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C1005JB1E684M050BC Equivalent & Substitute Parts
Part Overview
The C1005JB1E684M050BC is a 0.68 µF ±20% 25V ceramic capacitor in 0402 (1005 Metric) surface mount package manufactured by TDK Corporation. This part carries Last Time Buy status, indicating it is no longer in active production. Equivalent and substitute parts are necessary to ensure design continuity and maintain supply chain reliability for applications requiring this capacitance and voltage rating.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Capacitance | 0.68 µF |
| Tolerance | ±20% |
| Voltage Rating | 25V |
| Temperature Coefficient | JB |
| Operating Temperature Range | -25°C ~ 85°C |
| Package / Case | 0402 (1005 Metric) |
| Mounting Type | Surface Mount, MLCC |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the C1005JB1E684M050BC is determined by the following critical parameters: capacitance value (0.68 µF), package size (0402), mounting type (Surface Mount MLCC), and compliance certifications (ROHS3, REACH Unaffected). Substitute parts must maintain identical or superior electrical performance within these constraints.
Substitutes are grouped into three categories:
Category 1: Direct Equivalents (Same Capacitance, Voltage, Tolerance) Parts with identical 0.68 µF capacitance, 25V rating, and ±20% tolerance but improved specifications (higher voltage rating or tighter tolerance) or different packaging formats.
Category 2: Upgraded Tolerance (Same Capacitance, Voltage, Tighter Tolerance) Parts with 0.68 µF capacitance and 25V rating but ±10% tolerance, providing improved accuracy.
Category 3: Enhanced Temperature Coefficient (Same Capacitance, Voltage, X5R Coefficient) Parts with 0.68 µF capacitance and 25V rating but X5R temperature coefficient, offering extended operating temperature range (-55°C ~ 85°C).
Category 4: Higher Voltage Rating (Same Capacitance, Higher Voltage) Parts with 0.68 µF capacitance but 35V rating, providing voltage margin for circuit protection.
Category 5: Cross-Manufacturer Alternative (Different Manufacturer) Samsung Electro-Mechanics CL05A474KA5NNNC with 0.47 µF capacitance as a near-value alternative for applications with relaxed capacitance tolerance.
Parameter Comparison
| Part Number | Manufacturer | Capacitance | Tolerance | Voltage | Temp Coeff | Temp Range | Packaging | Status |
|---|---|---|---|---|---|---|---|---|
| C1005JB1E684M050BC | TDK | 0.68 µF | ±20% | 25V | JB | -25°C ~ 85°C | Cut Tape (CT) | Last Time Buy |
| C1005JB1E684K050BC | TDK | 0.68 µF | ±10% | 25V | JB | -25°C ~ 85°C | Tape & Reel (TR) | Last Time Buy |
| C1005JB1V684K050BC | TDK | 0.68 µF | ±10% | 35V | JB | -25°C ~ 85°C | Cut Tape (CT) | Last Time Buy |
| C1005JB1V684M050BC | TDK | 0.68 µF | ±20% | 35V | JB | -25°C ~ 85°C | Cut Tape (CT) | Last Time Buy |
| C1005X5R1E684K050BC | TDK | 0.68 µF | ±10% | 25V | X5R | -55°C ~ 85°C | Tape & Reel (TR) | Not For New Designs |
| C1005X5R1E684M050BC | TDK | 0.68 µF | ±20% | 25V | X5R | -55°C ~ 85°C | Tape & Reel (TR) | Not For New Designs |
| C1005X5R1V684K050BC | TDK | 0.68 µF | ±10% | 35V | X5R | -55°C ~ 85°C | Tape & Reel (TR) | Not For New Designs |
| C1005X5R1V684M050BC | TDK | 0.68 µF | ±20% | 35V | X5R | -55°C ~ 85°C | Tape & Reel (TR) | Not For New Designs |
| CL05A474KA5NNNC | Samsung Electro-Mechanics | 0.47 µF | ±10% | 25V | X5R | -55°C ~ 85°C | Cut Tape (CT) & Digi-Reel® | Active |
Engineering Selection Recommendations
For Direct Replacement with Improved Tolerance: C1005JB1E684K050BC provides identical electrical performance with tighter ±10% tolerance while maintaining the same 25V rating and JB temperature coefficient. This part is available in Tape & Reel packaging.
For Higher Voltage Margin: C1005JB1V684M050BC or C1005JB1V684K050BC offer 35V rating with the same 0.68 µF capacitance, providing additional voltage headroom. Both maintain JB temperature coefficient and are available in Cut Tape packaging.
For Extended Temperature Range: C1005X5R1E684M050BC or C1005X5R1E684K050BC provide X5R temperature coefficient with operating range of -55°C ~ 85°C while maintaining 25V rating. These parts carry Not For New Designs status and are available in Tape & Reel packaging.
For Higher Voltage with Extended Temperature: C1005X5R1V684K050BC or C1005X5R1V684M050BC combine 35V rating with X5R temperature coefficient and -55°C ~ 85°C operating range. These parts are available in Tape & Reel packaging.
For Cross-Manufacturer Alternative: CL05A474KA5NNNC (Samsung Electro-Mechanics) is an Active product with 0.47 µF capacitance, ±10% tolerance, 25V rating, and X5R temperature coefficient. This part is suitable only for applications where 0.47 µF capacitance is acceptable within circuit design tolerances.
All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating.
Frequently Asked Questions (FAQ)
Q: Can C1005JB1E684K050BC replace C1005JB1E684M050BC directly? A: Yes. Both parts have identical 0.68 µF capacitance, 25V rating, and JB temperature coefficient. C1005JB1E684K050BC offers tighter ±10% tolerance compared to ±20%, making it a direct upgrade. The primary difference is packaging format (Tape & Reel vs. Cut Tape).
Q: What is the difference between JB and X5R temperature coefficients? A: JB temperature coefficient specifies operating range of -25°C ~ 85°C. X5R temperature coefficient specifies operating range of -55°C ~ 85°C, providing extended low-temperature performance. X5R parts are suitable for applications requiring wider temperature operation.
Q: Can I use C1005JB1V684M050BC (35V) instead of C1005JB1E684M050BC (25V)? A: Yes. The 35V rated part is electrically compatible and provides additional voltage margin. All other parameters (0.68 µF capacitance, ±20% tolerance, JB temperature coefficient, 0402 package) remain identical. This substitution is suitable for designs where higher voltage rating does not create space or cost constraints.
Q: Is CL05A474KA5NNNC a suitable substitute? A: CL05A474KA5NNNC is a near-value alternative with 0.47 µF capacitance instead of 0.68 µF. This part is suitable only if circuit design tolerances permit approximately 30% lower capacitance. It offers advantages of Active product status, X5R temperature coefficient, and ±10% tolerance.
Q: What does "Last Time Buy" status mean? A: Last Time Buy indicates the part is no longer in active production. Existing inventory is available, but no future production is planned. Designs should transition to Active alternatives such as CL05A474KA5NNNC or continue with available inventory of substitute TDK parts.
Q: Are all substitute parts ROHS3 compliant? A: Yes. All parts listed maintain ROHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements.
Q: What packaging formats are available? A: Substitute parts are available in Cut Tape (CT) and Tape & Reel (TR) formats. Cut Tape is suitable for small-quantity applications, while Tape & Reel is standard for high-volume manufacturing and automated assembly.
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