1N4148TA
onsemi 1N4148TA (diode - small-signal switching) is mainly used for power rectification, surge clamping, and overvoltage/overcurrent protection. Genuine stock; electrical parameters and package dimensions per the official datasheet. Contact us for pricing and stock availability.
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DO-41 · Generic package illustration
Based on the catalogue package field; not verified for this part. Check manufacturer documentation for dimensions, polarity and pinout.View part documentation ↓- Package
- DO-35
Product overview
onsemi 1N4148TA (diode - small-signal switching) is mainly used for power rectification, surge clamping, and overvoltage/overcurrent protection. Genuine stock; electrical parameters and package dimensions per the official datasheet. Contact us for pricing and stock availability.
- Manufacturer
- FSC
- Part number
- 1N4148TA
- Category
- Small-Signal Switching Diodes
- Package
- DO-35
- Condition
- New & Original
- Compliance
- Non-Compliant
- Lifecycle
- Confirm with manufacturer
- Lead time / MOQ
- Confirm with quotation
Technical parameters
27 parametersConstruction
- IR Reverse Leakage
- 0.025
- CT Total Capacitance 91
- 6/916A/916B/4448
- trr Reverse Recovery Time
- 4.0
- Power Dissipation
- 500 mW
- 916B IF = 5.0 mA 0.63
- 0.73 V
- 914 / 916 / 4148 IF = 10 mA
- 1.0 V
- 914A / 916A IF = 20 mA
- 1.0 V
- 916B IF = 20 mA
- 1.0 V
- 914B / 4448 IF = 100 mA
- 1.0 V
- IR Reverse Leakage VR = 20
- 0.025 mA
- VR = 20 V, TA = 150°C
- 50 mA
- VR = 75
- 5.0 mA
- CT Total Capacitance 916/916A/916B/4448 VR = 0, f = 1.0 MHz
- 2.0 pF
- 914/914A/914B/4148 VR = 0, f = 1.0 MHz
- 4.0 pF
- trr Reverse Recovery Time IF = 10 mA, VR = 6.0 V (600 mA)
- 4.0 ns
- IR = 5.0 mA
- 75 V
- 916B IF = 5.0 mA 0
- 0.73 V
Performance
- Maximum Repetitive Reverse Voltage
- 100 V
- Average Rectified Forward Current
- 200 mA
- DC Forward Current
- 300 mA
- Recurrent Peak Forward Current If
- 400 mA
- VR Breakdown Voltage
- 100
- VF Forward Voltage 91
- 4B / 4448
- Thermal Resistance, Junction−to−Ambient RqJA
- 300 °C
- VF Forward Voltage 914B / 4448 IF = 5.0 mA 0.62
- 0.72 V
- VR Breakdown Voltage IR = 100 mA
- 100 V
- VF Forward Voltage 914B / 4448 IF = 5.0 mA 0
- 0.72 V
Specifications & documentation
Use the official manufacturer documentation to verify electrical characteristics, package dimensions and operating limits before design approval.
Frequently asked questions
Common pre-quotation questions and selection notes to help you verify key parameters and sourcing before requesting a quote.
How do I verify the part is genuine / avoid counterfeit?
Buy only from authorized or franchised channels. On receipt, check: (1) laser-etched markings that solvent will not remove; (2) batch / lot code consistent between label and device; (3) original reel or tube packaging; (4) request traceability documents (CoC, date code). For critical parts, third-party X-ray / decapsulation testing is recommended.
How do I read the markings / date code on a chip?
Most active ICs use a 4-digit date code YYWW (year + week, e.g. 2345 = 2023 week 45). The top mark is manufacturer logo + base part number + lot code. For SMD code lookup, search by "marking code + package" on AllDataSheet / Octopart / LCSC.
What does the package code mean (TO-220, SOT-23, QFP…)?
Package codes describe the physical form factor and pin layout — critical when sourcing, because electrically equivalent parts in different packages will not fit the PCB. Common: TO-220 (3-terminal power), SOT-23 (3-pin small signal), DIP / SOIC (through-hole / SMD ICs), QFP / QFN (MCUs, processors).
What if my original model is discontinued (EOL / NRND)?
Three options: (1) the manufacturer’s recommended replacement; (2) franchised distributor legacy stock; (3) a functionally compatible cross-brand part — provided pinout and key parameters match. Always evaluate on a real board before mass swap.
What is the minimum order quantity (MOQ) and lead time?
We support both sample and volume orders. Minimum order quantity, stock availability and lead time are confirmed per inquiry — tell us your model and quantity and we will quote. Sample quantities for design validation are supported.
Can I get the datasheet and samples?
The full datasheet is linked on this page. For parts without a direct datasheet, we can locate the manufacturer document on request. Sample requests are supported — contact us with your model and quantity.
Request confirmation of current stock, date code, packaging, price and delivery terms. Product information does not constitute a binding offer; final specifications are confirmed with your quotation.