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Microchip Technology 469-05
- Part No.:
- 469-05
- Manufacturer:
- Microchip Technology
- Category:
- Bridge Rectifiers
- Package:
- 4-Square
- Datasheet:
-
469-05.pdf
- Description:
- BRIDGE RECT 1PHASE 1KV 10A MD
- Quantity:
- Payment:
- Shipping:
Inventory:2,230
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Product details
Overview
469-05 from Microsemi is a hermetically sealed, JANTXV-qualified single-phase 10 A bridge rectifier with 1,000 V peak reverse voltage per leg, electrically isolated aluminum case, and voidless glass encapsulation. It delivers high-reliability power conversion in military-grade power supplies, avionics DC bus conditioning, and radiation-hardened systems requiring >2800 V isolation and controlled avalanche behavior.
For engineers reviewing the 469-05 datasheet, 469-05 pinout, 469-05 application, or 469-05 equivalent, key selection criteria include its MIL-PRF-19500/469 qualification level, thermal resistance (5 °C/W junction-to-case), 100 A surge rating, and RoHS-compliant terminal options - all critical for high-integrity analog power front-ends.
Technical Context
This device implements a four-diode single-phase full-wave bridge topology with each leg rated for 1,000 V working peak reverse voltage (VRWM) and 1.35 V forward voltage at 15.7 A peak. Its construction uses Category 1 metallurgical bonds and triple-layer passivation to ensure stable operation across –65 °C to +150 °C junction temperature range.
The aluminum case provides electrical isolation and low thermal resistance (RθJC = 5 °C/W), enabling direct heatsink mounting without insulating washers. Reverse recovery time is tightly specified at 2.5 µs under standardized test conditions (IF = 0.5 A, IRM = 1.0 A, IREC = 0.25 A), supporting reliable switching in line-frequency rectification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM per leg | 1,000 V - maximum sustained reverse voltage before breakdown; defines safe AC input voltage ceiling for full-wave rectification |
| IO @ TC = +55 °C | 10 A - continuous average DC output current with case temperature held at 55 °C; requires active thermal management above this point |
| RθJC | 5 °C/W - enables efficient heat transfer to heatsink; supports 10 A operation with ≤50 °C case-to-heatsink ΔT |
| VISO | 2800 V - dielectric withstand voltage between terminals and isolated case; certifies safety in high-isolation systems |
| trr | 2.5 µs - reverse recovery time under defined test conditions; ensures minimal commutation loss in 50/60 Hz applications |
| VF @ 15.7 A pk | 1.35 V - forward voltage drop at surge-level current; determines conduction loss and thermal stress during transient loads |
| TJ/TSTG | –65 to +150 °C - operational and storage temperature range; validated for extended life in harsh environmental profiles |
Pinout & Package
Package: MD - hermetically sealed, electrically isolated aluminum case with tin/lead or RoHS-compliant matte tin terminals. Dimensions: 0.735–0.750 in (18.67–19.05 mm) width, 0.367–0.375 in (9.32–9.53 mm) height, 0.570 in (14.48 mm) max overall height. Polarity marked: AC (AC input), + (cathode output), – (anode output).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (AC) | Alternating current input | Common AC input node for both diode legs; connects to transformer secondary or AC line |
| 2 (+) | Cathode output | Positive DC output terminal; carries full rectified current to load or filter capacitor |
| 3 (–) | Anode output | Negative DC output terminal; completes full-wave path; referenced as system ground in many designs |
| 4 (AC) | Alternating current input | Second AC input node; symmetrical with Pin 1 to form center-tapped or dual-winding interface |
Key Features
| Feature | Design Value |
|---|---|
| Voidless glass encapsulation | Eliminates internal delamination risk under thermal cycling and vibration; extends lifetime in aerospace deployments |
| Category 1 metallurgical bonds | Guarantees bond integrity per MIL-STD-750 Method 2035; prevents interfacial failure under mechanical shock |
| Electrically isolated case | Enables direct mounting to grounded heatsinks without insulation hardware; reduces thermal interface resistance |
| Controlled avalanche characteristics | Allows safe energy dissipation during overvoltage transients without destructive breakdown |
| Inherent radiation hardness | Validated per MicroNote 050; suitable for space-qualified systems without additional shielding |
Applications
| Military Power Conversion | Avionics DC Bus Conditioning |
|---|---|
Use Scenario: Primary AC-to-DC conversion in airborne radar transmitter power supplies operating at –55 °C to +70 °C ambient. IC Role / Device Role / Timing Role: Full-wave bridge rectifier providing isolated, high-current DC bus with MIL-qualified reliability. Use Value: JANTXV qualification and 2800 V isolation meet DO-160 Section 22 lightning-induced transient requirements. | Use Scenario: Rectifying 115 VAC 400 Hz aircraft generator output into regulated 28 VDC for flight control electronics. IC Role / Device Role / Timing Role: High-surge-capable bridge rectifier handling 100 A fault currents during generator short-circuit events. Use Value: 100 A surge rating and 5 °C/W thermal resistance prevent thermal runaway during 8.3 ms fault pulses. |
| Radiation-Hardened Systems | High-Reliability Industrial UPS |
Use Scenario: Front-end rectification in satellite power distribution units exposed to total ionizing dose >100 krad(Si). IC Role / Device Role / Timing Role: Radiation-tolerant bridge rectifier maintaining forward voltage stability after cumulative irradiation. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for derating or shielding overhead. | Use Scenario: Critical rectification stage in medical-grade uninterruptible power supplies requiring zero-failure history over 15-year service life. IC Role / Device Role / Timing Role: Hermetically sealed, voidless-glass bridge ensuring long-term parameter stability under continuous thermal stress. Use Value: Triple-layer passivation and Category 1 bonds prevent corrosion and bond lift in humid, high-vibration environments. |
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 |
|---|---|---|---|
| VMI 469-05 | Same MD package, identical VRWM (1000 V), but qualified to MIL-PRF-19500/469 Rev. B; slightly higher RθJA (28 °C/W vs 25 °C/W) | Approved for newer DoD procurement contracts referencing Rev. B; same thermal derating curve | Select when Rev. B compliance is contractually mandated; otherwise 469-05 remains fully interoperable |
| Microsemi 483-05 | Same die, identical electrical specs, but commercial-grade (non-mil-qualified); no JANTXV screening or Category 1 bond validation | Acceptable for non-mission-critical industrial use where cost sensitivity outweighs qualification requirements | Choose only if MIL-PRF-19500/469 qualification is not required; not suitable for defense/aerospace BOMs |
Compared with VMI 469-05 and Microsemi 483-05, the 469-05 uniquely combines JANTXV-level screening, Category 1 bond validation, and 25 °C/W RθJA - making it the sole option for legacy and new-design military platforms requiring full Rev. A compliance and proven field reliability.
Availability
469-05 is available at Aetrix Electronics and suitable for military power conversion, avionics DC bus conditioning, and radiation-hardened systems requiring stable component supply across extended product lifecycles.
Supply support for 469-05 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 469-05 belongs to Microsemi's MIL-PRF-19500/469 qualified bridge rectifier family, engineered specifically for mission-critical power conversion where failure is not an option.
FAQ
What is the maximum working peak reverse voltage per leg for the 469-05?
The 469-05 has a working peak reverse voltage (VRWM) of 1,000 V per leg, as confirmed in the RF01149 Rev. A datasheet Maximum Ratings table. This rating defines the highest sustained reverse voltage the device can block without breakdown under normal operating conditions and is validated for JANTXV-level qualification per MIL-PRF-19500/469.
Is the 469-05 qualified to MIL-PRF-19500/469, and what level?
Yes, the 469-05 is qualified to MIL-PRF-19500/469 at the JANTXV reliability level, as explicitly stated in the RF01149 Rev. A datasheet. This includes full screening per Method 5005 and validation of Category 1 metallurgical bonds, voidless glass encapsulation, and triple-layer passivation - distinguishing it from commercial or JANTX-grade variants.
What is the thermal resistance from junction to case (RθJC) for the 469-05?
The junction-to-case thermal resistance (RθJC) for the 469-05 is 5 °C/W, per the RF01149 Rev. A Maximum Ratings table. This value enables efficient heat transfer to an external heatsink and supports the device's 10 A average current rating at TC = +55 °C when properly mounted.
Does the 469-05 have inherent radiation hardness, and is it documented?
Yes, the 469-05 exhibits inherent radiation hardness as described in Microsemi MicroNote 050, cited in the RF01149 Rev. A Applications/Benefits section. This characteristic stems from its construction - including voidless glass encapsulation and Category 1 bonds - and does not require external hardening measures.
What are the terminal finish options for the 469-05?
The 469-05 offers two terminal finish options: standard tin/lead (Sn/Pb) solder dip and RoHS-compliant matte tin, as specified in the RF01149 Rev. A Mechanical and Packaging section. The RoHS version is available for commercial-grade orders (e3 suffix), while JANTXV parts retain Sn/Pb unless specially ordered.
469-05 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 4-Square
- Packaging:
- Bulk
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 1 kV
- Current - Average Rectified (Io):
- 10 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.35 V @ 15.7 A
- Current - Reverse Leakage @ Vr:
- 2 µA @ 1000 V
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- MD
469-05 FAQ
1.How can I place an order for 469-05 through Aetrix?
Please submit a Request for Quotation (RFQ) for 469-05 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 469-05 reliable?
The price and inventory of 469-05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 469-05 is usually 5 days.
3.What payment methods are accepted for 469-05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 469-05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 469-05?
469-05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 469-05 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 469-05?
For technical support, including 469-05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 469-05 requirements.
6.How does Aetrix verify that 469-05 is sourced from the original manufacturer or authorized distributors?
All 469-05 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 469-05 meets industry standards.
7.What is the process for return or replacement of 469-05?
All 469-05 units undergo pre-shipment inspection (PSI). If there is an issue with 469-05, 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 469-05 part is unused and in its original packaging.
Return procedure for 469-05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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