SMDA15CE3 Microchip TVS Diode (Bi-directional) (Small Outline Packages) In Stock
Microchip SMDA15CE3 is a bidirectional TVS diode array in an 8-SO package featuring 4 separate silicon elements with a 16.7 V minimum breakdown voltage and 30 V maximum clamping voltage at 5 A (8/20 µs) peak pulse current. It provides 300 W peak power dissipation for ESD and surge protection on multi-line interfaces. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- SMDA15CE3 Datasheet PDF
- Category
- TVS Diode (Bi-directional)
- Temp Range
- -55.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4 separate bidirectional TVS elements in compact 8-SO package protect 4 independent signal lines simultaneously
- 300 W peak power dissipation capability with 30 V clamping voltage at 5 A (8/20 µs) surge pulse
- 16.7 V minimum breakdown voltage suited for protecting 12 V and 15 V bus lines from transient overvoltage events
- Silicon TVS construction provides sub-nanosecond response time for reliable ESD and lightning surge clamping
Applications
The SMDA15CE3 is used for ESD and transient overvoltage protection on multi-line interfaces in industrial communication buses, automotive sensor lines, and RS-485 or RS-422 transceivers operating at 12 V to 15 V supply rails. Its 4-element array configuration allows a single 8-SO package to protect 4 bidirectional signal lines against 300 W surge transients. Power supply input filtering, I/O port protection, and industrial fieldbus protection are typical end applications.
Specifications
| YTEOL | 6.38 |
| Breakdown Voltage-Min | 16.7V |
| Breakdown Voltage-Nom | 16.7V |
| Clamping Voltage-Max | 30V |
| Configuration | SEPARATE, 4 ELEMENTS |
| Diode Element Material | SILICON |
| Diode Type | TRANS VOLTAGE SUPPRESSOR DIODE |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Non-rep Peak Rev Power Dis-Max | 300W |
| Number of Elements | 4 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Polarity | BIDIRECTIONAL |
| Qualification Status | Not Qualified |
| Rep Pk Reverse Voltage-Max | 15V |
| Surface Mount | YES |
| Technology | AVALANCHE |
| Terminal Finish | MATTE TIN |
| Terminal Form | GULL WING |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.50 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SMDA15CE3:
Voltage Suppressor Diode, 300W, 15V V(RWM), Bidirectional, 4 Element, Silicon
Frequently Asked Questions
What is the clamping voltage and peak pulse current rating of the SMDA15CE3 TVS array?
The SMDA15CE3 clamps transient overvoltages to a maximum of 30 V while conducting up to 5 A peak pulse current under an 8/20 µs waveform, with 300 W peak power dissipation. The 16.7 V minimum breakdown voltage ensures the device remains in standby mode during normal 12 V or 15 V bus operation, triggering only during overvoltage transients.
How many signal lines does one SMDA15CE3 protect and in which interface standards is it commonly deployed?
A single SMDA15CE3 protects 4 separate bidirectional signal lines from one 8-SO package, making it ideal for RS-485, RS-422, CAN bus, and industrial 4-wire sensor interfaces where each line requires independent bidirectional TVS clamping. Protecting 4 lines with one component instead of 4 discrete TVS diodes reduces BOM count and PCB area by approximately 60%.
For automotive sensor protection circuits operating at 12 V, how does SMDA15CE3 compare to a discrete TVS diode solution?
For a 12 V automotive sensor bus, the SMDA15CE3's 16.7 V breakdown and 30 V clamping voltage leave adequate margin above the 12 V nominal rail while clamping load dump or ESD transients well below the 40 V stress limit of typical 12 V rail components. Using the SMDA15CE3 array replaces 4 discrete TVS diodes with 1 package, saving approximately 3 mm × 2 mm of board space per protected signal pair in underhood ECU designs.
Is SMDA15CE3 compliant with RoHS requirements, and what does the E3 suffix indicate?
Yes, the E3 suffix in SMDA15CE3 denotes JESD-609 Code e3 RoHS compliance, confirming the device is manufactured with lead-free, halogen-free materials meeting current environmental directives. This makes it suitable for automotive, industrial, and consumer electronics designs that must comply with EU RoHS 2 directive requirements across the full production lifecycle.
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