ENMG / SOLID-STATE RELAYS
EQM / EQT
Optically isolated PCB solid-state relays
LED-input semiconductor relays for PCB integration, with DC MOSFET, bidirectional MOSFET and AC TRIAC output options in SIP, surface-mount and DIP packages.
Request a quote ↗TECHNICAL DATA / EQM / EQT
Specifications & selection.
- Six published output/package combinations.
- Current-driven LED input, typically10–18 mA.
- Model-specific isolation and thermal limits.
| Model | Output topology | Current | Voltage class | Package | Isolation test |
|---|---|---|---|---|---|
| EQM12A060-S | Single MOSFET,DC | 2 A | 600 V blocking/DC class | SIP4 | 3000 Vrms |
| EQM14A006-S | Single MOSFET,DC | 4 A | 60 V blocking/DC class | SIP4 | 3000 Vrms |
| EQM110A06-S | Single MOSFET,DC | 10 A | 60 V blocking/DC class | SIP4 | 3000 Vrms |
| EQM52A006-S6 | Back-to-back MOSFET,AC/DC | 2 A | 60 V peak class | SMD6 | 5000 Vrms |
| EQT3A020-S | TRIAC,AC | 3 A | 24–280 VAC,47–63 Hz | SIP4 | 3000 Vrms |
| EQT1A220-D8 | TRIAC,AC | 1.2 A | 24–280 VAC,47–63 Hz | DIP-8 | 4000 Vrms |
| Model | Maximum Ron | Maximum leakage | On/off maximum | Single pulse peak | Output dissipation limit |
|---|---|---|---|---|---|
| EQM12A060-S | 0.5 Ω at2 A | 5 µA at600 V | 5/2 ms | 4 A,10 ms | 2 W |
| EQM14A006-S | 50 mΩ at4 A | 10 µA at60 V | 5/2 ms | 7 A,100 ms | 2.5 W |
| EQM110A06-S | 20 mΩ at5 A | 10 µA at60 V | 5/2 ms | 40 A,100 ms | 2.4 W |
| EQM52A006-S6 | 0.1 Ω at2 A | 10 µA at60 V | 2/1 ms | 4 A,100 ms | 0.8 W |
| Parameter | EQT3A020-S | EQT1A220-D8 |
|---|---|---|
| Blocking voltage | 700 V repetitive peak | 700 V repetitive peak |
| Nonrepetitive50Hz cycle surge | 45 A | 12 A |
| On-state voltage | ≤1.5 V at3 A;typical1.2 V | ≤1.5 V at1.2 A;typical1.1 V |
| Leakage at700V | ≤10 µA | ≤10 µA |
| Minimum load / holding current | Minimum load100 mA | Holding current≤50 mA; minimum load unspecified |
| Zero-cross threshold | Typical10 V; maximum20 V | Typical10 V; maximum20 V |
| Operate/release | ≤half cycle+1 ms | ≤half cycle+1 ms |
| Parameter | Value |
|---|---|
| LED forward voltage | Typical1.2 V /maximum1.3 V at10 mA |
| Trigger current | Typical3 mA /maximum8 mA |
| Recommended LED current | 10–18 mA with current limiting |
| Absolute LED current / reverse voltage | 50 mA /6 V; not normal operating targets |
| Input power ceiling | 75 mW;EQM52A006-S6:50 mW |
| Ambient | −30 to +85 °C, no condensation or icing |
| SIP4 body | 20.2±0.2 ×11.2±0.2 ×3.0±0.2 mm;2.54 mm lead pitch |
| SMD6 body | 10.0±0.3 ×7.6±0.2 ×2.5 mm max;1.27 mm pitch |
| DIP-8 body | 9.4±0.3 ×7.6±0.2 ×3.3±0.2 mm; confirm pin5 omission and footprint |
Selection & installation notes
- The input is an LED, not a voltage-rated24 V control port. Use a current-limited driver or calculate R=(Vin−VF)/Iin, including resistor power, voltage tolerance and GPIO capacity.
- Blocking voltage is not a recommended nominal working voltage. Allow transient margin;60 V peak corresponds mathematically to42.4 Vrms for a sine wave before any margin, not an unconditional42 VAC system rating.
- Only the back-to-back MOSFET variant supports bidirectional blocking. Single-MOSFET versions have a body diode and require the specified DC output polarity.
- Conduction loss for MOSFETs is approximatelyI²Ron and rises with temperature. Meet both package power and junction-temperature limits; headline current is conditional on thermal design.
- Millisecond switching times do not support arbitrary high-frequency PWM. Zero-cross TRIAC types require AC current commutation and are not DC switches or standalone phase controllers.
- Verify the exact package drawing, PCB creepage, insulation category and solder profile. Isolation-test voltage is not continuous working voltage.
- Fit load-appropriate suppression and protection; a DC flyback diode is placed across the inductive load with correct polarity, not indiscriminately across the switch.
Based on the official Chinese product page and selection charts ↗. Checked 2026-09-15. Confirm the current specification for the exact model when ordering.
TECHNICAL RESOURCES
Plan your integration.
ENMG relays — English product-family brochure.
This is a product-family brochure. Request a model-specific datasheet and installation drawing with your inquiry.