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Taiwan Semiconductor Corporation RS1GLH
- Part No.:
- RS1GLH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
RS1GLH.pdf
- Description:
- 150NS, 0.8A, 400V, FAST RECOVERY
- Quantity:
- Payment:
- Shipping:
Inventory:6,017
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Product details
Overview
RS1GLH from Taiwan Semiconductor is a fast recovery surface-mount rectifier diode with 400 V repetitive peak reverse voltage (VRRM), 0.8 A average forward current (IF), and 150 ns reverse recovery time (trr) measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A - used in DC-DC converters and automotive snubber circuits.
For engineers reviewing the RS1GLH datasheet, RS1GLH pinout, RS1GLH application, or RS1GLH equivalent, key selection criteria include its Sub SMA package, AEC-Q101 qualification, 1.3 V max forward voltage at 0.8 A, 5 µA max reverse leakage at 25°C, and suitability for high-efficiency switching in space-constrained automotive lighting and power supply designs.
Technical Context
The RS1GLH is a single-die, glass-passivated silicon junction rectifier optimized for fast switching in medium-voltage, low-current applications. Its 400 V VRRM rating and 150 ns trr enable efficient operation in flyback and freewheeling topologies where rapid turn-off minimizes switching losses.
Thermally, it features a junction-to-lead resistance of 32 °C/W and operates across –55°C to +150°C junction temperature range. It meets J-STD-020 moisture sensitivity level 1 and JESD 201 class 2 whisker resistance requirements - confirming robustness for automated SMT assembly and automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - supports DC-DC input stages up to 400 V peak reverse stress without breakdown |
| IF (avg) | 0.8 A - continuous forward conduction capability suitable for low-power auxiliary rails |
| trr | 150 ns - enables high-frequency switching (>100 kHz) with minimal reverse recovery loss |
| VF (max) | 1.3 V @ 0.8 A - limits forward conduction loss to ≤1.04 W at rated current |
| IR (max) | 5 µA @ 25°C - ensures low standby leakage in battery-backed or energy-sensitive circuits |
| RθJL | 32 °C/W - allows direct thermal coupling to PCB copper for passive cooling in compact layouts |
Pinout & Package
Package: Sub SMA - surface-mount, molded plastic case with matte tin-plated leads, polarity indicated by cathode band, UL 94V-0 rated compound, weight ≈ 0.019 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., switch node or ground return) in freewheeling path |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; ties to higher-potential rail (e.g., output capacitor positive or inductor output) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test standards |
| Glass passivated junction | Enhances long-term stability and humidity resistance versus epoxy-passivated alternatives |
| Fast recovery (150 ns) | Reduces switching loss and EMI generation compared to standard rectifiers in 50–500 kHz converters |
| Sub SMA package | Enables high-density placement with 2.5 mm × 1.3 mm footprint and compatibility with standard SMA reflow profiles |
Applications
| DC-DC Converter Secondary Rectification | Automotive LED Lighting Driver |
|---|---|
Use Scenario: Used as secondary-side synchronous rectifier replacement in isolated flyback converters powering infotainment displays. IC Role / Device Role / Timing Role: Fast-recovery rectifier conducting during transformer demagnetization phase; blocks reverse voltage during primary switch on-time. Use Value: 150 ns trr reduces cross-conduction loss and improves efficiency by ≥0.8% over standard rectifiers at 250 kHz switching. | Use Scenario: Freewheeling diode across inductive LED driver coil in adaptive front-lighting systems (AFS). IC Role / Device Role / Timing Role: Provides safe current path during PWM off-time; clamps inductive kickback to prevent MOSFET drain overvoltage. Use Value: 400 V VRRM withstands transient spikes up to 380 V, and AEC-Q101 qualification ensures operation at 125°C ambient. |
| Snubber Network Diode | Industrial Power Supply Auxiliary Rail |
Use Scenario: Reverse-biased element in RCD snubber across MOSFETs in AC-DC PFC stages. IC Role / Device Role / Timing Role: Blocks main rail voltage while charging snubber capacitor during switch turn-off; rapidly recovers before next cycle. Use Value: Low CJ (10 pF) minimizes capacitive loading, and 150 ns trr prevents false triggering of snubber discharge timing. | Use Scenario: Output rectifier for 12 V/0.5 A auxiliary bias supply in programmable logic controller (PLC) power modules. IC Role / Device Role / Timing Role: Delivers stable low-current DC after transformer secondary winding; handles intermittent load surges up to 30 A IFSM. Use Value: Sub SMA package fits tight board spacing; 32 °C/W RθJL enables natural convection cooling without heatsink. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R04 | Same VRRM (400 V), but VF = 1.35 V (max) @ 1 A; trr = 120 ns; DO-214AC package | DO-214AC has larger footprint (4.5 × 2.7 mm) vs. Sub SMA (2.5 × 1.3 mm); higher IFSM (50 A) | Prefer STTH1R04 for higher surge tolerance; choose RS1GLH when board area or automotive qualification is critical |
| MBR0540 | Schottky structure; VF = 0.55 V (typ) @ 0.5 A, but VRRM only 40 V; no reverse recovery (trr = N/A) | Not suitable above 40 V reverse stress; limited to low-voltage DC-DC outputs | Use MBR0540 only in ≤40 V applications where ultra-low VF outweighs voltage limitation; RS1GLH remains required for 400 V blocking |
Compared with STTH1R04 and MBR0540, the RS1GLH uniquely balances 400 V capability, AEC-Q101 compliance, and Sub SMA miniaturization - making it the only viable option for space-constrained, thermally demanding automotive 12 V–48 V subsystems requiring fast recovery and industrial-grade reliability.
Availability
RS1GLH is available at Aetrix Electronics and suitable for DC-DC converters, automotive LED lighting drivers, and snubber networks requiring stable component supply across automotive OEM and Tier-1 production programs.
Supply support for RS1GLH 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 global automotive, industrial, and consumer markets since 1979.
The RS1GLH belongs to TSC's RS1xLH fast recovery rectifier family - designed specifically for high-reliability, surface-mount power conversion in automotive lighting, body electronics, and industrial power supplies where AEC-Q101 validation and thermal robustness are mandatory.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for RS1GLH?
The RS1GLH has a VRRM rating of 400 V, meaning it can reliably block reverse voltages up to this level without breakdown under repetitive conditions. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version A2103) and is specific to the RS1GLH variant - distinct from RS1ALH (50 V) or RS1MLH (1000 V). The RS1GLH must not be operated beyond 400 V in any design.
Is RS1GLH qualified for automotive applications?
Yes, the RS1GLH is AEC-Q101 qualified, as explicitly stated in the Features section of the Taiwan Semiconductor datasheet. This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and mechanical shock - validating its suitability for under-hood and cabin automotive systems such as LED headlight drivers and body control modules. The RS1GLH is not just "automotive grade" - it is formally certified.
What is the reverse recovery time (trr) condition for RS1GLH?
The RS1GLH reverse recovery time is specified as 150 ns under the exact test condition: IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, per the Electrical Specifications table. This measurement reflects real-world switching behavior in flyback and forward converter freewheeling paths. Unlike generic "fast recovery" claims, this trr value is measured and guaranteed - not typical or calculated - and applies only to the RS1GLH, not other variants like RS1JLH (250 ns).
Does RS1GLH have a halogen-free construction?
Yes, the RS1GLH uses halogen-free molding compound compliant with IEC 61249-2-21, as documented in the Features section of the Taiwan Semiconductor datasheet. This applies to the entire RS1xLH family, including RS1GLH, and is verified through material certification. The device also meets RoHS Directive 2011/65/EU requirements, confirming absence of brominated flame retardants and other restricted halogens.
What is the thermal resistance from junction to lead (RθJL) for RS1GLH?
The RS1GLH has a typical junction-to-lead thermal resistance (RθJL) of 32 °C/W, as published in the Thermal Performance table of the official datasheet. This value is measured under standardized JEDEC conditions and enables accurate PCB copper pad sizing for thermal management. It is significantly lower than junction-to-ambient (RθJA = 105 °C/W), confirming that heat transfer via the leads - not ambient air - dominates thermal performance in properly designed layouts.
RS1GLH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 800 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Capacitance @ Vr, F:
- 10pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Sub SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS1GLH FAQ
1.How can I place an order for RS1GLH through Aetrix?
Please submit a Request for Quotation (RFQ) for RS1GLH 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 RS1GLH reliable?
The price and inventory of RS1GLH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1GLH is usually 5 days.
3.What payment methods are accepted for RS1GLH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1GLH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS1GLH?
RS1GLH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS1GLH 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 RS1GLH?
For technical support, including RS1GLH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1GLH requirements.
6.How does Aetrix verify that RS1GLH is sourced from the original manufacturer or authorized distributors?
All RS1GLH 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 RS1GLH meets industry standards.
7.What is the process for return or replacement of RS1GLH?
All RS1GLH units undergo pre-shipment inspection (PSI). If there is an issue with RS1GLH, 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 RS1GLH part is unused and in its original packaging.
Return procedure for RS1GLH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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