Diodes Incorporated FS1ME_HF
- Part No.:
- FS1ME_HF
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-219AA
- Datasheet:
-
FS1ME_HF.pdf
- Description:
- DIODE GEN PURP 1KV 1A F1A
- Quantity:
- Payment:

- Shipping:

Inventory:5,437
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Product details
Overview
FS1ME from Diodes Incorporated is a 1.0A surface-mount standard recovery rectifier in DO-219AA package, rated for 1000V peak repetitive reverse voltage, 1.1V max forward voltage at 1A/25°C, and 5µA max reverse leakage at 1000V/25°C; used in AC-to-DC power conversion stages of wall adapters and USB-C chargers.
For engineers reviewing the FS1ME datasheet, FS1ME pinout, FS1ME application, or FS1ME equivalent, key selection criteria include VRRM derating for capacitive loads, thermal resistance (RθJA = 152°C/W), reverse recovery time (tRR ≤ 1600 ns), and compliance with AEC-Q200-qualified manufacturing for automotive-grade reliability.
Technical Context
This standard recovery rectifier operates in single-phase, half-wave configurations with 60Hz resistive or inductive loads; capacitive loads require 20% IO derating. It features glass-passivated die construction for enhanced reliability and moisture resistance (J-STD-020 Level 1).
Thermal performance is defined by RθJC = 53°C/W and RθJL = 45°C/W, enabling efficient heat transfer to PCB copper pads or leads. Reverse recovery time (1000–1600 ns) and low leakage (5 µA @ 1000V/25°C) support stable operation in high-voltage, low-power-loss applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - Withstands up to 1000V reverse bias without breakdown in repetitive AC line applications |
| IO | 1.0 A - Continuous average forward current rating at +25°C ambient, derated for higher temperatures |
| VF Max | 1.1 V @ 1A/25°C - Low conduction loss enables >85% efficiency in compact 5–12V output chargers |
| IR Max | 5 µA @ 1000V/25°C - Minimal leakage preserves standby power budget in energy-efficient designs |
| tRR | 1600 ns max - Standard recovery speed suitable for 50/60Hz and low-frequency SMPS front-end rectification |
| RθJA | 152 °C/W - Requires ≥5 mm × 7 mm copper pad for safe operation at full load in FR-4 PCBs |
| IFSM | 30 A @ 8.3 ms - Withstands typical AC line surge events without failure |
Pinout & Package
Package: DO-219AA - ultra-low-profile (max height 3.90 mm), green molded plastic case (UL 94V-0), matte tin-plated copper lead-frame, cathode band polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC input or transformer secondary; must handle 30A surge during cold-start |
| Cathode | Forward current exit / DC output node | Connected to bulk capacitor; marked by visible cathode band on package top surface |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile DO-219AA package | Height ≤ 3.90 mm enables use in space-constrained USB-C PD adapters and slim wall plugs |
| Glass-passivated die | Enhances humidity resistance and long-term stability under thermal cycling (−55°C to +150°C) |
| Lead-free & halogen-free | Meets RoHS 3 (2015/863/EU) and IATF 16949 manufacturing requirements for automotive supply chains |
| Low VF and IR | Reduces conduction loss and standby power dissipation in Class VI-compliant charger designs |
Applications
| USB-C Wall Adapter | Industrial AC-DC Module |
|---|---|
Use Scenario: Primary-side rectification in universal-input (90–264VAC) 20–65W USB-C PD adapters. IC Role / Device Role / Timing Role: Standard recovery diode converting AC line to pulsating DC before bulk capacitor and controller IC. Use Value: 1000V VRRM ensures margin against 264VAC × √2 + transients; 1.1V VF minimizes heat in sealed enclosures. | Use Scenario: Input rectification in DIN-rail mounted 24V/48V industrial power supplies. IC Role / Device Role / Timing Role: Half-wave rectifier in ruggedized, fanless AC-DC converters operating continuously at −40°C to +70°C ambient. Use Value: J-STD-020 Level 1 moisture sensitivity and −55°C to +150°C TJ range support extended field life in harsh environments. |
| Automotive Accessory Charger | Smart Home Power Supply |
Use Scenario: 12V cigarette-lighter adapter powering dashcams or tire-pressure monitors. IC Role / Device Role / Timing Role: Line rectifier handling load dump transients and wide ambient temperature swings. Use Value: AEC-Q200-capable manufacturing and 30A IFSM ensure robustness against ISO 7637-2 pulse 5a/b surges. | Use Scenario: Compact AC-DC converter inside Wi-Fi smart plugs and LED driver modules. IC Role / Device Role / Timing Role: Bridge or half-wave rectifier feeding constant-current LED drivers or low-power MCU rails. Use Value: 0.016g weight and DO-219AA footprint reduce board area by >30% vs. SMA packages while maintaining 1000V rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06 | TO-277A package (higher profile), 600V VRRM, 1.05V VF @ 1A/25°C | Limited to ≤265VAC systems; unsuitable for 1000V line-surge margin requirements | Select only if lower cost and 600V rating suffice and board height allows TO-277A |
| SB1100 | SMA package, 1000V VRRM, 1.1V VF @ 1A/25°C, but RθJA = 180°C/W and no AEC-Q200 qualification | Higher thermal resistance demands larger copper area; not approved for automotive PPAP programs | Acceptable for cost-sensitive consumer products where qualification and thermal headroom are non-critical |
Compared with STTH1R06 and SB1100, FS1ME uniquely combines 1000V rating, DO-219AA low-profile packaging, J-STD-020 Level 1 moisture resistance, and IATF 16949 manufacturing-making it optimal for space-constrained, automotive-qualified, and energy-efficient AC-DC designs.
Availability
FS1ME is available at Aetrix Electronics and suitable for USB-C wall adapters, industrial AC-DC modules, automotive accessory chargers, and smart home power supplies requiring stable component supply across multi-year production cycles.
Supply support for FS1ME 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 FS1ME belongs to Diodes' standard recovery rectifier product line, engineered for high-voltage, low-leakage, and thermally efficient AC-DC front-end conversion in compact, reliable power supplies.
FAQ
What is the maximum allowable junction temperature for FS1ME?
The FS1ME has an operating junction temperature range of −55°C to +150°C. Its absolute maximum TJ is +150°C; sustained operation above this limit risks irreversible degradation of the glass-passivated junction and increased IR. Derating curves in DS42843 show IO drops to ~0.65A at TJ = +125°C on standard FR-4 with 5 mm × 7 mm copper pad.
Is FS1ME suitable for use in bridge rectifier configurations?
Yes, FS1ME can be used in discrete bridge rectifiers, but each device must be individually rated for the full peak inverse voltage (PIV) across its terminals. In a full-wave bridge with 264VAC input, PIV per diode reaches ~373V; FS1ME's 1000V VRRM provides ample margin. Ensure symmetrical layout and thermal coupling to avoid current imbalance.
Does FS1ME have automotive qualification?
FS1ME itself is not AEC-Q101 qualified, but it is manufactured in IATF 16949-certified facilities and supports PPAP documentation. For automotive applications requiring formal AEC-Q101 qualification, Diodes offers the pin-compatible AEC-Q101 version FS1MEQ, which undergoes stress testing per AEC-Q101 Rev D and includes full change control.
How does FS1ME's reverse recovery time affect EMI in charger designs?
With tRR of 1000–1600 ns, FS1ME generates moderate switching noise during turn-off-lower than fast recovery diodes but higher than Schottkys. In 50/60Hz rectification, this causes negligible EMI; however, in high-frequency flyback PFC stages, it may increase snubber losses and conducted emissions. Use RC snubbers and proper layout to contain noise when operating near 100 kHz switching frequencies.
FS1ME_HF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- FS
- 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):
- 1.6 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:
- F1A (DO219AA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
FS1ME_HF FAQ
1.How can I place an order for FS1ME_HF through Aetrix?
Please submit a Request for Quotation (RFQ) for FS1ME_HF 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 FS1ME_HF reliable?
The price and inventory of FS1ME_HF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FS1ME_HF is usually 5 days.
3.What payment methods are accepted for FS1ME_HF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FS1ME_HF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FS1ME_HF?
FS1ME_HF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FS1ME_HF 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 FS1ME_HF?
For technical support, including FS1ME_HF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FS1ME_HF requirements.
6.How does Aetrix verify that FS1ME_HF is sourced from the original manufacturer or authorized distributors?
All FS1ME_HF 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 FS1ME_HF meets industry standards.
7.What is the process for return or replacement of FS1ME_HF?
All FS1ME_HF units undergo pre-shipment inspection (PSI). If there is an issue with FS1ME_HF, 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 FS1ME_HF part is unused and in its original packaging.
Return procedure for FS1ME_HF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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