Diodes Incorporated DF1510M

Overview

DF1510M from Diodes Incorporated is a 1.5A glass passivated bridge rectifier with 1000V peak repetitive reverse voltage (VRRM), 1.1V forward voltage drop at 1.5A, and 50A non-repetitive surge current rating; designed for AC/DC conversion in offline power supplies, LED drivers, and industrial control power stages.

For engineers reviewing the DF1510M datasheet, DF1510M pinout, DF1510M application, or DF1510M equivalent, key selection criteria include VRRM derating for capacitive loads, thermal resistance (40°C/W) on standard PCB land patterns, IFSM capability under line surges, and UL recognition (E94661) for safety-compliant designs.

Technical Context

This single-phase, full-wave bridge rectifier integrates four silicon diodes in a compact DF-M molded plastic package with tin-plated terminals. It operates across –65°C to +150°C and is rated for 1.5A average output current at 40°C ambient, derated linearly above that temperature.

Electrical behavior follows standard silicon PN junction characteristics: typical junction capacitance is 25pF at 4V reverse bias and 1MHz, reverse leakage is ≤10µA at 25°C and ≤500µA at 125°C, and thermal performance assumes 13×13mm² copper pads per lead for RθJA = 40°C/W.

Key Specifications

Pinout & Package

DF1510M uses the DF-M surface-mount package: molded plastic case (UL 94V-0), 7.4–7.9mm length (A), 6.2–6.5mm width (B), 8.13–8.51mm height (H), with 4 tin-plated terminals. Polarity marked on case.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU10K and MB10F, DF1510M offers optimal balance of SMT compatibility, UL recognition, and thermal performance on standard PCB layouts-making it preferred for certified, space-constrained AC/DC front-ends.

Availability

DF1510M is available at Aetrix Electronics and suitable for offline power supplies, LED driver modules, and industrial control boards requiring stable component supply and long-lifecycle support.

Supply support for DF1510M 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the US.

The DF-series bridge rectifiers target cost-sensitive, high-volume AC/DC conversion applications where reliability, safety certification, and thermal efficiency are essential-especially in lighting, appliance, and industrial power supplies.

FAQ

Is DF1510M suitable for capacitive-input filter applications?

No-datasheet explicitly states "for capacitive load, derate current by 20%." At 1.5A rated IO, usable current drops to 1.2A. Peak charging currents also increase stress on IFSM rating; ensure surge margin remains >2× expected inrush.

What is the minimum recommended PCB copper area for thermal performance?

Diodes specifies RθJA = 40°C/W based on 13×13mm² (0.03mm thick) copper land areas per terminal. Reducing pad size increases thermal resistance; for every 25% reduction in copper area, expect ~15% higher junction temperature at full load.

Does DF1510M have a date code restriction for RoHS compliance?

Yes-RoHS compliance (lead-free finish) applies only to date codes 0532 and later, per Note 3. Units prior to 200532 contain leaded terminations and do not meet EU Directive 2011/65/EU requirements.

Why is DF1510M marked "NOT RECOMMENDED FOR NEW DESIGN"?

This designation reflects Diodes' internal product lifecycle status-not functional obsolescence. It indicates newer alternatives (e.g., higher-efficiency GBU or MBF series) are preferred for new projects, though DF1510M remains fully supported and available for existing designs and replacements.