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onsemi FDLL914B
- Part No.:
- FDLL914B
- Manufacturer:
- onsemi
- Category:
- Single Diodes
- Package:
- DO-213AC, MINI-MELF, SOD-80
- Datasheet:
-
FDLL914B.pdf
- Description:
- DIODE GEN PURP 100V 200MA SOD80
- Quantity:
- Payment:
- Shipping:
Inventory:12,489
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Product details
Overview
FDLL914B from onsemi is a small-signal switching diode in SOD-80 (MiniMELF) package, rated for 100 V repetitive reverse voltage, 300 mA DC forward current, and 4.0 ns reverse recovery time. It serves as a high-speed rectifier or signal clamping device in digital logic interface circuits and pulse conditioning stages.
For engineers reviewing the FDLL914B datasheet, pinout, applications, or equivalent options, key selection criteria include its 4.0 ns trr, 0.62–0.72 V VF at 5 mA, 4.0 pF junction capacitance at 0 V, and operation up to +175°C junction temperature in compact SOD-80 form factor.
Technical Context
The FDLL914B is a silicon planar epitaxial construction diode optimized for fast switching in low-power, high-frequency applications. Its design emphasizes low forward voltage drop and minimal charge storage to achieve sub-5 ns reverse recovery performance under IF = 10 mA, VR = 6.0 V test conditions.
It operates across −55°C to +175°C junction temperature range with thermal resistance of 300°C/W (junction-to-ambient), and is rated for 500 mW power dissipation. The cathode is marked by a wider black band on the SOD-80 cylindrical body, consistent with JEDEC MiniMELF orientation standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking capability without breakdown |
| trr | 4.0 ns - Enables reliable operation in >100 MHz digital switching and pulse shaping |
| VF @ 5 mA | 0.62–0.72 V - Low conduction loss in biasing and level-shifting networks |
| CT @ 0 V | 4.0 pF - Minimizes capacitive loading in RF detector and high-speed sampling paths |
| TJ Range | −55°C to +175°C - Supports under-hood automotive, industrial control, and power supply monitoring |
| IF(DC) | 300 mA - Sustains continuous current in signal routing and protection clamp circuits |
| PD | 500 mW - Defines maximum steady-state power handling in ambient-convection cooled layouts |
Pinout & Package
SOD-80 (MiniMELF) is a hermetically sealed glass cylindrical package measuring 3.05 mm × 1.53 mm, with axial leads and cathode identified by a wider black band. The device has two terminals: anode and cathode - no internal connections or multi-terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node in forward-biased operation; requires current-limiting resistor in most logic interface uses |
| Cathode | Forward current exit / reverse-blocking terminal | Marked by wider black band; ties to reference rail (e.g., ground or VCC) in clamping and protection topologies |
Key Features
| Feature | Design Value |
|---|---|
| Fast switching speed | 4.0 ns reverse recovery enables use in >100 MHz clock line steering and pulse edge sharpening |
| Low forward voltage | 0.62–0.72 V at 5 mA reduces voltage error in precision analog signal clamping |
| High-temperature operation | Junction rating up to +175°C supports deployment in engine control units and industrial motor drives |
| Miniature glass package | SOD-80 footprint offers superior thermal stability vs. plastic packages and compatibility with wave soldering |
| Low leakage | 25 nA max IR at 20 V ensures minimal standby current in battery-powered sensor front-ends |
Applications
| Digital Logic Interface Protection | High-Frequency Signal Detection |
|---|---|
Use Scenario: Protecting CMOS/TTL input pins from ESD transients and overvoltage during hot-plug events in communication modules. IC Role / Device Role / Timing Role: Fast clamping diode shunting excess voltage to rail while preserving signal integrity below 10 ns rise times. Use Value: 4.0 ns trr and 0.62 V VF ensure minimal propagation delay and low threshold clamping before IC damage occurs. | Use Scenario: Demodulating AM signals or detecting envelope peaks in RF receiver front-ends operating up to 500 MHz. IC Role / Device Role / Timing Role: Low-capacitance (4.0 pF) signal path rectifier with minimal phase distortion in detector diode position. Use Value: 4.0 pF CT and sub-1 V VF enable accurate peak capture without loading resonant tank circuits. |
| Pulse Width Modulation (PWM) Snubbing | Power Supply Voltage Monitoring |
Use Scenario: Suppressing flyback voltage spikes across MOSFETs or relays in 20–100 kHz PWM motor drivers. IC Role / Device Role / Timing Role: Fast-recovery freewheeling path limiting dv/dt-induced gate stress and EMI generation. Use Value: 4.0 ns trr prevents reverse conduction overlap during switching transitions, reducing energy loss and ringing. | Use Scenario: Monitoring regulated DC rails (e.g., 12 V, 24 V) for brown-out detection in programmable logic controllers. IC Role / Device Role / Timing Role: Precision voltage reference element in resistive divider networks feeding ADC inputs. Use Value: Stable VF temperature coefficient and <25 nA IR at 20 V ensure measurement accuracy over −40°C to +85°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar small-signal switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4148TR | DO-35 package (larger); 4.0 ns trr same; VF = 1.0 V @ 10 mA (higher than FDLL914B's 0.62–0.72 V @ 5 mA) | Less suitable for low-voltage logic interfaces due to higher VF; preferred where axial lead mounting is required | Select when legacy DO-35 footprint or through-hole assembly is mandated |
| FDLL4148 | Same SOD-80 package; identical VF spec (0.62–0.72 V @ 5 mA); trr = 4.0 ns; but rated for 100 V VRRM (same) and 150 mA IO (lower than FDLL914B's 200 mA) | Lower average current rating limits use in sustained 100+ mA clamping; otherwise functionally interchangeable in signal paths | Select when cost optimization is prioritized and average current remains <150 mA |
Compared with 1N4148TR and FDLL4148, the FDLL914B delivers superior forward voltage performance in SOD-80 form factor while supporting higher average rectified current - making it optimal for space-constrained, low-loss digital interface and RF detection designs.
Availability
FDLL914B is available at Aetrix Electronics and suitable for digital logic protection, RF signal detection, PWM snubbing, and power supply monitoring requiring stable component supply and long-term industrial availability.
Supply support for FDLL914B includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The FDLL914B belongs to onsemi's legacy small-signal diode family designed for high-speed switching in compact, thermally robust packages - targeting reliability-critical roles in automotive electronics and industrial control systems.
FAQ
What is the maximum junction temperature rating for FDLL914B?
The FDLL914B has an operating junction temperature range of −55°C to +175°C. This specification allows the FDLL914B to operate reliably in under-hood automotive environments, industrial motor drives, and high-temperature power supply monitoring circuits without derating below its full electrical performance envelope.
Does FDLL914B have a specified reverse recovery time, and how is it measured?
Yes, the FDLL914B has a typical reverse recovery time (trr) of 4.0 ns. This value is measured under standardized conditions: IF = 10 mA, VR = 6.0 V, Irr = 1.0 mA, and RL = 100 Ω. The FDLL914B achieves this performance due to its low charge storage and optimized silicon epitaxial structure, enabling use in high-frequency switching applications.
What does the "Black" marking on FDLL914B indicate?
The "Black" marking on FDLL914B refers to the color of the cathode band on the SOD-80 glass body - a visual polarity indicator per onsemi's SOD-80 marking standard. This black band identifies the cathode terminal and is wider than standard bands to aid automated optical inspection and manual orientation during placement of the FDLL914B.
How does FDLL914B compare to FDLL4148 in terms of forward voltage?
The FDLL914B and FDLL4148 share identical forward voltage specifications: 0.62–0.72 V at IF = 5.0 mA. Both devices deliver low conduction loss in signal-level clamping and biasing applications. However, the FDLL914B supports higher average rectified current (200 mA vs. 150 mA for FDLL4148), making the FDLL914B more suitable for sustained-current use cases.
Is FDLL914B suitable for surface-mount reflow soldering processes?
Yes, the FDLL914B in SOD-80 package is qualified for standard surface-mount reflow soldering profiles, including lead-free (Pb-free) processes. Its hermetically sealed glass construction withstands thermal cycling without delamination or parameter shift, and the FDLL914B's thermal resistance (RJA = 300°C/W) is validated for convection-cooled PCB layouts used in industrial and automotive assemblies.
FDLL914B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-213AC, MINI-MELF, SOD-80
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 100 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 4 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 75 V
- Capacitance @ Vr, F:
- 4pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-80
- Operating Temperature - Junction:
- -55°C ~ 175°C
FDLL914B FAQ
1.How can I place an order for FDLL914B through Aetrix?
Please submit a Request for Quotation (RFQ) for FDLL914B on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for FDLL914B reliable?
The price and inventory of FDLL914B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FDLL914B is usually 5 days.
3.What payment methods are accepted for FDLL914B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FDLL914B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FDLL914B?
FDLL914B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FDLL914B order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for FDLL914B?
For technical support, including FDLL914B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FDLL914B requirements.
6.How does Aetrix verify that FDLL914B is sourced from the original manufacturer or authorized distributors?
All FDLL914B products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that FDLL914B meets industry standards.
7.What is the process for return or replacement of FDLL914B?
All FDLL914B units undergo pre-shipment inspection (PSI). If there is an issue with FDLL914B, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The FDLL914B part is unused and in its original packaging.
Return procedure for FDLL914B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FDLL914B Tags
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