1206 3.3R 1W resistor selection parameter description
Date：2025-06-27
Viewed：41
Based on your list of 6 resistor models with 1206 package, 3.3 Ω (3.3R), 1W power, and ± 1% accuracy, the following comprehensive analysis is conducted from core characteristics, applicable scenarios, and selection suggestions to help you make quick decisions:
1、 Comparison of Key Characteristics of Models
|Model | Manufacturer | Special Performance | Applicable Scenarios | Price Reference|
|EAM16FT3R30DES | Energy saving | Sulfur resistant | Sulfur containing environment (industrial/automotive/outdoor)
|ELR16FT3R30DES | Not explicitly mentioned | Basic metal film | General scenario (no special requirements)
|TRL120610F3R30P05Z | Tian Er | Ordinary metal film | Consumer electronics, conventional circuits | TGL120610F3R30P05Z | Tian Er | Surge resistance | Power/motor control (transient impact protection)
|TSL120610F3R30P05Z | Tian Er | Anti sulfurization | Sulfur containing environment (same as EAM)
|EGM16FT3R30DES | Billion Energy | Surge Resistance+Vehicle Certification | Automotive Electronics/New Energy (High Reliability Scenario)
Note: All models share the following characteristics: 1206 package, 3.3 Ω± 1%, 1W power, ± 50ppm/℃ temperature drift.
2、 Recommended by scene selection
1. Sulfur containing/corrosive environments (industrial, automotive fuel zones, outdoor)
Preferred: EAM16FT3R30DES (Yineng) or TSL120610F3R30P05Z (Tian'er)
Reason:
The surface multi-layer passivation process (SiO ₂+epoxy resin) blocks the corrosion of sulfides (such as H ₂ S) on the electrode, increasing its lifespan by more than three times.
Suitable for: fuel vehicle ECU, chemical PLC module, photovoltaic inverter (humid and hot sulfur-containing atmosphere).
2. High wave risk scenarios (power input, motor drive, fast charging)
Preferred: EGM16FT3R30DES (Yineng) or TGL120610F3R30P05Z (Tian'er)
Reason:
Nickel chromium alloy film layer+thickened electrode, capable of withstanding 20A/10 μ s surge current (certified by IEC 6100045).
Vehicle grade AECQ200 certification (EGM series), capable of withstanding high temperature and humidity for 3000 hours (85 ℃/85% RH).
Suitable for: car charger (OBC), inverter IGBT protection, 100W+fast charging adapter.
3. Low cost universal scenarios (consumer electronics, non harsh environments)
Preferred: TRL120610F3R30P05Z (Day 2)
Reason:
Basic metal film resistor, without special protection but with standard parameters, with a unit price as low as ¥ 0.2387 (5k purchase quantity).
Suitable for temperature controlled scenarios such as router power supplies and home appliance control boards.
4. Need to balance cost and reliability (industrial control, energy storage equipment)
Alternative: ELR16FT3R30DES
Attention: The search results do not specify its characteristics. If it is a basic model of Yineng with performance similar to TRL series, it is recommended to prioritize selecting a specific model.
3、 Deep analysis of key differences
1. Anti sulfurization vs anti surge
Anti sulfurization (EAM/TSL): solves the problem of electrode sulfurization failure caused by sulfur-containing environments (generating Ag ₂ S and causing resistance drift).
Surge resistant (EGM/TGL): Suppresses instantaneous current surges (such as plugging and unplugging charging guns, motor start stop), and protects the backend MOSFET/IC.
2. Importance of Vehicle Regulations Certification
