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SMF17CA

Bidirectional TVS Diode

The SMF17CA is a bidirectional tvs diode from Littelfuse. View the full SMF17CA datasheet below including key specifications, pinout, electrical characteristics, absolute maximum ratings.

Official SMF17CA datasheet (PDF) — the source this page was extracted from.

Manufacturer

Littelfuse

Category

Diodes

Package

SOD-123FL

SMF17CA Key Specifications

ParameterValue
PolarityBi-directional
Test Current (IT)1 mA
Device Marking CodeGR
Storage Temperature-55°C to +150°C
Peak Reflow Temperature260°C
Peak Pulse Current (IPP)7.2 A
Breakdown Voltage (VBR) Max20.9 V @ 1 mA
Breakdown Voltage (VBR) Min18.9 V @ 1 mA
Reverse Leakage (IR) @ VRWM1 uA
Peak Pulse Power (10/1000us)200 W
Maximum Clamping Voltage (VC)27.6 V @ 7.2 A
Operating Junction Temperature-55°C to +150°C
Reverse Stand-Off Voltage (VRWM)17.0 V
Steady State Power Dissipation (TA=50°C)1 W
Thermal Resistance Junction To Ambient (RθJA)220 °C/W

SMF17CA Overview

Part: SMF Series — Semiware Semiconductor Inc.

Type: Transient Voltage Suppressor (TVS) Diode

Description: A low profile, surface mount transient voltage suppressor diode series with 200 W peak pulse power capability (10/1000μs waveform) and very fast response time, available in uni-polar and bi-polar configurations.

Operating Conditions:

  • Operating Junction Temperature: -55 to +150 °C

Absolute Maximum Ratings:

  • Max Peak Pulse Power Dissipation (10/1000μs): 200 Watts
  • Max Steady State Power Dissipation (TA=50°C): 1 Watt
  • Max Junction/Storage Temperature: -55 to +150 °C

Key Specs:

  • Peak Pulse Power Dissipation (P PPM): 200 Watts (10/1000μs waveform)
  • Reverse Stand-off Voltage (V RWM): 3.3 V to 120 V (for SMF3.3A to SMF120A/CA)
  • Breakdown Voltage Min. (V BR): 5.2 V to 133 V (for SMF3.3A to SMF120A/CA, at I T)
  • Test Current (I T): 1 mA or 10 mA
  • Maximum Clamping Voltage (V C): 8.0 V to 193 V (for SMF3.3A to SMF120A/CA, at I PP)
  • Peak Pulse Current (I PP): 0.93 A to 25.0 A (for SMF3.3A to SMF120A/CA)
  • Reverse Leakage (I R): 1 μA to 800 μA (at V RWM)
  • Response time: Very fast

Features:

  • Low profile package
  • Ideal for automated placement
  • 200 Watt peak pulse power capability with a 10/1000μs waveform
  • For surface mounted applications to optimize board space
  • Excellent clamping capability
  • Very fast response time
  • Low incremental surge resistance

Applications:

  • Power supply protection
  • Automotive application
  • Industrial application
  • Power management

Package:

  • SOD-123FL

SMF17CA Features

  • Low profile package
  • Ideal for automated placement
  • 200 Watt peak pulse power capability with a 10/1000μs waveform
  • For surface mounted applicatons to optimize board space
  • Excellent clamping capability
  • Very fast response time
  • Low incremental surge resistance

SMF17CA Applications

  • Power supply protection

  • Automotive application

  • Industrial application

  • Power management

SMF17CA Pin Configuration

SMF17CA Pinout

Package: SOD-123FL (2-pin surface mount)

Pin NumberPin NameTypeDescription
1Cathode–Cathode (Bi-directional TVS diode)
2Anode+Anode (Bi-directional TVS diode)

Notes

  • SMF17CA is a bi-directional transient voltage suppressor (TVS) diode in SOD-123FL package.
  • Electrical characteristics for SMF17CA:
    • Reverse Stand-off Voltage (V_RWM): 17.0 V
    • Breakdown Voltage (V_BR): 18.9 V (min) to 20.9 V (max) @ 1 mA
    • Maximum Clamping Voltage (V_C): 27.6 V @ I_PP
    • Peak Pulse Current (I_PP): 7.2 A
    • Reverse Leakage (I_R): 1 µA @ V_RWM
  • Device Marking Code: GR (for bi-polar variant)
  • The component is bi-directional, providing protection in both forward and reverse directions.
  • Peak pulse power capability: 200 W (10/1000 µs waveform)

SMF17CA Electrical Characteristics

Part NumberPart NumberDevice Marking CodeDevice Marking CodeReverse Stand-off VoltageBreakdown Voltage Min.@I TBreakdown Voltage Max.@I TTest CurrentMaximum Clamping Voltage @I PPPeak Pulse CurrentReverse Leakage @V RWM
Uni-PolarBi-PolarUniBiV RWM (V)V BR (V)V BR (V)I T (mA)V C (V)I PP (A)I R (uA)
SMF3.3ASMF3.3CAHZGZ3.35.26.00108.025.0800
SMF5.0ASMF5.0CAAEFE5.06.47.00109.221.7800
SMF6.0ASMF6.0CAAGFG6.06.677.371010.319.4800
SMF6.5ASMF6.5CAAKFK6.57.227.981011.217.9500
SMF7.0ASMF7.0CAAMFM7.07.788.601012.016.7200
SMF7.5ASMF7.5CAAPFP7.58.339.21112.915.5100
SMF8.0ASMF8.0CAARFR8.08.899.83113.614.750
SMF8.5ASMF8.5CAATFT8.59.4410.4114.413.920
SMF9.0ASMF9.0CAAVFV9.010.011.1115.413.010
SMF10ASMF10CAAXFX10.011.112.3117.011.85
SMF11ASMF11CAAZFZ11.012.213.5118.211.01
SMF12ASMF12CABEGE12.013.314.7119.910.11
SMF13ASMF13CABGGG13.014.415.9121.59.31
SMF14ASMF14CABKGK14.015.617.2123.28.61
SMF15ASMF15CABMGM15.016.718.5124.48.21
SMF16ASMF16CABPGP16.017.819.7126.07.71
SMF17ASMF17CABRGR17.018.920.9127.67.21
SMF18ASMF18CABTGT18.020.022.1129.26.81
SMF20ASMF20CABVGV20.022.224.5132.46.21
SMF22ASMF22CABXGX22.024.426.9135.55.61
SMF24ASMF24CABZGZ24.026.729.5138.95.11
SMF26ASMF26CACEHE26.028.931.9142.14.81
SMF28ASMF28CACGHG28.031.134.4145.44.41
SMF30ASMF30CACKHK30.033.336.8148.44.11
SMF33ASMF33CACMHM33.036.740.6153.33.81
SMF36ASMF36CACPHP36.040.044.2158.13.41
SMF40ASMF40CACRHR40.044.449.1164.53.11
SMF43ASMF43CACTHT43.047.852.8169.42.91
SMF45ASMF45CACVHV45.050.055.3172.72.81
SMF48ASMF48CACXHX48.053.358.9177.42.61
SMF51ASMF51CACZHZ51.056.762.7182.42.41
SMF54ASMF54CADEIE54.060.066.3187.12.31
SMF58ASMF58CADGIG58.064.471.2193.62.11

SMF17CA Absolute Maximum Ratings

ParameterSymbolValueUnit
Peak Pulse Power Dissipation on 10/1000us waveform (Note1)P PPM200Watts
Steady State Power Dissipation at T A =50°CP D1Watts

Notes :

1.Non-repetitive current pulse,T A =25°C.

2.8.3ms single half sine-wave, or equivalent square wave, Duty cycle = 4 pulses per minutes maximum

SMF17CA Thermal Information

ParameterSymbolValueUnit
Operating Junction TemperatureT J-55 to +150°C
Storage Temperature RangeT STG-55 to +150°C
Junction to Ambient on printed circuitR θJA220°C/W

Bi-directionnal

SMF17CA Package Information

Ref.MillimetersMillimetersInchesInches
Ref.Min.Max.Min.Max.
A0.951.450.0370.057
A10.000.100.0000.004
b0.701.200.0280.047
c0.050.300.0020.012
D1.502.000.0590.079
E2.503.100.0980.122
L0.350.900.0140.035
H E3.403.900.1340.154

Variants on the same datasheet

These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.

Part NumberManufacturerPackage
SMF170ALittelfuseSOD-123FL
SMF170CALittelfuseSOD-123FL
SMF17ALittelfuseSOD-123FL

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  • BAT54S – Diotec Semiconductor, Dual Schottky Barrier Diode (Series)

All Diodes datasheetsAll Littelfuse datasheets (70)

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