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Taiwan Semiconductor Corporation SR102HR0G
- Part No.:
- SR102HR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
SR102HR0G.pdf
- Description:
- DIODE SCHOTTKY 20V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,956
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Product details
Overview
SR102HR0G from Taiwan Semiconductor is a 1 A, 20 V AEC-Q101-qualified Schottky barrier rectifier in DO-204AL (DO-41) package, featuring 0.55 V forward voltage at 1 A and 30 A surge current capability, used in automotive-grade DC-DC converters and SMPS secondary-side rectification.
For engineers reviewing the SR102HR0G datasheet, SR102HR0G pinout, SR102HR0G application, or SR102HR0G equivalent, key selection criteria include its AEC-Q101 qualification, low VF at rated current, TJ max of 125°C, guard ring–enhanced dv/dt immunity, and DO-41 mechanical compatibility with legacy through-hole power designs.
Technical Context
This discrete Schottky diode employs a single-die construction with a guard ring structure to improve transient overvoltage robustness and achieve 10,000 V/µs critical dv/dt rating. Its junction-to-ambient thermal resistance is 90°C/W, supporting operation up to 125°C junction temperature under defined PCB copper area conditions.
The device delivers low conduction loss via optimized metal-semiconductor interface, yielding 0.55 V typical VF at 1 A and 25°C - confirmed for SR102 variants - while maintaining <500 µA reverse leakage at 20 V and 25°C, enabling high-efficiency 12 V–24 V output rectification in compact adapters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Continuous Forward Current) | 1 A - supports sustained output rectification in 5–15 W SMPS without forced cooling |
| VRRM (Repetitive Peak Reverse Voltage) | 20 V - rated for 12 V nominal input/output systems with margin against transients |
| VF @ 1 A, 25°C | 0.55 V typical - reduces conduction loss by ~30% vs. standard PN diodes at same current |
| IFSM (Surge Current) | 30 A (8.3 ms half-sine) - withstands inrush and fault currents in unregulated supplies |
| TJ max | 125°C - enables use in under-hood automotive modules per AEC-Q101 stress requirements |
| dv/dt Rating | 10,000 V/µs - guard ring design prevents false turn-on during fast-switching node transitions |
| IR @ 20 V, 25°C | ≤500 µA - ensures low standby power loss in battery-backed or energy-sensitive circuits |
Pinout & Package
DO-204AL (DO-41) axial-leaded package with cathode band marking; leads are pure tin-plated, J-STD-002 solderable, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., transformer secondary center-tap or switch node) |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; ties to output rail or filter capacitor positive; blocks 20 V reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling |
| Guard ring structure | Enables 10,000 V/µs dv/dt immunity - prevents spurious conduction during high-speed switching transitions |
| Low VF (0.55 V typ) | Reduces forward power dissipation to ≤0.55 W at 1 A - critical for thermally constrained adapter PCBs |
| RoHS & halogen-free | Complies with IEC 61249-2-21; UL 94V-0 molding compound supports environmentally regulated production |
| 30 A surge rating | Handles repetitive 8.3 ms line-frequency surges - suitable for AC-input rectifier front-end or DC bus protection |
Applications
| Automotive DC-DC Converter | USB-C Power Adapter |
|---|---|
Use Scenario: 12 V to 5 V/3.3 V step-down conversion in vehicle infotainment head units. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement; conducts during low-side switch conduction phase. Use Value: 0.55 V VF minimizes heat generation in sealed enclosures; AEC-Q101 qualification ensures reliability across -40°C to +125°C ambient. | Use Scenario: Output rectification in 20–30 W USB PD wall adapters with flyback topology. IC Role / Device Role / Timing Role: Uncontrolled rectifier on transformer secondary winding, delivering filtered DC to post-regulator stage. Use Value: Low IR (<500 µA) preserves no-load efficiency; DO-41 footprint allows manual rework and automated insertion in mixed-technology boards. |
| Industrial SMPS Auxiliary Supply | LED Driver Secondary Rectification |
Use Scenario: 24 V input, 12 V/1 A auxiliary bias supply for PLC I/O modules. IC Role / Device Role / Timing Role: Primary rectifier feeding linear regulator or buck controller IC bias rail. Use Value: 30 A IFSM tolerates startup surges from bulk capacitors; 90°C/W RθJA enables natural convection cooling on 1 oz Cu board. | Use Scenario: Constant-current LED string supply with isolated flyback, 12–24 V output. IC Role / Device Role / Timing Role: Output rectifier converting high-frequency transformer AC to DC before current-sense resistor. Use Value: Guard ring suppresses EMI-induced false triggering in noisy lighting environments; RoHS/halogen-free compliance meets EU EcoDesign directives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-1EQH02-M3/5AT | Same DO-41 package, 20 V VRRM, 1 A IF, but VF = 0.52 V typ - slightly lower conduction loss | No AEC-Q101 qualification; rated only to TJ = 125°C without automotive stress validation | Select when automotive qualification is not required and sub-30 mV VF reduction justifies alternate sourcing |
| ON Semiconductor SB120 | DO-41, 20 V, 1 A, VF = 0.54 V typ, but IR = 1 mA max at 25°C - 2× higher leakage than SR102HR0G | Not AEC-Q101 qualified; intended for commercial power supplies only | Prefer for cost-sensitive non-automotive adapters where leakage <500 µA is not mandatory |
Compared with VS-1EQH02-M3/5AT and SB120, SR102HR0G uniquely combines AEC-Q101 qualification, 500 µA max IR, and 0.55 V VF in DO-41 - making it the only drop-in option for automotive auxiliary supplies requiring validated reliability and low standby loss.
Availability
SR102HR0G is available at Aetrix Electronics and suitable for automotive DC-DC converters, USB-C power adapters, and industrial SMPS auxiliary supplies requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SR102HR0G 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 devices, and MOSFETs for industrial and automotive markets.
The SR102–SR115 series was designed specifically to deliver AEC-Q101-qualified Schottky rectification with optimized VF–IR trade-off for 12–48 V automotive and industrial power systems.
FAQ
What does the 'H' and 'R0G' suffix mean in SR102HR0G?
The 'H' denotes AEC-Q101 qualification per the manufacturer's ordering code convention; 'R0G' indicates green (halogen-free) molding compound and tape-and-reel packaging (5,000 pcs). This confirms SR102HR0G meets automotive reliability standards and environmental compliance requirements - both verified in TSC's G2104 datasheet revision.
Is SR102HR0G pin-compatible with standard DO-41 diodes like 1N4001?
Yes, SR102HR0G uses the DO-204AL (DO-41) package with identical lead spacing, diameter, and cathode-band polarity marking as 1N4001, enabling direct mechanical replacement. However, SR102HR0G is a Schottky device with 20 V VRRM and 0.55 V VF - not a general-purpose PN rectifier - so electrical substitution requires circuit validation.
What is the maximum allowable PCB copper area to maintain TJ ≤ 125°C at 1 A continuous?
With RθJA = 90°C/W and 0.55 W power dissipation at 1 A, a 70°C ambient requires ≤70°C rise - achievable with ≥1 cm² of 1 oz copper on FR-4 using standard DO-41 pad layout. The SR102HR0G datasheet specifies this thermal performance under JEDEC High-K test board conditions; actual layout must verify via thermal simulation or IR imaging.
Does SR102HR0G support reflow soldering or only wave/hand soldering?
SR102HR0G is specified for hand and wave soldering per J-STD-002; its DO-41 package is not rated for lead-free reflow profiles. Peak temperature exposure >215°C risks internal bond wire damage and delamination. For SMT-compatible alternatives, consider TSC's surface-mount SR102HM3 series - but SR102HR0G itself requires through-hole assembly methods.
How does the guard ring in SR102HR0G improve system-level reliability?
The guard ring in SR102HR0G enhances edge termination robustness, raising the critical dv/dt threshold to 10,000 V/µs - preventing parasitic turn-on during fast-switching events in flyback or LLC converters. This directly improves EMI immunity and eliminates erratic behavior in noisy automotive power nets, a failure mode documented in comparative testing against non-guard-ring Schottky diodes like SB120.
SR102HR0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 20 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 20 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -55°C ~ 125°C
SR102HR0G FAQ
1.How can I place an order for SR102HR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SR102HR0G 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 SR102HR0G reliable?
The price and inventory of SR102HR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR102HR0G is usually 5 days.
3.What payment methods are accepted for SR102HR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR102HR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR102HR0G?
SR102HR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR102HR0G 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 SR102HR0G?
For technical support, including SR102HR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR102HR0G requirements.
6.How does Aetrix verify that SR102HR0G is sourced from the original manufacturer or authorized distributors?
All SR102HR0G 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 SR102HR0G meets industry standards.
7.What is the process for return or replacement of SR102HR0G?
All SR102HR0G units undergo pre-shipment inspection (PSI). If there is an issue with SR102HR0G, 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 SR102HR0G part is unused and in its original packaging.
Return procedure for SR102HR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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