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Vishay General Semiconductor - Diodes Division AR1FD-M3/H
- Part No.:
- AR1FD-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- DO-219AB
- Datasheet:
-
AR1FD-M3/H.pdf
- Description:
- DIODE AVALANCHE 200V 1A DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:18,000
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Product details
Overview
AR1FD-M3/H from Vishay General Semiconductor is a surface-mount fast avalanche rectifier in SMF (DO-219AB) package, rated for 200 V repetitive peak reverse voltage (VRRM), 1.0 A average forward current (IF(AV)), and 140 ns reverse recovery time (trr). It features glass-passivated junction, AEC-Q101 qualification, and low 1.25 V forward voltage at 1.0 A and 25 °C - optimized for automotive freewheeling and high-frequency DC/DC converter output rectification.
For engineers reviewing the AR1FD-M3/H datasheet, AR1FD-M3/H pinout, AR1FD-M3/H application, or AR1FD-M3/H equivalent, key selection criteria include its 20 mJ non-repetitive avalanche energy rating, 175 °C maximum junction temperature, MSL Level 1 moisture sensitivity, and compatibility with wave/reflow soldering per J-STD-002 and JESD 22-B102.
Technical Context
This device operates as a single-diode, unidirectional avalanche-rated rectifier with cathode marked by color band. Its fast switching (trr = 140 ns) and low IR (1 μA @ 25 °C) support high-efficiency power conversion in constrained thermal environments.
The SMF package delivers low thermal resistance (RθJA = 130 °C/W, RθJM = 20 °C/W) and meets UL 94 V-0 flammability. Matte tin-plated leads pass JESD 201 Class 2 whisker testing and support automated placement on PCBs with recommended 2 oz. copper pad area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - maximum repetitive reverse blocking voltage before avalanche conduction begins |
| IF(AV) | 1.0 A - continuous average forward current under specified thermal conditions (TA = 25 °C, 2 oz. pad) |
| trr | 140 ns - time to recover from reverse conduction, critical for minimizing switching losses in 100–500 kHz converters |
| VF @ IF = 1 A, 25 °C | 1.25 V - forward voltage drop determining conduction loss and thermal load at nominal operating point |
| EAS | 20 mJ - non-repetitive avalanche energy handling capability, enabling robustness against inductive turn-off transients |
| TJ(max) | 175 °C - maximum allowable junction temperature, supporting operation in under-hood automotive environments |
| CJ @ 4 V, 1 MHz | 12.6 pF - junction capacitance influencing high-frequency noise and EMI behavior in snubberless designs |
Pinout & Package
Package: SMF (DO-219AB), low-profile surface-mount case with cathode indicated by color band; compatible with SOD-123W footprint but dimensionally distinct (3.9 mm × 1.9 mm × 1.08 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to source-side of inductive load or transformer secondary; must withstand IFSM = 30 A surge |
| Cathode | Forward current exit / reverse-blocking terminal | Marked with color band; connects to output rail or ground return; carries full load current and absorbs avalanche energy |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including engine control modules and ADAS power supplies |
| Glass passivated junction | Ensures long-term reliability and stable leakage current (IR) across -55 °C to +175 °C operating range |
| MSL Level 1 (260 °C peak) | Enables standard reflow assembly without baking or special handling prior to mounting |
| Halogen-free & RoHS-compliant | Meets global environmental compliance requirements for industrial and automotive end equipment |
| Wave and reflow solderable | Compatible with both selective wave and Pb-free reflow profiles per J-STD-020 |
Applications
| Automotive Engine Control Unit (ECU) | Industrial DC/DC Converter Output Stage |
|---|---|
Use Scenario: Freewheeling path for fuel injector driver MOSFETs during turn-off. IC Role / Device Role / Timing Role: Fast-recovery avalanche rectifier absorbing inductive kickback energy. Use Value: 20 mJ EAS rating prevents failure during repeated 30 A transient events; 140 ns trr minimizes cross-conduction loss. |
Use Scenario: Secondary-side rectification in isolated 48 V → 12 V telecom DC/DC module. IC Role / Device Role / Timing Role: Unidirectional power delivery diode in synchronous or quasi-resonant topology. Use Value: 1.25 V VF at 1 A reduces conduction loss vs. Schottky alternatives; 175 °C TJ(max) supports compact heatsink-less design. |
| Consumer AC-DC Adapter Secondary | Telecom Power Supply Snubberless Clamp |
Use Scenario: Output rectification in 15 W USB-C PD adapter with 65 kHz flyback controller. IC Role / Device Role / Timing Role: Primary rectifier converting transformer secondary AC to regulated DC output. Use Value: 130 °C/W RθJA enables thermal management on 2-layer PCB; low 1 μA IR improves no-load efficiency. |
Use Scenario: Clamp diode across primary-side MOSFET in active clamp forward converter. IC Role / Device Role / Timing Role: Avalanche-rated transient suppressor redirecting stored inductive energy. Use Value: Controlled avalanche behavior with defined EAS eliminates need for external TVS; 12.6 pF CJ limits capacitive loading on gate drive. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast avalanche rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06S | 600 V VRRM, 1.05 V VF @ 1 A, 75 ns trr, TO-277 package (larger footprint) | Higher voltage rating suits 48 V bus systems; faster trr reduces switching loss but increases EMI risk | Prefer when higher VRRM margin or lower VF at elevated temperature is required; verify PCB layout change for TO-277 |
| ON Semiconductor NRVB120 | 200 V VRRM, 1.1 V VF @ 1 A, 150 ns trr, SOD-123FL package, not AEC-Q101 qualified | Lower VF improves efficiency at high ambient; lacks automotive qualification and lower EAS (15 mJ) | Acceptable for consumer-grade power supplies where AEC-Q101 and 20 mJ EAS are not mandated |
Compared with STTH1L06S and NRVB120, AR1FD-M3/H uniquely balances 200 V rating, AEC-Q101 compliance, 20 mJ avalanche robustness, and DO-219AB footprint - making it optimal for space-constrained automotive and industrial converters requiring proven transient resilience without layout redesign.
Availability
AR1FD-M3/H is available at Aetrix Electronics and suitable for automotive engine control units, industrial DC/DC converters, and telecom power supplies requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for AR1FD-M3/H 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, power efficiency, and automotive-grade validation.
The AR1FD-M3/H belongs to Vishay's eSMP® Series of surface-mount fast avalanche rectifiers, engineered specifically for high-reliability power conversion in automotive, industrial, and telecom applications where surge resilience and thermal stability are critical.
FAQ
What is the maximum junction temperature rating for AR1FD-M3/H?
The AR1FD-M3/H has a maximum junction temperature (TJ(max)) of +175 °C, enabling reliable operation in under-hood automotive environments and high-ambient industrial power supplies. This rating is validated per AEC-Q101 stress testing and supported by its 20 °C/W junction-to-mount thermal resistance. The AR1FD-M3/H must be mounted on a PCB with recommended 2 oz. copper pad area to achieve thermal performance consistent with datasheet derating curves.
Is AR1FD-M3/H qualified for automotive applications?
Yes, AR1FD-M3/H is AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code suffix "HM3" (base P/NHM3). The "M3/H" suffix denotes halogen-free, RoHS-compliant construction with MSL Level 1 rating and matte tin-plated leads passing JESD 201 Class 2 whisker testing - all required for automotive power semiconductor qualification. AR1FD-M3/H is intended for use in engine control, body electronics, and ADAS power stages.
What does the "M3/H" suffix mean in AR1FD-M3/H?
The "M3" suffix indicates halogen-free, RoHS-compliant construction meeting Vishay's material categorization per doc#99912; "H" specifies packaging in 7-inch plastic tape and reel with 3000 units per reel. The AR1FD-M3/H is identical in electrical and thermal specifications to AR1FDHM3/H but uses the industry-standard "M3/H" ordering convention rather than the automotive-specific "HM3/H" prefix. Both share identical SMF (DO-219AB) package and AEC-Q101 qualification.
How does AR1FD-M3/H compare to standard fast recovery diodes in terms of avalanche capability?
Unlike standard fast recovery diodes, AR1FD-M3/H is specifically characterized for non-repetitive avalanche energy (EAS = 20 mJ at IAS = 1.0 A), allowing it to safely absorb inductive turn-off transients without failure. This is verified per AEC-Q101 test condition E2, distinguishing AR1FD-M3/H from generic FRDs that lack defined avalanche ratings. Its controlled avalanche behavior makes AR1FD-M3/H suitable for freewheeling and clamp roles where voltage spikes exceed VRRM.
What is the reverse recovery time (trr) of AR1FD-M3/H and how is it measured?
The AR1FD-M3/H has a typical reverse recovery time (trr) of 140 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per JEDEC standards. This value reflects the time required for minority carriers to clear after forward conduction ceases, directly impacting switching loss in high-frequency converters. The AR1FD-M3/H's trr is stable across temperature and supports efficient operation up to 500 kHz in hard-switched topologies.
AR1FD-M3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- DO-219AB
- 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:
- 12.6pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
- Operating Temperature - Junction:
- -55°C ~ 175°C
AR1FD-M3/H FAQ
1.How can I place an order for AR1FD-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for AR1FD-M3/H 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 AR1FD-M3/H reliable?
The price and inventory of AR1FD-M3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AR1FD-M3/H is usually 5 days.
3.What payment methods are accepted for AR1FD-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AR1FD-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AR1FD-M3/H?
AR1FD-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AR1FD-M3/H 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 AR1FD-M3/H?
For technical support, including AR1FD-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AR1FD-M3/H requirements.
6.How does Aetrix verify that AR1FD-M3/H is sourced from the original manufacturer or authorized distributors?
All AR1FD-M3/H 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 AR1FD-M3/H meets industry standards.
7.What is the process for return or replacement of AR1FD-M3/H?
All AR1FD-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with AR1FD-M3/H, 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 AR1FD-M3/H part is unused and in its original packaging.
Return procedure for AR1FD-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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