Skip to main content
Microchip Technology SMAJ48E3/TR13 — Circuit Protection

SMAJ48E3/TR13 Zener TVS Diode – 48V, 500W, DO-214AC

MPNSMAJ48E3/TR13
Active

Microchip Technology SMAJ48E3/TR13, Zener TVS Diode, 48V reverse standoff, 500W peak pulse power, unidirectional, DO-214AC (SMA) package, Tape & Reel.

$0.6200Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ48E3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown53.3V
Voltage - clamping (Max) @ ipp85.5V
Voltage - reverse standoff48V
Current - peak pulse (10/1000μs)5.8A
Power - peak pulse500W
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AC, SMA
Unidirectional channels1

Product details

48V rail clamp — 500W peak pulse in DO-214AC

Its 48V reverse standoff voltage means the device does not conduct at normal operating levels, while the 53.3V minimum breakdown voltage defines the threshold where clamping begins. The 85.5V clamping voltage at 5.8A peak pulse current limits the voltage seen by downstream circuitry during a surge — a key parameter for selecting the TVS against the protected IC's absolute maximum rating.

Temperature range and surge capability

Operating junction temperature spans -65°C to 150°C, covering automotive underhood, outdoor telecom cabinets, and industrial enclosures where ambient temperatures can exceed 85°C. The wide range also allows derating for high-power pulses without immediate thermal shutdown.

Frequently asked questions

Is SMAJ48E3/TR13 RoHS compliant?

The suffix in the order code indicates a lead-free / RoHS-compliant finish. The part is supplied on Tape & Reel and is suitable for lead-free reflow profiles.