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Texas Instruments UC1610J
- Part No.:
- UC1610J
- Manufacturer:
- Texas Instruments
- Category:
- Bridge Rectifiers
- Package:
- -
- Datasheet:
-
UC1610J.pdf
- Description:
- BRIDGE RECTIFIER DIODE, SCHOTTKY
- Quantity:
- Payment:
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Inventory:76
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Product details
Overview
UC1610J from Texas Instruments is a monolithic dual Schottky diode bridge configured as an eight-diode array for flyback voltage clamping in high-current, low-duty-cycle inductive load circuits; features 50 V peak inverse voltage per diode, 1 A peak forward current, 0.5 V typical forward voltage at 100 mA, and operates across −55°C to 125°C in hermetic ceramic DIP-8 packaging.
For engineers reviewing the UC1610J datasheet, UC1610J pinout, UC1610J application, or UC1610J equivalent, this device is selected for bipolar stepper motor drive protection, inductive snubbing, and high-efficiency clamping where thermal stability in extended temperature environments is required.
Technical Context
The UC1610J integrates eight Schottky diodes in a dual full-bridge topology-two independent 4-diode bridges sharing common cathode and anode nodes-enabling bidirectional clamping of back-EMF in bipolar-driven stepper motor windings. Its monolithic ceramic construction ensures stable junction-to-case thermal resistance of 20°C/W.
Designed for −55°C to 125°C operation, the UC1610J delivers fast reverse recovery (15 ns) and low forward voltage (0.5 V typ. @ 100 mA), minimizing conduction loss and switching stress during transient suppression in flyback circuits with repetitive inductive turn-off events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak inverse voltage | 50 V per diode - supports clamping of inductive spikes up to 50 V without breakdown |
| Peak forward current | 1 A - handles short-duration surge currents typical in stepper motor winding commutation |
| Forward voltage drop | 0.5 V typical at 100 mA - reduces power loss and self-heating during standby or low-current clamping |
| Reverse recovery time | 15 ns - minimizes switching loss and EMI generation during rapid diode turn-off |
| Junction-to-ambient θja | 125–160°C/W (DIP-8) - defines thermal derating on standard FR4 PCBs without heatsinking |
| Operating temperature | −55°C to 125°C - enables deployment in aerospace, military, and industrial control environments |
| Junction capacitance | 70 pF at 5 V - limits high-frequency noise coupling in sensitive analog or timing circuits |
Pinout & Package
The UC1610J is housed in an 8-pin hermetic ceramic dual-in-line package (CERDIP), with 0.3-inch body width and 0.1-inch lead pitch. The package provides enhanced moisture resistance and long-term reliability under thermal cycling and high-reliability mission profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode Bridge A | Common anode input for first 4-diode bridge; connects to one side of inductive load |
| Pin 2 | Cathode Bridge A | Common cathode output for first bridge; routes clamped energy to supply rail |
| Pin 3 | Anode Bridge B | Common anode input for second 4-diode bridge; used for complementary winding clamping |
| Pin 4 | Cathode Bridge B | Common cathode output for second bridge; enables bipolar flyback path symmetry |
| Pins 5–8 | Internal interconnect / substrate tie | Internally bonded to die substrate; electrically tied to cathode terminals for thermal conduction and mechanical stability |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic eight-diode array | Single silicon die integrates two matched 4-diode bridges - eliminates inter-device parameter mismatch and layout skew |
| Low forward voltage | 0.5 V typical at 100 mA - directly lowers conduction loss by >40% vs. standard silicon rectifiers |
| Fast recovery time | 15 ns reverse recovery - suppresses voltage overshoot during stepper motor phase reversal |
| Hermetic CERDIP packaging | −55°C to 125°C operation with proven long-term seal integrity - suitable for sealed enclosures and vacuum environments |
| Dual bridge topology | Independent anode/cathode pairs per bridge - enables simultaneous clamping of opposing motor windings without cross-conduction |
Applications
| Stepper Motor Drive Protection | Flyback Clamping in DC-DC Converters |
|---|---|
Use Scenario: Bipolar stepper motor driver ICs switching H-bridge outputs to energize two-phase windings with rapid polarity reversal. IC Role / Device Role / Timing Role: UC1610J serves as bidirectional flyback clamp, absorbing inductive kickback from both winding polarities during each commutation edge. Use Value: Prevents voltage overshoot beyond 50 V, protects driver MOSFETs, and maintains torque consistency across wide temperature ranges (−55°C to 125°C). | Use Scenario: Discontinuous-mode flyback converter using a discrete MOSFET switch and transformer with high leakage inductance. IC Role / Device Role / Timing Role: UC1610J clamps transformer reset voltage spikes during MOSFET off-time, limiting drain stress and improving efficiency. Use Value: 15 ns recovery and 0.5 V forward drop reduce switching loss and EMI, enabling higher frequency operation without snubber networks. |
| Industrial Solenoid Control | Aerospace Actuator Interface |
Use Scenario: PLC output module driving high-current solenoids with frequent on/off cycling in factory automation systems. IC Role / Device Role / Timing Role: UC1610J provides unidirectional clamping (using one bridge) to suppress inductive transients when solenoid current is interrupted. Use Value: 1 A peak current rating and hermetic ceramic package ensure reliable operation over 10+ years in vibration-prone, temperature-cycling environments. | Use Scenario: Flight control surface actuator with dual-redundant stepper motors operating in pressurized avionics bays. IC Role / Device Role / Timing Role: UC1610J implements fault-tolerant clamping on both motor phases, with thermal stability verified from −55°C (cold soak) to 125°C (engine bay ambient). Use Value: Hermetic seal and MIL-grade thermal performance eliminate moisture ingress risk and prevent parametric drift under altitude/temperature stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UC3610J | Same pinout and dual-bridge topology, but rated for 0°C to 70°C only and specified for 3 A peak forward current | Targeted at commercial-grade stepper drivers and consumer power supplies where extended temperature range is not required | Select UC3610J when higher peak current (3 A) is needed and ambient temperature stays above 0°C |
| MBR20100CT | Discrete dual common-cathode Schottky pair in TO-220 package; 100 V PIV, 10 A avg, no monolithic matching or thermal coupling | Suitable for high-power AC-DC PFC stages or high-current DC-DC outputs, not for precision bipolar clamping | Choose MBR20100CT only for non-matched, high-current applications where layout space and thermal mass allow TO-220 mounting |
Compared with UC3610J and MBR20100CT, the UC1610J uniquely combines −55°C to 125°C operation, monolithic diode matching, and DIP-8 hermetic packaging-making it irreplaceable in high-reliability bipolar motor control where thermal stability and parameter consistency are critical.
Availability
UC1610J is available at Aetrix Electronics and suitable for stepper motor drives, industrial solenoid controllers, aerospace actuator interfaces, and high-reliability flyback converters requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for UC1610J includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and high-reliability components for industrial, automotive, and aerospace markets.
The UC1610J belongs to TI's legacy high-reliability Schottky bridge family, designed specifically for inductive load clamping in mission-critical motion control systems where thermal robustness and parameter stability outweigh cost sensitivity.
FAQ
What is the maximum operating temperature range for the UC1610J?
The UC1610J is rated for operation from −55°C to 125°C. This extended temperature range is enabled by its hermetic ceramic DIP-8 package and monolithic Schottky die construction. Unlike plastic-packaged variants such as UC3610J, the UC1610J maintains full electrical specifications-including 1 A peak forward current and 50 V peak inverse voltage-across this entire range. Engineers deploying UC1610J in aerospace or downhole industrial systems rely on this specification for guaranteed functionality under extreme thermal cycling.
Does the UC1610J support bidirectional clamping in stepper motor applications?
Yes, the UC1610J supports true bidirectional clamping via its dual independent bridge configuration: Pin 1/Pin 2 form one full-bridge anode/cathode pair, and Pin 3/Pin 4 form the second. In bipolar stepper motor drivers, each bridge clamps one winding's flyback energy during polarity reversal-preventing cross-conduction while maintaining voltage symmetry. This architecture is explicitly validated in TI's SLUS339B datasheet for stepper motor use, distinguishing UC1610J from single-bridge or discrete diode solutions.
What is the reverse recovery time of the UC1610J, and why does it matter?
The UC1610J has a reverse recovery time of 15 ns, measured at 0.5 A forward to 0.5 A reverse transition. This ultrafast recovery minimizes voltage overshoot and switching loss during rapid turn-off events-critical in stepper motor phase commutation and flyback converter reset cycles. Because the UC1610J uses Schottky technology (not PN-junction), this value reflects majority-carrier conduction with negligible minority-carrier storage, making it inherently faster and more predictable than silicon rectifiers. Designers select UC1610J specifically to avoid snubber networks and reduce EMI in high-frequency inductive switching.
Can the UC1610J be used as a direct replacement for UC3610J in existing designs?
No-the UC1610J is not a direct replacement for UC3610J due to fundamental thermal and current rating differences. While both share identical pinout and dual-bridge topology, the UC1610J is rated for −55°C to 125°C with 1 A peak current, whereas UC3610J operates from 0°C to 70°C with 3 A peak current. Substituting UC1610J into a design relying on 3 A clamping capability risks thermal overload; conversely, using UC3610J in a −40°C environment violates its spec. Always verify ambient temperature profile and peak current demand before interchange.
What package type does the UC1610J use, and how does it affect thermal performance?
The UC1610J uses an 8-pin hermetic ceramic dual-in-line package (CERDIP), with junction-to-case thermal resistance (θjc) of 20°C/W. This package provides superior moisture barrier integrity and coefficient-of-thermal-expansion (CTE) matching to alumina substrates versus plastic DIP variants. Its θjc enables efficient heat transfer to a metal chassis or heatsink when pins 5–8 are soldered to a thermal pad-unlike plastic packages where heat escapes primarily through leads. TI's datasheet confirms this CERDIP construction is mandatory for the −55°C to 125°C rating, directly linking package choice to operational reliability.
UC1610J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Diode Type:
- -
- Technology:
- -
- Voltage - Peak Reverse (Max):
- -
- Current - Average Rectified (Io):
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Current - Reverse Leakage @ Vr:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
UC1610J FAQ
1.How can I place an order for UC1610J through Aetrix?
Please submit a Request for Quotation (RFQ) for UC1610J on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for UC1610J reliable?
The price and inventory of UC1610J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UC1610J is usually 5 days.
3.What payment methods are accepted for UC1610J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UC1610J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UC1610J?
UC1610J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UC1610J order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for UC1610J?
For technical support, including UC1610J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UC1610J requirements.
6.How does Aetrix verify that UC1610J is sourced from the original manufacturer or authorized distributors?
All UC1610J products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that UC1610J meets industry standards.
7.What is the process for return or replacement of UC1610J?
All UC1610J units undergo pre-shipment inspection (PSI). If there is an issue with UC1610J, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The UC1610J part is unused and in its original packaging.
Return procedure for UC1610J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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