Product Overview
Motorola MDA970G1 4-Lead Full-Wave Rectification Component
Condition
New old stock surplus. Leads are straight and clean. Markings legible: Motorola emblem, MDA970G1, with +, AC, and - terminal designations. Sold each.
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Product Overview
Motorola MDA970G1 provides full-wave rectification in a compact 4-pin single-in-line package. Designed for low-voltage power supplies, test instruments, and board-level AC to DC power rails.
Key Features
- 50V peak repetitive reverse voltage (VRRM)
- 4.0A average forward rectified current
- 150A peak forward surge current capability
- 4-pin single-in-line (SIP) through-hole footprint
- Beveled edge denotes positive terminal polarity
Applications
- Replacing degraded bridge rectifiers in legacy bench instrumentation power supplies
- Building low-noise DC power rails for custom audio preamps and synthesizer modules
- Restoring classic solid-state linear power supply boards
Frequently Asked Questions
What is the pin arrangement on this package?
The leads sit in a single row. The beveled corner of the housing indicates Pin 1 as the positive (+) DC output, followed by two AC input pins in the center, and Pin 4 as the negative (-) DC output.
What is the surge current capacity?
The MDA970G1 is rated for up to 150 A peak forward surge current for an 8.3 ms half sine wave.
What part numbers directly interchange with this component?
This part directly interchanges with the MDA970-1 and MDA970 series, sharing the identical 50V 4A rating and 4-pin in-line Case 117 footprint.
Solid-state rectifiers from this era did the quiet, unglamorous work of turning wall power into clean DC without taking up half the chassis. Drop it into your board and keep the power rail steady.
