TVS Diodes - Transient Voltage Suppressors 20V 500W Unidirectional
SA20A: TVS Diodes - Transient Voltage Suppressors 20V 500W Unidirectional
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| Polarity : | Unidirectional | Clamping Voltage : | 32.4 V | ||
| Operating Voltage : | 20 V | Package / Case : | DO-15? | ||
| Breakdown Voltage : | 22.2 V to 24.5 V | Peak Surge Current : | 15.4 A | ||
| Peak Pulse Power Dissipation : | 500 W | Maximum Operating Temperature : | + 175 C | ||
| Minimum Operating Temperature : | - 65 C | Packaging : | Reel |

The SA20A is designed as one kind of transient voltage suppressor device that has some points of features:(1)Plastic package has Underwriters Laboratory Flammability Classification 94V-0; (2)Glass passivated junction; (3)500W peak pulse power surge capability with a 10/1000ms waveform, repetition rate (duty cycle): 0.01%; (4)Excellent clamping capability; (5)Low incremental surge resistance; (6)Fast response time: typically less than 1.0ps from 0 Volts to V(BR) for uni-directional and 5.0ns for bi-directional types; (7)For devices with V(BR)310V, ID are typically less than 1.0mA; (8)High temperature soldering guaranteed: 265°C/10 seconds 0.375" (9.5mm) lead length, 5lbs (2.3 kg) tension.
The mechanical data of the SA20A are:(1)case: JEDEC DO-204AC molded plastic body over; (2)passivated junction; (3)terminals: Solder plated axial leads, solderable per; (4)MIL-STD-750, Method 2026; (5)polarity: for uni-directional types the color band denotes; (6)the cathode, which is positive with respect to the anode; (7)under normal TVS operation; (8)mounting position: any; (9)weight: 0.015 ounce, 0.4 gram.
The absolute maximum ratings of the SA20A can be summarized as:(1)Peak pulse power dissipation with a 10/1000 ms waveform: Minimum 500 Watts;(2)Peak pulse current with a 10/1000 ms waveform: SEE TABLE 1 Amps;(3)Steady state power dissipation at TL=75°C lead lengths 0.375" (9.5mm): 3.0 Watts;(4)Peak forward surge current, 8.3ms single half sine-wave superimposed on rated load, unidirectional only (JEDEC Method): 70 Amps;(5)Maximum instantaneous forward voltage at 35A for unidirectional only: 3.5 Volts;(6)Operating junction and storage temperature range: -55 to +175 °C. If you want to know more information about the SA20A, please download the datasheet in www.seekic.com or www.chinaicmart.com .
| Technical/Catalog Information | SA20A |
| Vendor | Littelfuse Inc |
| Category | Circuit Protection |
| Package / Case | Axial |
| Packaging | Tape & Reel (TR) |
| Polarization | Unidirectional |
| Power (Watts) | 500W |
| Voltage - Reverse Standoff (Typ) | 20V |
| Voltage - Breakdown | 22.2V |
| Lead Free Status | Lead Free Compliant by Exemption |
| RoHS Status | RoHS Compliant |
| Other Names | SA20A SA20A |