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WLCW1608Z0JR10PB Equivalent & Substitute Parts
Part Overview
The WLCW1608Z0JR10PB is a 100 nH unshielded drum core wirewound inductor manufactured by Walsin Technology Corporation in the 0603 (1608 Metric) surface mount package. This component is rated for 400 mA continuous current with a maximum DC resistance of 580 mOhm and operates across the temperature range of -40°C to 125°C. The part maintains an active product status and is available in tape and reel packaging. Equivalent substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when supply chain optimization is required.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 100 nH |
| Tolerance | ±5% |
| Current Rating | 400 mA |
| DC Resistance (Max) | 580 mOhm |
| Package / Case | 0603 (1608 Metric) |
| Mounting Type | Surface Mount |
| Core Type | Ceramic Drum Core, Unshielded |
| Operating Temperature | -40°C ~ 125°C |
| Q @ Frequency | 34 @ 150 MHz |
| Self Resonant Frequency | 1.4 GHz |
Substitute Part Grouping Explanation
Substitute parts for the WLCW1608Z0JR10PB are identified based on strict electrical and mechanical parameter matching. The substitution criteria include:
Critical Matching Parameters:
- Inductance value: 100 nH
- Inductance tolerance: ±5%
- Current rating: 400 mA minimum
- DC resistance: 580 mOhm maximum
- Package designation: 0603 (1608 Metric)
- Core material: Ceramic
- Shielding configuration: Unshielded
- Mounting type: Surface Mount
- Operating temperature range: -40°C ~ 125°C
- Q factor: 34 @ 150 MHz
- Self resonant frequency: 1.4 GHz
Parts meeting all specified parameters are classified as direct parametric equivalents and are suitable for direct substitution in circuit applications without design modification.
Parameter Comparison
| Parameter | WLCW1608Z0JR10PB (Walsin) | WB0603TR10SJ (Cal-Chip) |
|---|---|---|
| Manufacturer | Walsin Technology Corporation | Cal-Chip Electronics, Inc. |
| Inductance | 100 nH | 100 nH |
| Tolerance | ±5% | ±5% |
| Current Rating (Amps) | 400 mA | 400 mA |
| DC Resistance (Max) | 580 mOhm | 580 mOhm |
| Package / Case | 0603 (1608 Metric) | 0603 (1608 Metric) |
| Core Type | Ceramic Drum Core, Unshielded | Ceramic Drum Core, Unshielded |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Q @ Frequency | 34 @ 150 MHz | 34 @ 150 MHz |
| Self Resonant Frequency | 1.4 GHz | 1.4 GHz |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) |
| Product Status | Active | Active |
Engineering Selection Recommendations
Both the WLCW1608Z0JR10PB and WB0603TR10SJ are active product offerings with identical electrical and mechanical specifications. Selection between these parts may be based on:
Availability and Inventory: The WB0603TR10SJ (Cal-Chip Electronics) currently maintains higher inventory levels (9,101 pieces) compared to the WLCW1608Z0JR10PB (723 pieces), which may influence procurement decisions for high-volume applications.
Compliance and Certifications: The WB0603TR10SJ includes documented RoHS Compliance status, Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), and REACH Unaffected status. These certifications should be verified against specific application requirements and regional regulatory mandates.
Manufacturer Support: Both manufacturers maintain active product lines for this inductor value and package type, ensuring continued availability and technical support.
Frequently Asked Questions (FAQ)
Q: Can the WB0603TR10SJ be used as a direct replacement for the WLCW1608Z0JR10PB?
A: Yes. Both parts are parametric equivalents with identical inductance (100 nH), tolerance (±5%), current rating (400 mA), DC resistance (580 mOhm maximum), package designation (0603/1608 Metric), core material (ceramic), and operating temperature range (-40°C to 125°C). Direct substitution is supported without circuit modification.
Q: Are there any differences in physical dimensions between these parts?
A: No. Both parts share identical physical dimensions: 0.071" L × 0.044" W (1.80 mm × 1.12 mm) with a maximum seated height of 0.040" (1.02 mm).
Q: What is the significance of the Q factor specification?
A: The Q factor of 34 @ 150 MHz is identical for both parts and indicates the quality factor at the specified test frequency. This parameter is maintained across both manufacturers' offerings.
Q: Do both parts have the same self-resonant frequency?
A: Yes. Both the WLCW1608Z0JR10PB and WB0603TR10SJ have a self-resonant frequency of 1.4 GHz, which defines the frequency limit for inductor operation in linear mode.
Q: What packaging format is used for these inductors?
A: Both parts are supplied in Tape & Reel (TR) format, which is standard for surface mount component automation and high-volume assembly processes.
Q: Are there compliance differences between the two manufacturers?
A: The WB0603TR10SJ includes explicit RoHS Compliance certification and REACH Unaffected status documentation. Compliance requirements should be confirmed against application-specific regulatory standards.
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