SLD8S30A LITTELFUSE TVS Diode (Uni-directional) (Other) In Stock
Littelfuse SLD8S30A is a unidirectional transient voltage suppressor (TVS) diode rated at 30 V standoff with 48.4 V maximum clamping voltage and excellent clamping capability. Designed for fast ESD and surge protection of sensitive electronics. Compact silicon diode available in surface-mount packages for industrial and automotive applications.
- Manufacturer
- LITTELFUSE
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- SLD8S30A Datasheet PDF
- Category
- TVS Diode (Uni-directional)
- Price
- From $1.4400(MOQ 1)
- Temp Range
- -55.0°C to 175.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 30 V standoff voltage with 33.3 V to 36.8 V breakdown range for robust overvoltage protection
- 48.4 V maximum clamping voltage delivers excellent surge energy absorption for sensitive circuits
- Unidirectional silicon TVS diode with fast sub-nanosecond response to transient events
- Single-element configuration simplifies PCB layout and reduces protection circuit footprint
- Introduced in 2016 with proven field reliability in industrial and automotive surge environments
Applications
The SLD8S30A is used to protect automotive ECUs, industrial sensor lines, and communication bus interfaces operating near 30 V against ESD strikes and inductive load transients. Its 48.4 V clamping voltage limits overstress on downstream ICs, making it suitable for 24 V industrial I/O and CAN bus protection circuits. The single-element unidirectional construction streamlines BOM and layout in power supply input protection stages.
Specifications
| Date Of Intro | 2016-08-24 |
| YTEOL | 8.06 |
| Additional Feature | EXCELLENT CLAMPING CAPABILITY |
| Breakdown Voltage-Max | 36.8V |
| Breakdown Voltage-Min | 33.3V |
| Breakdown Voltage-Nom | 35.05V |
| Clamping Voltage-Max | 48.4V |
| Configuration | SINGLE |
| Diode Element Material | SILICON |
| Diode Type | TRANS VOLTAGE SUPPRESSOR DIODE |
| Forward Voltage-Max (VF) | 1.8V |
| JESD-30 Code | R-PSSO-C1 |
| JESD-609 Code | e3 |
| Non-rep Peak Rev Power Dis-Max | 7000W |
| Number of Elements | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Polarity | UNIDIRECTIONAL |
| Power Dissipation-Max | 8W |
| Reference Standard | AEC-Q101; IEC-61000-4-2, 4-4; UL RECOGNIZED |
| Rep Pk Reverse Voltage-Max | 30V |
| Reverse Current-Max | 50 µA |
| Reverse Test Voltage | 30V |
| Surface Mount | YES |
| Technology | AVALANCHE |
| Terminal Finish | MATTE TIN |
| Terminal Form | C BEND |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.50 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the breakdown and clamping voltage specifications of the SLD8S30A?
The SLD8S30A has a nominal breakdown voltage of 35.05 V with a minimum of 33.3 V and a maximum of 36.8 V at 1 mA test current. Under peak transient conditions its maximum clamping voltage is 48.4 V, which represents the worst-case voltage that will appear across protected downstream circuits during a surge event.
For which bus or interface voltage levels is the SLD8S30A best matched as a protection device?
With a 30 V standoff voltage, the SLD8S30A is ideally matched for protecting 24 V industrial field buses such as Profibus, RS-485, and CAN, as well as 28 V avionics power rails. The 33.3 V minimum breakdown ensures the device remains non-conducting during normal 24 V operation while clamping dangerous transients above 48.4 V before they can damage input stages rated for 30 V to 40 V maximum.
How quickly does the SLD8S30A respond to an ESD transient compared to an MOV?
Silicon TVS diodes like the SLD8S30A respond in sub-nanosecond time (typically under 1 ps for avalanche triggering), which is orders of magnitude faster than metal oxide varistors (MOVs) that typically respond in 20 ns to 100 ns. This speed advantage makes the SLD8S30A far more effective at clamping fast ESD events defined in IEC 61000-4-2, where rise times of 0.7 ns to 1 ns are specified.
Can the SLD8S30A protect a 24 V industrial I/O line that experiences repetitive inductive switching transients?
Yes. The SLD8S30A is well-suited for 24 V industrial I/O protection because its 30 V standoff remains non-conducting during normal operation while its 48.4 V clamp absorbs inductive kick transients from relay coils and solenoids. Repetitive surges from inductive loads are handled provided peak power stays within the device's rated peak pulse power (typically 600 W for 8/20 µs pulses), making it reliable across thousands of switching cycles.
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About LITTELFUSE
LITTELFUSE is a leading electronic component manufacturer. FindMyChip sources LITTELFUSE ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.5300 | $4.53 |
| 10+ | $2.8100 | $28.10 |
| 100+ | $2.1012 | $210.12 |
| 500+ | $1.4400 | $720.00 |
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