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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation RS1GH

Name: RS1GH
Brand: Taiwan Semiconductor Corporation
SKU: RS1GH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: RS1GH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: RS1GH.pdf

Description:: DIODE GEN PURP 400V 1A DO214AC

Quantity:: RFQ Add To RFQ list

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Inventory:15,000

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Product details

Overview

RS1GH from Taiwan Semiconductor is a 1A, 400V repetitive peak reverse voltage (V_RRM) fast recovery surface-mount rectifier in DO-214AC (SMA) package, featuring 150 ns reverse recovery time (t_rr), 1.3 V max forward voltage at 1 A, and 5 µA max reverse leakage at 25°C - used in automotive DC-DC converters and snubber circuits.

For engineers reviewing the RS1GH datasheet, RS1GH pinout, RS1GH application, or RS1GH equivalent, key selection criteria include its AEC-Q101 qualification, 175°C maximum junction temperature, glass-passivated junction, moisture sensitivity level 1 rating, and compatibility with automated placement in high-reliability automotive lighting and power conversion designs.

Technical Context

The RS1GH operates as a single-die, unidirectional fast recovery rectifier optimized for high-efficiency switching applications. Its 150 ns t_rr enables reduced switching losses in 50–500 kHz DC-DC topologies, while the 1.3 V V_F max at 1 A supports thermal management in space-constrained layouts.

Thermally, it delivers R_θJA = 105°C/W and R_θJL = 30°C/W, enabling reliable operation up to 175°C junction temperature. The DO-214AC (SMA) package provides JESD201 Class 2 whisker resistance and matte tin-plated leads compliant with J-STD-002 solderability.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - maximum non-repetitive reverse blocking voltage before breakdown
I_F	1 A continuous - rated average forward current under specified thermal conditions
t_rr	150 ns - fast recovery enables efficient high-frequency switching in SMPS
V_F max	1.3 V @ 1 A, 25°C - low conduction loss improves system efficiency
I_R max	5 µA @ 400 V, 25°C - minimal leakage preserves standby power integrity
T_J max	+175°C - supports under-hood automotive environments without derating
R_θJA	105°C/W - defines thermal limit for PCB-mounted operation without heatsink

Pinout & Package

DO-214AC (SMA) surface-mount package with cathode-indicated band; two-terminal device (anode and cathode) in molded plastic body meeting UL 94V-0 flammability rating and JESD201 Class 2 whisker resistance.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of circuit; must withstand 1 A continuous and 30 A surge
Cathode	Forward current exit / reverse blocking terminal	Marked by band; handles full V_RRM = 400 V reverse bias and defines polarity-sensitive layout

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing
Glass passivated junction	Enhances long-term stability and moisture resistance vs. epoxy-passivated alternatives
Moisture sensitivity level 1	Enables direct use from reel without baking - reduces manufacturing overhead
Fast recovery (150 ns)	Minimizes reverse recovery charge (Q_rr) in flyback and boost converters
Halogen-free & RoHS compliant	Meets global environmental compliance requirements for automotive and industrial end equipment

Applications

Automotive DC-DC Converters	LED Headlamp Drivers
Use Scenario: Secondary-side rectification in 12 V–48 V bidirectional DC-DC modules for 48 V mild hybrid systems. IC Role / Device Role / Timing Role: Fast recovery rectifier handling 1 A continuous output with minimal switching loss at 200 kHz switching frequency. Use Value: 150 ns t_rr and 1.3 V V_F reduce conduction + recovery losses, improving converter efficiency by ≥1.2% over standard recovery diodes.	Use Scenario: Constant-current regulation loop in adaptive LED headlamps with PWM dimming and thermal foldback. IC Role / Device Role / Timing Role: Snubber diode clamping inductive kickback from buck controller MOSFETs during PWM off-time. Use Value: 400 V V_RRM safely absorbs 350 V transient spikes; glass passivation ensures stable leakage below 5 µA across -40°C to +125°C ambient.
Industrial Snubber Networks	General-Purpose Power Supplies
Use Scenario: RC-snubber protection across IGBTs in motor drive inverters operating at 16 kHz carrier frequency. IC Role / Device Role / Timing Role: Fast freewheeling path absorbing stored inductive energy during turn-off transitions. Use Value: 30 A I_FSM withstands repetitive surge events; 175°C T_J max allows operation in sealed enclosures without forced air cooling.	Use Scenario: Output rectification in universal-input AC-DC adapters (90–264 V_AC) delivering ≤12 W at 5 V/2.4 A. IC Role / Device Role / Timing Role: Primary-output synchronous rectifier replacement where cost and footprint are prioritized over ultra-low V_F. Use Value: DO-214AC (SMA) footprint enables drop-in replacement on legacy boards; AEC-Q101 qualification adds margin for extended product lifecycle.

Automotive DC-DC Converters

LED Headlamp Drivers

Use Scenario: Secondary-side rectification in 12 V–48 V bidirectional DC-DC modules for 48 V mild hybrid systems.

IC Role / Device Role / Timing Role: Fast recovery rectifier handling 1 A continuous output with minimal switching loss at 200 kHz switching frequency.

Use Value: 150 ns t_rr and 1.3 V V_F reduce conduction + recovery losses, improving converter efficiency by ≥1.2% over standard recovery diodes.

Use Scenario: Constant-current regulation loop in adaptive LED headlamps with PWM dimming and thermal foldback.

IC Role / Device Role / Timing Role: Snubber diode clamping inductive kickback from buck controller MOSFETs during PWM off-time.

Use Value: 400 V V_RRM safely absorbs 350 V transient spikes; glass passivation ensures stable leakage below 5 µA across -40°C to +125°C ambient.

Industrial Snubber Networks

General-Purpose Power Supplies

Use Scenario: RC-snubber protection across IGBTs in motor drive inverters operating at 16 kHz carrier frequency.

IC Role / Device Role / Timing Role: Fast freewheeling path absorbing stored inductive energy during turn-off transitions.

Use Value: 30 A I_FSM withstands repetitive surge events; 175°C T_J max allows operation in sealed enclosures without forced air cooling.

Use Scenario: Output rectification in universal-input AC-DC adapters (90–264 V_AC) delivering ≤12 W at 5 V/2.4 A.

IC Role / Device Role / Timing Role: Primary-output synchronous rectifier replacement where cost and footprint are prioritized over ultra-low V_F.

Use Value: DO-214AC (SMA) footprint enables drop-in replacement on legacy boards; AEC-Q101 qualification adds margin for extended product lifecycle.

Equivalent & Alternatives

The following parts are listed as comparable options for similar fast rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MUR140	V_RRM = 400 V, t_rr = 50 ns, V_F = 1.25 V @ 1 A - faster but higher cost and non-AEC-Q101	Preferred in telecom SMPS where <100 ns t_rr is critical; not qualified for automotive under-hood use	Select when ultra-fast recovery outweighs automotive qualification and cost constraints
Vishay VS-1N4937-M3/54	V_RRM = 400 V, t_rr = 200 ns, V_F = 1.3 V @ 1 A - slower recovery, no AEC-Q101, JEDEC DO-41 through-hole	Suitable for cost-sensitive consumer power supplies; incompatible with SMT assembly and automotive thermal requirements	Select only for non-automotive, through-hole legacy designs requiring lowest BOM cost

Compared with MUR140 and VS-1N4937-M3/54, the RS1GH uniquely balances AEC-Q101 compliance, 150 ns t_rr, DO-214AC SMT compatibility, and 175°C operation - making it the optimal choice for automotive lighting and 48 V DC-DC where reliability and manufacturability are co-prioritized.

Availability

RS1GH is available at Aetrix Electronics and suitable for automotive lighting, DC-DC converters, and industrial snubber networks requiring stable component supply, AEC-Q101 traceability, and DO-214AC (SMA) footprint consistency.

Supply support for RS1GH 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 RS1GH belongs to TSC's AEC-Q101-qualified fast rectifier family designed specifically for high-reliability automotive power conversion - emphasizing thermal robustness, automated assembly readiness, and long-term parametric stability under harsh environmental stress.

FAQ

What is the maximum junction temperature rating for RS1GH?

The RS1GH has a maximum junction temperature (T_J) rating of +175°C, verified per AEC-Q101 stress testing. This allows uninterrupted operation in under-hood automotive environments and sealed industrial enclosures without thermal derating up to ambient temperatures of +125°C when mounted on standard FR-4 PCB with recommended pad layout. The RS1GH maintains stable electrical parameters across this full range.

Is RS1GH compatible with lead-free reflow soldering processes?

Yes, the RS1GH features matte tin-plated leads qualified to J-STD-002 for solderability and is rated for lead-free reflow profiles up to 260°C peak temperature. Its moisture sensitivity level 1 (per J-STD-020) means it can be placed directly from tape-and-reel without pre-baking - supporting high-yield, high-throughput SMT assembly lines used in automotive electronics manufacturing.

Does RS1GH have AEC-Q101 qualification documentation available?

Yes, RS1GH is fully AEC-Q101 qualified, with test reports covering HTGB, HTRB, TC, UHAST, and ESD (HBM/MM). Certification documentation is available upon request from Taiwan Semiconductor and is referenced in Version B2304 of the official RS1AH–RS1MH datasheet. The RS1GH shares qualification status with the full RS1xH family.

What is the reverse recovery time (t_rr) of RS1GH and how is it measured?

The RS1GH has a typical reverse recovery time (t_rr) of 150 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per JEDEC Test Method JESD282. This value is confirmed across production lots and is specified in the Electrical Specifications table of the RS1AH–RS1MH datasheet. The RS1GH's t_rr enables efficient operation in 100–500 kHz switching power supplies.

Can RS1GH replace RS1DH or RS1JH in an existing design?

No - RS1GH (400 V V_RRM) is not a direct replacement for RS1DH (200 V) or RS1JH (600 V) due to different reverse voltage ratings and corresponding t_rr values (RS1DH: 150 ns, RS1JH: 250 ns). Substitution requires verification of maximum circuit reverse voltage and acceptable recovery time. The RS1GH must only be used where 400 V blocking capability and 150 ns t_rr meet design margins.

RS1GH Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AC, SMA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 400 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 @ 400 V

Capacitance @ Vr, F:: 10pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AC (SMA)

Operating Temperature - Junction:: -55°C ~ 150°C

RS1GH FAQ

1.How can I place an order for RS1GH through Aetrix?

Please submit a Request for Quotation (RFQ) for RS1GH 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 RS1GH reliable?

The price and inventory of RS1GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1GH is usually 5 days.

3.What payment methods are accepted for RS1GH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1GH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for RS1GH?

RS1GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your RS1GH 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 RS1GH?

For technical support, including RS1GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1GH requirements.

6.How does Aetrix verify that RS1GH is sourced from the original manufacturer or authorized distributors?

All RS1GH 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 RS1GH meets industry standards.

7.What is the process for return or replacement of RS1GH?

All RS1GH units undergo pre-shipment inspection (PSI). If there is an issue with RS1GH, 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 RS1GH part is unused and in its original packaging.

Return procedure for RS1GH:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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