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Vishay General Semiconductor - Diodes Division 1N3612GPHE3/73
- Part No.:
- 1N3612GPHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N3612GPHE3/73.pdf
- Description:
- DIODE GEN PURP 400V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,103
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Product details
Overview
1N3612GPHE3/73 from Vishay General Semiconductor is a glass-passivated junction plastic rectifier diode rated for 400 V repetitive peak reverse voltage, 1.0 A average forward current, and 30 A non-repetitive surge current. It features low forward voltage (1.0 V at 1.0 A), ultra-low leakage (1.0 μA at 25 °C), and fast reverse recovery (2.0 μs), making it suitable for power supply input rectification in industrial AC-DC converters.
For engineers reviewing the 1N3612GPHE3/73 datasheet, 1N3612GPHE3/73 pinout, 1N3612GPHE3/73 application, or 1N3612GPHE3/73 equivalent, key selection criteria include VRRM = 400 V, IF(AV) = 1.0 A, trr = 2.0 μs, VF = 1.0 V, and DO-41 package compatibility with through-hole PCB layouts requiring thermal reliability up to 175 °C junction temperature.
Technical Context
This device belongs to the SUPERECTIFIER® family of high-reliability general-purpose rectifiers. Its cavity-free glass-passivated junction ensures stable performance under thermal cycling and humidity stress, while the DO-41 molded epoxy package meets UL 94 V-0 flammability rating.
The 1N3612GPHE3/73 operates as a single anode-cathode silicon PN junction rectifier with no internal integration. Its 2.0 μs reverse recovery time and 8.0 pF junction capacitance support moderate-frequency switching in line-frequency and auxiliary power applications, not high-frequency SMPS primary-side use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - maximum repetitive reverse blocking voltage; defines safe AC input voltage derating (e.g., ≤280 VRMS) |
| IF(AV) | 1.0 A at 75 °C ambient with 0.375" lead length - continuous DC output capability in linear or transformer-fed supplies |
| IFSM | 30 A for 8.3 ms half-sine - withstands inrush surges during cold-start of capacitive-input rectifiers |
| VF | 1.0 V at 1.0 A - reduces conduction loss and heatsink requirements vs. higher-VF alternatives |
| trr | 2.0 μs - enables reliable operation in 50/60 Hz and low-kHz freewheeling or clamp circuits |
| TJ max. | 175 °C - supports extended operation in enclosed industrial enclosures without forced cooling |
| RθJA | 55 °C/W - thermal resistance from junction to ambient on standard PCB; informs heatsinking needs |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, molded epoxy over glass body. Matte tin-plated leads, RoHS-compliant (E3 suffix), cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward current entry point | Connected to AC source or transformer secondary winding side with lower potential during conduction |
| Cathode (banded end) | Forward current exit point | Connected to positive rail or load return; polarity marking critical for correct rectifier orientation |
Key Features
| Feature | Design Value |
|---|---|
| Superectifier® structure | Enhanced junction passivation improves long-term reliability in humid or thermally cycled environments |
| Cavity-free glass passivation | Eliminates micro-voids at Si/glass interface, reducing risk of moisture ingress and parametric drift |
| Low IR = 1.0 μA at 25 °C | Minimizes standby power loss in high-impedance bias networks and precision reference circuits |
| Solder dip rated 275 °C / 10 s | Supports wave soldering without junction degradation or bond wire failure |
| JESD 201 Class 1A whisker resistance | Ensures long-term mechanical integrity of matte tin leads in high-reliability industrial deployments |
Applications
| AC-DC Power Supply Input Rectification | Freewheeling Diode in Relay/Contactor Drivers |
|---|---|
Use Scenario: Full-wave bridge rectification of 115/230 VAC mains in industrial power supplies with capacitive input filtering. IC Role / Device Role / Timing Role: Discrete rectifier diode conducting during positive half-cycles to deliver unidirectional current to bulk capacitor. Use Value: 400 V VRRM provides 2× safety margin over 230 VAC RMS; 30 A IFSM handles cold-start inrush into large electrolytic banks. | Use Scenario: Suppressing inductive kickback across 24 VDC relay coils in PLC I/O modules. IC Role / Device Role / Timing Role: Freewheeling path for stored magnetic energy when transistor switch turns off. Use Value: 2.0 μs trr ensures rapid turn-on after coil de-energization; 1.0 V VF limits clamping voltage and dissipation during flyback event. |
| DC-DC Converter Output Rectification | Reverse Polarity Protection in 12–48 V Systems |
Use Scenario: Secondary-side rectification in isolated 24 V output flyback converters powering control logic. IC Role / Device Role / Timing Role: Synchronous or asynchronous rectifier converting transformer AC output to regulated DC. Use Value: Low VF reduces conduction loss at 1.0 A load; DO-41 package allows manual rework and high-voltage creepage spacing. | Use Scenario: Series-connected protection diode in battery-powered instrumentation with external DC input jacks. IC Role / Device Role / Timing Role: Blocking reverse-connected power sources to prevent damage to downstream regulators and sensors. Use Value: 400 V VRRM accommodates transient spikes on 48 V bus; 1.0 μA IR prevents significant standby drain in always-on devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar general-purpose rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4004GP-E3/54 | VRRM = 400 V, same IF(AV) = 1.0 A, but trr ≈ 30 μs (slower), VF ≈ 1.1 V (higher) | Less suitable for fast freewheeling; acceptable for pure line-frequency rectification only | Select when cost sensitivity outweighs speed requirement and thermal margin is ample |
| 1N5404G | VRRM = 400 V, IF(AV) = 3.0 A, DO-201AD package (larger), VF ≈ 1.0 V, trr ≈ 2.0 μs | Higher current capacity requires larger PCB footprint; better for >1.5 A loads | Select when future current scaling or improved thermal margin is needed without changing circuit topology |
Compared with 1N4004GP-E3/54, the 1N3612GPHE3/73 delivers faster switching and lower conduction loss; compared with 1N5404G, it offers identical electrical performance in a smaller DO-41 footprint ideal for space-constrained legacy designs.
Availability
1N3612GPHE3/73 is available at Aetrix Electronics and suitable for industrial AC-DC power supplies, relay driver circuits, DC-DC converter outputs, and reverse polarity protection requiring stable component supply and long-lifecycle support.
Supply support for 1N3612GPHE3/73 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
Vishay General Semiconductor is a global supplier of discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability and industrial-grade qualification.
The 1N3612GPHE3/73 belongs to Vishay's SUPERECTIFIER® rectifier product line, engineered for high-reliability general-purpose power conversion where long-term stability under thermal and environmental stress is required.
FAQ
What is the maximum junction temperature rating for the 1N3612GPHE3/73?
The 1N3612GPHE3/73 has a maximum operating junction temperature of +175 °C. This rating allows sustained operation in high-ambient environments such as enclosed industrial control cabinets or near heat-generating components. Derating curves in the datasheet specify reduced current handling above 75 °C ambient, and thermal design must account for RθJA = 55 °C/W to avoid exceeding TJ max.
Is the 1N3612GPHE3/73 suitable for new designs?
No - the 1N3612GPHE3/73 is marked "Not for New Designs" per Vishay's official documentation (Revision: 05-Oct-2021). It remains available for legacy system repair, maintenance, and continuity programs, but Vishay recommends evaluating newer alternatives like the VS-1N400xGP series for new development due to enhanced process control and extended lifecycle support.
What does the "HE3/73" suffix indicate in 1N3612GPHE3/73?
The "HE3/73" suffix denotes RoHS-compliant matte tin plating (E3), halogen-free molding compound (H), and ammo pack packaging (73) containing 3000 units. The "GP" prefix confirms glass-passivated junction construction. This full ordering code ensures traceability to Vishay's qualified manufacturing lot and compliance with JESD 201 Class 1A whisker testing.
How does the reverse recovery time of the 1N3612GPHE3/73 compare to standard 1N400x diodes?
The 1N3612GPHE3/73 has a typical reverse recovery time (trr) of 2.0 μs, significantly faster than standard 1N400x diodes (e.g., 1N4004: ~30 μs). This enables more efficient operation in freewheeling and clamp applications where rapid turn-off minimizes voltage overshoot and switching loss, though it is not intended for high-frequency SMPS primary-side use.
What is the cathode identification method on the 1N3612GPHE3/73 package?
The cathode of the 1N3612GPHE3/73 is identified by a distinct color band (typically white or silver) located near one lead end of the DO-41 axial package. This band must be oriented toward the positive output node in rectifier configurations. Incorrect orientation results in open-circuit behavior and failure to conduct, making visual verification essential during manual assembly and inspection.
1N3612GPHE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- Superectifier®
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 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:
- 1 µA @ 400 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -65°C ~ 175°C
1N3612GPHE3/73 FAQ
1.How can I place an order for 1N3612GPHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N3612GPHE3/73 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 1N3612GPHE3/73 reliable?
The price and inventory of 1N3612GPHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N3612GPHE3/73 is usually 5 days.
3.What payment methods are accepted for 1N3612GPHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N3612GPHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N3612GPHE3/73?
1N3612GPHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N3612GPHE3/73 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 1N3612GPHE3/73?
For technical support, including 1N3612GPHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N3612GPHE3/73 requirements.
6.How does Aetrix verify that 1N3612GPHE3/73 is sourced from the original manufacturer or authorized distributors?
All 1N3612GPHE3/73 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 1N3612GPHE3/73 meets industry standards.
7.What is the process for return or replacement of 1N3612GPHE3/73?
All 1N3612GPHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1N3612GPHE3/73, 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 1N3612GPHE3/73 part is unused and in its original packaging.
Return procedure for 1N3612GPHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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