V5.5MLA0603NH LITTELFUSE Varistor (Varistors Chip) In Stock
Littelfuse V5.5MLA0603NH is a multilayer varistor (MLV) with 5.5 V maximum RMS working voltage, 0.1 J energy absorption capacity, and a compact 0603 surface-mount package for ESD and transient surge protection. It provides fast clamping response and RoHS-compliant Pb-free construction for protecting sensitive IC inputs and data lines. Available worldwide with global shipping from authorized distributors.
- Manufacturer
- LITTELFUSE
- Package
- Varistors Chip
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- V5.5MLA0603NH Datasheet PDF
- Category
- Varistor
- Price
- From $0.0600(MOQ 1)
- Temp Range
- -40.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 5.5 V rated multilayer varistor (MLV) in a 0603 SMT package (1.6 mm × 0.8 mm) for space-efficient ESD and transient overvoltage protection on low-voltage IC pins
- 0.1 J energy absorption capacity with fast sub-nanosecond clamping response to protect sensitive CMOS and digital logic inputs from electrostatic discharge events
- RoHS-compliant (JESD-609 e3, Pb-free) and REACH-compliant construction rated for 4 V RMS continuous operation on signal and data bus protection networks
Applications
The V5.5MLA0603NH is designed for ESD protection on low-voltage data lines, USB and HDMI signal interfaces, and microcontroller I/O pins where transient overvoltage events could damage CMOS logic operating at 3.3 V or 5 V supply rails. Its compact 0603 footprint with 0.1 J energy handling and fast clamping action makes it suitable for board-level ESD protection on portable consumer electronics, industrial communication interfaces, and IoT sensor modules. The 5.5 V maximum working voltage and 4 V RMS rating provide the necessary clamping headroom for 3.3 V and 5 V logic systems while preventing nuisance clamping during normal signal transitions.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 8.25 |
| Circuit RMS Voltage-Max | 4V |
| Energy Absorbing Capacity-Max | 0.1J |
| JESD-609 Code | e3 |
| Mounting Feature | SURFACE MOUNT |
| Package Height | 1mm |
| Package Length | 1.6mm |
| Package Shape | RECTANGULAR PACKAGE |
| Package Style | SMT |
| Package Width | 0.8mm |
| Packing Method | TR, PLASTIC, 7 INCH |
| Resistor Type | VARISTOR |
| Surface Mount | YES |
| Terminal Finish | MATTE TIN OVER NICKEL |
| Terminal Placement | DUAL ENDED |
| Terminal Shape | WRAPAROUND |
| Working Voltage | 5.5V |
| Package | Varistors Chip |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8533.40.40.00 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What voltage does the V5.5MLA0603NH clamp to during an ESD event and how does it protect 3.3 V logic inputs?
The V5.5MLA0603NH has a 5.5 V rated working voltage and clamps transient overvoltages to a safe level for downstream 3.3 V logic by absorbing up to 0.1 J of energy in a sub-nanosecond response time. This ensures that ESD pulses, which can exceed 1 kV in open-air discharge events, are clamped below the 5.5 V breakdown threshold before reaching sensitive CMOS input stages rated at 5 V absolute maximum.
How does the 0603 package size of the V5.5MLA0603NH fit into high-density PCB layouts for IoT and wearable devices?
The 0603 package measures 1.6 mm × 0.8 mm × 1.0 mm, making the V5.5MLA0603NH one of the most compact surface-mount varistor options available for ESD protection. In a wearable IoT device with 8 or more protected I/O lines, placing 8 V5.5MLA0603NH devices requires less than 15 mm² of board area, enabling protection coverage on space-constrained flexible or rigid-flex PCBs without compromising signal integrity.
How many ESD strikes can the V5.5MLA0603NH withstand before degradation in IEC 61000-4-2 testing conditions?
Multilayer varistors like the V5.5MLA0603NH are typically rated for multiple ESD strikes per IEC 61000-4-2 at contact discharge levels of ±2 kV or higher, with the 0.1 J energy rating applying per single strike event. For designs requiring Level 4 IEC 61000-4-2 compliance at ±8 kV contact discharge, multiple varistors in a protection network or a higher-energy-rated MLV in a larger 0805 or 1206 package would be specified.
When should engineers choose the V5.5MLA0603NH over a TVS diode for ESD protection on a 3.3 V USB data line?
The V5.5MLA0603NH multilayer varistor offers bidirectional ESD clamping with extremely low capacitance (typically 5 pF to 15 pF), making it preferable to higher-capacitance TVS diodes on high-speed USB 2.0 or HDMI data lines where line capacitance above 20 pF degrades signal quality. TVS diodes generally offer tighter clamping voltage and higher peak current handling at ±8 kV, so they remain preferred for systems requiring strict IEC 61000-4-2 Level 4 certification with minimum clamping overshoot.
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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+ | $0.0600 | $0.06 |
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