Microtest: Buy in India
Authorized India Partner · GSAS Micro Systems
Microtest × GSAS
Microtest Corporation, headquartered in Taoyuan City, Taiwan, was established in 1993 and specializes in high-precision automatic test and measurement instruments. The company is known for its strong focus on innovation and R&D, delivering reliable and advanced testing solutions for industries such as automotive, electronics manufacturing, transformer and inductor production, and component inspection.
Microtest offers a comprehensive portfolio including cable & harness testers, LCR meters, impedance analyzers, transformer and winding testers, and automated production test systems. Its engineering-driven approach ensures high accuracy, repeatability, and customization to meet evolving industry requirements.
With a strong presence across Asia and global markets, Microtest is recognized as a trusted partner for production and quality assurance applications. GSAS has been an authorized Microtest partner since 2023, providing application support, system integration guidance, and localized commercial and technical support for Indian manufacturers.
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Microtest Products by Category
Cable and Harness Testers: Continuity, Hipot, and Insulation Testing
4-Wire Cable Harness Tester
Test continuity, insulation resistance, hipot withstand, and wiring correctness on cable assemblies with hundreds of conductors. Programmable test sequences and barcode-triggered test selection support mixed-model automotive, aerospace, and industrial production lines.
2-Wire Tester and USB-C Cable Tester
Affordable harness QC for simpler cable configurations. The USB Type-C cable tester handles high-speed data cable qualification for consumer electronics and automotive infotainment production.
LCR Meters and Impedance Analyzers: Precision Component Measurement
6360 and 6621 Series Precision LCR Meters
Measure capacitors, inductors, resistors, and complex impedance networks. The 6360 Series spans 1 mHz to 1 MHz across five models at 0.05% basic accuracy; the 6621 Series reaches 30 MHz at a typical 0.05%. Bin sorting and handler interfaces support both engineering characterization and production-line incoming inspection.
Impedance Analyzer and Multichannel LCR
Analyze ferrite, EMI filter, and resonant circuit impedance across extended frequency ranges. Multichannel LCR meters measure multiple components on a single fixture for high-throughput production. DC Bias Current Test Systems simulate real-world core saturation effects on inductance.
Transformer and Winding Testers: Production QC for Power Magnetics
Transformer Test System
Measure turns ratio, inductance, DC resistance, leakage inductance, interwinding capacitance, polarity, and hipot in automated sequences. Pass/fail sorting with SPC covers power transformers, signal transformers, current transformers, inductors, and chokes.
Impulse Winding Tester
Catch shorted turns and layer shorts during winding, before potting or assembly. Provides end-to-end quality coverage from raw winding through finished product on Indian transformer and inductor production lines.
DC Bias Current Test Systems: Inductor Saturation for AI Servers and EVs
With AI server infrastructure and electric vehicles driving demand for high-current power delivery, testing power inductors under real DC load is critical. Microtest DC Bias systems measure how inductance changes under bias current, verifying magnetic saturation (Isat) and temperature rise (Irms).
The 6632+ system pairs the 6632 Impedance Analyzer (10 Hz–50 MHz) with DC bias sources up to 640A, for R&D characterization. The 6350+ system uses an LCR Meter (10 Hz–500 kHz) with up to 320A, cost-effective for production-line Isat verification.
DC Bias System Comparison
| Feature | 6632+ System | 6350+ System |
|---|---|---|
| Analyzer | Impedance Analyzer | LCR Meter |
| Frequency Range | 10 Hz – 50 MHz | 10 Hz – 500 kHz |
| Max DC Bias Current | 640A (6243H) | 320A (6243) |
| Equivalent Circuit | Yes (S series) | No |
| Isat / Irms Scanning | Yes | Yes |
| Best For | R&D characterization | Production verification |
Hipot Tester Comparison
| Feature | 7630 | 7631 |
|---|---|---|
| Channels | Single channel | 8 |
| AC Hipot | 10 V – 5 kV, max 30 mA | 10 V – 5 kV, max 30 mA |
| DC Hipot | 10 V – 6 kV, max 10 mA | 10 V – 6 kV, max 10 mA |
| Insulation Resistance | 1 MΩ – 12 GΩ (10 V – 1000 Vdc) | 1 MΩ – 12 GΩ (10 V – 1000 Vdc) |
| Voltage Accuracy | ±(3% of setting + 5 V) | ±(3% of setting + 5 V) |
| List Mode | Up to 16 steps | Up to 32 steps |
| Built-in Storage | 30 sets | 15 sets |
| Expansion | - | 7508 (8ch) / 7516 (16ch) boxes |
Impulse Winding Tester Comparison
| Feature | 7700 | 7703 | 7750 Series | 7759 Series |
|---|---|---|---|---|
| Channels | 2 | 2 | 1 | 9 |
| Impulse Voltage | 200 V - 5000 V | 100 V - 5000 V | 10 V - 10000 V (model dependent) | 100 V - 5200 V |
| Lowest Inductance | 50 uH | 0.5 uH | 0.1 uH (1S/1F) | 1 uH |
| Voltage Accuracy | ±2% | ±2% | - | - |
| Sampling | - | - | 200 MHz / 9-bit (5E 50 MHz, 5H 100 MHz) | 200 MHz / 9-bit |
| Speed | 50 ms measurement | 50 ms measurement | 10 tests/sec | 10 tests/sec |
| HARM / HFLT Analysis | - | Yes | - | - |
| Best For | Entry-level | Production line | R&D high-voltage | Multi-point production |
Cable Tester Comparison
| Feature | 8740 Series | 8761 Series | 8740K Series | 8761K Series | 8761NAC |
|---|---|---|---|---|---|
| Wire Measurement | 2-wire | 4-wire | 2-wire | 4-wire | 4-wire |
| Continuity | 100 mΩ–52 Ω | 1 mΩ–52 Ω | 100 mΩ–52 Ω | 1 mΩ–52 Ω | 1 mΩ–52 Ω |
| Test Points | 128 / 256 / 512 | 64 / 128 / 256 | 1024 | 512 | 64 / 128 |
| AC Hipot | 100–1000 V (FA), 100–700 V (NA) | 100–1000 V (FA), 100–700 V (NA) | 100–700 V (NAK) | 100–700 V (NAK) | 100–700 V |
| DC Hipot | 50–1500 V (FA), 50–1000 V (NA/N) | 50–1500 V (FA), 50–1000 V (NA/N) | 50–1000 V | 50–1000 V | 50–1000 V |
| Insulation Resistance | 1 MΩ–1.2 GΩ | 1 MΩ–1.2 GΩ | 1 MΩ–1.2 GΩ | 1 MΩ–1.2 GΩ | 1 MΩ–1.2 GΩ |
| Arcing Detection | 1–8 | 1–48 | 1–8 | 1–48 | 1–48 |
| USB-C | - | - | - | - | Yes |
Microtest DCS-3100 DC Power Supply: ATE and EV Battery Testing
DCS-3100 Series Programmable DC Power Supply
Constant-voltage/constant-current programmable supplies from 400 W to 2000 W. The 400 W DCS-3104 variants span 0–40 V/40 A, 0–80 V/20 A, 0–240 V/5 A, and 0–650 V/1.85 A, with programmable internal resistance for battery V-I curve replication. Covers semiconductor ATE bias, EV power module validation, and BMS test in India's electronics and automotive sector.
Multi-Unit and ATE Configurations
The DCS-3100 series is built for multi-unit ATE racks, where several supplies are driven from one controller rather than wired individually. Wide-range output means a single model covers a voltage and current envelope that would otherwise need two supplies: the 400 W DCS-3104A delivers up to 40 V or up to 40 A within its 400 W envelope, and the same wide-range principle scales through the 800 W, 1200 W, and 2000 W models.
Why Buy Microtest from GSAS India
GSAS is an authorized Microtest partner with 41 instruments, INR invoicing, application engineering, and calibration support. Our engineers in Bengaluru, Hyderabad, Chennai, Pune, Mumbai, and Delhi NCR help manufacturing teams select and deploy the right Microtest instruments.
For DC Bias testing, the fastest-growing segment driven by AI server and EV power electronics, GSAS provides complete system configuration from impedance analyzer selection through MES integration.
LCR Meter Comparison
Microtest LCR meters cover frequencies from 10 Hz to 50 MHz with accuracy from 0.05%. Compare models to find the right balance of frequency range, accuracy, and features.
LCR Meter Comparison
All models include four-terminal measurement, bin sorting, and a handler interface for automated component sorting.
| Feature | 6360 Series | 6365A / 6367A | 6621 Series | 6630 Series |
|---|---|---|---|---|
| Frequency Range | 1 mHz – 1 MHz (6363–6367) | 0.1 Hz – 200 kHz / 0.1 Hz – 1 MHz | 10 Hz – 30 MHz | 10 Hz – 50 MHz |
| Basic Accuracy | ±0.05% | ±0.05% | Typical ±0.05% | Typical ±0.05% |
| Measurement Speed | Max. 8 ms | Max. 8 ms | < 3 ms | < 3 ms |
| AC Test Signal | 10 mV – 2 Vrms | 10 mV – 2 Vrms | 10 mV – 2 Vrms (100 Ω) / 1 Vrms (25 Ω) | 10 mV – 2 Vrms (100 Ω) / 1 Vrms (25 Ω) |
| Output Impedance | 100 Ω | 100 Ω | 25 Ω / 100 Ω switchable | 25 Ω / 100 Ω switchable |
| Measurement Modes | Meter, list | Meter, list | Meter, list | Meter, list |
| Bin Sorting | ✓ | ✓ | ✓ (9 comparators) | ✓ (9 comparators) |
| Handler Interface | ✓ | ✓ | ✓ | ✓ |
| Built-in Storage | 128 sets | 128 sets | 100 sets + 50 list groups | 100 sets + 50 list groups |
| Best For | Production QC, incoming inspection | Electrochemical and battery impedance | MHz-range component test | High-frequency characterisation |
Cable & Harness Tester Comparison
From 2-wire continuity to 4-wire Kelvin + Hipot + USB-C qualification. Compare cable testers for your production requirements.
Cable & Harness Tester Comparison
All models include programmable test sequences, barcode-triggered test selection, and handler interface for production line integration.
| Feature | 2-Wire Tester | 4-Wire Tester | USB-C Tester |
|---|---|---|---|
| Measurement Type | Continuity + Hipot | Continuity + Hipot + Kelvin R | Continuity + Hipot + USB-C |
| Test Points | Up to 128 | Up to 512 | USB-C pinout (24 pins) |
| Kelvin (4-Wire) Resistance | - | ✓ mΩ precision | - |
| Hipot Withstand | ✓ AC/DC | ✓ AC/DC | ✓ AC/DC |
| Insulation Resistance | ✓ | ✓ | ✓ |
| USB-C E-Marker | - | - | ✓ |
| Barcode Trigger | ✓ | ✓ | ✓ |
| Handler Interface | ✓ | ✓ | ✓ |
| Best For | Simple harnesses | Automotive / aerospace | USB-C cable production |
DC Bias Current System Comparison
Compare 6632+ (640A, impedance analyzer) vs 6350+ (320A, LCR meter) DC bias systems for inductor saturation testing.
Hipot Tester Comparison
Compare the 7630 (single channel) and 7631 (8 channel) safety testers for AC withstand, DC withstand, and insulation resistance.
Impulse Winding Tester Comparison
Compare 7700, 7703, 7750, and 7759 impulse winding testers for motor and transformer QC.
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Application Support
India-wide
Local Support
- Application engineering: test sequence programming, fixture design, handler interface configuration
- Production line integration: connecting Microtest instruments to MES and barcode-triggered workflows
- Calibration coordination: scheduled calibration and annual maintenance contracts
- Demo and evaluation units available from Bengaluru, Chennai, Hyderabad, Delhi NCR, Mumbai, and Pune
- Local procurement: INR invoicing on all 41 Microtest instruments (LCR meters, impedance analyzers, DC bias systems, cable testers, transformer testers, impulse winding testers, hipot testers, motor test systems, power analyzers, DC power supplies) with GeM, SAP Ariba, Coupa, and TReDS support
Microtest's India design and customer footprint clusters in Bengaluru, India's largest embedded systems and semiconductor design hub. Read our Bengaluru engineering ecosystem guide →
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Microtest Insights
Power Measurement for Server PSUs: Microtest 7140 Power Analyzer
Server power supplies must meet efficiency standards from full load down to standby. The Microtest 7140 measures power from 0.001 W standby to 16 kW full load in a single instrument.
Wireless Charger QC Testing with the Microtest 9901
Wireless charger production requires protocol verification, FOD compliance testing, and statistical quality control. The Microtest 9901 automates the full test sequence for PD, QC, and DC-DC power products up to 150 W.
Motor Stator Testing in EV Manufacturing: Microtest MT-6910 Series
A motor stator is the stationary assembly that generates the rotating magnetic field, the part that makes the motor work.
PCB Incoming Inspection with Multichannel LCR Testing
A populated PCB might carry fifty or more passive components, inductors, capacitors, resistors, each specified to tolerances that the assembled circui...
Hipot Testing for Indian Manufacturers: Microtest 7630/7631 Series
Dielectric withstand and insulation resistance testing is mandatory for safety compliance. The Microtest 7630 and 7631 hipot testers scale from single-channel bench testing to multi-channel production automation.
Impulse Winding Testing for Motor and Transformer Manufacturers
Hipot testing catches gross insulation failures. Impulse winding testing catches shorted turns, the defect class that hipot misses but that causes motors and transformers to fail in the field.
Microtest 4-Wire Cable Harness Tester: Why Kelvin Measurement Matters for Production Quality
A technical deep dive into the Microtest 4-wire cable harness tester, Kelvin resistance measurement, hipot testing, wiring correctness verification, and production integration for Indian automotive and aerospace harness manufacturers.
Microtest 6632 Impedance Analyzer: From Component QC to Material Characterisation
An impedance analyzer does everything an LCR meter does, and then goes further.
Microtest 6632+ vs 6350+ DC Bias Systems: Which One Fits Your Lab?
Both the Microtest 6632+ and 6350+ measure inductor saturation under DC bias, but they start from different instruments with different frequency ranges and cost profiles. Here is how to choose between them.
Temperature Rise Current (Irms) Testing for EV Power Inductors
Irms, the current that causes a specified temperature rise in an inductor, sets the thermal operating limit distinct from magnetic saturation. For EV power electronics, both limits matter.
DC Bias Current Testing for AI Server Power Inductors
A single AI server rack can draw 40 kW or more. The power delivery network converting 48 V bus power down to the sub-1 V rails that feed GPU and acceler...
Setting Up Incoming Inspection for Passive Components: A Practical Guide for Indian Manufacturers
How to establish an effective incoming inspection process for resistors, capacitors, and inductors using LCR meters, sample plans, test frequencies, acceptance criteria, and SPC trending for Indian electronics manufacturing.
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