Product Overview
The MCP9600T-E/MX from Microchip Technology is a thermocouple EMF-to-digital converter with 18-bit resolution, cold-junction compensation, and I2C interface in a QFN-20 package.
Key Specifications
| Type | Thermocouple-to-Digital Converter |
| Thermocouple Types | K, J, T, N, S, E, B, R |
| Resolution | 18-bit (0.0625C per LSB) |
| Accuracy | +/-1.5C (K-type, -200C to +1372C) |
| Cold-Junction Compensation | Internal (+/-0.5C accuracy) |
| Interface | I2C (up to 1 MHz) |
| Supply Voltage | 2.7V to 5.5V |
| Current Consumption | 300 uA (typical, active) |
| Alert Outputs | 4 configurable alert pins |
| Package | QFN-20 (5 x 5 x 0.9 mm) |
| Operating Temperature | -40C to +125C (ambient) |
Features
- Supports 8 thermocouple types (K, J, T, N, S, E, B, R)
- 18-bit resolution with 0.0625C temperature step
- Integrated cold-junction compensation
- Industrial furnace temperature monitoring
- Oven and kiln control
- Automotive exhaust gas temperature
- Laboratory instrumentation
- Industrial furnace K-type thermocouple monitoring to 1372C with 0.0625C resolution
- Multi-zone oven control with 4 alert outputs for independent over-temp shutdown
- Automotive EGT (exhaust gas temperature) with K-type sensor and cold-junction compensation
- Laboratory calibration with S-type thermocouple and +/-1.5C accuracy
- Automotive Electronics: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
- Medical Devices: High-reliability components meet medical industry safety and compliance regulations, ensuring stable operation for medical equipment.
- Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.
- Accepted Payment Methods
- T/T (Bank Wire Transfer): The primary settlement method for bulk orders and a widely used international payment channel.
- PayPal: Ideal for small orders, sample orders and quick payments.
Settlement Currency
US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.
Bank Charges
All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.
- Payment Requirements
- Sample and small orders: Shipment will be arranged upon full payment.
- In-stock bulk orders: Goods will be delivered within 2 to 3 working days after full payment.
- Logistics Partners
- International Express: DHL, FedEx, UPS, TNT
- Economy Logistics: Air freight and sea freight for large-volume cargo
- Domestic Delivery: SF Express, Yunda Express
- Order Processing Time
- In-stock items: Orders confirmed and fully paid before 14:00 (GMT+8) will be shipped on the same day. All other orders will be dispatched within 1 to 2 working days.
- Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
- Estimated Transit Time
- International Express: 3 – 7 working days globally
- Air Freight: 7 – 12 working days
- Sea Freight: 25 – 40 working days for heavy and large bulk cargo
- Shipping Fee Rules
- Shipping cost is calculated based on package weight, volume, destination and delivery method.
- Both freight prepaid and freight collect are available. Please provide your courier account number in advance if you choose freight collect.
- Free international express delivery is offered for large orders. Terms for long-term partners can be negotiated separately.
- Shipment Tracking
Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.
MOQ & Sample Service
We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.
Packaging Standard
All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.
Import Duties & Taxes
All import duties, customs clearance fees and local taxes incurred for international shipments shall be borne by the buyer. We will provide complete customs documents to assist you with clearance procedures.
- Handling of Lost or Damaged Goods
- In case of loss or severe damage during transit, please contact us within 48 hours after receiving the tracking information. We will assist you in filing a claim with the logistics provider.
- We shall not be liable for any losses caused by incorrect delivery address, wrong contact information or the buyer’s refusal to complete customs clearance.
- Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
- Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
- Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.
- All components are packed separately to avoid damage caused by friction and collision;
- Shockproof buffer materials are added for fragile products to ensure transportation safety;
- Each package is clearly marked with part number, quantity, batch number and specifications for easy inventory counting and management.
- Anti-static Packaging: Static-sensitive components such as chips, circuit boards and sensors are packaged with anti-static bags, shielding boxes and conductive foam in strict accordance with international anti-static standards to prevent static damage.
- Vacuum Moisture-proof Packaging: Moisture-sensitive components are vacuum-sealed with desiccants to isolate humid air, suitable for ocean transportation and long-term storage.
- Original Factory Packaging: Integrated circuits of brands such as NXP are delivered with original reels, trays or tubes by default, retaining complete original packaging and adapting to automated SMT production lines.
- Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
- Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.
Applications
The MCP9600T-E/MX from Microchip Technology is a fully integrated thermocouple-to-digital converter that eliminates the need for external cold-junction compensation, signal conditioning, and ADC circuitry. The device supports 8 standard thermocouple types (K, J, T, N, S, E, B, R) with selectable NIST-standard conversion tables stored in internal ROM. The 18-bit resolution provides 0.0625C temperature steps, while the +/-1.5C accuracy for K-type thermocouples covers the full -200C to +1372C measurement range. The internal cold-junction compensation sensor achieves +/-0.5C accuracy, automatically applying the correction to the thermocouple reading. Four configurable alert outputs with independent thresholds enable hardware-level over-temperature, under-temperature, and window detection without MCU polling. The I2C interface supports up to 1 MHz (FM+) for fast data readout. The QFN-20 package provides a compact footprint with an exposed pad for thermal coupling to the cold junction.
The MCP9600 integrates a precision instrumentation amplifier, a high-resolution delta-sigma ADC, a cold-junction temperature sensor, and NIST-standard thermocouple lookup tables. The thermocouple generates a small Seebeck voltage proportional to the temperature difference between the hot junction (measurement point) and the cold junction (connection point). The instrumentation amplifier amplifies this millivolt-level signal with low noise and high input impedance. Simultaneously, the internal cold-junction temperature sensor (a silicon bandgap sensor) measures the temperature at the thermocouple connection point. The ADC digitizes the amplified Seebeck voltage, and the digital logic adds the cold-junction temperature to the thermocouple EMF reading using the NIST-standard lookup table for the selected thermocouple type, outputting the absolute hot-junction temperature directly. The 18-bit resolution is achieved through a 3rd-order delta-sigma modulator with decimation filtering. The 4 alert comparators operate on the digital temperature value with programmable hysteresis and interrupt behavior.
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VDD | Power | Supply voltage (2.7-5.5V) |
| 2-5 | Alert 1-4 | Output | Configurable temperature alerts (active LOW) |
| 6 | GND | Power | Ground |
| 7 | SCL | Input | I2C clock |
| 8 | SDA | I/O | I2C data |
| 9 | ADDR | Input | I2C address select (7 options) |
| 10 | VIN+ | Input | Thermocouple positive input |
| 11 | VIN- | Input | Thermocouple negative input |
| 12-20 | GND/NC | – | Ground / No connect / Exposed pad |
| Manufacturer | Part Number | Package | Notes |
|---|---|---|---|
| Microchip | MCP9601T-E/MX | QFN-20 | Same but without alert outputs |
| ADI (Maxim) | MAX31855KASA+ | SOIC-8 | K-type only, SPI, 14-bit |
| ADI (Maxim) | MAX31856MUD+ | TSSOP-14 | Multi-type, SPI, 19-bit |
| TI | ADS1220IPWR | TSSOP-16 | 24-bit ADC, requires external CJC |
| ST | LTC2983 | LQFP-48 | Multi-channel, more features |
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