My Inquiry
My Account
Taiwan Semiconductor Corporation RS1DFSH
- Part No.:
- RS1DFSH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
RS1DFSH.pdf
- Description:
- DIODE GEN PURP 200V 1A SOD128
- Quantity:
- Payment:
- Shipping:
Inventory:28,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
RS1DFSH from Taiwan Semiconductor is a 1A, 200V fast recovery surface-mount rectifier in SOD-128 package, featuring AEC-Q101 qualification, glass passivated junction, and 150 ns reverse recovery time. It serves as a freewheeling or snubber diode in automotive DC/DC converters where low forward voltage (1.01 V @ 1A, 25°C) and high junction temperature capability (175°C) are critical.
For engineers reviewing the RS1DFSH datasheet, RS1DFSH pinout, RS1DFSH application, or RS1DFSH equivalent, key selection criteria include its 200V VRRM, 30A IFSM, 1.01V forward drop at rated current, AEC-Q101 compliance, and SOD-128 thermal performance (RθJL = 29°C/W).
Technical Context
The RS1DFSH implements a single-die, planar fast recovery rectifier structure with glass passivation for robustness against moisture and mechanical stress. Its 150 ns trr and low CJ (7 pF) support high-frequency switching in snubber and freewheeling roles without excessive ringing or losses.
Designed for automotive-grade reliability, it meets JESD201 Class 2 whisker resistance, J-STD-020 Level 1 moisture sensitivity, and UL 94V-0 molding compound requirements - all verified under AEC-Q101 stress testing conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse voltage before breakdown; defines safe operating range in 24V/48V automotive systems. |
| IF | 1 A - Continuous average forward current; supports compact power stage designs with minimal heatsinking. |
| IFSM | 30 A - Non-repetitive surge current handling; enables robustness against load dump or inductive kick events. |
| trr | 150 ns - Reverse recovery time; minimizes switching loss and EMI in 100–500 kHz DC/DC topologies. |
| TJ(max) | 175 °C - Maximum junction temperature; allows operation in under-hood environments without derating. |
| RθJL | 29 °C/W - Junction-to-lead thermal resistance; enables direct PCB copper pad conduction for efficient heat transfer. |
| VF @ 1A, 25°C | 1.01 V - Forward voltage drop; determines conduction loss (1.01 W per diode at full load) and thermal design margin. |
Pinout & Package
SOD-128 low-profile surface-mount package with cathode-indicated band; 4.4 mm × 2.7 mm footprint, 1.2 mm height, matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to switch node or inductor output; must handle 30A surge without bond wire failure. |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to ground or low-side reference; withstands 200V reverse bias continuously. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and UHAST - eliminates need for additional qualification testing. |
| Glass passivated junction | Prevents moisture ingress and surface leakage at high humidity; maintains IR ≤ 5 µA up to 125°C. |
| Low profile SOD-128 package | 1.2 mm max height enables placement under shields or in space-constrained modules like ADAS ECUs. |
| J-STD-020 Level 1 MSL | Zero bake requirement before reflow; supports standard SMT assembly without moisture-sensitive handling protocols. |
| UL 94V-0 molding compound | Self-extinguishing plastic housing prevents flame propagation in battery management or lighting modules. |
Applications
| Automotive DC/DC Converters | Snubber Circuits |
|---|---|
Use Scenario: Step-down conversion in 12V→3.3V/5V supplies for infotainment and body control modules. IC Role / Device Role: Freewheeling diode in synchronous or quasi-resonant buck topologies. Use Value: 150 ns trr reduces switching loss and EMI vs. standard recovery diodes; 175°C rating avoids thermal shutdown during peak load. | Use Scenario: RCD clamp network across MOSFETs in flyback or LLC converters. IC Role / Device Role: Fast-recovery clamping diode absorbing inductive energy spikes. Use Value: Low CJ (7 pF) minimizes capacitive loading on gate drive; 30A IFSM handles transient overvoltage surges reliably. |
| Automotive Lighting Drivers | Industrial Power Supplies |
Use Scenario: LED driver output stage in headlamp modules with PWM dimming and thermal foldback. IC Role / Device Role: Output rectifier in boost or SEPIC LED drivers. Use Value: AEC-Q101 qualification ensures long-term reliability under vibration and thermal cycling; 1.01V VF improves efficiency at 1A LED string current. | Use Scenario: Auxiliary power supply in PLC or motor drive controllers requiring stable 5V/12V rails. IC Role / Device Role: Input bridge or output rectifier in isolated flyback or forward converters. Use Value: RθJL = 29°C/W enables direct thermal coupling to 5mm×5mm Cu pad, reducing board-level thermal resistance by >40% vs. SO-8. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R02FL | Same 200V VRRM, 1A IF, but TO-277 package (higher RθJA = 110°C/W); trr = 120 ns. | Higher thermal resistance limits power density; not AEC-Q101 qualified. | Preferred only when TO-277 mechanical fit is required and automotive qualification is unnecessary. |
| ON Semi MUR120RLG | 200V VRRM, 1A IF, DO-41 through-hole; trr = 75 ns, but no AEC-Q101 or MSL Level 1 rating. | Through-hole mounting incompatible with automated SMT lines; lacks automotive reliability validation. | Only suitable for non-automotive industrial prototypes where manual assembly and lower cost outweigh reliability needs. |
Compared with STTH1R02FL and MUR120RLG, RS1DFSH uniquely combines AEC-Q101 qualification, SOD-128 low-profile packaging, 150 ns trr, and J-STD-020 Level 1 handling - making it the only choice for production automotive SMT power stages requiring zero-bake assembly and under-hood thermal resilience.
Availability
RS1DFSH is available at Aetrix Electronics and suitable for automotive DC/DC converters, snubber networks, and LED lighting drivers requiring stable component supply, AEC-Q101 compliance, and SMT-compatible thermal performance.
Supply support for RS1DFSH 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and consumer markets since 1979.
The RS1DFSH belongs to TSC's AEC-Q101-qualified fast recovery rectifier product line, engineered specifically for high-reliability automotive power conversion where thermal resilience, fast switching, and SMT manufacturability are mandatory.
FAQ
What is the maximum junction temperature rating for RS1DFSH?
The RS1DFSH has a maximum junction temperature (TJ(max)) of +175°C, validated per AEC-Q101 test conditions. This rating allows continuous operation in under-hood automotive environments without thermal derating below 1A, provided the PCB copper pad area meets the 5mm × 5mm thermal test condition specified in the datasheet.
Is RS1DFSH AEC-Q101 qualified?
Yes, RS1DFSH is fully AEC-Q101 qualified. The qualification includes stress tests such as high-temperature reverse bias (HTRB), temperature cycling, and unbiased highly accelerated stress test (UHAST), confirming suitability for automotive power applications including engine control units and ADAS modules.
What is the reverse recovery time (trr) of RS1DFSH?
The RS1DFSH has a reverse recovery time (trr) of 150 ns, measured at IF = 0.5A, IR = 1.0A, and Irr = 0.25A. This value is confirmed in the "ELECTRICAL SPECIFICATIONS" table on page 2 of the B2304 datasheet revision and applies exclusively to the RS1DFSH variant.
Which package does RS1DFSH use, and what are its key mechanical features?
RS1DFSH uses the SOD-128 surface-mount package (JEDEC DO-221AD variation). Key mechanical features include a 4.4 mm × 2.7 mm footprint, 1.2 mm max height, matte tin-plated leads compliant with J-STD-002, and UL 94V-0 flammability-rated molding compound - all documented in the "MECHANICAL DATA" section of the datasheet.
Does RS1DFSH have a defined moisture sensitivity level (MSL)?
Yes, RS1DFSH is rated at Moisture Sensitivity Level 1 per J-STD-020, meaning it has unlimited floor life and requires no baking prior to reflow soldering. This is explicitly stated in the "FEATURES" list and confirmed in the "MECHANICAL DATA" section of the official datasheet.
RS1DFSH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-128
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 7pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-128
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS1DFSH FAQ
1.How can I place an order for RS1DFSH through Aetrix?
Please submit a Request for Quotation (RFQ) for RS1DFSH 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 RS1DFSH reliable?
The price and inventory of RS1DFSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1DFSH is usually 5 days.
3.What payment methods are accepted for RS1DFSH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1DFSH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS1DFSH?
RS1DFSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS1DFSH 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 RS1DFSH?
For technical support, including RS1DFSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1DFSH requirements.
6.How does Aetrix verify that RS1DFSH is sourced from the original manufacturer or authorized distributors?
All RS1DFSH 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 RS1DFSH meets industry standards.
7.What is the process for return or replacement of RS1DFSH?
All RS1DFSH units undergo pre-shipment inspection (PSI). If there is an issue with RS1DFSH, 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 RS1DFSH part is unused and in its original packaging.
Return procedure for RS1DFSH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RS1DFSH 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
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
