My Inquiry
My Account
Diodes Incorporated FS1MED-7
- Part No.:
- FS1MED-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-219AA
- Datasheet:
-
FS1MED-7.pdf
- Description:
- DIODE GEN PURP 1KV 1A DO219AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,380
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
FS1MED-7 from Diodes Incorporated is a 1.0A, 1000V surface-mount standard recovery rectifier in DO-219AA package, designed for AC-to-DC rectification in compact power adapters and discrete bridge configurations for LED lighting. It delivers VF ≤ 1.1 V at 1 A (125°C), IR ≤ 5 µA at 1000 V (25°C), and tRR = 500–1000 ns, enabling low-loss snubber operation in quick-charger adapters.
For engineers reviewing the FS1MED-7 datasheet, FS1MED-7 pinout, FS1MED-7 application, or FS1MED-7 equivalent, key selection criteria include its 1000 V VRRM rating, controlled reverse recovery time for EMI-sensitive quick-charge designs, low-profile DO-219AA footprint compatibility with high-density PCB layouts, and RoHS-compliant matte tin terminals suitable for lead-free reflow.
Technical Context
This standard recovery rectifier uses glass-passivated silicon die to achieve stable reverse blocking up to 1000 V and low leakage (<5 µA at 25°C). Its 500–1000 ns reverse recovery time balances switching loss and EMI performance-faster than general-purpose rectifiers but slower than ultrafast or Schottky types-making it suited for 50/60 Hz and low-kHz line-frequency rectification.
The DO-219AA package provides RθJA = 50 °C/W and RθJL = 18 °C/W, supporting thermal management in space-constrained adapter PCBs. Its cathode-band polarity marking and 0.016 g mass align with automated SMT assembly requirements for high-volume LED driver and charger production.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - Withstands peak reverse voltage in universal-input AC/DC adapters without breakdown |
| IO | 1.0 A - Continuous average forward current rating at 25°C ambient, derated for higher temperatures |
| VF Max | 1.1 V @ 1 A, 125°C - Limits conduction loss to ≤1.1 W per diode in bridge configurations |
| IR Max | 5 µA @ 1000 V, 25°C - Ensures minimal standby power loss in always-on quick-charge adapter outputs |
| tRR | 500–1000 ns - Reduces switching-induced voltage spikes versus general-purpose rectifiers, easing snubber design |
| RθJL | 18 °C/W - Enables direct heat transfer to PCB copper pads, critical for thermally dense LED lighting modules |
Pinout & Package
Package: DO-219AA - Low-profile (max height 3.9 mm), molded green plastic case with UL 94V-0 rating, matte tin-plated copper lead-frame, cathode band polarity marking, and 0.016 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry node | Connected to AC input or transformer secondary in half-wave rectifier; ties to adjacent diode anode in discrete bridge |
| Cathode | Forward current exit node | Connected to output capacitor or load; marked by visible cathode band on package body |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Ensures long-term reliability under humidity and thermal cycling in consumer-grade adapters and LED drivers |
| Low forward voltage (VF ≤ 1.1 V) | Reduces conduction loss by ~15% vs. comparable 1A rectifiers, improving efficiency in 5–20W quick-charge adapters |
| Controlled reverse recovery (tRR = 500–1000 ns) | Minimizes voltage overshoot during turn-off, reducing snubber component count and board area in flyback-derived topologies |
| DO-219AA package | Enables 30% smaller PCB footprint than SMA packages while maintaining thermal performance via low RθJL (18 °C/W) |
Applications
| Quick-Charge Adapter Snubbers | LED Lighting Bridge Rectifiers |
|---|---|
Use Scenario: Placed across primary-side MOSFETs or transformer windings in flyback converters to suppress voltage spikes during switching transitions. IC Role / Device Role / Timing Role: Passive snubber diode absorbing inductive energy; operates at line frequency and switching harmonics up to ~100 kHz. Use Value: 500–1000 ns tRR limits ringing amplitude, allowing smaller RC snubber components and reducing BOM cost by ≥20% vs. slower rectifiers. | Use Scenario: Four FS1MED-7 units assembled as discrete full-wave bridge in low-cost, non-isolated LED tube drivers. IC Role / Device Role / Timing Role: Standard recovery rectifier conducting at 50/60 Hz mains frequency; handles surge currents up to 30 A (8.3 ms). Use Value: 1000 V VRRM supports universal 85–265 VAC input; DO-219AA footprint enables compact 12 mm × 8 mm bridge layout on FR-4 PCB. |
| Compact AC/DC Auxiliary Supplies | Industrial Control Panel Power Inputs |
Use Scenario: Half-wave rectification stage feeding linear regulators or buck controllers in auxiliary bias supplies for motor drives. IC Role / Device Role / Timing Role: Primary rectifier converting AC control voltage (e.g., 24 VAC) to DC; operates continuously at ≤1 A average current. Use Value: 5 µA max IR at 25°C ensures <125 nW standby dissipation, critical for energy-efficient control logic power rails. | Use Scenario: Input-stage rectification for 24/48 VDC industrial PLC I/O modules powered from AC mains via external transformers. IC Role / Device Role / Timing Role: Mains-frequency rectifier handling intermittent surges; rated for 30 A non-repetitive IFSM per device. Use Value: RθJL = 18 °C/W allows direct mounting to 5 mm × 7 mm copper pad, sustaining 1 A continuous current at ≤85°C board temperature. |
Availability
FS1MED-7 is available at Aetrix Electronics and suitable for quick-charge adapter snubbers, LED lighting bridge rectifiers, and compact AC/DC auxiliary supplies requiring stable component supply and consistent DO-219AA packaging.
Supply support for FS1MED-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The FS1MED-7 belongs to Diodes' standard recovery rectifier product line, engineered for cost-sensitive, space-constrained AC/DC conversion in consumer and industrial power supplies where balanced speed, voltage rating, and thermal performance are required.
FAQ
What is the maximum junction temperature for FS1MED-7?
The FS1MED-7 has an operating junction temperature range of –55°C to +150°C. Its thermal resistance junction-to-lead (RθJL) is 18 °C/W, enabling reliable operation at full 1 A current when mounted on a 5 mm × 7 mm copper pad per JESD-51 test conditions.
Is FS1MED-7 suitable for automotive applications?
No-FS1MED-7 is qualified for commercial use only (per ordering information). It is not AEC-Q101 qualified or PPAP-capable. For automotive-grade rectifiers, Diodes offers the FSA series with AEC-Q101 qualification and IATF 16949 manufacturing.
How does FS1MED-7 compare to Schottky rectifiers in quick-charge adapters?
FS1MED-7 offers 1000 V VRRM-far exceeding typical Schottky ratings (≤200 V)-making it suitable for primary-side snubbing where high reverse voltage withstand is mandatory. Its higher VF and tRR are acceptable trade-offs for this role, unlike Schottky devices which would avalanche under similar stress.
What is the moisture sensitivity level (MSL) of FS1MED-7?
FS1MED-7 has Moisture Sensitivity Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/60% RH without baking prior to SMT reflow. This eliminates pre-bake steps in standard manufacturing flow, reducing process complexity and cost.
FS1MED-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-219AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1000 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 1 µs
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1000 V
- Capacitance @ Vr, F:
- 7.6pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AA
- Operating Temperature - Junction:
- -55°C ~ 150°C
FS1MED-7 FAQ
1.How can I place an order for FS1MED-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for FS1MED-7 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 FS1MED-7 reliable?
The price and inventory of FS1MED-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FS1MED-7 is usually 5 days.
3.What payment methods are accepted for FS1MED-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FS1MED-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FS1MED-7?
FS1MED-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FS1MED-7 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 FS1MED-7?
For technical support, including FS1MED-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FS1MED-7 requirements.
6.How does Aetrix verify that FS1MED-7 is sourced from the original manufacturer or authorized distributors?
All FS1MED-7 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 FS1MED-7 meets industry standards.
7.What is the process for return or replacement of FS1MED-7?
All FS1MED-7 units undergo pre-shipment inspection (PSI). If there is an issue with FS1MED-7, 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 FS1MED-7 part is unused and in its original packaging.
Return procedure for FS1MED-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FS1MED-7 Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
