Product Overview
The PCS Series Current Sense Transformers are designed for accurate current monitoring in a variety of electronic applications. Featuring surface mount technology, these transformers offer high-frequency operation up to 1 MHz and a wide operating temperature range from -40 C to 125 C. They are suitable for demanding applications such as switched-mode power supplies, motor control, overload sensing, and general AC current measurements. The series includes models with primary current ratings up to 20 A (PCS020) and 40 A (PCS040), providing versatile solutions for power management and control systems.
Product Attributes
- Brand: Bourns
- Compliance: RoHS compliant
- Materials: Core (P4), Bobbin (PM9630), Wire (XUEW and UEWH), Tape (PI-310), Glue (S-9001), Clip (SUS301)
Technical Specifications
| Specification | PCS020 | PCS040 | General |
|---|---|---|---|
| Rated Current on Primary | Up to 20 A (10 A typical) | Up to 40 A | |
| Frequency | Up to 1 MHz | ||
| Operating Temperature | -40 C to +125 C | ||
| Isolation Between Windings | 500 Vrms | 800 Vrms | |
| Moisture Sensitivity Level | 1 | ||
| Packaging | 1000 pcs. per 13-inch reel | 300 pcs. per 13-inch reel | |
Electrical Specifications @ 25 C
| Bourns Part Number | Turns Ratio Primary : Secondary | Secondary Inductance Min. (mH) | DCR Volt-time Product on Secondary Max. (V-sec) | Terminating Resistance (1 V Output at Rated Current) () | Primary Ref. (m) | Secondary Max. () |
|---|---|---|---|---|---|---|
| PCS020-EE05081S | 1 : 20 | 0.081 | 7 | 0.4 | 10.8 | 1 |
| PCS020-EE05180S | 1 : 30 | 0.18 | 7 | 0.87 | 16.2 | 1.5 |
| PCS020-EE05320S | 1 : 40 | 0.32 | 7 | 1.14 | 21.6 | 2 |
| PCS020-EE05500S | 1 : 50 | 0.5 | 7 | 1.5 | 27 | 2.5 |
| PCS020-EE05730S | 1 : 60 | 0.73 | 7 | 1.98 | 32.4 | 3 |
| PCS020-EE05980S | 1 : 70 | 0.98 | 7 | 4.75 | 37.8 | 3.5 |
| PCS020-EE0502KS | 1 : 100 | 2.0 | 7 | 5.5 | 54 | 5 |
| PCS020-EE0503KS | 1 : 125 | 3.0 | 7 | 7 | 67.5 | 6.25 |
| PCS040-EF13340S | 1 : 20 | 0.34 | 1 | 0.18 | 50.8 | 0.5 |
| PCS040-EF13760S | 1 : 30 | 0.76 | 1 | 0.265 | 76.2 | 0.8 |
| PCS040-EF1301KS | 1 : 40 | 1.36 | 1 | 0.56 | 101.6 | 1 |
| PCS040-EF1302KS | 1 : 50 | 2.12 | 1 | 0.705 | 127 | 1.3 |
| PCS040-EF1303KS | 1 : 60 | 3.06 | 1 | 0.85 | 152.4 | 1.5 |
| PCS040-EF1304KS | 1 : 70 | 4.16 | 1 | 1 | 177.8 | 1.8 |
| PCS040-EF1305KS | 1 : 80 | 5.44 | 1 | 1.15 | 203.2 | 2 |
| PCS040-EF1308KS | 1 : 100 | 8.5 | 1 | 1.45 | 254 | 2.5 |
| PCS040-EF1313KS | 1 : 125 | 13.3 | 1 | 1.85 | 317.5 | 3.1 |
| PCS040-EF1319KS | 1 : 150 | 19.2 | 1 | 2.25 | 381 | 3.8 |
| PCS040-EF1334KS | 1 : 200 | 34 | 1 | 4.06 | 508 | 5 |
Applications
- Switched-mode power supplies
- Motor control
- Overload sensing
- AC current applications
Product Dimensions
Dimensions are provided in millimeters (inches) with tolerances of 0.25 / (.010) unless otherwise specified.
Soldering Profile
The soldering profile indicates a maximum ramp-up time from room temperature (25 C) to peak temperature of 8 minutes. Lead-free solder is recommended. Key stages include pre-heat (150 ~ 200 C for 60 s. ~ 120 s.), reflow (250 +0/-5 C for 10 s. max.), and cool down (ramp rates up to 6 C/s. max.).
How To Order
The Bourns part numbering system for the PCS Series is structured as follows: PCS [Rated Current] - [Bobbin Size] [Inductance] [PCB Type]
- Model: PCS
- Rated Current: 020 (20 A), 040 (40 A)
- Bobbin Size: EE05 (Bobbin EE5), EF13 (Bobbin EF12.6)
- Inductance: Specified by a three-digit code (e.g., 081 for 81 H)
- PCB type: S (SMD)
Example: PCS020-EE05081S
2411220604_BOURNS-PCS040-EF1305KS_C6142210.pdf
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