Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Manufacturer | Littelfuse |
| Exact MPN | V5.5MLA0402NR |
| Product Category | Varistors, MOVs |
| Package | 0402 |
| Packing | 10,000 pcs/reel |
| Varistor Voltage | 8.95V |
| Clamping Voltage | 21V |
| DC Working Voltage | 5.5V |
| AC Working Voltage | 4V |
Product Overview
Littelfuse MLA multilayer varistor, leadless 0402 surface-mount transient suppressor. Exact MPN is listed in Littelfuse resources.
The 0402 format minimizes board area and capacitance relative to larger standard MLA parts, but its surge-energy capability is limited.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Littelfuse |
| Exact MPN | V5.5MLA0402NR |
| Functional Category | Varistors, MOVs |
| Package | 0402 |
| Packing | 10,000 pcs/reel |
| Source Catalog ID | C126844 |
| Varistor Voltage | 8.95V |
| Clamping Voltage | 21V |
| DC Working Voltage | 5.5V |
| AC Working Voltage | 4V |
Selection Notes
low-voltage rail margin; clamp voltage; 0402 area; capacitance; 20-A/0.05-J transient capability.
Keep continuous operating voltage below the applicable rating and check varistor/clamping levels against both the protected node and expected surge.
Manufacturer Decision-Relevant Notes
VM(DC) 5 V; VM(AC) 4 V RMS; VN(DC) 7.1–10.8 V at 1 mA; VC 19 V at 1 A, 8/20 µs; ITM 20 A; WTM 0.05 J; typical capacitance 220 pF at 1 MHz; operating temperature -40 to +125 °C.
Design Considerations
- Verify rail ≤5 V DC/4 V RMS; check 19-V clamping against the protected IC; limit event current and energy to 20 A/0.05 J ratings; account for 220-pF loading; verify 0402 assembly yield and pad geometry.
Application Fit
ESD, EFT, inductive-switching and board-level IC/transistor protection; EMC support.
Exact Variant and Procurement Notes
0402 = 1.0 × 0.5 mm; N = nickel barrier; R = 7-inch reel, 10,000 pieces. Official resource describes it as standard 5.5-V MLA.
Manufacturer Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. Physical product, label, packaging, and Date Code photos may be provided where appropriate.
Request a Quote
For V5.5MLA0402NR quotation, provide the exact MPN, required quantity, destination, target Date Code if applicable, and any inspection or testing requirements.
For greater surge-current and energy capacity within Littelfuse’s 5.5 V-class MLA range, compare V5.5MLA0603NH (0603, plastic-tape reel). The 0603 part is rated 30 A peak surge current and 0.1 J energy, versus 20 A and 0.05 J for this 0402 part, but its typical 1 MHz capacitance is higher (960 pF versus 220 pF). Verify board space, loading and clamping requirements rather than assuming interchangeability.
