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Microchip Technology 469-03
- Part No.:
- 469-03
- Manufacturer:
- Microchip Technology
- Category:
- Bridge Rectifiers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
469-03.pdf
- Description:
- BRIDGE RECT 1P 600V 10A 8-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,485
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Product details
Overview
469-03 from Microsemi is a hermetically sealed, JANTXV-qualified single-phase 10 A bridge rectifier with 600 V peak reverse voltage per leg, voidless glass encapsulation, Category 1 metallurgical bonds, and electrically isolated aluminum case-designed for military power conversion in radar transmitters and avionics power supplies.
For engineers reviewing the 469-03 datasheet, 469-03 pinout, 469-03 application, or 469-03 equivalent, this part supports high-reliability DC power generation where thermal robustness (RθJC = 5 °C/W), controlled avalanche behavior, and radiation hardness per MicroNote 050 are critical selection criteria.
Technical Context
This device implements a four-diode single-phase full-wave bridge topology with all legs rated for 600 V VRWM and 100 A surge current. Its construction uses triple-layer passivation and voidless glass-to-metal seals to ensure long-term stability under thermal cycling and ionizing radiation exposure.
The 469-03 operates across –65 °C to +150 °C junction temperature range, with isolation voltage of 2800 V DC and reverse recovery time of 2.5 µs at IF = 0.5 A, IR = 1.0 A, IREC = 0.25 A-enabling use in high-dV/dt switching environments without snubber dependency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM (per leg) | 600 V peak - defines maximum continuous reverse voltage each diode leg withstands without breakdown |
| IO @ TC = +55 °C | 10 A average DC output - usable full-load current when case temperature maintained at 55 °C |
| RθJC | 5 °C/W - enables efficient heat transfer from junction to case, supporting compact heatsink design |
| IF(surge) | 100 A peak (8.3 ms) - sustains short-duration line surges common in MIL-STD-704 aircraft power systems |
| VISO | 2800 V DC - provides galvanic isolation between AC input terminals and grounded case |
| trr | 2.5 µs - ensures fast turn-off for reduced switching losses in high-frequency rectification |
| TJ/TSTG | –65 °C to +150 °C - qualified for operation in extreme environmental conditions including space-grade thermal vacuum |
Pinout & Package
Package: MD - hermetically sealed aluminum case with tin/lead or RoHS-compliant matte tin terminals; weight ≈10 g; polarity marked as AC (input), + (cathode output), – (anode output); terminal 1 identified by mechanical index (flattened corner or line).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (AC) | Alternating Current Input | Common AC input node connecting both anodes and cathodes of internal diode pairs |
| 2 (+) | Cathode Output | Positive DC output terminal - connected to cathodes of both upper diodes in bridge configuration |
| 3 (–) | Anode Output | Negative DC output terminal - connected to anodes of both lower diodes in bridge configuration |
Key Features
| Feature | Design Value |
|---|---|
| Voidless glass encapsulation | Eliminates internal delamination risk during thermal shock, extending lifetime in mission-critical power systems |
| Category 1 metallurgical bonds | Ensures bond integrity under mechanical vibration and radiation exposure per MIL-STD-883 method 2011 |
| Electrically isolated aluminum case | Allows direct mounting to grounded heatsinks without additional insulation, reducing system BOM cost |
| Controlled avalanche characteristics | Enables safe energy absorption during overvoltage transients without catastrophic failure |
| Inherent radiation hardness | Validated per Microsemi MicroNote 050 for TID tolerance >100 krad(Si), suitable for low-earth orbit applications |
Applications
| Avionics Power Supplies | Radar Transmitter HVPS |
|---|---|
Use Scenario: Converting 115 VAC 400 Hz aircraft bus to regulated DC for flight control computers and sensors. IC Role / Device Role / Timing Role: Primary AC/DC rectification stage delivering 10 A DC output with zero failure tolerance. Use Value: JANTXV qualification and –65 °C to +150 °C operation ensure reliability across all flight envelopes and storage conditions. | Use Scenario: High-current DC supply for magnetron or klystron modulator circuits requiring stable 600 V DC bus. IC Role / Device Role / Timing Role: High-surge-capable bridge rectifier handling repetitive 100 A pulses during RF burst transmission. Use Value: 100 A surge rating and 2.5 µs trr minimize voltage overshoot and reduce need for external snubbers. |
| Spacecraft Power Conditioning | Nuclear Instrumentation Systems |
Use Scenario: Front-end rectification in solar array regulators for LEO satellites exposed to total ionizing dose. IC Role / Device Role / Timing Role: Radiation-hardened bridge enabling unattended operation over multi-year missions. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or derating in TID >100 krad(Si) environments. | Use Scenario: DC power generation for neutron detection electronics operating inside reactor containment zones. IC Role / Device Role / Timing Role: Isolated, high-reliability rectifier interfacing with safety-critical instrumentation buses. Use Value: 2800 V isolation voltage and hermetic sealing prevent leakage path formation in high-humidity, high-radiation zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-reliability bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 469-02 | 400 V VRWM per leg (vs. 600 V); identical package, thermal, and surge ratings | Suitable for 28 VDC or 115 VAC 400 Hz systems with lower peak reverse stress | Select when system VRWM requirement is ≤400 V and cost optimization is prioritized |
| 469-04 | 800 V VRWM per leg (vs. 600 V); same construction, qualification level, and thermal performance | Required for 270 VDC aircraft bus or 400 VAC industrial systems with higher transient margins | Select when VRWM margin must exceed 600 V while retaining JANTXV qualification and MD package footprint |
Compared with 469-02 and 469-04, the 469-03 delivers optimal balance of voltage margin, surge capability, and qualification level for 600 V-class military power systems-avoiding overdesign or under-specification in avionics and radar applications.
Availability
469-03 is available at Aetrix Electronics and suitable for avionics power supplies, radar transmitter HVPS, and spacecraft power conditioning requiring stable component supply with full traceability and long-term obsolescence management.
Supply support for 469-03 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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The 469-03 belongs to Microsemi's MIL-PRF-19500/469 qualified bridge rectifier product line, engineered specifically for mission-critical power conversion where failure is not an option.
FAQ
What is the working peak reverse voltage rating of the 469-03?
The 469-03 has a working peak reverse voltage (VRWM) of 600 V per leg, verified per MIL-PRF-19500/469 test requirements. This rating reflects the maximum continuous sinusoidal reverse voltage the device can block without breakdown under specified thermal conditions, and it is distinct from breakdown voltage (V(BR) = 660 V min).
Is the 469-03 qualified to JANTXV level?
Yes, the 469-03 is fully qualified to JANTXV level per MIL-PRF-19500/469, including extended temperature screening, burn-in, and lot acceptance testing. The JANTXV designation appears in its full part number (e.g., M19500/469-03) and confirms compliance with the highest reliability tier for military applications.
What is the thermal resistance from junction to case for the 469-03?
The 469-03 has a thermal resistance from junction to case (RθJC) of 5 °C/W, measured under standard test conditions. This value enables predictable thermal modeling when mounted on a heatsink and directly informs maximum allowable power dissipation at a given case temperature.
Does the 469-03 have radiation hardness certification?
Yes, the 469-03 exhibits inherent radiation hardness validated per Microsemi MicroNote 050, demonstrating tolerance to total ionizing dose (TID) exceeding 100 krad(Si). No additional radiation qualification testing is required for low-earth orbit or nuclear instrumentation use cases.
What are the terminal markings and polarity identification for the 469-03?
The 469-03 is marked with "AC" for the alternating current input terminal, "+" for the cathode (positive) output, and "–" for the anode (negative) output. Terminal 1 (AC) is identified by a mechanical index-either a flattened corner or line visible from the top surface-as defined in the MD package drawing.
469-03 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 600 V
- Current - Average Rectified (Io):
- 10 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.35 V @ 15.7 A
- Current - Reverse Leakage @ Vr:
- 2 µA @ 600 V
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
469-03 FAQ
1.How can I place an order for 469-03 through Aetrix?
Please submit a Request for Quotation (RFQ) for 469-03 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 469-03 reliable?
The price and inventory of 469-03 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 469-03 is usually 5 days.
3.What payment methods are accepted for 469-03?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 469-03 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 469-03?
469-03 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 469-03 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 469-03?
For technical support, including 469-03 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 469-03 requirements.
6.How does Aetrix verify that 469-03 is sourced from the original manufacturer or authorized distributors?
All 469-03 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 469-03 meets industry standards.
7.What is the process for return or replacement of 469-03?
All 469-03 units undergo pre-shipment inspection (PSI). If there is an issue with 469-03, 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 469-03 part is unused and in its original packaging.
Return procedure for 469-03:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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