● ISO 9001:2015 · ANSI/ESD S20.20-2021 · ERAI Member · GIDEP · Woman-Owned Small Business 760.724.2800 · 855.RH.HAS.IT · info@rhelectronics.com
Mathews Associates  · Electronic Components

MAI-139

Battery, Storage

Part NumberMAI-139
ManufacturerMathews Associates
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameBATTERY,STORAGE
Federal Supply Class6140 — Batteries, Rechargeable
Terminal LocationTOP
Usage DesignUSED FOR THE SCOPE SHIELD II PROGRAM
MaterialPLASTIC CASE
Case Design TypeSEALED
Voltage In Volts9.6
Overall Height2.775 INCHES NOMINAL
Ventilation Design TypeVENTING ACCOMPLISHED THRU DESIGN
Overall Width2.975 INCHES NOMINAL
Overall Depth1.515 INCHES NOMINAL
Vendor Part NumbersBT-70342, SS-1600350-1, PRC-139B
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RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant

Frequently asked

Is MAI-139 available?
We can source MAI-139 even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is MAI-139 by Mathews Associates obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MAI-139 has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like MAI-139?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for MAI-139?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.