My Inquiry
My Account
Taiwan Semiconductor Corporation SK23AHR3G
- Part No.:
- SK23AHR3G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SK23AHR3G.pdf
- Description:
- DIODE SCHOTTKY 30V 2A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,718
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SK23AHR3G from Taiwan Semiconductor is a 2 A, 30 V Schottky barrier surface-mount rectifier in DO-214AC (SMA) package, qualified to AEC-Q101, with 0.50 V forward voltage at 2 A and 25 °C, 50 A surge current rating, and moisture sensitivity level 1. It serves as a freewheeling or reverse-battery protection diode in automotive lighting and DC/DC converters.
For engineers reviewing the SK23AHR3G datasheet, SK23AHR3G pinout, SK23AHR3G application, or SK23AHR3G equivalent, key selection criteria include its low VF for efficiency, high IFSM for transient robustness, AEC-Q101 qualification for automotive reliability, and DO-214AC footprint compatibility with automated SMT assembly.
Technical Context
This Schottky rectifier uses a single-die construction with guard ring over-voltage protection and matte tin-plated leads compliant with J-STD-002 solderability. Its junction temperature range spans –55 °C to +125 °C, and it delivers 88 °C/W junction-to-ambient thermal resistance under standard PCB mounting conditions.
The device operates with low conduction loss due to its metal-semiconductor junction, enabling high-frequency switching performance. Reverse leakage remains ≤0.5 mA at 25 °C and rated VR, and ≤10 mA at 100 °C - critical for maintaining efficiency in thermally constrained automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - maximum repetitive reverse voltage; defines safe blocking capability in 12–24 V automotive systems |
| IF | 2 A - continuous forward current rating; supports sustained load in compact DC/DC output stages |
| VF @ 2 A, 25 °C | 0.50 V - low conduction drop; reduces power loss to ≤1.0 W at full load |
| IFSM | 50 A - non-repetitive surge rating; withstands inductive kickback in motor or solenoid drive circuits |
| TJ max | 125 °C - maximum operating junction temperature; enables use in under-hood environments without derating |
| RθJA | 88 °C/W - thermal resistance; requires minimal copper area for thermal management on standard FR-4 |
| MSL | Level 1 - no floor life limitation; supports indefinite storage and reflow without baking |
Pinout & Package
Package: DO-214AC (SMA), surface-mount plastic case with cathode band marking; dimensions per JEDEC DO-214AC, Issue D; weight ≈ 0.070 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal | Connected to lower-potential side (e.g., ground or switch node); polarity defined by cathode band |
| Cathode | Current exit terminal | Marked with band; connects to higher-potential rail (e.g., battery+, output of buck converter) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Guard ring structure | Enhances ruggedness against transient overvoltage events without external clamping |
| Low VF at high IF | 0.50 V at 2 A ensures >95% conduction efficiency in 12 V systems |
| Halogen-free & RoHS-compliant | Meets global environmental compliance requirements for automotive and industrial end equipment |
| High dV/dt capability | 10,000 V/µs rating supports fast-switching topologies without false turn-on |
Applications
| Automotive LED Lighting | 12 V DC/DC Converter Output Rectification |
|---|---|
Use Scenario: High-brightness LED headlamp modules requiring reverse-polarity protection and low-loss freewheeling path. IC Role / Device Role / Timing Role: Discrete Schottky rectifier used as reverse-battery protection and flyback diode. Use Value: 0.50 V VF minimizes heat generation in sealed lamp housings; AEC-Q101 ensures lifetime reliability under thermal cycling. | Use Scenario: Secondary-side rectification in synchronous or asynchronous buck converters powering infotainment ECUs. IC Role / Device Role / Timing Role: Freewheeling diode providing current continuity during high-side switch off-time. Use Value: Low forward drop improves conversion efficiency; 50 A IFSM handles startup surges without failure. |
| Reverse Battery Protection Circuit | Automotive Body Control Module (BCM) Power Input Stage |
Use Scenario: Preventing damage when jumper cables are incorrectly connected to vehicle battery terminals. IC Role / Device Role / Timing Role: Series-connected Schottky diode blocking reverse current flow into system electronics. Use Value: 30 V VRRM safely blocks reversed 12 V battery input; low VF avoids excessive voltage drop during normal operation. | Use Scenario: Input stage of BCM power supply handling ignition transients and load-dump events. IC Role / Device Role / Timing Role: Clamping/freewheeling element in transient suppression network. Use Value: Guard ring and 125 °C TJ max ensure survival during ISO 7637-2 pulse 5a; MSL Level 1 simplifies manufacturing logistics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB230-TB | Same 30 V VRRM and 2 A IF, but VF = 0.55 V at 2 A; TO-277 package (3-lead, no lead-forming required) | TO-277 offers lower profile and improved thermal pad access vs. SMA; not AEC-Q101 qualified | Select SB230-TB only if AEC-Q101 is not required and board space allows TO-277 footprint |
| SS23HE3/5AT | 30 V VRRM, 2 A IF, VF = 0.52 V at 2 A; DO-214AC package; AEC-Q101 qualified; IR = 0.4 mA at 25 °C | Identical package and qualification; slightly higher VF and leakage than SK23AHR3G | SS23HE3/5AT is a direct drop-in alternative where Taiwan Semiconductor supply constraints exist |
Compared with SB230-TB and SS23HE3/5AT, SK23AHR3G offers the lowest VF (0.50 V) and tightest IR specification (≤0.5 mA) in its voltage class, making it optimal for thermally sensitive or high-efficiency automotive subsystems where conduction loss must be minimized.
Availability
SK23AHR3G is available at Aetrix Electronics and suitable for automotive LED lighting, 12 V DC/DC converter output rectification, and reverse battery protection requiring stable component supply across production lifecycles.
Supply support for SK23AHR3G 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 SK2xAH series was designed specifically for high-reliability automotive power management, emphasizing low VF, AEC-Q101 compliance, and robust surge handling in compact surface-mount packages.
FAQ
What is the maximum junction temperature rating for SK23AHR3G?
The SK23AHR3G has a maximum junction temperature (TJ max) of +125 °C, validated per AEC-Q101 stress testing. This rating permits uninterrupted operation in under-hood automotive environments where ambient temperatures may reach 85 °C and power dissipation induces additional self-heating. The device must be mounted on PCB copper areas sufficient to maintain TJ ≤125 °C under worst-case load conditions.
Is SK23AHR3G qualified for automotive applications?
Yes, SK23AHR3G is explicitly qualified to AEC-Q101 standards, covering stress tests such as high-temperature reverse bias (HTRB), temperature cycling, and electrostatic discharge (ESD). This qualification confirms suitability for automotive power systems including lighting, body control modules, and infotainment power supplies - not just industrial or consumer use.
What does the "R3G" suffix indicate in SK23AHR3G?
The "R3G" suffix in SK23AHR3G denotes tape-and-reel packaging (R3) and green/halogen-free material compliance (G), per Taiwan Semiconductor's ordering nomenclature. It specifies 7,500 units per reel in DO-214AC (SMA) format, with matte tin-plated leads and UL 94V-0 molding compound - fully aligned with J-STD-020 MSL Level 1 handling requirements.
How does SK23AHR3G compare to SK22AHR3G in forward voltage?
SK23AHR3G and SK22AHR3G share identical forward voltage specifications: both exhibit VF ≤0.50 V at IF = 2 A and TJ = 25 °C. The distinction lies solely in peak reverse voltage - SK22AHR3G is rated for 20 V VRRM, while SK23AHR3G is rated for 30 V VRRM - making SK23AHR3G appropriate for 24 V nominal systems or designs requiring higher blocking margin.
Can SK23AHR3G replace SK23AH in existing designs?
Yes, SK23AHR3G is functionally and mechanically identical to SK23AH - both are 30 V, 2 A Schottky rectifiers in DO-214AC (SMA) package with matching electrical specs and AEC-Q101 qualification. The "R3G" suffix only indicates packaging (tape-and-reel) and halogen-free compliance; no circuit-level or thermal differences exist between SK23AH and SK23AHR3G.
SK23AHR3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 500 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 30 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SK23AHR3G FAQ
1.How can I place an order for SK23AHR3G through Aetrix?
Please submit a Request for Quotation (RFQ) for SK23AHR3G 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 SK23AHR3G reliable?
The price and inventory of SK23AHR3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK23AHR3G is usually 5 days.
3.What payment methods are accepted for SK23AHR3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK23AHR3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK23AHR3G?
SK23AHR3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK23AHR3G 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 SK23AHR3G?
For technical support, including SK23AHR3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK23AHR3G requirements.
6.How does Aetrix verify that SK23AHR3G is sourced from the original manufacturer or authorized distributors?
All SK23AHR3G 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 SK23AHR3G meets industry standards.
7.What is the process for return or replacement of SK23AHR3G?
All SK23AHR3G units undergo pre-shipment inspection (PSI). If there is an issue with SK23AHR3G, 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 SK23AHR3G part is unused and in its original packaging.
Return procedure for SK23AHR3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SK23AHR3G Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
