate List of Substances of Very High Concern above 0.1% by weight.

    Certificate (PDF)TSQA-REACH, February 2026
  • Halogen-free

    IEC 61249-2-21: chlorine and bromine each below 900 ppm, and below 1,500 ppm combined.

    Certificate (PDF)TSQA-HF
  • Moisture sensitivity

    MSL 2a for TSNJ series PI filters and TSA1 converters, dry-packed with desiccant and a humidity indicator card. MSL 1 for all other TransSiP products. Lead-free reflow per IPC/JEDEC J-STD-020.

    Datasheet (PDF)Datasheet R009 §6

Qualification details, FIT table and all certificates

Design resources

Articles

Datasheet

  • Harmony PI Filter datasheet, Rev 9PDF, 14 pages, March 2026 Download

Getting started

  • Harmony Quick Start GuidePDF, 7 pages, rev 25V3 Request
  • EVB Read Me: how Harmony works with bulk capacitorsPDF, 15 pages Request

CAD models

  • Altium Designer footprint, TSNJ-5A6L26.PcbLibLand pattern per datasheet §4, 108 KB Download
  • Altium Designer schematic symbol, TSNJ-5A6L26.SchLibPins 1 VIN, 3 VOUT, 2/4/5/6 GND, 6 KB Download
  • 3D model, TSNJ-5A6L26.stpSTEP, 2.60 × 2.20 × 0.90 mm, 30 KB Download

Layout

  • PCB layout guideline: grounding and bulk-capacitor placementPDF, rev 25V3 Request

Application notes

  • Optimizing the ADI LT3045 ultra-low-noise LDO with HarmonyPDF, 4 pages Request
  • Ultra-low phase noise: 122.88 MHz VCXO for 5GPDF, 1 page Request
  • Why the classic target-impedance approach is not effectivePDF, 11 pages Request
  • Noise-free Silent Switcher: ADI LT8622S posterPNG Request

Case studies

  • TransSiP Noise Free Innovations: application examplesPDF, 23 pages, rev 26V2 Request

Quality and compliance

  • RoHS 3 certificate of compliancePDF, TSQA-RoHS3 Download
  • EU REACH certificate of compliancePDF, 13 pages, TSQA-REACH, February 2026 Download
  • Halogen-free certificate (IEC 61249-2-21)PDF, TSQA-HF Download
  • TSNJ-5A6L26 reliability qualification (RTV program)PDF, 3 pages, TSQA-TSNJ-RTV Download
  • TSNJ-5A6L26 FIT and MTTF predictionPDF, 2 pages, TSQA2407, July 2024 Download

"Request" items ship together in the Harmony Materials Package. One request covers all of them, and we send the package to your work email.

Videos

IMS 2025: Harmony noise-free filter demo by Dr. Shahriar Shahramian

Dr. Shahriar Shahramian, Director of the ASICs & Packaging Research Lab at Nokia Bell Labs and founder of The Signal Path, demonstrates the TSNJ-5A6L26.

LT8622S switching noise, part 2: the Silent Switcher becomes noise-free

Harmony takes the 2 MHz fundamental from about −59 dBm to −97 dBm (≈ 8.9 µVp-p) and removes microwave spurs.

Silent Switcher EMI, part 2: one filter at the point of load

A single TSNJ-5A6L26 at the point of load restores the rail to the Silent Switcher’s own noise floor, and even lower.

Buy

Every orderable model in the Harmony family, with list prices and inventory.

Model Description Package Packing, qty Temp range Price, 1 pc Price, 1k pcs RoHS Inventory
TSNJ-5A6L26 Harmony PI Filter, 5 A LGA-2226 Cut strip, 1+; Reel, 3,000 −55 °C to +85 °C $4.22 $2.66 Yes In stock
Buy Quote
Harmony EVB Type-B Harmony Type-B evaluation board Evaluation board, SMA in and out Evaluation board, 1 to 3 Lab use $85.00 Quote Yes 3 in stock Buy Quote

List prices are in USD for the stated quantity and are subject to change. Volume pricing and delivery schedules are available by quote. Distributor stock is a snapshot taken Oct 24, 2026.

Evaluate on your rail

The Harmony EVB Type-B connects between your supply and your load with two SMA cables, so you can measure the difference before you lay out a board. Parts are also sold from a single piece.

See the evaluation board

Volume and custom quotes

For 1,000 pieces or more, scheduled deliveries or custom ratings, we reply with price and lead time.

Request a quote

Distributors

Harmony is stocked at DigiKey, which ships globally, and through regional partners in China, Israel, Turkey, Italy, Taiwan, Korea and Japan.

See all distributors

Related products

Harmony Type-B evaluation board

Harmony EVB Type-B. A TSNJ-5A6L26 with two 47 µF capacitors between SMA connectors. Drop it between any noisy supply and its load with two cables.

$85.00 per board, 3 in stock

View Harmony EVB Type-B