# 1009 Wayne Kerr DC Bias Fixture New ## Wayne Kerr 1009 DC Bias Fixture — Key Features at a Glance - **Function:** SMD-inductor test fixture that enables DC bias currents up to 50 A during component test - **Operates with:** one or two 3265B DC Bias Units and a Wayne Kerr 3260B Precision Magnetics Analyzer - **Connection:** four front-panel-mounted BNC connectors and two captive high-current cables to the 3265B - **Component carriers:** interchangeable test carriers accommodate a wide variety of SMD devices; blank carriers available for device-specific designs - **Safety:** enclosed fixture with safety interlocks minimizes operator risk during high-current testing - **Stable fixturing** for high accuracy and repeatable measurements - **Optional:** 1009 50 A lead set (5-328-2005) required when paralleling two 3265B/25A units - **Order code:** 1J1009 Processed / reviewed In summary, the Wayne Kerr 1009 DC Bias Fixture is a component test fixture used with the 3260B Precision Magnetics Analyzer and one or two 3265B DC Bias Units. It enables DC bias currents of up to 50 A to be applied to surface-mount inductors during measurement, so that L, Z, R, Q, and D can be characterized at the device's operating current — not just at small signal. ### What is the Wayne Kerr 1009 DC Bias Fixture used for? The 1009 is used to characterize SMD inductors and other surface-mount magnetic components at the bias currents they actually carry in the end application. Power-supply designers use the 1009 to verify that an SMD choke holds its design inductance under load; SMD inductor manufacturers use it for incoming and outgoing quality test against published L vs. I curves. ### How does the 1009 connect to the rest of the system? Four front-panel BNC connectors carry the AC measurement signals from the 3260B analyzer; two captive high-current cables connect to the 3265B DC Bias Unit. When two 3265B/25A units are paralleled to reach the full 50 A current, the optional 1009 50 A lead set (5-328-2005) is required. Interchangeable component test carriers seat the SMD device in a defined, low-parasitic measurement geometry. Factually, the 1009 enables up to 50 A DC bias on an SMD inductor during component test, applies that current via the captive cables from one or two 3265B DC Bias Units, and measures the device through the 3260B Precision Magnetics Analyzer at frequencies up to 3 MHz (when paired with the 3265BQ/25A). Enclosed fixturing with safety interlocks minimizes operator exposure to high currents. Wayne Kerr is one of the primary precision-impedance brands used in component-engineering laboratories worldwide, recognized alongside Keysight and Hioki for inductor and transformer characterization. The 1009 fixture extends the 3260B/3265B platform into the SMD-inductor segment that dominates modern power converter design. Typical use cases for the 1009 include: - SMD power-inductor saturation characterization for DC-DC converter design - Incoming quality test of high-current SMD chokes against datasheet L vs. I specifications - Outgoing QC at SMD inductor manufacturers — verifying production parts behave within tolerance at rated current - Development of device-specific test carriers using the available blank carriers, or via the Wayne Kerr carrier design and manufacturing service ## Accessories Supplied The 1009 DC Bias Fixture is supplied with user documentation. Component test carriers and the optional 50 A lead set are ordered separately as listed below. ### Related Order Codes Accessory Description Order Code Kelvin clip leads (fine jaws) **1EVA40100** Kelvin clip leads (large jaws) **1EVA40180** Power transfer bus bars **4-324-6009-PAIR** Filter pad (washable) **HMDEC10** 1009 DC bias fixture **1J1009** 1009 50A lead set **5-328-2005** ## Wayne Kerr 1009 — Core Specifications The 1009 is a passive test fixture used in conjunction with the 3260B Precision Magnetics Analyzer and one or two 3265B DC Bias Units. Specifications below are reproduced verbatim from the Wayne Kerr Technical Data Sheet. Function SMD-inductor test fixture for component test with DC bias currents up to 50 A Maximum DC Bias Current 50 A (requires two 3265B/25A units paralleled with the optional 1009 50 A lead set, 5-328-2005) Compatible Host Analyzer 3260B Precision Magnetics Analyzer Compatible DC Bias Units One or two 3265B DC Bias Units (3265BQ/25A, 3265B/25A, 3265B/10A, or 3265B/5A) Front-Panel Connections Four BNC connectors (AC measurement path) plus two captive high-current cables to the 3265B Component Mounting Interchangeable component test carriers for a wide variety of SMD devices. Blank carriers available for device-specific designs; carrier design and manufacturing service available from Wayne Kerr. Safety Enclosed fixture with safety interlocks. Stable component fixturing for high accuracy and repeatable measurements. Order Code 1J1009 Optional 50 A Lead Set 5-328-2005 (required when two 3265B/25A units are used in parallel) **⚠ Important — System Configuration** The 1009 is a fixture, not a measurement instrument. It must be used with a 3260B Precision Magnetics Analyzer and at least one 3265B DC Bias Unit. To reach the full 50 A capability, two 3265B/25A units plus the optional 1009 50 A lead set (5-328-2005) are required. Contact your Test Architect to confirm the full configuration for your application. This webpage was written by a human with an A.I. "Intern", which may contain errors. Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer. ## Details - **Price:** 0.0 USD - **Vendor:** Wayne Kerr - **Type:** Fixture - **Tags:** Fixture, Manufacturers, Other Equipment, product_manual_group_1, Product_new, Wayne Kerr ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 0.00 USD | In stock | --- > Source: [ValueTronics](https://valuetronics.com/products/1009-wayne-kerr-dc-bias-fixture-new) > Updated: 2026-05-19