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Taiwan Semiconductor Corporation RS2BH
- Part No.:
- RS2BH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
RS2BH.pdf
- Description:
- 150NS, 2A, 100V, FAST RECOVERY R
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
RS2BH from Taiwan Semiconductor is a 2 A, 100 V fast recovery surface-mount rectifier in DO-214AA (SMB) package, featuring 50 µA max reverse leakage at 125°C, 1.3 V max forward voltage at 2 A, and 150 ns reverse recovery time. It serves as a freewheeling or snubber diode in automotive DC-DC converters and LED lighting circuits.
For engineers reviewing the RS2BH datasheet, RS2BH pinout, RS2BH application, or RS2BH equivalent, key selection criteria include its AEC-Q101 qualification, 175°C maximum junction temperature, DO-214AA mechanical compatibility, and verified 150 ns trr performance under IF = 0.5 A / IR = 1.0 A test conditions.
Technical Context
The RS2BH employs a glass-passivated single-die silicon junction optimized for fast switching and low conduction loss. Its thermal design supports RθJL = 18°C/W and RθJA = 55°C/W, enabling reliable operation up to 175°C junction temperature in constrained PCB layouts.
It delivers stable reverse blocking up to 100 V VRRM with <5 µA IR at 25°C and <50 µA at 125°C, and exhibits 50 pF junction capacitance at 1 MHz / 4 V - critical for high-frequency snubber and flyback clamp performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - rated repetitive peak reverse voltage; defines maximum DC or AC peak voltage the device blocks reliably in circuit |
| IF | 2 A - continuous average forward current; determines steady-state power handling in rectification paths |
| trr | 150 ns - measured reverse recovery time at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables efficient high-frequency switching in DC-DC topologies |
| VF | ≤1.3 V at 2 A, 25°C - forward voltage drop directly impacts conduction loss and thermal rise in power stages |
| IR | ≤5 µA at 25°C, ≤50 µA at 125°C - low leakage preserves efficiency in high-temperature automotive environments |
| RθJL | 18°C/W - junction-to-lead thermal resistance; supports direct heat transfer to PCB copper or heatsink via cathode lead |
Pinout & Package
DO-214AA (SMB) surface-mount package with molded plastic body, matte tin-plated leads, and cathode band polarity indicator. Weight: 0.090 g. Complies with UL 94V-0 and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of load or switch node; must withstand surge IFSM = 50 A |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; serves as primary thermal path (RθJL = 18°C/W) and connects to ground or return rail |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test requirements |
| Glass passivated junction | Enhances long-term stability and moisture resistance vs. epoxy-passivated alternatives; supports MSL Level 1 handling |
| Fast recovery (150 ns) | Reduces switching losses and EMI in 100–500 kHz DC-DC converters compared to standard rectifiers (>500 ns) |
| Halogen-free & RoHS compliant | Meets global environmental compliance mandates without compromising thermal or electrical performance |
Applications
| Automotive DC-DC Converters | LED Headlamp Drivers |
|---|---|
Use Scenario: Step-down buck converter supplying 12 V to 5 V for infotainment ECUs in passenger vehicles. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or non-synchronous buck topology; conducts during low-side switch off-time. Use Value: 150 ns trr minimizes reverse recovery charge (Qrr) and associated switching loss, improving efficiency at 250 kHz switching frequency. | Use Scenario: Constant-current LED driver for adaptive front-lighting systems (AFS) with PWM dimming. IC Role / Device Role / Timing Role: Snubber diode across MOSFET switch to clamp inductive voltage spikes during turn-off. Use Value: 100 V VRRM and 50 A IFSM safely absorb energy from transformer leakage inductance without avalanche stress. |
| Industrial Power Supplies | Car Interior Lighting |
Use Scenario: Auxiliary 24 V supply in commercial vehicle telematics gateway with wide ambient temperature range. IC Role / Device Role / Timing Role: Output rectifier in isolated flyback converter; handles continuous 2 A load with minimal derating. Use Value: 175°C TJMAX and <50 µA IR at 125°C ensure stable operation without thermal runaway in sealed enclosures. | Use Scenario: Linear LED string driver for dashboard backlighting with battery input (9–16 V). IC Role / Device Role / Timing Role: Reverse polarity protection diode in input stage; blocks negative transients during jump-start events. Use Value: Glass passivation and AEC-Q101 qualification guarantee robustness against automotive load dump and cold-crank pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R01 | Same DO-214AA package, 100 V VRRM, but trr = 200 ns (max); VF = 1.25 V (typ) | Slightly higher switching loss in >200 kHz designs due to longer trr | Acceptable where layout allows minor efficiency trade-off and STTH2R01 is preferred in existing BOMs |
| ON Semi MUR210E | DO-214AC (SMA) package, smaller footprint; 100 V VRRM, trr = 75 ns (typ), VF = 1.2 V (max) | Lower profile but reduced thermal mass; RθJA ≈ 75°C/W limits power density vs. RS2BH's 55°C/W | Preferred for space-constrained boards where peak current <1.5 A and ambient temp <85°C |
Compared with STTH2R01 and MUR210E, the RS2BH offers superior thermal performance (RθJA = 55°C/W) and automotive qualification, making it optimal for high-reliability 2 A freewheeling or snubber roles where board-level heat dissipation is limited.
Availability
RS2BH is available at Aetrix Electronics and suitable for automotive DC-DC converters, LED headlamp drivers, and industrial power supplies requiring stable component supply with full traceability and AEC-Q101 assurance.
Supply support for RS2BH 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 RS2xH series was developed specifically for AEC-Q101-compliant surface-mount rectification in automotive power systems, emphasizing fast recovery, thermal robustness, and process consistency across voltage grades.
FAQ
What is the maximum junction temperature rating for RS2BH?
The RS2BH has a maximum junction temperature (TJMAX) of +175°C, validated per AEC-Q101 stress testing. This allows uninterrupted operation in under-hood automotive environments where ambient temperatures exceed 105°C, provided thermal design maintains junction temperature below this limit. The RS2BH's RθJL = 18°C/W supports effective heat transfer through the cathode lead to PCB copper.
Is RS2BH pin-compatible with other devices in the RS2xH family?
Yes, all RS2xH devices-including RS2AH, RS2BH, RS2DH, up to RS2MH-share identical DO-214AA (SMB) package dimensions, pinout, and solder pad layout. The only difference is VRRM rating (50 V to 1000 V), so RS2BH can be substituted within the same footprint when 100 V blocking is sufficient, without PCB redesign.
Does RS2BH meet automotive reliability standards?
Yes, RS2BH is AEC-Q101 qualified, meaning it has passed rigorous stress tests including high-temperature reverse bias (HTRB), temperature cycling, and unbiased highly accelerated stress testing (UHAST). This certification confirms suitability for automotive power electronics such as body control modules and lighting drivers where long-term field reliability is mandatory.
What is the reverse recovery time specification for RS2BH?
The RS2BH reverse recovery time (trr) is specified as ≤150 ns under standardized test conditions: IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A, with 1 MHz measurement frequency. This value is confirmed in the official Taiwan Semiconductor datasheet Version B2304 and is critical for minimizing switching loss in high-frequency DC-DC converters using the RS2BH as a freewheeling diode.
Can RS2BH be used in snubber circuits?
Yes, RS2BH is explicitly recommended for snubber applications per its official documentation. Its 100 V VRRM, 50 A IFSM, and 150 ns trr enable effective clamping of voltage spikes across switching MOSFETs in flyback and forward converters. The glass-passivated junction ensures stable performance under repetitive transient stress, making RS2BH suitable for automotive snubbers exposed to load dump events.
RS2BH 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):
- 100 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 @ 100 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
RS2BH FAQ
1.How can I place an order for RS2BH through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2BH 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 RS2BH reliable?
The price and inventory of RS2BH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2BH is usually 5 days.
3.What payment methods are accepted for RS2BH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2BH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2BH?
RS2BH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2BH 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 RS2BH?
For technical support, including RS2BH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2BH requirements.
6.How does Aetrix verify that RS2BH is sourced from the original manufacturer or authorized distributors?
All RS2BH 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 RS2BH meets industry standards.
7.What is the process for return or replacement of RS2BH?
All RS2BH units undergo pre-shipment inspection (PSI). If there is an issue with RS2BH, 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 RS2BH part is unused and in its original packaging.
Return procedure for RS2BH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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