5965-4792.pdf - 第39页
U p to 3 G Hz (7 mm ) : SM D c ontinu ed Shor t compensation DUT measurement Rem ovin g a DU T Open compens ation Compens ation and measur ement 1 61 9 6A Parallel el ec trode S MD tes t fix ture continued 36 | Keysight …
Up to 3 GHz (7 mm): SMD continued
16196A Parallel electrode SMD test fixture continued
Options:
16196A-710 : Add the magnifying lens and tweezers
To maintain adequate measurement performance, keep the electrodes and the short
plate in good condition. Contaminants and abrasion on these parts considerably affect
measurement results, especially for low value measurements. Periodic fixture cleaning
and part replacement is recommended to avoid deterioration of measurement perfor-
mance. The 16196x fixtures are designed with simplicity in mind, so that an operator
can easily replace parts. Spare parts, which are likely to be abraded, are supplied with
the 16196U Maintenance Kit.
16196U Maintenance kit
Opt. 16196U-010: Upper electrode, 5 piece set (common to 16196A/B/C models)
Opt. 16196U-100: Short plate for 0603 (inch)/1608 (mm) size, 5 piece set (for 16196A)
Opt. 16196U-110: Lower electrode, 5 piece set (for 16196A)
Compensation and measurement: First of all, install the appropriate insulator as-
sembly into the fixture. Then, perform compensation. Open and short compensations
are recommended in combination with the electrical length compensation before
measurement. The fixture’s electrical length must be entered into the electrical length
compensation function of the measurement instrument first. Next, open compensation
is performed by placing the furnished open plate on top of the insulator assembly.
Short compensation is performed by placing the furnished shorting plate on top of the
insulator assembly. After performing open and short compensations in combination
with the electrical length compensation, the DUT is inserted into the test fixture. Once
the measurement of the DUT is complete, remove the DUT from the fixture, by using the
furnished push ring. The following figures show how compensation and measurement is
performed.
35 | Keysight | Accessories Catalog for Impedance Measurements - Catalog
16196B Parallel electrode SMD
test fixture
Terminal connector: 7 mm
DUT connection: 2-Terminal
Electrical length: 26.9 mm
Dimensions (approx.):
140 (W) x 48 (H) x 78 (D) [mm]
Weight (approx.): 250 g
Additional error:
f: frequency [GHz]
Up to 3 GHz (7 mm): SMD continued
1. Opt. 16196B-710 only
Type of error Impedance
Proportional error 1.0 x f
2
[%]
Open repeatability 5 + 40 x f [
µ
S]
Short repeatability 30 + 125 x f [mΩ]
Description P/N Qty.
Operation and service manual 16196-90040 1
Insulator assembly ϕ0.85 mm 16196-60212 1
Insulator assembly ϕ0.75 mm 16196-60213 1
Insulator assembly ϕ0.68 mm 16196-60214 1
Open plate 16196-29002 1
Short plate 16196-29027 1
Push ring 16196-24004 1
Magnifying lens
1
16193-60002 1
Tweezers
1
8710-2081 1
Wrench 8710-0909 1
Cleaning rod 5182-7586 1
Carrying case 16196-60250 1
Hole diameter of insulator
assembly (mm)
SMD case size examples
Length, width, height (mm)
16196B ϕ0.85 1.0 x 0.5 x 0.5
ϕ0.75 1.0 x 0.5 x 0.35
ϕ0.68 1.0 x 0.5 x 0.35
Description: This test fixture is designed for impedance evaluations of parallel electrode
SMDs. It achieves stable frequency characteristics up to 3 GHz and provides highly
repeatable measurements. The applicable SMD size code is 0402 (inch)/1005 (mm).
Applicable instrument: E4982A, E4990A + 42942A*, E4991B, E5061B-3L3/3L4/3L5
with Opt. 005 + 16201A
* Option E4990A-120 is required
Frequency: DC to 3 GHz
Maximum voltage: ±42 V peak max. (AC +DC)
Operating temperature: –55 to +85 °C
DUT size: The applicable SMD size is 0402 (inch) /1005 (mm).
For details, see the figure below.
The 16196B is furnished with three different insulator assemblies, since any gaps
between the DUT and the cylindrical insulator will result in improper positioning and
subsequent measurement errors. Select an insulator assembly that reduces the gap the
most. See the table below for dimensions of the insulator assemblies.
Furnished accessories:
37 | Keysight | Accessories Catalog for Impedance Measurements - Catalog