Typical applications: • Avionic flight controls • Airborne systems • Naval electronics • Military, aerospace, or commercial aircraft The N & K and 77000 & CSN series are ultra-miniature transformers in an encapsulated package with design layouts as through-hole or surface mount types. They can operate over a wide temperature range of -55°C to +130°C. Our proprietary materials and methods allow extreme temperatures of vapor phase, IR or other reflow procedures without degrading the high reliability of their physical form and electrical performance. • Extreme resistance to impact, shock, and vibration • Manufactured to MIL-PrF-27, Class S, Grade 5 • High reliability for space and mission critical applications • Ultra miniature in size and minimalistic design • Design layouts in straight plug-in, insulated leads, square sMt, or round SMT • Available with magnetic shielding and/or electrostatic shielding • Certain parts are QPL approved Contact Pico for part number of available options: • Screening and qualification criteria to flight standard • Capability to thermal shock up to 300 cycles • Extra layers of magnetic shielding • Fully RoHS compliant or with exemption 7(a) • Modifications to mechanical design and electrical characteristics • Custom new design and parameters

SPECIFICATIONS Audio Transformer PICO Through Hole (2)

(STRAIGHT LEADS) Audio Transformer (INSULATED LEADS) (SQUARE SURFACE MOUNT) PICO Through Hole (2)

(STRAIGHT LEADS) Audio Transformer K SERIES (INSULATED LEADS) (SQUARE SURFACE MOUNT) PICO Through Hole (2)

(STRAIGHT LEADS) Audio Transformer (INSULATED LEADS) (SQUARE SURFACE MOUNT) PICO Through Hole (2)

N & K • 77000 & CSN Series SPECIFICATIONS N SERIES (STRAIGHT LEADS) Audio Transformer (INSULATED LEADS) (SQUARE SURFACE MOUNT) PICO Through Hole (2)

SPECIFICATIONS Audio Transformer PICO (1) Note 1: Includes electrostatic shield Note 2: For RoHS compliance on a through-hole component, please consult with Pico's engineer and provide the part number. Note 3: All SMDs are available with Pb-free dipped terminals that is compliant to RoHS exemption 7 by requesting part number + '-RoHS-7'

Note 4: Screening and qualification tests are not limited to the options in the chart above. Each standard may also be stringent or exclude certain tests from one another. Please contact Pico for specific application needs and for Pico part number.

N & K · 77000 & CSN Series Audio Transformer ELECTRICAL SCHEMATIC N SERIES - THROUGH HOLE SPLIT SECONDARIES SPLIT SECONDARIES SERIES CONNECTION PARALLEL CONNECTION ELECTROSTATIC SHIELD K SERIES - INSULATED LEADS SPLIT SECONDARIES SPLIT SECONDARIES SERIES CONNECTION PARALLEL CONNECTION BLACK GREEN ELECTROSTATIC SHIELD 77000 & CSN SERIES - SURFACE MOUNT SPLIT SECONDARIES SERIES CONNECTION SPLIT SECONDARIES PARALLEL CONNECTION ELECTROSTATIC SHIELD NOTES a. ANY TERMINALS NOT SHOWN HERE MAY BE USED FOR MECHANICAL STABILITY ON THE PCB ONLY, AS THEY DO NOT HAVE ANY ELECTRICAL CONNECTION. b. CT STANDS...

N & K · 77000 & CSN Series Audio Transformer MECHANICAL DRAWINGS K SERIES - INSULATED LEADS N SERIES - THROUGH HOLE BOTTOM VIEW NOTES a. ALL DIMENSIONS ARE IN INCHES, [ ] = MM b. TERMINALS ARE CLOCKWISE FROM PIN #1 2025 REV 1

N & K · 77000 & CSN Series Audio Transformer MECHANICAL DRAWINGS 77000 SERIES - SQUARE SURFACE MOUNT .550 [13.970] LEAD DETAILS NOTES a. ALL DIMENSIONS ARE IN INCHES, [ ] = MM b. TERMINALS ARE CLOCKWISE FROM PIN #1 c. PIN #4 HAS NO CONNECTION BOTTOM VIEW CSN SERIES - ROUND SURFACE MOUNT Ø. 500 [Ø 12.700] NOTES a. ALL DIMENSIONS ARE IN INCHES, [ ] = MM b. TERMINALS ARE CLOCKWISE FROM PIN #1 c. PIN #4 HAS NO CONNECTION BOTTOM VIEW

Audio Transformer PICO RECOMMENDED LAND PATTERN DIMENSIONS SERIES 77000 - SQUARE SURFACE MOUNT SERIES CSN - ROUND SURFACE MOUNT BOX PACKAGING - N & K SERIES -TRANSFORMER CARDBOARD CARRIER

N & K · 77000 & CSN Series Audio Transformer TUBE PACKAGING - 77000 & CSN SERIES PLAN VIEW ELEVATION VIEW UNSEALED TUBE PACKAGE TUBE PLUG TUBE PLUG Pico warrants each product manufactured by us and sold by us or an authorized representative, to be free from defects in material and workmanship. If properly used, it will perform within its applicable specifications for a period of one year after original shipment. Pico’s obligation under this guarantee is limited to repairing or replacing our product to the original purchaser. This warranty is in lieu of all other warranties, express or implied...