The HD-EMC0803-LW20-2-R is a compact eccentric rotating mass (ERM) coin vibration motor designed for 3.0 VDC drive applications. It features 20 mm lead wires and double-sided adhesive backing for easy mounting in wearables, handhelds, IoT devices, and medical electronics.

Operating at 12,000 ± 3,000 RPM, this low-noise (≤50 dBA) motor provides consistent and efficient haptic feedback while maintaining lightweight durability at only ~1 g.

Key Features

• 3.0 VDC input, starts at 2.4 VDC

• 12,000 ± 3,000 RPM rated speed

• 20 mm lead wires + adhesive backing for fast assembly

• Low acoustic noise ≤50 dBA

• CW/CCW rotation supported

• Lightweight, ~1 g coin motor design

• RoHS/REACH compliant

Specifications

• Operating Voltage Range: 2.6 – 3.6 VDC

• Rated Current (max @3.6 VDC): 85 mA

• Locked Current (max @2.4 VDC): 140 mA

• Terminal Resistance:

  • 1 Phase: 30 ± 20% Ω

  • 2 Phase: 60 ± 20% Ω

• Shaft Pull Strength (min): 3 kg

• Shaft End Play (max): 0.3 mm

• Mechanical Noise (max): 50 dBA

• Weight: ~1 g

• Storage Temperature: −40 to +85 °C

• Operating Temperature: −20 to +60 °C

Reliability & Compliance

• High Temp Test: +85 °C, 96 h

• Low Temp Test: −40 °C, 96 h

• Humidity Test: +70 °C, 90% RH, 96 h

• Thermal Shock: −40 ↔ +85 °C, 1 h cycles × 24

• Temperature Cycling: 2s on / 2s off @ rated V, 8 h total

• Vibration Test: 3 mm, 1000 cpm, XYZ axes, 10 min each

• Drop Test: 1.5 m onto iron plate, 150 g load, 6 faces × 6 drops (36 total)

• Load Test: 60,000 cycles, 2s on / 2s off @ room temp.

• Compliance: RoHS/REACH

Applications

• Wearable electronics with tactile alerts

• Handheld consumer products (controllers, devices, accessories)

• Medical electronics requiring silent haptic cues

• IoT devices needing reliable vibration feedback