Part A
9DBL411BKLFT
Renesas Electronics America Inc
- Lifecycle
- Active
- Stock
- 5482 PCS
- Package
- VFQFN-20
- Series
- Clock-Timing - Application Specific
Replacement verdict
Compatible functional replacement candidate
The 9DBL411BKLF and 9DBL411BKLFT are functionally equivalent clock buffer ICs from the same manufacturer, sharing identical electrical characteristics, package type, and pin configuration. The only distinction is the packing method, making them suitable as direct substitutes in most applications.
Function
High match
Package Type
High match
Pin Configuration
High match
Electrical Characteristics
High match
Parts at a glance
Part B
9DBL411BKLF
Renesas Electronics America Inc
- Lifecycle
- Active
- Stock
- 7100 PCS
- Package
- VFQFN-20
- Series
- Clock-Timing - Application Specific
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | 9DBL411BKLFT | 9DBL411BKLF | Why it matters |
|---|---|---|---|
| Manufacturer | Renesas Electronics | Renesas Electronics | Same manufacturer ensures consistent design, documentation, and support. |
| Function | 3.3V Differential Clock Buffer / Fanout | 3.3V Differential Clock Buffer / Fanout | Identical function confirms the parts are functionally interchangeable in the target application. |
| Package / Case | VFQFPN-32 (5x5 mm) | VFQFPN-32 (5x5 mm) | Same footprint and pinout allow drop-in replacement without PCB redesign. |
| Supply Voltage | 3.3 V | 3.3 V | Matching supply voltage ensures electrical compatibility with the existing power rail. |
| Number of Outputs | 4 differential outputs | 4 differential outputs | Equal output count preserves the clock fanout capacity of the design. |
| Output Type | Differential (HCSL-compatible) | Differential (HCSL-compatible) | Same signaling standard ensures interoperability with downstream clock receivers. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Identical temperature range supports the same environmental operating conditions. |
| Packaging / Ordering Format | Tape and Reel | Tray / Tube | Different packaging affects assembly line handling and reflow process compatibility. |
| Moisture Sensitivity Level (MSL) | MSL 1 | MSL 1 | MSL determines floor life and baking requirements before reflow soldering. |
| RoHS Compliance | RoHS Compliant | RoHS Compliant | Both meet environmental regulations, ensuring global market acceptance. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 9DBL411BKLFT | 9DBL411BKLF |
|---|---|---|
| Supplier | - | Renesas Electronics America Inc |
| Part Status | Active | Active |
| PLL | No | No |
| Main Purpose | Intel QPI, PCI Express (PCIe) | Intel QPI, PCI Express (PCIe) |
| Input | HCSL | HCSL |
| Output | LP-HCSL | LP-HCSL |
| Number of Circuits | 1 | 1 |
| Ratio - Input: Output | 1:4 | 1:4 |
| Differential - Input: Output | Yes/Yes | Yes/Yes |
| Frequency - Max | 150MHz | 150MHz |
| Voltage - Supply | 3V ~ 3.6V | 3V ~ 3.6V |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the difference between the 9DBL411BKLFT and the 9DBL411BKLF?
The primary difference is the packaging format. The 9DBL411BKLFT is supplied in tape and reel packaging, while the 9DBL411BKLF is supplied in tube packaging. Both devices are functionally identical and share the same die, electrical specifications, and package type.
Are the 9DBL411BKLFT and 9DBL411BKLF electrically and functionally identical?
Yes. Both part numbers refer to the same base device, the 9DBL411B, in the same package. The only distinction is the shipping or packaging option, so electrical performance, pinout, and functional behavior are identical.
Can the 9DBL411BKLFT and 9DBL411BKLF be used interchangeably in a design?
Yes, they can be used interchangeably in terms of electrical and functional performance because they are the same device. The choice between them depends on the assembly or procurement preference for tape and reel versus tube packaging.
What does the "T" suffix indicate on the 9DBL411BKLFT?
The "T" suffix indicates tape and reel packaging. This is a standard ordering suffix used by the manufacturer to denote the shipping format for automated pick-and-place assembly lines.
What package type do the 9DBL411BKLFT and 9DBL411BKLF use?
Both devices are offered in the same package type as indicated by the shared "KLF" code in the part number. The specific package designation should be confirmed from the manufacturer datasheet for the 9DBL411B.
Are the 9DBL411BKLFT and 9DBL411BKLF RoHS compliant?
RoHS compliance depends on the specific ordering part number and the manufacturer's current declaration. Designers should verify the RoHS status for each orderable part number directly from the manufacturer or an authorized distributor.
Which part number should be specified for automated assembly?
For automated pick-and-place assembly, the 9DBL411BKLFT tape and reel option is typically preferred. The 9DBL411BKLF tube option is generally used for manual handling or low-volume prototyping.