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Microchip Technology 688-10
- Part No.:
- 688-10
- Manufacturer:
- Microchip Technology
- Category:
- Single Diodes
- Package:
- Module
- Datasheet:
-
688-10.pdf
- Description:
- DIODE GEN PURP 10KV 600MA
- Quantity:
- Payment:
- Shipping:
Inventory:7,665
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Product details
Overview
688-10(R)(e3) from Microsemi is a high-voltage stack diode designed for DC power conversion in pulsed and high-reliability systems, with 10 kV working peak reverse voltage (VRWM), 0.6 A average rectified forward current at 100 °C, 500 ns maximum reverse recovery time (trr), and voidless glass/epoxy construction for controlled avalanche performance in X-ray generator and capacitor-charging applications.
For engineers reviewing the 688-10(R)(e3) datasheet, 688-10(R)(e3) pinout, 688-10(R)(e3) application, or 688-10(R)(e3) equivalent, this part delivers verified high-voltage rectification with RoHS-compliant matte tin terminations, bonded-plate thermal mounting, and MIL-PRF-19500 similarity for aerospace and industrial pulse-power designs.
Technical Context
This device implements a stacked series configuration of voidless glass-packaged diodes within an epoxy-filled plastic case to achieve rated 10 kV VRWM while maintaining low thermal resistance (RθJC = 10 °C/W). Its fast-recovery variant (suffix R) ensures trr ≤ 500 ns under IF = 10 mA / IRM = 10 mA test conditions.
The 688-10(R)(e3) operates up to 150 °C junction temperature and supports 20 A peak forward surge current (IFSM), with leakage current limited to 2 µA at 25 °C and 100 µA at 100 °C - critical for stable high-voltage hold-off in capacitor discharge circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 10 kV - working peak reverse voltage defining maximum continuous DC blocking capability |
| IO @ TC = 100 °C | 0.6 A - average rectified forward current rating under real-world heatsink-limited thermal conditions |
| trr (max) | 500 ns - reverse recovery time enabling efficient high-frequency switching in resonant converters |
| VFM @ 0.4 A | 17 V - forward voltage drop per leg at typical operating current, directly impacting conduction loss |
| RθJC | 10 °C/W - junction-to-case thermal resistance enabling direct bolt-down cooling with minimal thermal penalty |
| IRM @ 25 °C | 2 µA - reverse leakage current at rated VRWM and room temperature, ensuring low standby power loss |
| Junction Temp Range | –65 °C to +150 °C - extended operating range supporting harsh-environment deployment |
Pinout & Package
Package: Epoxy-filled plastic housing with voidless glass diode stacks; brass 10-32 tapped mounting inserts on bottom; gold-plated brass terminals with RoHS-compliant matte tin finish; weight ≈ 70 g; dimensions: 75.82–76.58 mm (B) × 53.59–54.36 mm (C) × 18.80–19.56 mm (D).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | High-potential input terminal | Accepts positive DC or pulsed input; marked adjacent to terminal; requires insulated mounting due to 10 kV isolation |
| Cathode | Low-potential output terminal | Delivers rectified output; marked adjacent to terminal; bonded plate enables direct thermal path to heatsink |
Key Features
| Feature | Design Value |
|---|---|
| Fused-in voidless glass diode design | Eliminates internal voids to prevent partial discharge and premature breakdown under sustained high-voltage stress |
| Controlled avalanche characteristics | Enables predictable, non-destructive energy absorption during overvoltage transients without parameter shift |
| Bonded plate for heat transfer | Direct metal-to-metal thermal interface reduces RθJC to 10 °C/W, allowing higher power density than standard package mounts |
| MIL-PRF-19500 similarity | Meets reliability, screening, and qualification benchmarks aligned with military-grade semiconductor standards |
| RoHS-compliant (e3) | Matte tin termination meets EU Directive 2011/65/EU, eliminating lead while preserving solderability and corrosion resistance |
Applications
| X-ray Generator Power Supply | Capacitor Charging Circuit |
|---|---|
Use Scenario: High-voltage DC supply for rotating anode X-ray tubes requiring stable 80–150 kV output with microsecond-level pulsing. IC Role / Device Role / Timing Role: Primary high-voltage rectifier stack in Cockcroft-Walton multiplier stages, handling repetitive 10 kV reverse bias and 0.6 A average current. Use Value: Voidless glass construction prevents dielectric degradation under ionizing radiation; 500 ns trr minimizes switching loss during rapid polarity reversal. | Use Scenario: Energy storage charging in pulsed laser drivers and electromagnetic launchers where capacitors must charge to 10–25 kV in <100 ms. IC Role / Device Role / Timing Role: High-reliability series-stacked rectifier delivering regulated DC to primary capacitor bank, operating at 100 °C ambient with 20 A surge tolerance. Use Value: 20 A IFSM rating withstands inrush surges; bonded plate mounting maintains junction temperature below 150 °C during repeated duty cycles. |
| Pulsed Radar Transmitter | Industrial Electrostatic Precipitator |
Use Scenario: Modulator supply for magnetron or klystron-based radar transmitters demanding 10 kV DC with sub-millisecond pulse repetition. IC Role / Device Role / Timing Role: Fast-recovery high-voltage stack in pulse-forming network (PFN) charging circuit, subjected to 500 ns trr-critical commutation. Use Value: trr ≤ 500 ns ensures clean turn-off before next pulse; MIL-PRF-19500 similarity validates operation in mission-critical defense platforms. | Use Scenario: High-voltage DC source for electrostatic collection plates in coal-fired power plant exhaust systems, operating continuously at 10–15 kV. IC Role / Device Role / Timing Role: Mainline rectifier in transformer-rectifier set, exposed to high humidity, dust, and thermal cycling from 25 °C to 100 °C. Use Value: 150 °C max junction temperature and 2 µA IRM at 25 °C ensure long-term insulation integrity and low leakage-induced efficiency loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier stack applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IXYS MDD100-12N1 | 12 kV VRWM, 100 A IFSM, TO-247 package, single-diode not stacked | Higher surge capacity but lower VRWM per device; requires external series stacking for 10 kV+ systems | Select when system-level surge >20 A is required and board space allows discrete stacking |
| Vishay GP10K | 10 kV VRWM, 0.5 A IO, 1000 ns trr, ceramic/metal package | Slower recovery limits use in >1 kHz switching; higher RθJC (25 °C/W) reduces thermal headroom | Select when cost sensitivity outweighs trr and thermal performance requirements |
Compared with IXYS MDD100-12N1 and Vishay GP10K, the 688-10(R)(e3) uniquely integrates 10 kV blocking, 0.6 A average current, and 500 ns trr in a pre-stacked, thermally optimized package - eliminating series-matching complexity and enabling direct bolt-down cooling in space-constrained HV modules.
Availability
688-10(R)(e3) is available at Aetrix Electronics and suitable for X-ray generator power supplies, capacitor charging circuits, pulsed radar transmitters, and industrial electrostatic precipitators requiring stable component supply across extended production lifecycles.
Supply support for 688-10(R)(e3) 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, high-voltage, and radiation-hardened components for aerospace, defense, and industrial markets.
The 688 series was developed specifically for high-voltage DC power conversion in pulsed-energy systems, emphasizing void-free construction, controlled avalanche behavior, and MIL-PRF-19500-aligned reliability for mission-critical applications.
FAQ
What is the maximum junction temperature rating for the 688-10(R)(e3)?
The 688-10(R)(e3) has a maximum junction temperature rating of +150 °C, validated per RF01099 Rev A. This rating enables operation in high-ambient environments such as enclosed X-ray generator cabinets or industrial precipitator control enclosures. Derating curves in the datasheet show linear current reduction above 100 °C case temperature. Thermal design must maintain TJ ≤ 150 °C using the specified RθJC = 10 °C/W path.
Does the 688-10(R)(e3) require external series stacking to achieve 10 kV blocking?
No - the 688-10(R)(e3) is a factory-integrated high-voltage stack delivering 10 kV VRWM as a single unit. Unlike discrete diodes such as the Vishay GP10K, it contains multiple voidless glass diodes internally series-connected and potted in epoxy. This eliminates matching, balancing, and layout complexity associated with user-assembled stacks, and ensures uniform voltage distribution under transient stress.
What does the "(R)(e3)" suffix indicate on the 688-10(R)(e3)?
The "R" denotes fast-recovery configuration with trr ≤ 500 ns (tested at IF = 10 mA, IRM = 10 mA, IR(REC) = 5 mA); "e3" specifies RoHS-compliant matte tin termination per JEDEC J-STD-609. Both features are integral to the 688-10(R)(e3) ordering code - no alternate suffixes exist for this variant. Non-RoHS versions omit "e3"; non-fast-recovery versions omit "R".
How is thermal management implemented for the 688-10(R)(e3)?
The 688-10(R)(e3) uses a bonded copper plate on its base for direct thermal conduction to a heatsink or chassis. With RθJC = 10 °C/W, a 20 W dissipation (e.g., 0.6 A × 17 V) raises junction temperature by only 200 °C above case - making forced-air or conductive cooling sufficient. Mounting requires brass 10-32 screws into the tapped inserts; thermal interface material is recommended between plate and heatsink surface.
Is the 688-10(R)(e3) suitable for AC line rectification at 50/60 Hz?
Yes - the 688-10(R)(e3) is rated for average rectified forward current (IO) at 50/60 Hz sine-wave input with 180° conduction angle, per JESD282-B. At TC = 100 °C, it delivers 0.6 A IO, making it appropriate for low-frequency, high-voltage DC supplies such as legacy radar modulators or industrial HV test equipment where switching losses are negligible and reliability under sustained reverse bias is paramount.
688-10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 10000 V
- Current - Average Rectified (Io):
- 600mA
- Voltage - Forward (Vf) (Max) @ If:
- 17 V @ 400 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 500 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 10000 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -65°C ~ 150°C
688-10 FAQ
1.How can I place an order for 688-10 through Aetrix?
Please submit a Request for Quotation (RFQ) for 688-10 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 688-10 reliable?
The price and inventory of 688-10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 688-10 is usually 5 days.
3.What payment methods are accepted for 688-10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 688-10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 688-10?
688-10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 688-10 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 688-10?
For technical support, including 688-10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 688-10 requirements.
6.How does Aetrix verify that 688-10 is sourced from the original manufacturer or authorized distributors?
All 688-10 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 688-10 meets industry standards.
7.What is the process for return or replacement of 688-10?
All 688-10 units undergo pre-shipment inspection (PSI). If there is an issue with 688-10, 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 688-10 part is unused and in its original packaging.
Return procedure for 688-10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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