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Microchip Technology 469-02
- Part No.:
- 469-02
- Manufacturer:
- Microchip Technology
- Category:
- Bridge Rectifiers
- Package:
- 4-Square
- Datasheet:
-
469-02.pdf
- Description:
- BRIDGE RECT 1PHASE 400V 10A MD
- Quantity:
- Payment:
- Shipping:
Inventory:4,834
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Product details
Overview
469-02 from Microsemi is a hermetically sealed, JANTXV-qualified single-phase 10 A bridge rectifier with 400 V working peak reverse voltage per leg, voidless glass encapsulation, Category 1 metallurgical bonds, and electrically isolated aluminum case-designed for military power supplies requiring failure-intolerant reliability.
For engineers reviewing the 469-02 datasheet, 469-02 pinout, 469-02 application, or 469-02 equivalent, key selection criteria include its MIL-PRF-19500/469 qualification level, 5 °C/W junction-to-case thermal resistance, 100 A surge current rating, and radiation-hardened construction per MicroNote 050.
Technical Context
This device implements a full-wave single-phase bridge topology using four discrete high-reliability diodes in one MD package. Each leg is individually qualified to MIL-PRF-19500/469 with controlled avalanche characteristics and trr = 2.5 µs at IF = 0.5 A, IR = 1.0 A.
It features triple-layer passivation, Sn/Pb or RoHS-compliant matte tin terminals, and an electrically isolated aluminum case rated for 2800 V isolation. Thermal performance is defined by RθJC = 5 °C/W and RθJA = 25 °C/W, enabling stable operation up to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM (per leg) | 400 V pk - defines maximum continuous reverse voltage each diode leg withstands without breakdown |
| IO1 @ TC = +55 °C | 10 A DC - maximum average output current with heatsink at case temperature of 55 °C |
| IF(surge) | 100 A pk (8.3 ms) - peak non-repetitive forward surge current capability under standard test conditions |
| RθJC | 5 °C/W - enables efficient heat transfer from junction to case, critical for high-power derating |
| VISO | 2800 V - isolation voltage between case and terminals, supporting safety-critical high-voltage systems |
| trr | 2.5 µs - reverse recovery time measured at IF = 0.5 A, IR = 1.0 A, ensuring fast switching in line-frequency rectification |
| TJ & TSTG | –65 to +150 °C - extended temperature range supports operation in harsh military and aerospace environments |
Pinout & Package
Package: MD - hermetically sealed, electrically isolated aluminum case with tin/lead or RoHS-compliant matte tin terminals; weight ≈ 10 g; polarity marked as AC (input), + (cathode output), – (anode output).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | AC Input Terminal 1 | One alternating current input node; connected internally to anode of one diode and cathode of another |
| AC2 | AC Input Terminal 2 | Second alternating current input node; completes full-wave bridge input path |
| + | Cathode Output | Positive DC output terminal; common cathode connection of two series diodes |
| – | Anode Output | Negative DC output terminal; common anode connection of two series diodes |
Key Features
| Feature | Design Value |
|---|---|
| Voidless glass encapsulation | Eliminates internal delamination risk under thermal cycling and shock, enhancing long-term reliability in mission-critical systems |
| Category 1 metallurgical bonds | Ensures robust interconnect integrity between semiconductor die and lead frame, meeting MIL-PRF-19500/469 mechanical stress requirements |
| Triple-layer passivation | Provides enhanced surface protection against moisture, ionic contamination, and electrical leakage in humid or corrosive environments |
| JANTXV qualification | Validated to higher screening and testing standards than JANTX, including extended burn-in and life test requirements |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050, suitable for space-qualified and nuclear instrumentation applications |
Applications
| Avionics Power Conversion | Military Radar Transmitter Supplies |
|---|---|
Use Scenario: Rectifying 400 VAC primary transformer output in airborne radar exciter modules operating at –55 °C to +70 °C ambient. IC Role / Device Role / Timing Role: Single-phase bridge rectifier providing isolated, high-reliability DC bus generation. Use Value: 100 A surge rating and 5 °C/W RθJC enable transient handling and thermal stability during pulsed RF amplifier operation. | Use Scenario: Converting 3-phase-derived 400 VAC to DC for magnetron modulator charging circuits in ground-based surveillance radars. IC Role / Device Role / Timing Role: High-current, radiation-hardened bridge rectifier in high-voltage pulse-forming network (PFN) front-end. Use Value: 2800 V isolation and MIL-PRF-19500/469 JANTXV qualification ensure survivability in EMI-intensive and radiation-prone radar bays. |
| Satellite Power Conditioning | Nuclear Instrumentation Systems |
Use Scenario: DC bus generation from solar array regulators in LEO satellite power management units exposed to total ionizing dose (TID). IC Role / Device Role / Timing Role: Radiation-hardened bridge rectifier in secondary regulation stage before battery charge control. Use Value: Inherent radiation tolerance per MicroNote 050 eliminates need for shielding or derating, reducing SWaP-C. | Use Scenario: Rectifying AC signals from neutron detector preamplifiers in reactor monitoring systems requiring >100 krad(Si) TID tolerance. IC Role / Device Role / Timing Role: High-isolation, low-leakage bridge rectifier in signal conditioning front-end. Use Value: <125 µA reverse current at VRWM and 2800 V isolation prevent false triggering in ultra-low-current detection paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-reliability rectifier bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 469-03 | 600 V VRWM per leg (vs. 400 V); otherwise identical construction, qualification, and thermal specs | Required where system peak reverse voltage exceeds 400 V but ≤600 V; same footprint and mounting | Select 469-03 when design margin requires ≥600 V PIV or operates with higher AC input transients |
| 469-01 | 200 V VRWM per leg; identical package, qualification, and thermal performance | Used in lower-voltage legacy avionics or test equipment where 200 V PIV suffices | Choose 469-01 only if VRWM requirement is strictly ≤200 V and cost optimization is prioritized over margin |
Compared with 469-01 and 469-03, the 469-02 provides optimal balance of voltage margin (400 V), surge capability (100 A), and qualification rigor (JANTXV) for mid-range military power supplies-avoiding overdesign or under-specification in 380–480 VAC systems.
Availability
469-02 is available at Aetrix Electronics and suitable for avionics power conversion, military radar transmitter supplies, and satellite power conditioning requiring stable component supply across extended product lifecycles.
Supply support for 469-02 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-series bridges belong to Microsemi's MIL-PRF-19500/469-qualified rectifier family, engineered specifically for failure-intolerant power conversion in military and space-grade systems.
FAQ
What is the qualification level of the 469-02?
The 469-02 is qualified to MIL-PRF-19500/469 at JANTXV level, meaning it undergoes extended environmental screening-including burn-in, life testing, and mechanical shock-beyond standard JANTX requirements. This qualification is documented in Microsemi's RF01149 datasheet and applies specifically to the 469-02 variant with 400 V VRWM. The 469-02 remains fully traceable to its lot-specific qualification records.
Does the 469-02 have radiation hardness certification?
Yes, the 469-02 exhibits inherent radiation hardness as described in Microsemi MicroNote 050, which documents its performance under total ionizing dose (TID) exposure. While not individually certified per MIL-STD-883 method 1019, its construction-voidless glass encapsulation, Category 1 bonds, and aluminum case-confers radiation tolerance validated across the 469-series family. This makes the 469-02 suitable for low-earth orbit and nuclear instrumentation applications.
What is the thermal resistance from junction to case for the 469-02?
The junction-to-case thermal resistance (RθJC) of the 469-02 is 5 °C/W, measured at the metal case per ASME Y14.5M. This value is confirmed in the Maximum Ratings table on page 1 of RF01149 Rev. A and enables precise thermal modeling when mounted to a heatsink. Derating follows linear curves: 10 A at +55 °C case temperature down to 6 A at +100 °C.
Can the 469-02 be used in RoHS-compliant designs?
Yes, RoHS-compliant versions of the 469-02 are available with matte tin terminations instead of Sn/Pb solder dip. These are designated with the "e3" suffix in the part nomenclature (e.g., M19500/469-02 (e3)) and meet JEDEC J-STD-609A Class 3 requirements. The RoHS version retains identical electrical, thermal, and qualification specifications as the standard 469-02.
What is the reverse recovery time (trr) specification for the 469-02?
The reverse recovery time (trr) of the 469-02 is 2.5 µs, measured under standardized conditions: IF = 0.5 A, IR = 1.0 A, and IREC = 0.25 A at +25 °C. This parameter is consistent across all 469-series variants (469-01 through 469-05) and reflects the fast-switching capability needed for line-frequency rectification with minimal switching loss and EMI generation.
469-02 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):
- 400 V
- Current - Average Rectified (Io):
- 10 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.35 V @ 15.7 A
- Current - Reverse Leakage @ Vr:
- 2 µA @ 400 V
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- MD
469-02 FAQ
1.How can I place an order for 469-02 through Aetrix?
Please submit a Request for Quotation (RFQ) for 469-02 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 469-02 reliable?
The price and inventory of 469-02 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 469-02 is usually 5 days.
3.What payment methods are accepted for 469-02?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 469-02 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 469-02?
469-02 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 469-02 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 469-02?
For technical support, including 469-02 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 469-02 requirements.
6.How does Aetrix verify that 469-02 is sourced from the original manufacturer or authorized distributors?
All 469-02 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 469-02 meets industry standards.
7.What is the process for return or replacement of 469-02?
All 469-02 units undergo pre-shipment inspection (PSI). If there is an issue with 469-02, 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 469-02 part is unused and in its original packaging.
Return procedure for 469-02:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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