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SS14F
MDD
DIODE SCHOTTKY 40V 1A SMAF
76243 Pcs New Original In Stock
Diode 40 V 1A Surface Mount SMAF
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5.0 / 5.0
- (447 Ratings)
SS14F
Product Overview
12958855
DiGi Electronics Part Number
SS14F-DGManufacturer
MDD
SS14F
Description
DIODE SCHOTTKY 40V 1A SMAFInventory
76243 Pcs New Original In Stock
Diode 40 V 1A Surface Mount SMAF
Quantity
Minimum 1
Minimum 1
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SS14F Technical Specifications
Category
Diodes, Rectifiers, Single Diodes
Packaging
Tape & Reel (TR)
Series
SMAF
Product Status
Active
Technology
Schottky
Voltage - DC Reverse (Vr) (Max)
40 V
Current - Average Rectified (Io)
1A
Voltage - Forward (Vf) (Max) @ If
550 mV @ 1 A
Speed
Fast Recovery =< 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr
500 µA @ 40 V
Capacitance @ Vr, F
110pF @ 4V, 1MHz
Mounting Type
Surface Mount
Package / Case
DO-221AC, SMA Flat Leads
Supplier Device Package
SMAF
Operating Temperature - Junction
-55°C ~ 125°C
Datasheet & Documents
Datasheets
Download SS14F Product Specification (PDF)
HTML Datasheet
SS14F-DG
Environmental & Export Classification
RoHS Status
RoHS Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
3372-SS14FTR
Standard Package
12,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
грудня 02, 2025
구매 후 지속적인 관심과 업데이트 소식을 받아볼 수 있어서 안정감이 느껴졌어요.
грудня 02, 2025
客服人員非常友善且專業，回答我的問題非常迅速，體驗非常愉快！
грудня 02, 2025
Der Versandprozess ist hervorragend organisiert; meine Ware kam in perfektem Zustand und pünktlich an.
грудня 02, 2025
The customer support team at DiGi Electronics is exceptionally helpful and responsive, making my shopping experience smooth.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the SS14F Schottky diode in a high-temperature power supply application near its maximum junction temperature?
When integrating the SS14F in high-temperature environments, particularly above 100°C, engineers must account for increased reverse leakage current, which can rise significantly near the 125°C junction limit. This leakage may lead to thermal runaway in parallel configurations or affect efficiency in battery-powered systems. To mitigate risk, ensure adequate PCB thermal dissipation using copper pours and minimize trace resistance. Additionally, derate the forward current—consider limiting average current to 0.7A instead of 1A at elevated temperatures. Monitoring actual operating temperature with thermal simulation or prototyping helps validate long-term reliability of the SS14F in thermally constrained designs.
How does the SS14F compare to the SB140 and SS16 in terms of forward voltage drop and leakage trade-offs for low-power DC-DC converter applications?
The SS14F offers a lower forward voltage drop (550 mV @ 1A) compared to the SB140 (typically 600–700 mV), improving efficiency in low-voltage DC-DC converters. However, the SS14F’s 500 µA reverse leakage at 40V is higher than the SB140’s ~200 µA, which can be critical in standby or battery-saver modes. Against the SS16 (60V rating), the SS14F has slightly better Vf performance but reduced headroom for voltage transients. For 12V–24V systems where leakage is not critical, the SS14F provides a good balance; for higher ambient temperatures or stricter leakage requirements, consider the SB140 despite its slightly higher conduction loss.
Can the SS14F be used as a drop-in replacement for the B1100 in surface-mount power rectification circuits, and what layout considerations should be addressed?
The SS14F can serve as a partial replacement for the B1100 in 40V-range applications, but caution is required. Both are SMAF-packaged 1A Schottky diodes, but the B1100 typically has softer reverse recovery characteristics and lower capacitance (75pF vs. 110pF for the SS14F). The higher capacitance of the SS14F may increase EMI in high-frequency switching circuits (>500kHz). Ensure the PCB layout includes minimized loop area, use local filtering if needed, and verify performance under fast-switching conditions. Also confirm that the 500 µA leakage at 40V is acceptable in your standby current budget before replacing B1100 with SS14F.
What are the reliability implications of operating the SS14F at its maximum 40V reverse voltage in an automotive environment with load dump transients?
Operating the SS14F at or near its 40V DC reverse voltage maximum in automotive applications risks failure during load dump events, which can induce spikes exceeding 40V. The SS14F has no built-in transient protection and may experience breakdown or accelerated degradation under such conditions. For automotive 12V systems, where load dump can reach 45–60V, we recommend using a diode with higher Vr (e.g., SS16, 60V) or implementing a transient voltage suppressor (TVS). Always design with at least 20% voltage margin; thus, the SS14F should be limited to 32V sustained operation in dynamic automotive environments to ensure robustness and lifetime reliability.
How does the 110pF capacitance of the SS14F affect high-frequency rectifier performance in RF signal detection or sampling circuits?
The SS14F’s 110pF capacitance at 4V can limit high-frequency performance in RF detection or fast sampling circuits, acting as a low-pass filter and attenuating signals above 10–20MHz depending on source impedance. While suitable for power rectification up to tens of kHz, this parasitic capacitance makes the SS14F less ideal for RF envelope detection compared to low-capacitance Schottkys like HSMS-286x (typically 0.3–0.5pF). If using the SS14F in such applications, buffer the signal or limit use to sub-5MHz frequencies. For precision RF, avoid the SS14F and select purpose-built low-C diodes, even if they have higher Vf.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
SS14F CAD Models
MDD SS14F PCB symbols & footprints
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