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Diodes Incorporated 1N4001G-T
- Part No.:
- 1N4001G-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4001G-T.pdf
- Description:
- DIODE GEN PURP 50V 1A DO41
- Quantity:
- Payment:
- Shipping:
Inventory:14,891
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Product details
Overview
1N4001G-T from Diodes Incorporated is a glass passivated silicon rectifier diode in DO-41 package, rated for 50 V peak repetitive reverse voltage (VRRM), 1.0 A average forward current (IO), and 30 A non-repetitive surge current (IFSM), used in AC/DC power supply input stages, adapter front-ends, and low-frequency rectification.
For engineers reviewing the 1N4001G-T datasheet, 1N4001G-T pinout, 1N4001G-T application, or 1N4001G-T equivalent, key selection criteria include VRRM margin for line-voltage transients, thermal resistance (RθJA = 100 °C/W) under PCB trace constraints, forward voltage drop (VFM = 1.0 V @ 1.0 A) impact on efficiency, and DO-41 mechanical compatibility with legacy through-hole layouts.
Technical Context
This device operates as a single-phase, half-wave rectifier under 60 Hz resistive or inductive loads. Its glass passivation ensures stable junction performance across -65°C to +175°C operating range and enables reliable operation without silicone gel encapsulation.
It exhibits typical reverse recovery time of 2.0 µs (measured at IF = 0.5 A, IR = –1 A, Irr = 0.25 A) and total capacitance of 8.0 pF at 1 MHz and 4.0 V reverse bias - characteristics suitable for line-frequency but not high-speed switching applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum peak reverse voltage before breakdown; sets minimum insulation margin for 36 V RMS AC inputs. |
| IO @ TA = 75°C | 1.0 A - Continuous DC output current capability when ambient temperature is 75°C and leads are held at ambient 9.5 mm from case. |
| IFSM (8.3 ms) | 30 A - Surge withstand for one half-cycle of 60 Hz line fault; supports basic inrush protection in unregulated supplies. |
| VFM @ IF = 1.0 A | 1.0 V - Forward conduction loss at rated current; contributes ~1.0 W dissipation per diode in full-wave bridge at 1 A load. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance; requires ≥ 1 cm² copper pour for safe 1 A operation at 75°C ambient. |
| trr | 2.0 µs - Reverse recovery time; limits usable frequency to ≤ 10 kHz; unsuitable for SMPS output rectification. |
| CT @ 1 MHz | 8.0 pF - Junction capacitance at 4 V reverse bias; negligible effect on 50/60 Hz filtering but impacts EMI in high-dv/dt environments. |
Pinout & Package
Package: DO-41 plastic case, UL 94V-0 rated, molded thermoplastic body with axial leads; cathode identified by band; weight ≈ 0.30 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC source or transformer secondary; must withstand peak inverse voltage during reverse bias. |
| Cathode | Forward current exit point | Marked with band; connects to positive rail or filter capacitor; carries full load current and surge energy. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Eliminates need for conformal coating; provides stable leakage current (IRM ≤ 5 µA @ 25°C) and long-term humidity resistance. |
| Lead-free, RoHS-compliant finish | Tin-plated leads meet MIL-STD-202 Method 208 solderability; compatible with lead-free reflow and wave processes. |
| 30 A surge rating | Withstands single half-sine surge up to 30 A - sufficient for cold-start inrush in 12 V/1 A linear supplies. |
| DO-41 mechanical standardization | Enables direct replacement in legacy designs using 2.0–2.72 mm lead diameter and 4.06–5.21 mm body width. |
Applications
| AC/DC Wall Adapter Input Stage | Industrial Control Power Supply |
|---|---|
Use Scenario: Rectifying 120 VAC or 230 VAC mains input in low-cost offline adapters feeding linear regulators. IC Role / Device Role / Timing Role: Primary-side unidirectional current valve converting AC to pulsating DC prior to bulk capacitance. Use Value: 50 V VRRM provides 2× safety margin over 36 V peak of 25 V RMS transformer secondaries; 1.0 V VFM keeps conduction loss below 1 W at full load. | Use Scenario: Providing auxiliary 5 V or 12 V bias rails in PLC I/O modules powered from 24 VAC control transformers. IC Role / Device Role / Timing Role: Half-wave rectifier in low-power auxiliary supply; paired with Zener or LDO for clean logic rail generation. Use Value: DO-41 package fits dense PCB layouts; 100 °C/W RθJA allows operation without heatsink at ≤ 500 mA continuous load in 60°C enclosure. |
| LED Driver Bridge Input | Relay Coil Suppression |
Use Scenario: One leg of a four-diode bridge rectifier powering constant-current LED drivers in streetlight or signage applications. IC Role / Device Role / Timing Role: Conducting alternate half-cycles in full-wave configuration; shares current with three identical diodes. Use Value: Matched VFM (1.0 V) across batch ensures balanced current sharing; 30 A IFSM handles lamp hot-restrike surges. | Use Scenario: Freewheeling path across 24 VDC relay coils in HVAC control panels to suppress inductive kickback. IC Role / Device Role / Timing Role: Clamping transient voltage spikes during coil de-energization; conducts only during turn-off edge. Use Value: 50 V VRRM exceeds 24 V × 2.5 safety factor; 2.0 µs trr ensures fast clamping without oscillation in 100 ms coil time constants. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4001RLG (ON Semiconductor) | Identical VRRM (50 V), IO (1.0 A), and DO-41 package; slightly higher VFM (1.1 V @ 1.0 A). | No functional difference in line-frequency rectification; same thermal derating curve and surge rating. | Select when ON Semi sourcing is preferred; verify VFM tolerance in high-efficiency designs. |
| STTH1R06 (STMicroelectronics) | Higher VRRM (600 V), faster trr (≈ 1.5 µs), but higher VFM (1.15 V); TO-220AC package, not DO-41. | Not pin-compatible; requires PCB redesign; suited for higher-voltage or faster-recovery needs. | Choose only if upgrading to 600 V systems or requiring sub-microsecond recovery; not a drop-in replacement. |
Compared with 1N4001RLG, the 1N4001G-T offers marginally lower forward loss and identical thermal behavior; versus STTH1R06, it trades off voltage rating and speed for DO-41 footprint compatibility and cost in legacy 50 V designs.
Availability
1N4001G-T is available at Aetrix Electronics and suitable for AC/DC power supplies, industrial control auxiliary rails, LED driver input stages, and relay suppression circuits requiring stable component supply with long lifecycle support.
Supply support for 1N4001G-T 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the US.
The 1N400xG series belongs to Diodes' general-purpose rectifier product line, engineered for cost-sensitive, high-volume line-frequency power conversion where reliability, standardization, and RoHS compliance are primary requirements.
FAQ
What is the maximum operating temperature for 1N4001G-T?
The 1N4001G-T has an operating junction temperature range of –65°C to +175°C. Its safe continuous operation depends on thermal management: at 75°C ambient, it delivers full 1.0 A average current; derating begins above that point per Figure 1 in the datasheet, reaching zero current at approximately 175°C ambient with no heatsinking.
Can 1N4001G-T be used in a full-wave bridge configuration?
Yes - four 1N4001G-T diodes can form a standard full-wave bridge rectifier. Each diode blocks up to 50 V peak reverse voltage, making the bridge suitable for input voltages ≤ 35 V RMS (e.g., 25 V transformer secondaries). Ensure all four devices share matching VFM and thermal mounting to avoid current imbalance.
Is 1N4001G-T suitable for switch-mode power supply output rectification?
No - its 2.0 µs reverse recovery time and relatively high junction capacitance (8.0 pF) cause excessive switching losses and noise above ~10 kHz. It is designed for 50/60 Hz line-frequency applications; use ultrafast or Schottky diodes (e.g., MUR120, SS14) for SMPS outputs.
Does 1N4001G-T have lead-free and RoHS-compliant construction?
Yes - the "G" suffix and "-T" packaging denote lead-free, RoHS-compliant construction per EU Directive 2002/95/EC. The terminals feature tin plating, solderable per MIL-STD-202 Method 208, and the molded plastic case meets UL 94V-0 flammability rating.
1N4001G-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 1 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 2 µs
- Current - Reverse Leakage @ Vr:
- 5 µA @ 50 V
- Capacitance @ Vr, F:
- 8pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-41
- Operating Temperature - Junction:
- -65°C ~ 175°C
1N4001G-T FAQ
1.How can I place an order for 1N4001G-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4001G-T 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 1N4001G-T reliable?
The price and inventory of 1N4001G-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4001G-T is usually 5 days.
3.What payment methods are accepted for 1N4001G-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4001G-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4001G-T?
1N4001G-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4001G-T 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 1N4001G-T?
For technical support, including 1N4001G-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4001G-T requirements.
6.How does Aetrix verify that 1N4001G-T is sourced from the original manufacturer or authorized distributors?
All 1N4001G-T 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 1N4001G-T meets industry standards.
7.What is the process for return or replacement of 1N4001G-T?
All 1N4001G-T units undergo pre-shipment inspection (PSI). If there is an issue with 1N4001G-T, 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 1N4001G-T part is unused and in its original packaging.
Return procedure for 1N4001G-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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