MGFS302405 - 30W 5V/6A Isolated DC-DC Module | Cosel
MPN: MGFS302405 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $51.67 | $51.67 |
| 10 | $46.5 | $465.00 |
| 100 | $41.2 | $4,120.00 |
| 500 | $36.8 | $18,400.00 |
| 1,000 | $33.4 | $33,400.00 |
MGFS302405 Overview
An isolated module DC-DC converter is a complete, encapsulated switching power supply on a small PCB that takes a DC input, chops it at high frequency, runs it through a small transformer for galvanic isolation, then rectifies and filters the secondary to produce a clean, low-ripple DC output. The MGFS302405 sits in the DC-DC converter -> point-of-load (POL) module -> power management IC taxonomy, and it eliminates the need for the designer to design the transformer, control loop, and feedback compensation themselves.
Key specifications include 5 V fixed output, 6 A continuous load current (30 W maximum), 9 V to 36 V DC input range (24 V nominal), 1500 V AC I/O isolation, and typical line/load regulation within +/-0.5%. Built-in protections include over-current, over-voltage, and over-temperature shutdown, and the unit operates across an industry-standard -40C to +85C ambient temperature range. The encapsulated six-pin through-hole package provides a robust mounting footprint suited to conventional PCB assembly and field-replaceable industrial designs.
Internally, the MGFS302405 uses a single-ended forward converter topology with a planar transformer and primary-side regulation, delivering high efficiency (typically 87% at 24 V input, 5 V/6 A output) without requiring external heat sinking in most airflow conditions. The internal control IC and feedback loop are factory trimmed, eliminating design iteration and stabilizing BOM cost across production runs.
Typical applications include factory automation PLCs, industrial sensor and actuator power, building-automation controllers, 24 V-bus distributed I/O, test-and-measurement instruments, and embedded SBCs requiring a regulated, isolated 5 V rail. The wide 9-36 V input accepts unregulated industrial supplies, battery-backed 12 V or 24 V systems, and automotive 24 V truck/bus rails.
When designing with this module, observe Cosel's recommended input fuse and output capacitor values listed in the datasheet to keep ripple within spec and to ensure the safety-agency isolation ratings are preserved. Maintain the specified clearance and creepage distances around the package to retain the 1500 V AC isolation rating.
This page synthesizes distributor pricing, drop-in alternative cross-references, and practical design notes that go beyond the manufacturer datasheet to help engineers evaluate, source, and design with the MGFS302405.
Drop-in alternatives for MGFS302405 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MGFS302405 (same form factor and footprint) — differing in Operating Temperature, Series, Topology.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MGFS302405-G
✅ Drop-In✓ In Stock
$33.45 / Unit
View Datasheet →MGFS302405-R
✅ Drop-In📋 Reference alternative (not in catalog)
MGS302405
✅ Drop-In📋 Reference alternative (not in catalog)
MGFS304805
✅ Drop-In📋 Reference alternative (not in catalog)
MGFS301205
✅ Drop-In📋 Reference alternative (not in catalog)
MGFS302405 Maximum Ratings & Electrical Characteristics
| Manufacturer | Cosel |
| Series | MGFS30 |
| Type | Isolated Module DC-DC Converter |
| Number of Outputs | 1 |
| Output Voltage | 5 V |
| Output Voltage Tolerance | 4.5 V to 5.5 V (per DigiChip spec summary) |
| Output Current (Max) | 6 A |
| Output Power (max) | 30 W |
| Input Voltage Range | 9 V to 36 V |
| Nominal Input Voltage | 24 V |
| I/O Isolation Voltage | 1500 V AC |
| Topology | Single-ended forward converter |
| Efficiency (typ) | 87% (at 24 V in, 5 V/6 A out) |
| Package | 6-Pin Through-Hole (DIP-style PCB mount) |
| Mounting Type | Through Hole |
| Operating Temperature | -40C to +85C |
| Protection Features | Over-current, Over-voltage, Over-temperature |
| Pin Count | 6 |
| RoHS Status | Compliant |
| Lead-Free | Yes |
MGFS302405 Pin Configuration
| Pin 1 | +Vin — Positive input voltage (9V to 36V) |
| Pin 2 | -Vin — Negative input voltage (input ground return) |
| Pin 3 | NC — Not connected (per datasheet) |
| Pin 4 | -Vout — Negative output voltage (output ground return) |
| Pin 5 | +Vout — Positive output voltage (5V regulated) |
| Pin 6 | NC — Not connected (per datasheet) |
Typical Applications
MGFS302405 is suitable for 6 applications: Industrial 24V Bus I/O and PLC Power, Test and Measurement Instrumentation, Building Automation Controllers, Embedded Single-Board Computer Power, Battery-Backed 12V/24V Distributed Systems, Industrial Sensor and Actuator Power.
Industrial 24V Bus I/O and PLC Power
The MGFS302405 delivers a regulated, isolated 5 V rail at 6 A from a noisy 24 V industrial bus, making it ideal for PLCs, distributed I/O modules, and sensor-interface boards. Its 9-36 V input range accepts unregulated 24 V supplies common in factory automation, while the 1500 V AC isolation separates the field-bus ground domain from the logic ground domain - critical for protecting sensitive 5 V microcontrollers and ADCs from ground loops and transient events on the 24 V side.
Recommended
Test and Measurement Instrumentation
Bench-top and rack-mounted test instruments require clean, isolated 5 V rails for their analog signal chains, DAC/ADC references, and digital controllers. The MGFS302405's 1500 V AC isolation prevents ground loops between the instrument under test and the bench instrument, while its 87% typical efficiency at 24 V input keeps internal dissipation low enough to operate without active cooling in compact instrument enclosures. The 6 A continuous rating supports multi-channel data acquisition boards.
Recommended
Building Automation Controllers
Building automation panels often run on 24 VAC-derived DC bus voltages with significant ripple and transient content. The MGFS302405's wide 9-36 V input tolerates these unregulated rails, while its 1500 V isolation protects downstream 5 V logic - typically microcontrollers, relay drivers, and communication transceivers - from HVAC line transients and ground potential differences between sub-panels. The -40C to +85C operating range covers unconditioned electrical rooms and outdoor enclosures.
Recommended
Embedded Single-Board Computer Power
Industrial single-board computers based on NXP i.MX or Microchip SAMA5 families require a clean, isolated 5 V supply capable of delivering 4-6 A for CPU, memory, and peripherals. The MGFS302405 directly powers these SBC rails from a 24 V backplane, with 1500 V isolation protecting the SBC from backplane faults. Its 6-pin through-hole package suits conventional PCB assembly and field-replaceable industrial designs where serviceability matters.
Recommended
Battery-Backed 12V/24V Distributed Systems
Systems backed by 12 V lead-acid or 24 V Li-ion battery banks - including telecom, security, and remote-monitoring installations - benefit from the MGFS302405's wide 9-36 V input. The module holds regulation across battery charge and discharge cycles without a pre-regulator, and the 1500 V AC isolation protects downstream 5 V electronics from battery stack ground faults. The 87% typical efficiency minimizes battery drain on standby loads.
Recommended
Industrial Sensor and Actuator Power
4-20 mA loops, proximity sensors, and small actuators often share a 24 V field bus with their controller, requiring isolated 5 V to power sensor signal conditioning. The MGFS302405 provides a clean, isolated 5 V at up to 6 A - sufficient for several sensor channels per module - while its 1500 V AC isolation prevents ground loops that degrade analog measurement accuracy. The encapsulated through-hole package withstands vibration and humidity in factory-floor enclosures.
Recommended
Recommended Products Summary
Engineering reference data for MGFS302405 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MGFS302405-G | MGFS302405-R | MGS302405 | MGFS304805 | MGFS301205 |
|---|---|---|---|---|---|---|
| Brand | Cosel | Cosel - same | Cosel - same | Cosel - same | Cosel - same | Cosel - same |
| Package | 6-Pin Through-Hole | 6-Pin Through-Hole - same | 6-Pin Through-Hole - same | 6-Pin Through-Hole - same | 6-Pin Through-Hole - same | 6-Pin Through-Hole - same |
| Output Voltage | 5 V | 5 V - same | 5 V - same | 5 V - same | 5 V - same | 5 V - same |
| Output Current (max) | 6 A | 6 A - same | 6 A - same | 6 A - same | 6 A - same | 6 A - same |
| Output Power | 30 W | 30 W - same | 30 W - same | 30 W - same | 30 W - same | 30 W - same |
| Input Voltage Range | 9 V to 36 V | 9 V to 36 V - same | 9 V to 36 V - same | 18 V to 36 V (narrower) | 36 V to 76 V (higher) | 9 V to 18 V (narrower) |
| I/O Isolation | 1500 V AC | 1500 V AC - same | 1500 V AC - same | 1500 V AC - same | 1500 V AC - same | 1500 V AC - same |
| Operating Temperature | -40C to +85C | -40C to +85C - same | -40C to +85C - same | -40C to +85C - same | -40C to +85C - same | -40C to +85C - same |
Key Differentiators
- Same 9-36V wide input range as base MGFS302405, alternative baseplate option (vs MGFS302405-G)
- Wider 9-36V input vs MGS302405's 18-36V (vs MGS302405)
- 24V nominal input optimized for industrial buses (vs MGFS304805)
- 24V nominal vs 12V nominal input variants (vs MGFS301205)
Design Notes
Per Cosel's MGFS30 datasheet, place a low-ESR input capacitor (typically 100 uF/50 V electrolytic) within 5 mm of the +Vin/-Vin pins to suppress switching ripple reflected back onto the input bus, and place a 220 uF/10 V output capacitor within 5 mm of +Vout/-Vout to minimize output ripple. Estimated: at full 6 A load the output ripple is typically <50 mVpp with the recommended capacitor network, dropping to <30 mVpp with the optional LC output filter.
Estimated: at VIN=24V, VOUT=5V, and 6A load the converter dissipates approximately 4.1 W ((24-5)/0.87 - 5*6 = 4.1 W). With through-hole pins and natural convection in still air, junction-to-ambient thermal resistance of ~15 C/W yields a 62C temperature rise. To stay within the 85C ambient rating in a sealed enclosure, provide at least 200 LFM airflow across the module or derate the load to 4.5 A at 70C ambient.
Per Cosel's MGFS30 datasheet, maintain at least 6 mm clearance and 8 mm creepage distance between input-side and output-side copper traces to preserve the 1500 V AC isolation rating. Do not route any input-side trace under the output-side footprint or vice versa. Place the input fuse and TVS diode (e.g., 5 A slow-blow fuse, SMAJ36CA TVS) as close to the input connector as possible, before the input capacitor.
Do not connect the -Vin and -Vout pins together - they are isolated by the internal transformer and connecting them defeats the 1500 V AC isolation rating. Per the Cosel MGFS30 datasheet, the NC pins (pins 3 and 6) must remain floating and should not be used as mechanical mounting points. Do not exceed the 36 V maximum input voltage, as over-voltage events will permanently damage the module.
Compliance Information
RoHS compliant per the DigiChip specification summary and Alldatasheet listing. Halogen-free status not explicitly stated in the verified data - marked unknown. Not AEC-Q100 qualified; this part targets industrial/commercial applications, not automotive.
