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Taiwan Semiconductor Corporation 1N914B A0G
- Part No.:
- 1N914B A0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N914B A0G.pdf
- Description:
- DIODE GEN PURP 100V 150MA DO35
- Quantity:
- Payment:
- Shipping:
Inventory:4,056
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Product details
Overview
1N914B A0G from Taiwan Semiconductor is a hermetically sealed glass fast-switching diode rated for 150 mA forward current and 100 V repetitive peak reverse voltage, with reverse recovery time under 4 ns; it serves as a high-speed signal-level switching element in DC/DC converters and SMPS flyback snubbers.
For engineers reviewing the 1N914B A0G datasheet, 1N914B A0G pinout, 1N914B A0G application, or 1N914B A0G equivalent, key selection criteria include trr ≤ 4 ns, VF ≤ 1.0 V at 100 mA, IR ≤ 5 μA at 75 V, DO-35 package compatibility, and TJ max = 150°C operation.
Technical Context
This discrete silicon switching diode uses a single-die planar construction in a DO-35 glass package with axial leads and cathode band polarity marking. Its junction capacitance is 4 pF at 1 MHz and 0 V, supporting high-frequency signal routing without parasitic loading.
The device operates across –65°C to +150°C junction temperature range and delivers 2 A non-repetitive surge current capability, enabling robust transient handling in inductive switching nodes of power converters and logic interface clamping circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Continuous) | 150 mA - supports sustained signal switching or low-power clamp duty in logic-level interfaces |
| VRRM | 100 V - enables use in 48 V system rails and 24 V industrial control inputs with margin |
| trr | < 4 ns - ensures minimal switching loss and clean edge fidelity in >10 MHz digital timing paths |
| VF @ 100 mA | 1.0 V max - limits forward conduction loss in series protection or level-shifting applications |
| IR @ 75 V | 5 μA max - guarantees low leakage in high-impedance sample-and-hold or bias networks |
| TJ max | +150°C - allows operation in enclosed power supply enclosures without derating below 125°C ambient |
Pinout & Package
DO-35 hermetically sealed glass package with axial leads; cathode indicated by black band; lead finish: pure tin, solderable per J-STD-002; weight ≈ 101.67 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to higher-potential node during conduction; requires no heatsinking below 150 mA |
| Cathode | Forward current exit / reverse blocking terminal | Marked by visible band; referenced to ground or lower-potential rail in clamp configurations |
Key Features
| Feature | Design Value |
|---|---|
| Fast switching speed | trr < 4 ns enables sub-10 ns pulse edge preservation in high-speed logic interfaces |
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift in humid industrial environments |
| High IFSM rating | 2 A surge capability protects against inductive kickback in relay drivers and solenoid controls |
| Low junction capacitance | 4 pF at 0 V supports RF bypass and clock line integrity up to 100 MHz |
Applications
| SMPS Snubber Circuit | Logic-Level Clamping |
|---|---|
Use Scenario: Absorbing voltage spikes across MOSFET drains in flyback and forward converter topologies. IC Role / Device Role / Timing Role: Fast-recovery diode in RCD snubber network, conducting only during switch-off transitions. Use Value: trr < 4 ns minimizes energy loss during recovery, improving overall converter efficiency by ~0.3–0.5%. | Use Scenario: Protecting microcontroller GPIO pins from overvoltage transients on communication lines. IC Role / Device Role / Timing Role: Bidirectional clamp diode tied between I/O line and VDD/GND rails. Use Value: Low VF (1.0 V) and IR (5 μA at 75 V) ensure minimal signal distortion and leakage-induced offset. |
| DC/DC Converter Feedback Path | Signal Demodulation |
Use Scenario: Isolating feedback signals in optocoupler-based isolated DC/DC controllers. IC Role / Device Role / Timing Role: High-speed rectifier in AC-coupled error amplifier input stage. Use Value: 4 pF junction capacitance avoids phase shift in 100 kHz–1 MHz compensation loops. | Use Scenario: Envelope detection in low-power IR remote receiver front-ends. IC Role / Device Role / Timing Role: Signal demodulator diode in passive AM detector circuit. Use Value: 150 mA IF rating supports peak current handling during burst-mode IR pulses without saturation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4148 A0G | Identical VRRM (100 V), IF (150 mA), trr (<4 ns); VF slightly higher at 10 mA test condition (≤1.0 V vs. 1N914B's 0.72 V max at 5 mA) | Same DO-35 package and thermal profile; preferred where tighter VF spec at low current is required | Select 1N4148 A0G when designing for <5 mA forward bias conditions with stricter VF tolerance |
| 1N4448 A0G | Identical absolute ratings and DO-35 package; VF spec tightened to 0.62–0.72 V at 5 mA, but same 1.0 V max at 100 mA | Optimized for precision low-current switching; identical surge and thermal performance | Choose 1N4448 A0G for analog signal routing where sub-0.75 V forward drop at microamp bias matters |
Compared with 1N4148 A0G and 1N4448 A0G, the 1N914B A0G offers identical ruggedness and speed while providing a balanced VF specification-1.0 V at 100 mA-making it optimal for general-purpose switching where moderate current drive and fast recovery are jointly prioritized.
Availability
1N914B A0G is available at Aetrix Electronics and suitable for switching mode power supplies, lighting ballasts, and on-board DC/DC converters requiring stable component supply and RoHS-compliant sourcing.
Supply support for 1N914B A0G 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, rectifiers, and signal diodes with global distribution and AEC-Q200 qualified lines.
The 1N914B A0G belongs to TSC's legacy fast-switching diode family designed for cost-sensitive, high-volume industrial and consumer power conversion applications where reliability, consistency, and JEDEC-standard packaging are essential.
FAQ
What is the maximum reverse recovery time (trr) specified for the 1N914B A0G?
The 1N914B A0G has a maximum reverse recovery time of 4 ns under test conditions of IF = 10 mA, VR = 6 V, RL = 100 Ω, and IRR = 1 mA. This value is confirmed in the Electrical Specifications table of the official Taiwan Semiconductor datasheet (Version K2301). The 4 ns trr makes the 1N914B A0G suitable for high-frequency switching applications up to several tens of MHz.
Does the 1N914B A0G have RoHS compliance certification?
Yes, the 1N914B A0G is explicitly stated as RoHS compliant in the Features section of the Taiwan Semiconductor datasheet. It meets EU Directive 2011/65/EU requirements, with lead-free terminations and no restricted substances above threshold limits. This compliance applies to all ordering variants including A0G, and is verified through TSC's material declarations and third-party testing.
What is the junction-to-ambient thermal resistance (RθJA) for the 1N914B A0G in its DO-35 package?
The junction-to-ambient thermal resistance (RθJA) for the 1N914B A0G in the DO-35 package is 240°C/W, as specified in the Thermal Performance section of the datasheet. This value assumes standard PCB mounting with no copper pour; actual thermal performance improves with added copper area or airflow. The 240°C/W rating supports continuous 150 mA operation at ambient temperatures up to +75°C without exceeding TJ max = +150°C.
How does the forward voltage (VF) of the 1N914B A0G compare at different test currents?
The 1N914B A0G specifies VF ≤ 0.72 V at IF = 5 mA and ≤ 1.0 V at IF = 100 mA (both at TJ = 25°C). This reflects typical silicon diode behavior: VF increases with current due to bulk resistance and ideality factor effects. The datasheet confirms both values are measured under pulsed conditions (PW = 0.3 ms for 100 mA, PW = 30 ms for low-current tests), ensuring minimal self-heating during measurement.
Is the 1N914B A0G pin-compatible with other DO-35 diodes like 1N4148 or 1N4448?
Yes-the 1N914B A0G shares the identical DO-35 axial-glass package, lead dimensions, and polarity marking (cathode band) with 1N4148 A0G and 1N4448 A0G. All three are physically interchangeable on PCBs designed for DO-35 footprints. However, VF and low-current leakage differ slightly; design validation is recommended if substituting in precision analog paths.
1N914B A0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 150mA
- Voltage - Forward (Vf) (Max) @ If:
- 720 mV @ 5 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:
- Through Hole
- Supplier Device Package:
- DO-35
- Operating Temperature - Junction:
- -65°C ~ 150°C
1N914B A0G FAQ
1.How can I place an order for 1N914B A0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N914B A0G 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 1N914B A0G reliable?
The price and inventory of 1N914B A0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N914B A0G is usually 5 days.
3.What payment methods are accepted for 1N914B A0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N914B A0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N914B A0G?
1N914B A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N914B A0G 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 1N914B A0G?
For technical support, including 1N914B A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N914B A0G requirements.
6.How does Aetrix verify that 1N914B A0G is sourced from the original manufacturer or authorized distributors?
All 1N914B A0G 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 1N914B A0G meets industry standards.
7.What is the process for return or replacement of 1N914B A0G?
All 1N914B A0G units undergo pre-shipment inspection (PSI). If there is an issue with 1N914B A0G, 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 1N914B A0G part is unused and in its original packaging.
Return procedure for 1N914B A0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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