The Keysight Agilent 4268A is a high-speed, precision 120 Hz / 1 kHz capacitance meter designed specifically for production-line testing of high-value multilayer ceramic capacitors (MLCCs). Offering constant-voltage AC test signals up to 1 V rms in compliance with IEC 384-10, it enables accurate testing of high-capacitance components at measurement speeds down to 25 ms. With built-in comparator sorting, a quick contact-check function, and flexible interface options, the 4268A maximizes manufacturing throughput while ensuring highly reliable measurement quality.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (IEEE-488), Handler (standard), Scanner (optional, Option 101) |
| Display | Character LCD display |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 90 V to 132 V AC or 198 V to 264 V AC, 47 Hz to 66 Hz, < 45 VA |
| Operating Temperature | 0 °C to 45 °C |
| Dimensions (W×H×D) | 320 mm × 100 mm × 300 mm |
| Weight | 4.5 |
| Measurement Terminal Configuration | 4-terminal pair |
Measurement Capabilities
| Parameter | Value |
|---|---|
| Primary Parameters | Capacitance (Cp, Cs) |
| Secondary Parameters | Dissipation Factor (D) |
| Equivalent Circuit Modes | Series, Parallel |
| Capacitance Measurement Range (1 kHz) | 10 pF to 15 µF (constant voltage mode: up to 10 µF) |
| Capacitance Measurement Range (120 Hz) | 100 pF to 100 µF (constant voltage mode: up to 60 µF) |
| Dissipation Factor (D) Range | 0.00001 to 9.99999 |
Test Signal Specifications
| Parameter | Value |
|---|---|
| Test Frequencies | 120 Hz, 1 kHz |
| Test Frequency Accuracy | ±0.01% |
| Normal AC Signal Level Range | 0.05 V to 1.0 V rms |
| Normal AC Signal Level Resolution | 0.01 V |
| Constant AC Signal Level Range | 0.1 V to 1.0 V rms |
| Constant AC Signal Level Resolution | 0.1 V |
| Internal DC Bias Voltage Settings | 0 V, 1.5 V, 2.0 V |
| DC Bias Voltage Accuracy | ±(5% + 2 mV) |
Accuracy and Speed
| Parameter | Value |
|---|---|
| Basic Capacitance Accuracy | ±0.07% (at 1 kHz) |
| Basic Dissipation Factor Accuracy | ±0.0005 (at 1 kHz) |
| Measurement Time (Fast, 1 kHz) | 9.7 ms |
| Measurement Time (Fast, 120 Hz) | 27 ms |
| Measurement Time (Medium, 1 kHz) | 26 ms |
| Measurement Time (Slow, 1 kHz) | 82 ms |
Correction and Compensation
| Parameter | Value |
|---|---|
| Open/Short Correction | Supported |
| Load Correction | Not supported |
Comparator and Binning Functions
| Parameter | Value |
|---|---|
| Comparator Binning Functions | 9-bin comparator for primary parameter sorting |
| Secondary Parameter Limits | 1-bin (In/Out) |
| Contact Check Function | Built-in Quick Contact Check (detects open/short test connection) |
System Interfaces and Connectivity
| Parameter | Value |
|---|---|
| Front Panel Test Ports | 4-terminal pair BNC configuration |
User Interface and Memory
| Parameter | Value |
|---|---|
| Internal Storage Capacity | 10 instrument setup configurations |
Environmental and Compliance
| Parameter | Value |
|---|---|
| Storage Temperature Range | -40 °C to 70 °C |
Measurement Signal
| Parameter | Value |
|---|---|
| Source Impedance (Normal Mode) | 100 Ω |
| Source Impedance (Constant Voltage Mode) | 25 Ω |
Measurement Configuration
| Parameter | Value |
|---|---|
| Averaging Range | 1 to 256 |
| Trigger Delay Range | 0 ms to 9.999 s (1 ms resolution) |
| Trigger Source Options | Internal, Manual, External (Handler), GPIB |
| Measurement Ranging Modes | Auto, Hold |
| Deviation Measurement Functions | Δ, Δ% |
Measurement Performance
| Parameter | Value |
|---|---|
| Test Signal Level Monitors | Voltage (Vm), Current (Im) |
Power Requirements
| Parameter | Value |
|---|---|
| AC Line Frequency Range | 47.5 Hz - 66 Hz |
| AC Line Input Voltage | 90 V - 132 V / 198 V - 264 V (automatic selection) |
| Maximum Power Consumption | 65 VA |
Software & Control
| Parameter | Value |
|---|---|
| Programming Language | SCPI |
Options
| Parameter | Value |
|---|---|
| Option 001 Internal DC Bias | 1.5 V and 2 V |
Performance
| Parameter | Value |
|---|---|
| Capacitance Display Range | 0.01 pF to 99.999 mF |
| Dissipation Factor (D) Display Range | 0.00001 to 9.99999 |
Compliance
| Parameter | Value |
|---|---|
| Safety Compliance | Conforms to IEC 61010-1 / EN 61010-1 |
| EMC Compliance | Conforms to EN 55011 / EN 50082-1 |
Accessories
| Parameter | Value |
|---|---|
| Compatible Test Fixtures | Keysight 16047A, 16047C, 16047D, 16047E, 16048A, 16048D, 16048E, 16089A, 16089B, 16089C, 16089D, 16089E |
Inputs & Outputs
| Parameter | Value |
|---|---|
| External Trigger Input | BNC (female) on rear panel |
| Handler Interface Connector | 36-pin Amphenol |
Technology
LCR Meter / Capacitance Meter
Applications
High-speed testing of high-value multi-layer ceramic capacitors (MLCC)