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Taiwan Semiconductor Corporation RS2DH
- Part No.:
- RS2DH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
RS2DH.pdf
- Description:
- 150NS, 2A, 200V, FAST RECOVERY R
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
RS2DH from Taiwan Semiconductor is a 2 A, 200 V fast recovery surface-mount rectifier in DO-214AA (SMB) package, featuring 150 ns reverse recovery time, 1.3 V max forward voltage at 2 A, and AEC-Q101 qualification for automotive-grade reliability in DC-DC converters and freewheeling circuits.
For engineers reviewing the RS2DH datasheet, RS2DH pinout, RS2DH application, or RS2DH equivalent, key selection criteria include repetitive peak reverse voltage (200 V), surge current rating (50 A), junction temperature range (–55°C to +175°C), thermal resistance (RθJA = 55°C/W), and RoHS/halogen-free compliance for automotive and industrial power designs.
Technical Context
The RS2DH operates as a single-die, unidirectional fast recovery rectifier with glass-passivated junction and cathode-band polarity indication. Its 150 ns trr and low VF support high-frequency switching in snubber and freewheeling topologies where conduction loss and switching loss trade-offs are critical.
Thermally, it delivers RθJL = 18°C/W to lead and RθJA = 55°C/W in standard SMB mounting, enabling 2 A continuous operation up to +125°C ambient when PCB copper area meets JEDEC recommendations. Moisture sensitivity level is J-STD-020 Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum non-repetitive reverse blocking voltage; defines safe operating limit in DC-DC flyback or boost output stages |
| IF | 2 A - Continuous average forward current at TA = 75°C; determines heatsinking requirements in 24 V automotive power rails |
| IFSM | 50 A - Peak surge current (8.3 ms half-sine); supports transient load dump immunity in vehicle electronics |
| trr | 150 ns - Reverse recovery time at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables >100 kHz switching in synchronous rectifier auxiliary paths |
| VF | 1.3 V max at IF = 2 A, TJ = 25°C - Forward conduction loss directly impacts efficiency in 12–48 V DC-DC outputs |
| RθJA | 55 °C/W - Junction-to-ambient thermal resistance on standard FR-4; sets minimum copper area for 2 A derated operation |
| Junction Temp | –55°C to +175°C - Extended temperature range enables under-hood automotive placement without derating |
Pinout & Package
DO-214AA (SMB) surface-mount package with molded plastic body (UL 94V-0), matte tin-plated leads, and cathode band marking. Polarity is unambiguous: banded end is cathode; non-banded end is anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter or ground return in freewheeling path) |
| Cathode | Forward current exit point | Connected to higher-potential node (e.g., output rail or inductor top in boost topology); marked by visible band |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power modules requiring stress testing per JESD22-A108, including temperature cycling and HTRB |
| Glass passivated junction | Enhances long-term reliability against humidity and contamination in under-hood environments |
| Fast recovery (150 ns) | Reduces switching losses and EMI generation in 100–500 kHz DC-DC converters compared to general-purpose rectifiers |
| Moisture sensitivity level 1 | Enables direct placement without baking; eliminates moisture-related popcorning during reflow |
| Halogen-free & RoHS compliant | Meets EU Directive 2011/65/EU and IPC-4101D requirements for green manufacturing and end-of-life recycling |
Applications
| DC-DC Converter | Automotive Lighting |
|---|---|
Use Scenario: Secondary-side rectification in isolated 12 V to 5 V/3.3 V flyback converters for infotainment systems. IC Role / Device Role / Timing Role: Fast recovery rectifier providing unidirectional current flow with minimal reverse recovery charge. Use Value: 150 ns trr and 1.3 V VF reduce conduction and switching losses, improving efficiency by ~2.1% over standard 1N5822 equivalents at 200 kHz. | Use Scenario: LED driver output stage in adaptive front lighting systems (AFS) with PWM dimming. IC Role / Device Role / Timing Role: Freewheeling diode across inductive LED current regulators to clamp back-EMF during PWM off-time. Use Value: AEC-Q101 qualification and –55°C to +175°C operation ensure stable performance across cold cranking and engine bay thermal extremes. |
| Snubber Network | Freewheeling Application |
Use Scenario: RC snubber across MOSFET drains in 48 V–12 V bidirectional buck-boost converters for mild hybrid vehicles. IC Role / Device Role / Timing Role: Fast recovery diode clamping voltage spikes during turn-off transitions. Use Value: Low junction capacitance (50 pF) minimizes snubber loading while 200 V VRRM accommodates 1.5× bus overvoltage margin. | Use Scenario: Inductor energy recirculation path in solenoid drivers for transmission control units (TCUs). IC Role / Device Role / Timing Role: Unidirectional freewheeling path preventing voltage overshoot when coil current is interrupted. Use Value: 50 A IFSM withstands repeated inductive kick events; glass passivation ensures robustness against vibration-induced microcracks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-2EY20 | Same DO-214AA package, 200 V VRRM, but trr = 200 ns (max) and VF = 1.35 V (max) at 2 A | Slightly higher switching loss in >250 kHz designs; suitable for cost-sensitive non-AEC-Q101 applications | Select VS-2EY20 only if AEC-Q101 is not required and layout allows minor efficiency trade-off |
| ON Semiconductor MUR220 | DO-214AC (SMA) package, 200 V VRRM, trr = 75 ns (typ), VF = 0.95 V (typ) at 2 A - but not AEC-Q101 qualified | Higher efficiency and faster switching, but lacks automotive qualification and uses smaller SMA footprint | Choose MUR220 for non-automotive high-efficiency designs where board space permits SMA and qualification is unnecessary |
Compared with VS-2EY20 and MUR220, RS2DH uniquely combines AEC-Q101 qualification, SMB package robustness, and 150 ns trr - making it optimal for automotive power supplies where reliability, thermal margin, and standardized assembly coexist.
Availability
RS2DH is available at Aetrix Electronics and suitable for automotive lighting, DC-DC converter secondary-side rectification, and freewheeling applications requiring stable component supply, long-lifecycle assurance, and traceable sourcing for Tier-1 OEM programs.
Supply support for RS2DH 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, specializing in power rectifiers, TVS diodes, and MOSFETs for industrial and automotive markets.
The RS2xH series was designed specifically for AEC-Q101-compliant automotive power conversion, emphasizing fast recovery, thermal resilience, and automated assembly compatibility in DO-214AA packaging.
FAQ
What is the maximum junction temperature rating for RS2DH?
The RS2DH has a maximum junction temperature (TJ) of +175°C and a minimum of –55°C, enabling operation in under-hood automotive environments without thermal derating below 125°C ambient. This rating is validated per AEC-Q101 stress test conditions and applies across the full VRRM range of the RS2xH family. The RS2DH maintains specified electrical parameters within this full range.
Is RS2DH compatible with lead-free reflow soldering processes?
Yes, RS2DH supports lead-free reflow soldering per J-STD-020 Level 1 moisture sensitivity classification and J-STD-002 solderability requirements. Its matte tin-plated leads achieve >95% wetting coverage on OSP and ENIG PCB finishes. The RS2DH's UL 94V-0 molding compound remains stable through peak reflow temperatures up to 260°C for 30 seconds.
Does RS2DH have a specified reverse recovery charge (Qrr) value?
No Qrr value is published in the official RS2DH datasheet (Version B2304). Only reverse recovery time (trr ≤ 150 ns) is specified under defined test conditions (IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A). Designers requiring Qrr should consult Taiwan Semiconductor's application note AN-217 or measure using a double-pulse tester calibrated to JEDEC JESD24-11.
Can RS2DH replace RS2BH in a 100 V design without layout changes?
Yes - RS2DH and RS2BH share identical DO-214AA (SMB) package dimensions, pinout, and thermal characteristics. However, RS2DH's higher 200 V VRRM provides greater voltage margin in 100 V systems subject to transients. The RS2DH's slightly higher VF (1.3 V max vs. RS2BH's 1.25 V max) may increase conduction loss by <0.1 W at 2 A, but no PCB changes are needed.
What does the "H" suffix indicate in RS2DH ordering code?
The "H" suffix in RS2DH denotes tape-and-reel packaging per Taiwan Semiconductor's standard ordering convention: RS2xH = DO-214AA (SMB), 3,000 pcs/reel. It carries no electrical or thermal meaning - all RS2xH variants (A–M) use the same die construction, package, and marking format. The RS2DH device itself is electrically and mechanically identical to other RS2xH parts except for VRRM rating.
RS2DH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 50pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS2DH FAQ
1.How can I place an order for RS2DH through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2DH 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 RS2DH reliable?
The price and inventory of RS2DH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2DH is usually 5 days.
3.What payment methods are accepted for RS2DH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2DH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2DH?
RS2DH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2DH 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 RS2DH?
For technical support, including RS2DH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2DH requirements.
6.How does Aetrix verify that RS2DH is sourced from the original manufacturer or authorized distributors?
All RS2DH 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 RS2DH meets industry standards.
7.What is the process for return or replacement of RS2DH?
All RS2DH units undergo pre-shipment inspection (PSI). If there is an issue with RS2DH, 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 RS2DH part is unused and in its original packaging.
Return procedure for RS2DH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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