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CTK SMAF Fast Recovery Diodes for Space-Saving Designs - Package-Specific Fast Recovery Diode Supplier
Products Description
The SMAF Fast Recovery Diodes for Space-Saving Designs series serves customers who need freewheel current paths in applications such as slim adapters, thin LED drivers, compact metering boards. The SMAF package is presented as a distinct layout decision rather than a simple package-name substitution. Typical users include teams reducing product height while keeping an SMT power diode footprint. Confirm exact electrical limits in the datasheet before final approval.
| Part Number | I(AV) | VRRM | Trr | Package | MPQ |
| RS1AF | 1 | 50 | 150 | SMAF | 3000 |
| RS1BF | 1 | 100 | 150 | SMAF | 3000 |
| RS1DF | 1 | 200 | 150 | SMAF | 3000 |
| RS1GF | 1 | 400 | 150 | SMAF | 3000 |
| RS1JF | 1 | 600 | 250 | SMAF | 3000 |
| RS1KF | 1 | 800 | 500 | SMAF | 3000 |
| RS1MF | 1 | 1000 | 500 | SMAF | 3000 |
| RS2AF | 2 | 50 | 150 | SMAF | 3000 |
| RS2BF | 2 | 100 | 150 | SMAF | 3000 |
| RS2DF | 2 | 200 | 150 | SMAF | 3000 |
| RS2GF | 2 | 400 | 150 | SMAF | 3000 |
| RS2JF | 2 | 600 | 250 | SMAF | 3000 |
| RS2KF | 2 | 800 | 500 | SMAF | 3000 |
| RS2MF | 2 | 1000 | 500 | SMAF | 3000 |
| RS3AF | 3 | 50 | 150 | SMAF | 3000 |
| RS3BF | 3 | 100 | 150 | SMAF | 3000 |
| RS3DF | 3 | 200 | 150 | SMAF | 3000 |
| RS3GF | 3 | 400 | 150 | SMAF | 3000 |
| RS3JF | 3 | 600 | 250 | SMAF | 3000 |
| RS3KF | 3 | 800 | 500 | SMAF | 3000 |
| RS3MF | 3 | 1000 | 500 | SMAF | 3000 |
| RS1A | 1 | 50 | 150 | SMA | 2000 |
| RS1B | 1 | 100 | 150 | SMA | 2000 |
| RS1D | 1 | 200 | 150 | SMA | 2000 |
| RS1G | 1 | 400 | 150 | SMA | 2000 |
| RS1J | 1 | 600 | 250 | SMA | 2000 |
| RS1K | 1 | 800 | 500 | SMA | 2000 |
| RS1M | 1 | 1000 | 500 | SMA | 2000 |
| RS2A | 2 | 50 | 150 | SMA | 2000 |
| RS2B | 2 | 100 | 150 | SMA | 2000 |
| RS2D | 2 | 200 | 150 | SMA | 2000 |
| RS2G | 2 | 400 | 150 | SMA | 2000 |
| RS2J | 2 | 600 | 250 | SMA | 2000 |
| RS2K | 2 | 800 | 500 | SMA | 2000 |
| RS2M | 2 | 1000 | 500 | SMA | 2000 |
| ES1AF | 1 | 50 | 35 | SMAF | 3000 |
| ES1BF | 1 | 100 | 35 | SMAF | 3000 |
| ES1DF | 1 | 200 | 35 | SMAF | 3000 |
| ES1GF | 1 | 400 | 35 | SMAF | 3000 |
| ES1JF | 1 | 600 | 35 | SMAF | 3000 |
| ES2AF | 2 | 50 | 35 | SMAF | 3000 |
| ES2BF | 2 | 100 | 35 | SMAF | 3000 |
| ES2DF | 2 | 200 | 35 | SMAF | 3000 |
| ES2GF | 2 | 400 | 35 | SMAF | 3000 |
| ES2JF | 2 | 600 | 35 | SMAF | 3000 |
| ES3AF | 3 | 50 | 35 | SMAF | 3000 |
| ES3BF | 3 | 100 | 35 | SMAF | 3000 |
| ES3DF | 3 | 200 | 35 | SMAF | 3000 |
| ES3GF | 3 | 400 | 35 | SMAF | 3000 |
| ES3JF | 3 | 600 | 35 | SMAF | 3000 |
| ES1A | 1 | 50 | 35 | SMA | 2000 |
| ES1B | 1 | 100 | 35 | SMA | 2000 |
| ES1D | 1 | 200 | 35 | SMA | 2000 |
| ES1G | 1 | 400 | 35 | SMA | 2000 |
| ES1J | 1 | 600 | 35 | SMA | 2000 |
| ES2A | 2 | 50 | 35 | SMA | 2000 |
| ES2B | 2 | 100 | 35 | SMA | 2000 |
| ES2D | 2 | 200 | 35 | SMA | 2000 |
| ES2G | 2 | 400 | 35 | SMA | 2000 |
| ES2J | 2 | 600 | 35 | SMA | 2000 |
| US1AF | 1 | 50 | 50 | SMAF | 3000 |
| US1BF | 1 | 100 | 50 | SMAF | 3000 |
| US1DF | 1 | 200 | 50 | SMAF | 3000 |
| US1GF | 1 | 400 | 50 | SMAF | 3000 |
| US1JF | 1 | 600 | 75 | SMAF | 3000 |
| US1KF | 1 | 800 | 75 | SMAF | 3000 |
| US1MF | 1 | 1000 | 75 | SMAF | 3000 |
| US2AF | 2 | 50 | 50 | SMAF | 3000 |
| US2BF | 2 | 100 | 50 | SMAF | 3000 |
| US2DF | 2 | 200 | 50 | SMAF | 3000 |
| US2GF | 2 | 400 | 50 | SMAF | 3000 |
| US2JF | 2 | 600 | 75 | SMAF | 3000 |
| US2KF | 2 | 800 | 75 | SMAF | 3000 |
| US2MF | 2 | 1000 | 75 | SMAF | 3000 |
| US3AF | 3 | 50 | 50 | SMAF | 3000 |
| US3BF | 3 | 100 | 50 | SMAF | 3000 |
| US3DF | 3 | 200 | 50 | SMAF | 3000 |
| US3GF | 3 | 400 | 50 | SMAF | 3000 |
| US3JF | 3 | 600 | 75 | SMAF | 3000 |
| US3KF | 3 | 800 | 75 | SMAF | 3000 |
| US3MF | 3 | 1000 | 75 | SMAF | 3000 |
| US1A | 1 | 50 | 50 | SMA | 2000 |
| US1B | 1 | 100 | 50 | SMA | 2000 |
| US1D | 1 | 200 | 50 | SMA | 2000 |
| US1G | 1 | 400 | 50 | SMA | 2000 |
| US1J | 1 | 600 | 75 | SMA | 2000 |
| US1K | 1 | 800 | 75 | SMA | 2000 |
| US1M | 1 | 1000 | 75 | SMA | 2000 |
| US2A | 2 | 50 | 50 | SMA | 2000 |
| US2B | 2 | 100 | 50 | SMA | 2000 |
| US2D | 2 | 200 | 50 | SMA | 2000 |
| US2G | 2 | 400 | 50 | SMA | 2000 |
| US2J | 2 | 600 | 75 | SMA | 2000 |
| US2K | 2 | 800 | 75 | SMA | 2000 |
| US2M | 2 | 1000 | 75 | SMA | 2000 |
Features / Advantages
- Package Role: SMAF is used here for thin flat-lead version for low-profile SMT power layouts, giving this page a different selection reason from neighboring packages.
- Circuit Fit: Supports reverse recovery behavior in slim adapters, thin LED drivers, and related assemblies where the package outline matters.
- Selection Check: Review datasheet values for the required voltage, current, leakage, capacitance, recovery, or thermal limits before release.
- Assembly Context: The package choice is relevant to placement density, solder joint access, inspection method, and production handling.
- Procurement Value: CTK can support sample verification, stable marking, and wholesale packaging for repeat production.
- Quality Control: Manufacturing checks focus on electrical consistency, package appearance, solderability, and compliance documentation.
Reliability and Certification
CTK reviews SMAF Fast Recovery Diodes for Space-Saving Designs as a distinct SMAF product line. Inspection covers package marking, solderability, visual quality, and final electrical screening. For Fast Recovery Diode selection, customers should compare reverse recovery behavior, switching loss reduction, package footprint, and thermal or signal constraints against the datasheet and application board. This keeps engineering review grounded in actual use rather than generic product wording.
Applications
- Slim adapters: The SMAF outline is useful when reverse recovery behavior must fit the available board area.
- Thin LED drivers: Designers can place the device according to package clearance, routing, and thermal needs.
- Compact metering boards: Suitable for products where switching loss reduction and repeatable assembly are both important.
- Portable chargers: Helps purchasing teams keep a consistent CTK source while matching the physical footprint.
- Space-limited power boards: A practical option when the circuit needs freewheel current paths without changing the broader design architecture.

FAQ
Q: What makes SMAF Fast Recovery Diodes for Space-Saving Designs different from nearby CTK package pages?
A: The main difference is the SMAF package role: thin flat-lead version for low-profile SMT power layouts. That affects board space, assembly handling, and the type of products where the device is most convenient.
Q: Which applications usually fit this series?
A: It is commonly reviewed for slim adapters, thin LED drivers, compact metering boards, portable chargers, especially when engineers need reverse recovery behavior with a package that matches the layout.
Q: What should be checked before ordering samples?
A: Check the datasheet for the electrical limits required by your design, then confirm pad layout, package height, thermal path, and production packaging.
Q: Can CTK help compare this option with another package?
Q: Can CTK help compare this option with another package?
About CTK
CTK supplies discrete semiconductors with attention to package-level selection, not only product-family keywords. The SMAF Fast Recovery Diodes for Space-Saving Designs page is now positioned around thin flat-lead version for low-profile SMT power layouts, giving engineers and buyers clearer reasons to choose this SMAF option within the Fast Recovery Diode portfolio.
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