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Vishay General Semiconductor - Diodes Division AR1PD-M3/85A
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- Part No.:
- AR1PD-M3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- DO-220AA
- Datasheet:
-
AR1PD-M3/85A.pdf
- Description:
- DIODE AVALANCHE 200V 1A DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,569
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Product details
Overview
AR1PD-M3/85A from Vishay General Semiconductor is a surface-mount fast avalanche rectifier diode in the eSMP® Series, configured as a single discrete silicon rectifier with 200 V maximum repetitive peak reverse voltage (VRRM), 1.0 A average forward current (IF(AV)), and 140 ns reverse recovery time (trr). It is AEC-Q101 qualified and used as a freewheeling or output rectifier in automotive DC-DC converters.
For engineers reviewing the AR1PD-M3/85A datasheet, AR1PD-M3/85A pinout, AR1PD-M3/85A application, or AR1PD-M3/85A equivalent, key selection criteria include its 1.15 V forward voltage at 1.0 A and 125 °C, 1 μA reverse leakage at rated VRRM, SMP (DO-220AA) package compatibility with automated placement, and MSL Level 1 moisture sensitivity rating.
Technical Context
This device employs a glass-passivated pellet chip junction for stable fast-switching performance and low reverse current. Its avalanche capability supports non-repetitive energy handling up to 20 mJ at IAS = 1.0 A, enabling robust operation in inductive switching circuits.
The SMP (DO-220AA) package delivers low thermal resistance (RθJM = 15 °C/W) and a typical height of 1.0 mm, supporting high-density PCB layouts. It meets JESD 201 Class 2 whisker test requirements and is halogen-free, RoHS-compliant, and commercial-grade (M3 suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum reverse blocking voltage before breakdown; defines safe operating range in rectifier applications. |
| IF(AV) | 1.0 A - Continuous average forward current under specified thermal conditions; determines power-handling capacity. |
| trr | 140 ns - Reverse recovery time at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables high-frequency switching efficiency. |
| VF | 1.15 V @ 1.0 A, 125 °C - Forward voltage drop at elevated temperature; directly impacts conduction loss and thermal design. |
| IR | 1 μA @ rated VRRM, 25 °C - Low reverse leakage ensures minimal standby power loss in high-impedance circuits. |
| EAS | 20 mJ - Non-repetitive avalanche energy rating; allows safe clamping during transient overvoltage events. |
| TJ max. | 175 °C - Maximum junction temperature; supports operation in under-hood automotive environments. |
Pinout & Package
Package: SMP (DO-220AA) - ultra-low-profile surface-mount package with cathode band marking; dimensions: 3.61 × 2.18 × 1.0 mm (L × W × H); matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to input/source side of rectification path; polarity-sensitive for correct DC output polarity. |
| Cathode | Forward current exit point / reverse-blocking terminal | Marked by band; connects to load/ground side; withstands up to 200 V reverse bias without conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Fast switching | 140 ns trr enables efficient operation in 100–500 kHz DC-DC converters, reducing switching losses. |
| Avalanche-rated | 20 mJ EAS provides built-in transient overvoltage protection without external snubbers in inductive loads. |
| AEC-Q101 qualified | Validated for automotive under-hood use including temperature cycling, humidity, and mechanical shock testing. |
| MSL Level 1 | Zero floor life limitation; can be stored indefinitely at ambient conditions prior to reflow soldering. |
| Low profile | 1.0 mm typical height allows integration into space-constrained modules such as infotainment power supplies. |
Applications
| Automotive DC-DC Converters | Industrial SMPS Output Rectification |
|---|---|
Use Scenario: Step-down conversion from 12 V or 48 V battery rails to 3.3 V/5 V logic supplies in ADAS ECUs. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck converter topology. Use Value: 140 ns trr minimizes reverse recovery loss; 175 °C TJ max supports operation near engine control units. |
Use Scenario: Secondary-side rectification in 20–60 W industrial AC-DC adapters powering PLC I/O modules. IC Role / Device Role / Timing Role: Output rectifier delivering regulated DC output with low conduction loss. Use Value: 1.15 V VF at 125 °C reduces thermal stress vs. standard FR diodes; DO-220AA footprint simplifies layout reuse. |
| Telecom Power Supply Clamping | Consumer Charger Freewheeling |
Use Scenario: Transient voltage clamping on 48 V telecom power distribution boards during hot-swap events. IC Role / Device Role / Timing Role: Avalanche energy absorber protecting downstream MOSFETs and controllers. Use Value: 20 mJ EAS rating handles repetitive line transients without degradation; AEC-Q101 reliability extends field life. |
Use Scenario: Freewheeling path in flyback-based USB-C PD chargers with variable output voltages. IC Role / Device Role / Timing Role: Unidirectional current path during transformer reset phase. Use Value: 1.0 mm height enables slim adapter designs; M3 suffix ensures RoHS/halogen-free compliance for global markets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R02U | Same VRRM (200 V), but higher VF (1.3 V @ 1 A, 125 °C); trr = 150 ns; TO-277 package (larger footprint). | Less suitable for ultra-thin consumer adapters due to 1.9 mm height; acceptable in industrial SMPS with relaxed height constraints. | Select when legacy TO-277 layout exists and 10 ns slower recovery is acceptable. |
| SB120-E3/54 | Lower VRRM (20 V), Schottky architecture; zero Qrr; VF = 0.52 V @ 1 A; same DO-220AA package. | Not usable in 200 V blocking applications; limited to low-voltage (<30 V) outputs where ultra-low VF is critical. | Choose only for <30 V secondary-side rectification where minimizing conduction loss outweighs voltage rating needs. |
Compared with STTH1R02U and SB120-E3/54, AR1PD-M3/85A uniquely balances 200 V blocking, 140 ns speed, 1.0 mm height, and AEC-Q101 qualification-making it optimal for automotive and space-constrained industrial rectification where both voltage rating and reliability are non-negotiable.
Availability
AR1PD-M3/85A is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS output rectification, and telecom power supply clamping requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for AR1PD-M3/85A 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability, efficiency, and automotive-grade validation.
The AR1PD-M3/85A belongs to Vishay's eSMP® Series of fast avalanche rectifiers, designed specifically for high-efficiency, high-reliability power conversion in automotive and industrial environments where compact size and transient robustness are critical.
FAQ
What is the maximum junction temperature rating for AR1PD-M3/85A?
The AR1PD-M3/85A has a maximum junction temperature (TJ) of 175 °C, verified per Vishay Document Number 89289. This rating enables reliable operation in under-hood automotive applications and high-ambient industrial environments. The device maintains specified electrical characteristics up to this temperature, and thermal design must ensure junction temperature remains below 175 °C under worst-case power dissipation and ambient conditions. AR1PD-M3/85A's RθJM of 15 °C/W supports effective heat transfer to the PCB mount.
Is AR1PD-M3/85A suitable for automotive applications?
Yes, AR1PD-M3/85A is AEC-Q101 qualified, confirming compliance with stress tests for automotive electronic components including temperature cycling, humidity, and mechanical shock. Its 175 °C TJ max, MSL Level 1 rating, and halogen-free RoHS-compliant construction meet Tier-1 supplier requirements. AR1PD-M3/85A is commonly deployed in automotive DC-DC converters and body control modules where reliability under thermal and vibration stress is mandatory.
What does the "/85A" suffix indicate in AR1PD-M3/85A?
The "/85A" suffix denotes the packaging configuration: 13-inch diameter plastic tape and reel, with a base quantity of 10,000 units per reel. This differs from "/84A", which specifies a 7-inch reel with 3,000 units. Both share identical electrical and thermal specifications; the suffix solely identifies reel size and quantity for automated SMT placement logistics. AR1PD-M3/85A is fully compatible with standard pick-and-place equipment calibrated for DO-220AA devices.
How does the reverse recovery time of AR1PD-M3/85A compare to standard FR diodes?
AR1PD-M3/85A has a reverse recovery time (trr) of 140 ns under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions-significantly faster than standard FR107 (500 ns) or UF4007 (75 ns, but lower VRRM). This enables higher switching frequencies and reduced switching losses in buck and flyback topologies. AR1PD-M3/85A achieves this while maintaining 200 V VRRM, making it a balanced choice where both speed and voltage rating matter.
Does AR1PD-M3/85A require derating at elevated ambient temperatures?
Yes, AR1PD-M3/85A requires forward current derating above 25 °C ambient, per its maximum forward current derating curve (Fig. 1 in Vishay Doc. 89289). At 100 °C ambient, IF(AV) must be reduced to approximately 0.65 A for free-air operation. Derating depends on PCB copper area and thermal mounting; the device's RθJA of 132 °C/W assumes minimum recommended pad area. Proper thermal design is essential to maintain AR1PD-M3/85A within its 175 °C TJ limit across the full operating range.
AR1PD-M3/85A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- eSMP®
- Package/Case:
- DO-220AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Avalanche
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 140 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 200 V
- Capacitance @ Vr, F:
- 12.5pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-220AA (SMP)
- Operating Temperature - Junction:
- -55°C ~ 175°C
AR1PD-M3/85A FAQ
1.How can I place an order for AR1PD-M3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for AR1PD-M3/85A 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 AR1PD-M3/85A reliable?
The price and inventory of AR1PD-M3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AR1PD-M3/85A is usually 5 days.
3.What payment methods are accepted for AR1PD-M3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AR1PD-M3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AR1PD-M3/85A?
AR1PD-M3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AR1PD-M3/85A 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 AR1PD-M3/85A?
For technical support, including AR1PD-M3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AR1PD-M3/85A requirements.
6.How does Aetrix verify that AR1PD-M3/85A is sourced from the original manufacturer or authorized distributors?
All AR1PD-M3/85A 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 AR1PD-M3/85A meets industry standards.
7.What is the process for return or replacement of AR1PD-M3/85A?
All AR1PD-M3/85A units undergo pre-shipment inspection (PSI). If there is an issue with AR1PD-M3/85A, 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 AR1PD-M3/85A part is unused and in its original packaging.
Return procedure for AR1PD-M3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AR1PD-M3/85A Tags
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