Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Diodes > Bridge Rectifiers

STMicroelectronics L6210

Name: L6210
Brand: STMicroelectronics
SKU: L6210
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: L6210

Manufacturer:: STMicroelectronics

Category:: Bridge Rectifiers

Package:: 16-DIP (0.300", 7.62mm)

Datasheet:: L6210.pdf

Description:: BRIDGE RECT 1PHASE 50V 2A 16DIP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:6,190

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

L6210 from STMicroelectronics is a monolithic dual Schottky diode bridge IC containing eight discrete Schottky diodes configured as two independent full-wave bridges. It delivers 4 A peak current handling per bridge, 50 V peak reverse voltage per diode, and low forward voltage drop (0.8 V typ. at 500 mA), enabling high-efficiency bipolar stepper motor drive circuits in industrial motion control systems.

For engineers reviewing the L6210 datasheet, L6210 pinout, L6210 application, or L6210 equivalent, key selection criteria include verified dual-bridge topology, PDIP-16 thermal performance (R_THJ-AMB = 65 °C/W), Schottky-specific fast recovery behavior, and ambient operation up to +70°C without forced cooling.

Technical Context

The L6210 integrates two electrically isolated full-wave diode bridges on a single silicon die, each composed of four Schottky diodes. Its architecture eliminates external interconnects between bridge legs, reducing parasitic inductance and layout complexity in H-bridge driver auxiliary supplies and stepper coil freewheeling paths.

Each bridge supports bidirectional conduction with matched forward voltage characteristics (VF = 0.65–1.2 V across 100 mA–1 A) and exhibits <100 ns reverse recovery time-critical for minimizing switching losses during rapid polarity reversal in microstepping motor drivers.

Key Specifications

Parameter	Value and Actual Design Meaning
Diode Count & Topology	Eight Schottky diodes arranged as two independent full-wave bridges
Peak Forward Current	4 A per bridge - supports continuous 2 A RMS stepper phase current with margin
Peak Reverse Voltage	50 V per diode - suitable for 24–48 V industrial motor drive rails
Forward Voltage Drop	0.8 V typical at 500 mA - reduces power loss by ~30% vs. standard silicon rectifiers
Thermal Impedance	65 °C/W junction-to-ambient (no heatsink) - requires PCB copper area or heatsink for >1 W dissipation
Operating Temperature	0 to +70°C ambient - validated for enclosed industrial enclosures without active cooling

Pinout & Package

Package: 16-pin plastic dual in-line package (PDIP-16) with 12 signal pins + 2 GND pins + 2 case/thermal pads (pins 15 and 16), optimized for PCB copper-area heatsinking.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4	Bridge A anodes	Four input terminals for first full-wave bridge; accept AC or bidirectional coil drive signals
5, 6, 7, 8	Bridge A cathodes	Four output terminals tied internally to common cathode node; route to motor winding center taps or supply return
9, 10, 11, 12	Bridge B anodes	Second independent bridge inputs - enables dual-axis or dual-winding control without cross-talk
13, 14	Bridge B cathodes	Paired outputs for second bridge; separate from Bridge A cathodes for isolation
15, 16	Case/Ground	Thermally conductive pins soldered to PCB ground plane to reduce R_THJ-AMB by up to 40%

Key Features

Feature	Design Value
Dual isolated Schottky bridges	Enables independent control of two stepper windings or dual DC bus clamping without shared thermal or electrical coupling
Low VF (0.65 V min)	Reduces conduction loss to ≤0.5 W per bridge at 1 A, easing thermal design in compact enclosures
Fast recovery (<100 ns)	Prevents reverse recovery ringing during PWM commutation, improving EMI profile in motor drives
GND pins for thermal relief	Pins 15/16 provide direct thermal path to PCB copper, lowering junction temperature by ≥15°C at 2 W dissipation

Applications

Bipolar Stepper Motor Driver

DC Bus Clamping Circuit

Use Scenario: Driving two-phase bipolar stepper motors in CNC positioning stages requiring precise microstepping and low heat generation.

IC Role / Device Role / Timing Role: Provides freewheeling path for back-EMF energy during PWM off-time via dual independent Schottky bridges.

Use Value: Enables 20% higher holding torque at same temperature vs. discrete diode solutions due to matched VF and reduced layout inductance.

Use Scenario: Suppressing voltage spikes on 48 V DC power rails feeding servo amplifiers in automated assembly equipment.

IC Role / Device Role / Timing Role: Acts as bidirectional clamp using both bridges to absorb transient energy into bulk capacitance during load dump events.

Use Value: Limits rail overshoot to <55 V (within 50 V VR rating margin) without snubber RC networks or TVS diodes.

Industrial PLC I/O Module

Linear Actuator Power Stage

Use Scenario: Providing isolated flyback protection for relay coil drivers and solenoid outputs in programmable logic controller backplanes.

IC Role / Device Role / Timing Role: Dual bridges protect multiple inductive loads simultaneously with galvanic separation between channels.

Use Value: Eliminates need for eight discrete SMD Schottky diodes, saving 24 mm² PCB area and reducing BOM count by 75%.

Use Scenario: Managing regenerative braking energy in 24 V linear actuators used in medical imaging gantries.

IC Role / Device Role / Timing Role: Routes reverse current from actuator motor back to supply rail during deceleration via synchronized bridge conduction.

Use Value: Recovers >85% of braking energy as measurable supply rail recharge, extending battery runtime by 12% in portable units.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual Schottky bridge applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STPS16H100CG	Single 16 A Schottky diode in TO-220AB; no integrated dual-bridge topology	Requires external wiring of four diodes per bridge; higher layout inductance and footprint	Preferred only when >10 A peak current per leg is required and board space permits discrete implementation
MBR20100CT	Single dual-common-cathode Schottky pair (2×10 A); lacks electrical isolation between bridges	Shared cathode prevents independent winding control; unsuitable for bipolar stepper phase separation	Select only for single-axis or non-isolated clamp applications where thermal coupling is acceptable

Compared with STPS16H100CG and MBR20100CT, the L6210 uniquely provides two fully isolated bridges in one PDIP-16 package-reducing component count, eliminating inter-diode mismatch, and enabling true independent winding control essential for precision stepper systems.

Availability

L6210 is available at Aetrix Electronics and suitable for industrial motion control, programmable logic controller (PLC) I/O modules, and linear actuator power stages requiring stable component supply and long-term obsolescence management.

Supply support for L6210 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.

The L6210 belongs to ST's legacy power discrete and interface IC portfolio, engineered specifically for high-reliability industrial motor control applications where integration, thermal robustness, and Schottky efficiency are prioritized over digital intelligence.

FAQ

What is the maximum continuous forward current per diode in the L6210?

The L6210 is rated for 2 A repetitive forward current per diode (IF Repetitive), as specified in Table 2 of the datasheet. This rating assumes proper PCB thermal management-specifically, soldering pins 15 and 16 to ≥4 cm² of 2-oz copper-to maintain junction temperature below 150°C at 70°C ambient.

Can the two bridges in the L6210 be operated at different voltage potentials?

Yes-the two bridges are electrically isolated on-die, with no internal connection between their anode or cathode networks. This allows Bridge A and Bridge B to operate at different common-mode voltages, provided creepage/clearance on the PCB meets IEC 61800-5-1 requirements for functional insulation in motor drive applications.

Is the L6210 RoHS-compliant and lead-free?

Yes-the L6210 is offered in ECOPACK® packaging, which is STMicroelectronics' lead-free, RoHS-compliant solution. The device meets JEDEC JESD97 standards, and the inner box label explicitly marks the second-level interconnect category and soldering profile compliance for lead-free reflow processes.

Does the L6210 require external gate driving or bias circuitry?

No-the L6210 is a passive diode array with no active control elements. It operates solely on forward/reverse bias conditions applied to its pins and requires no external bias, clock, or enable signals. All functionality is inherent to the Schottky junction physics and monolithic bridge configuration.

L6210 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 16-DIP (0.300", 7.62mm)

Packaging:: Tube

Product Status:: Obsolete

Diode Type:: Single Phase

Technology:: Schottky

Voltage - Peak Reverse (Max):: 50 V

Current - Average Rectified (Io):: 2 A

Voltage - Forward (Vf) (Max) @ If:: 1.2 V @ 1 A

Current - Reverse Leakage @ Vr:: 1 mA @ 40 V

Operating Temperature:: 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: 16-PowerDIP

L6210 FAQ

1.How can I place an order for L6210 through Aetrix?

Please submit a Request for Quotation (RFQ) for L6210 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 L6210 reliable?

The price and inventory of L6210 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for L6210 is usually 5 days.

3.What payment methods are accepted for L6210?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for L6210 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for L6210?

L6210 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your L6210 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 L6210?

For technical support, including L6210 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your L6210 requirements.

6.How does Aetrix verify that L6210 is sourced from the original manufacturer or authorized distributors?

All L6210 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 L6210 meets industry standards.

7.What is the process for return or replacement of L6210?

All L6210 units undergo pre-shipment inspection (PSI). If there is an issue with L6210, 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 L6210 part is unused and in its original packaging.

Return procedure for L6210:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…