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Microchip Technology 1N5807URS/TR
- Part No.:
- 1N5807URS/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Diodes
- Package:
- SQ-MELF, B
- Datasheet:
-
1N5807URS/TR.pdf
- Description:
- UFR,FRR
- Quantity:
- Payment:
- Shipping:
Inventory:4,843
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Product details
Overview
1N5807URS/TR from Microsemi is an ultrafast recovery glass rectifier diode in MELF-style URS package (one square + one round end cap), rated for 50 V working peak reverse voltage, 6.0 A average rectified current at 75 °C case temperature, and 30 ns reverse recovery time. It serves as a high-reliability power conversion switch in military-grade DC/DC converters and radiation-hardened power supplies.
For engineers reviewing the 1N5807URS/TR datasheet, 1N5807URS/TR pinout, 1N5807URS/TR application, or 1N5807URS/TR equivalent, key selection criteria include its void-less hermetic glass construction, Category 1 metallurgical bond, MIL-PRF-19500/477 qualification (JAN/JANTXV levels), and low thermal resistance (6.5 °C/W junction-to-end-cap).
Technical Context
This device belongs to Microsemi's ultrafast recovery rectifier family designed for high-reliability power conversion where failure tolerance is critical. Its internal tungsten slug construction and quadruple-layer passivation enable stable operation across –65 °C to +175 °C junction temperature range while maintaining controlled avalanche capability and low forward voltage (0.875 V max at 4 A pulse).
The URS package configuration-featuring one square and one round end cap-supports surface-mount assembly with EIA-296 tape-and-reel delivery and enables direct thermal path to PCB pads. Reverse recovery is characterized under strict conditions: IF = 1.0 A, IRM = 1.0 A, IR(REC) = 0.10 A, and di/dt ≥ 100 A/µs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 50 V - Maximum sustainable reverse voltage without breakdown across full operating temperature range |
| IO1 @ TL = 75 °C | 6.0 A - Continuous average forward current rating with 3/8″ lead length thermal path |
| trr | 30 ns - Time required to transition from forward conduction to reverse blocking under defined di/dt and current conditions |
| VFM @ 4 A (pulse) | 0.875 V - Peak forward voltage drop limiting conduction loss in high-frequency switching stages |
| RθJEC | 6.5 °C/W - Junction-to-end-cap thermal resistance enabling efficient heat transfer to mounting surface |
| IFSM | 125 A - Non-repetitive surge current handling capability for line transient protection |
| CJ @ 10 V, 1 MHz | 60 pF - Junction capacitance affecting high-frequency switching noise and EMI behavior |
Pinout & Package
1N5807URS/TR uses a hermetically sealed void-less glass MELF-style URS package (one square end cap, one round end cap), with cathode indicated by blue band on body. Terminals are tin/lead or RoHS-compliant matte tin over nickel over copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to input side of rectification stage; accepts pulsed or continuous forward current up to 6.0 A average |
| Cathode | Forward current exit / reverse voltage terminal | Marked by blue band; carries output current to load and withstands up to 50 V reverse bias continuously |
Key Features
| Feature | Design Value |
|---|---|
| Void-less hermetic glass seal | Eliminates moisture ingress and internal delamination risk in long-life, high-vacuum, or space environments |
| Category 1 metallurgical bond | Ensures mechanical integrity and thermal stability under extreme thermal cycling and shock conditions |
| Quadruple-layer passivation | Provides enhanced surface insulation and leakage suppression at high reverse bias and elevated temperature |
| MIL-PRF-19500/477 qualification | Validated reliability for JAN, JANTX, JANTXV, and JANS levels-required for defense and aerospace programs |
| Controlled avalanche capability | Enables safe energy dissipation during inductive turn-off transients without destructive failure |
Applications
| Military Power Conversion | Spacecraft DC/DC Converters |
|---|---|
Use Scenario: High-efficiency, radiation-tolerant AC/DC and DC/DC conversion in airborne radar power systems. IC Role / Device Role / Timing Role: Ultrafast rectifier in synchronous or asymmetrical half-bridge output stage. Use Value: 30 ns trr and 6.0 A IO1 support >200 kHz switching with minimal reverse recovery loss and thermal stress. | Use Scenario: Secondary-side rectification in isolated flyback or forward converters onboard LEO satellites. IC Role / Device Role / Timing Role: Hermetically sealed rectifier handling regulated 28 V bus distribution under total ionizing dose exposure. Use Value: Inherent radiation hardness per MicroNote 050 and –65 °C to +175 °C operation ensure mission-critical uptime. |
| High-Reliability Industrial SMPS | Avionics Power Supplies |
Use Scenario: Front-end rectification in medical imaging power modules requiring zero field failures. IC Role / Device Role / Timing Role: Primary rectifier in bridge configuration delivering clean 48 V intermediate bus. Use Value: 125 A IFSM and low RθJEC (6.5 °C/W) sustain repeated lightning-surge events without thermal runaway. | Use Scenario: Output rectification in certified DO-160G Level D power supplies for flight control electronics. IC Role / Device Role / Timing Role: Fast-recovery diode in redundant dual-output converter with fault-isolation requirements. Use Value: MIL-qualified construction and controlled avalanche behavior meet safety-critical fault containment standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5807US | Same electrical specs but US package (two square end caps); not URS form factor | Requires different PCB pad layout; lacks URS asymmetric thermal interface geometry | Select 1N5807US only if board layout supports dual-square-end-cap footprint and tape-and-reel compatibility is confirmed |
| 1N5807 | Axial-leaded through-hole variant; identical VRWM, trr, and VF but higher RθJA due to lead-frame thermal path | Suitable for prototyping or legacy through-hole designs; not surface-mount compatible | Choose 1N5807 when manual assembly, rework flexibility, or heritage board compatibility outweigh SMT density benefits |
Compared with 1N5807US and 1N5807, the 1N5807URS/TR offers optimized surface-mount thermal performance via its asymmetric URS end-cap geometry, tighter MIL-qualified screening, and standardized EIA-296 tape-and-reel packaging-making it preferred for new high-reliability SMT designs.
Availability
1N5807URS/TR is available at Aetrix Electronics and suitable for military power conversion, spacecraft DC/DC converters, and high-reliability industrial SMPS requiring stable component supply, long-term traceability, and MIL-spec compliance.
Supply support for 1N5807URS/TR 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
Microsemi Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability, radiation-hardened, and defense-grade analog and discrete components.
The 1N5807URS/TR belongs to Microsemi's ultrafast glass rectifier product line, engineered specifically for mission-critical power conversion in aerospace, defense, and industrial systems demanding MIL-PRF-19500 qualification and hermetic reliability.
FAQ
What is the maximum working peak reverse voltage for the 1N5807URS/TR?
The 1N5807URS/TR has a VRWM of 50 V, meaning it can reliably block up to 50 volts of reverse voltage across its full operating temperature range (–65 °C to +175 °C). This rating is validated per MIL-PRF-19500/477 and applies to both JAN and commercial versions of the 1N5807URS/TR.
Is the 1N5807URS/TR RoHS compliant?
The 1N5807URS/TR is available in RoHS-compliant versions only for commercial-grade units (marked with "e3" suffix), using matte tin over nickel over copper terminals. MIL-qualified variants (JAN/JANTXV) retain Sn/Pb terminations and are exempt from RoHS per defense procurement policy. Always verify suffix and grade before ordering the 1N5807URS/TR.
What does "URS" signify in the 1N5807URS/TR part number?
"URS" denotes the package configuration: one square end cap and one round end cap, distinguishing it from "US" (two square end caps) and axial "1N5807". This asymmetric geometry optimizes thermal transfer in surface-mount applications and is standardized per EIA-296 tape-and-reel packaging for the 1N5807URS/TR.
How is the 1N5807URS/TR qualified for high-reliability use?
The 1N5807URS/TR is qualified to MIL-PRF-19500/477 at JAN, JANTX, JANTXV, and JANS levels, featuring void-less hermetic glass sealing, Category 1 metallurgical bonds, quadruple-layer passivation, and radiation hardness per MicroNote 050-key attributes verified during lot acceptance testing for the 1N5807URS/TR.
What is the thermal resistance from junction to end cap for the 1N5807URS/TR?
The 1N5807URS/TR has a specified RθJEC of 6.5 °C/W, measured from junction to end cap under standard test conditions. This low value reflects the efficient thermal path enabled by tungsten slugs and hermetic glass construction, directly supporting high-current operation in thermally constrained 1N5807URS/TR designs.
1N5807URS/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SQ-MELF, B
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 875 mV @ 4 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 30 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 50 V
- Capacitance @ Vr, F:
- 60pF @ 10V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- B, SQ-MELF
- Operating Temperature - Junction:
- -65°C ~ 175°C
1N5807URS/TR FAQ
1.How can I place an order for 1N5807URS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5807URS/TR 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 1N5807URS/TR reliable?
The price and inventory of 1N5807URS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5807URS/TR is usually 5 days.
3.What payment methods are accepted for 1N5807URS/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5807URS/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5807URS/TR?
1N5807URS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5807URS/TR 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 1N5807URS/TR?
For technical support, including 1N5807URS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5807URS/TR requirements.
6.How does Aetrix verify that 1N5807URS/TR is sourced from the original manufacturer or authorized distributors?
All 1N5807URS/TR 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 1N5807URS/TR meets industry standards.
7.What is the process for return or replacement of 1N5807URS/TR?
All 1N5807URS/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5807URS/TR, 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 1N5807URS/TR part is unused and in its original packaging.
Return procedure for 1N5807URS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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