SMBJ48A

Transient Voltage Suppressor Diode

The SMBJ48A is a transient voltage suppressor diode from Eaton Electronics. View the full SMBJ48A datasheet below including key specifications, electrical characteristics.

Manufacturer

Eaton Electronics

Key Specifications

Parameter	Value
Package Width	4.06 mm to 4.57 mm
Package Height	1.96 mm to 2.21 mm
Package Length	5.21 mm to 5.59 mm
Breakdown Voltage	53.3 V to 58.9 V
Storage Temperature Range	-55 °C to +175 °C
Operating Temperature Range	-55 °C to +150 °C
Working Peak Reverse Voltage	48 V
Maximum Reverse Surge Current	7.7 A
Maximum Reverse Voltage @I RSM	77.4 V
Response Time (Unidirectional)	< 1.0 ns
Steady State Power Dissipation	5.0 W @ 75 °C
Maximum Reverse Leakage Current	5.0 µA
Peak Pulse Power Dissipation (1ms)	600 W
Peak Forward Surge Current (Unidirectional)	100 A
Maximum Instantaneous Forward Voltage (Unidirectional)	3.5 V @ 50 A

Overview

Part: SMBJ Transient Voltage Suppressor Diode Series — Bourns

Type: Transient Voltage Suppressor Diode

Description: 600 W peak pulse power, 5–495 V working peak reverse voltage TVS diode series in a compact SMB (DO-214AA) surface mount package, offering surge and ESD protection.

Operating Conditions:

Working Peak Reverse Voltage: 5 V to 495 V
Operating temperature: -55 to +150 °C
Response time: less than 1.0 ns (unidirectional), less than 5.0 ns (bidirectional)

Absolute Maximum Ratings:

Max Working Peak Reverse Voltage: 495 V
Max Peak Forward Surge Current: 100 Amps (8.3 ms Single Half Sine Wave)
Max junction temperature: +150 °C
Max storage temperature: +175 °C

Key Specs:

Minimum Peak Pulse Power Dissipation (T_P = 1 ms): 600 Watts
Peak Forward Surge Current (8.3 ms Single Half Sine Wave): 100 Amps
Steady State Power Dissipation (@TL= 75 °C): 5.0 Watts
Working Peak Reverse Voltage (V_RWM): 5 V to 495 V
Breakdown Voltage (V_BR) Min: 6.40 V to 522 V (@I_T = 1.0 mA or 10 mA)
Maximum Reverse Leakage (I_R @V_RWM): 1.0 μA to 800 μA
Maximum Instantaneous Forward Voltage (@I_PP = 50 A, Unidirectional): 3.5 V (for SMBJ5.0A-SMBJ90A), 5.0 V (for SMBJ100A-SMBJ495A)

Features:

RoHS compliant
Surface Mount SMB package
Standoff Voltage: 5 to 495 volts
Power Dissipation: 600 watts

Applications:

IEC 61000-4-2 ESD (Min. Level 4)
IEC 61000-4-4 EFT
IEC 61000-4-5 Surge

Package:

SMB (DO-214AA)

Features

■ RoHS compliant*
■ Surface Mount SMB package
■ Standoff Voltage: 5 to 495 volts
■ Power Dissipation: 600 watts

Applications

■ IEC 61000-4-2 ESD (Min. Level 4)
■ IEC 61000-4-4 EFT
■ IEC 61000-4-5 Surge

Electrical Characteristics

Parameter	Symbol	Value	Unit
Minimum Peak Pulse Power Dissipation (T P = 1 ms) (Note 1,2)	P PK	600	Watts
Peak Forward Surge Current 8.3 ms Single Half Sine Wave Superimposed on Rated Load (JEDEC Method) (Note 3)	I FSM	100	Amps
Steady State Power Dissipation @TL= 75 °C	P M(AV)	5.0	Watts
Maximum Instantaneous Forward Voltage @I PP = 50 A (For Unidirectional Units Only)	V F	(Note 5)	Volts
Operating Temperature Range	T J	-55 to +150	°C
Storage Temperature Range	T STG	-55 to +175	°C

Non-repetitive current pulse, per Pulse Waveform graph and derated above T A = 25 °C per Pulse Derating Curve.
Thermal Resistance Junction to Lead.
8.3 ms Single Half-Sine Wave duty cycle = 4 pulses maximum per minute (unidirectional units only).
Single Phase, Half Wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20 %.
V F = 3.5 V on SMBJ5.0A through SMBJ90A and V F = 5.0 V on SMBJ100A through SMBJ495A.

Related Variants

The following components are covered by the same datasheet.

Part Number	Manufacturer	Package
SMBJ48CA	Eaton Electronics

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