SMAJ58A
Transient Voltage SuppressorThe SMAJ58A is a transient voltage suppressor from Littelfuse. View the full SMAJ58A datasheet below including key specifications, absolute maximum ratings.
Official SMAJ58A datasheet (PDF) — the source this page was extracted from.
SMAJ58A Key Specifications
| Parameter | Value |
|---|---|
| Packaging | MouseReel |
| Standard Pack Qty | 5000 |
| Weight | 0.064 g (approx.) |
| Test Current (IT) | 1.0 mA |
| Storage Temperature Range | -55°C to +175°C |
| Breakdown Voltage (VBR) Max | 71.2 V |
| Breakdown Voltage (VBR) Min | 64.4 V |
| Operating Temperature Range | -55°C to +150°C |
| Max Peak Pulse Current (Ipp) | 4.3 A |
| Peak Pulse Power Dissipation | 400 W |
| Marking Code (Unidirectional) | RG |
| Max Clamping Voltage (VC) @ Ipp | 93.6 V |
| Max Reverse Leakage (IR) @ VRWM | 5.0 µA |
| Reverse Standoff Voltage (VRWM) | 58 V |
| Peak Forward Surge Current (IFSM) | 40 A |
| Instantaneous Forward Voltage (@IPP=35A) | 3.5 V |
| Steady State Power Dissipation (@TL=75°C) | 1.0 W |
SMAJ58A Overview
Part: SMAJ5.0(C)A - SMAJ170(C)A — Diodes, Inc.
Type: Transient Voltage Suppressor
Description: 400W peak pulse power surface mount transient voltage suppressor available in uni- and bi-directional versions.
Operating Conditions:
- Operating temperature: -55 to +150 °C
- Reverse Standoff Voltage (VRWM): 5.0 V to 160 V
Absolute Maximum Ratings:
- Max junction temperature: +150 °C
- Max storage temperature: +175 °C
Key Specs:
- Peak Pulse Power Dissipation (PPK): 400 W (Non repetitive current pulse, derated above TA = 25 °C)
- Peak Forward Surge Current (IFSM): 40 A (8.3ms single half sine wave, unidirectional units only)
- Steady State Power Dissipation (PM(AV)): 1.0 W (@TL = 75 °C)
- Instantaneous Forward Voltage (VF): 3.5 V (@IPP = 35A, unidirectional units only)
- Breakdown Voltage (VBR) for SMAJ5.0(C)A: 6.40 V (min) to 7.25 V (max) (@IT = 10 mA)
- Max. Reverse Leakage (IR) for SMAJ5.0(C)A: 800 μA (@VRWM = 5.0 V)
- Max. Clamping Voltage (VC) for SMAJ5.0(C)A: 9.2 V (@IPP = 43.5 A)
- Max. Peak Pulse Current (IPP) for SMAJ5.0(C)A: 43.5 A
Features:
- 400W Peak Pulse Power Dissipation
- Glass Passivated Die Construction
- Uni- and Bi-Directional Versions Available
- Excellent Clamping Capability
- Fast Response Time
- Lead Free Finish/RoHS Compliant
Package:
- SMA (0.064 grams approximate)
SMAJ58A Features
- /c183 400W Peak Pulse Power Dissipation
- /c183 Glass Passivated Die Construction
- /c183 Uni- and Bi-Directional Versions Available
- /c183 Excellent Clamping Capability
- /c183 Fast Response Time
- /c183 Lead Free Finish/RoHS Compliant (Note 4)
SMAJ58A Absolute Maximum Ratings
| Characteristic | Characteristic | Symbol | Value | Unit |
|---|---|---|---|---|
| Peak Pulse Power Dissipation (Non repetitive current pulse derated above T A = 25 /c176 C) (Note 1) | Peak Pulse Power Dissipation (Non repetitive current pulse derated above T A = 25 /c176 C) (Note 1) | P PK | 400 | W |
| Peak Forward Surge Current, 8.3ms Single Half Sine Wave Superimposed on Rated Load (JEDEC Method) (Notes 1, 2, & 3) | Peak Forward Surge Current, 8.3ms Single Half Sine Wave Superimposed on Rated Load (JEDEC Method) (Notes 1, 2, & 3) | I FSM | 40 | A |
| Steady State Power Dissipation @TL = 75 /c176 C | Steady State Power Dissipation @TL = 75 /c176 C | PM (AV) | 1.0 | W |
| Instantaneous Forward Voltage (Notes 1, 2, & 3) | @I PP = 35A | V F | 3.5 | V |
| Operating Temperature Range | Operating Temperature Range | T j | -55 to +150 | /c176 C |
| Storage Temperature Range | Storage Temperature Range | T STG | -55 to +175 | /c176 C |
- Notes: 1. Valid provided that terminals are kept at ambient temperature.
- Measured with 8.3ms single half sine-wave. Duty cycle = 4 pulses per minute maximum.
- Unidirectional units only.
- RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
SMAJ58A Package Information
- /c183 Case: SMA
- /c183 Case Material: Molded Plastic. UL Flammability Classification Rating 94V-0
- /c183 Moisture Sensitivity: Level 1 per J-STD-020C
- /c183 Terminals: Lead Free Plating (Matte Tin Finish). Solderable per MIL-STD-202, Method 208
- /c183 Polarity Indicator: Cathode Band (Note: Bi-directional devices have no polarity indicator.)
- /c183 Marking: Date Code and Marking Code See Page 4
- /c183 Weight: 0.064 grams (approximate)
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Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.
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