Product Overview
The PCS Series Current Sense Transformers are designed for accurate current measurement in various electronic applications. These surface-mount transformers offer high frequency operation up to 1 MHz and a wide operating temperature range of -40 C to 125 C. They are RoHS compliant and suitable for use in switched-mode power supplies, motor control, overload sensing, and general AC current applications. The series includes models for rated currents up to 20 A (PCS020) and 40 A (PCS040), providing reliable performance with excellent isolation between windings.
Product Attributes
- Brand: Bourns
- Series: PCS Series
- Compliance: RoHS compliant
- Core Material: P4
- Bobbin Material: PM9630
- Wire Material: XUEW and UEWH
- Tape Material: PI-310
- Glue Material: S-9001
- Clip Material: SUS301
- Moisture Sensitivity Level: 1
Technical Specifications
| Specification | PCS020 | PCS040 | Value |
|---|---|---|---|
| Rated Current (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 | |
| Volt-time Product on Secondary (Max.) | 7 V-sec | 1 V-sec | |
| Packaging (PCS020) | 1000 pcs. per 13-inch reel | ||
| Packaging (PCS040) | 300 pcs. per 13-inch reel | ||
Electrical Specifications @ 25 C
| Bourns Part Number | Turns Ratio (Primary : Secondary) | Secondary Inductance Min. (mH) | DCR Secondary Max. () | Terminating Resistance () | Primary Ref. (m) |
|---|---|---|---|---|---|
| PCS020-EE05081S | 1 : 20 | 0.081 | 1 | 0.4 | 10.8 |
| PCS020-EE05180S | 1 : 30 | 0.18 | 1.5 | 0.87 | 16.2 |
| PCS020-EE05320S | 1 : 40 | 0.32 | 2 | 1.14 | 21.6 |
| PCS020-EE05500S | 1 : 50 | 0.5 | 2.5 | 1.5 | 27 |
| PCS020-EE05730S | 1 : 60 | 0.73 | 3 | 1.98 | 32.4 |
| PCS020-EE05980S | 1 : 70 | 0.98 | 3.5 | 4.75 | 37.8 |
| PCS020-EE0502KS | 1 : 100 | 2.0 | 5 | 5.5 | 54 |
| PCS020-EE0503KS | 1 : 125 | 3.0 | 6.25 | 7 | 67.5 |
| PCS040-EF13340S | 1 : 20 | 0.34 | 0.5 | 0.18 | 50.8 |
| PCS040-EF13760S | 1 : 30 | 0.76 | 0.8 | 0.265 | 76.2 |
| PCS040-EF1301KS | 1 : 40 | 1.36 | 1 | 0.56 | 101.6 |
| PCS040-EF1302KS | 1 : 50 | 2.12 | 1.3 | 0.705 | 127 |
| PCS040-EF1303KS | 1 : 60 | 3.06 | 1.5 | 0.85 | 152.4 |
| PCS040-EF1304KS | 1 : 70 | 4.16 | 1.8 | 1 | 177.8 |
| PCS040-EF1305KS | 1 : 80 | 5.44 | 2 | 1.15 | 203.2 |
| PCS040-EF1308KS | 1 : 100 | 8.5 | 2.5 | 1.45 | 254 |
| PCS040-EF1313KS | 1 : 125 | 13.3 | 3.1 | 1.85 | 317.5 |
| PCS040-EF1319KS | 1 : 150 | 19.2 | 3.8 | 2.25 | 381 |
| PCS040-EF1334KS | 1 : 200 | 34 | 5 | 4.06 | 508 |
Product Dimensions
Dimensions are in MM (INCHES). Unless otherwise specified, all tolerances are 0.25 / (.010).
PCS020 Dimensions
Top View: 6.22 MAX. (.245 MAX.)
Side View: 5.97 MAX. (.235 MAX.)
PCS040 Dimensions
Top View: 8.13 MAX. (.320 MAX.)
Side View: 8.00 MAX. (.315 MAX.)
General Dimensions (Both Series)
- Pin 1 indicator present.
- Pin spacing: 2.54 (.100).
- Overall dimensions vary by model, refer to detailed drawings.
How To Order
Format: PCS [Rated Current] - [Bobbin Size] [Inductance] [PCB Type]
Example: PCS020-EE05081S
- Model: PCS
- Rated Current: 020 (20 A), 040 (40 A)
- Bobbin Size: EE05 (Bobbin EE5), EF13 (Bobbin EF12.6)
- Inductance: See table for specific values (e.g., 081 for 81 H)
- PCB Type: S = SMD Soldering Profile
Soldering Profile
Lead-free Solder Profile:
- Ramp Up: 3 C/s. max.
- Pre-heat: 150 C ~ 200 C, 60 s. ~ 120 s.
- Reflow: 250 +0/-5 C, 10 s. max. (tp < 30 s.)
- Cool Down: 6 C/s. max.
- Duration from room temperature to peak temperature is 8 minutes maximum.
2411220604_BOURNS-PCS020-EE05730S_C6251129.pdf
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