My Inquiry
My Account
Taiwan Semiconductor Corporation SS23LH
- Part No.:
- SS23LH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
SS23LH.pdf
- Description:
- 2A, 30V, SCHOTTKY RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:5,954
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SS23LH from Taiwan Semiconductor is a 30 V, 2 A surface-mount Schottky barrier rectifier in Sub SMA package, featuring 50 A peak surge current, 0.50 V forward voltage at 2 A/25°C, and AEC-Q101 qualification for automotive-grade reliability-used in DC/DC converters and reverse battery protection circuits.
For engineers reviewing the SS23LH datasheet, SS23LH pinout, SS23LH application, or SS23LH equivalent, key selection criteria include its 30 V repetitive peak reverse voltage, low VF for high-efficiency power conversion, AEC-Q101 qualification status, thermal resistance (RθJL = 17 °C/W), and Sub SMA mechanical compatibility with automated SMT assembly.
Technical Context
The SS23LH operates as a single-die, unidirectional Schottky rectifier optimized for low-voltage, high-frequency switching applications. Its guard ring structure provides overvoltage protection, and it supports junction temperatures up to +150°C with moisture sensitivity level 1 per J-STD-020.
It delivers high surge current capability (IFSM = 50 A, 8.3 ms half-sine) and exhibits fast recovery behavior with dV/dt rating of 10,000 V/μs. The device uses matte tin-plated leads compliant with J-STD-002 solderability and meets JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse blocking voltage; defines safe operating range in reverse-biased conditions |
| IF | 2 A - Continuous average forward current; sets steady-state power handling capacity |
| IFSM | 50 A - Non-repetitive peak surge current; enables robustness against transient load spikes |
| VF | 0.50 V @ 2 A, 25°C - Low conduction loss; improves efficiency in low-voltage DC/DC stages |
| RθJL | 17 °C/W - Junction-to-lead thermal resistance; enables direct heat transfer to PCB copper for thermal management |
| TJ max | +150°C - Maximum junction temperature; supports operation in under-hood automotive environments |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive discrete semiconductors |
Pinout & Package
Package: Sub SMA - Surface-mount plastic package with cathode band marking, UL 94V-0 molding compound, and matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., ground or return path) in rectification topology |
| Cathode | Forward current exit / reverse-blocking terminal | Marked by band; connects to higher-potential rail; blocks reverse current up to 30 V |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| Guard ring structure | Enhances ruggedness against transient overvoltage events without external snubbers |
| Moisture sensitivity level 1 | Enables unlimited floor life before reflow; eliminates bake requirement prior to assembly |
| Halogen-free construction | Complies with IEC 61249-2-21; supports RoHS-compliant and environmentally regulated designs |
| High IFSM/IF ratio (25×) | Provides margin for inrush and fault currents in automotive lighting and power modules |
Applications
| DC/DC Converter | Reverse Battery Protection |
|---|---|
Use Scenario: Step-down converter in 12 V automotive subsystems powering infotainment or ADAS sensors. IC Role / Device Role / Timing Role: Output rectifier conducting continuous 2 A load current with minimal conduction loss. Use Value: 0.50 V forward drop reduces power dissipation by >30% vs. standard PN diodes at same current, improving thermal margin. | Use Scenario: Preventing damage during incorrect battery connection in vehicle body control modules. IC Role / Device Role / Timing Role: Series-connected Schottky diode blocking reverse polarity while passing normal forward current. Use Value: 30 V VRRM safely withstands load dump transients; low VF avoids excessive voltage drop in forward path. |
| Car Lighting | Freewheeling Diode |
Use Scenario: LED headlamp driver with PWM dimming and inductive energy storage. IC Role / Device Role / Timing Role: Freewheeling path for inductor current during MOSFET off-time in buck topology. Use Value: Fast recovery and low stored charge minimize switching losses and EMI generation during commutation. | Use Scenario: Relay or solenoid coil suppression in power distribution units. IC Role / Device Role / Timing Role: Clamping inductive kickback to protect driving transistor. Use Value: 50 A IFSM handles high-energy coil discharge pulses without degradation or failure. |
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 VRRM (30 V), but IF = 2 A and VF = 0.52 V @ 2 A; no AEC-Q101 qualification | Not qualified for automotive; suitable for industrial or consumer DC/DC where qualification is not mandated | Select when AEC-Q101 is unnecessary and cost sensitivity outweighs automotive compliance needs |
| SS33HE3/5BT | Higher IF (3 A), same VRRM (30 V), VF = 0.51 V @ 3 A; AEC-Q101 qualified; Sub SMA package | Supports higher continuous current; requires layout review for thermal pad area due to larger die | Choose when system load exceeds 2 A or long-term derating margin is required beyond 125°C ambient |
Compared with SB230-TB and SS33HE3/5BT, the SS23LH offers optimal balance of AEC-Q101 compliance, 2 A rating, and 0.50 V forward drop in a compact Sub SMA footprint-making it ideal for space-constrained, thermally demanding automotive power rails where qualification and efficiency are jointly critical.
Availability
SS23LH is available at Aetrix Electronics and suitable for automotive lighting, DC/DC converters, and reverse battery protection systems requiring stable component supply across production lifecycles.
Supply support for SS23LH 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 semiconductor manufacturer specializing in power discretes, analog ICs, and protection devices with global automotive and industrial certifications.
The SS23LH belongs to TSC's AEC-Q101-qualified Schottky rectifier family designed specifically for high-reliability 12 V/24 V automotive power systems where low VF, surge robustness, and thermal stability are essential.
FAQ
What is the maximum junction temperature rating for SS23LH?
The SS23LH has a maximum junction temperature (TJ) of +150°C, verified per AEC-Q101 stress testing. This allows reliable operation in under-hood automotive environments where ambient temperatures exceed 105°C. Derating curves in the SS23LH datasheet confirm sustained 2 A operation up to 125°C ambient with appropriate PCB copper area.
Is SS23LH pin-compatible with other parts in the SS2xLH series?
Yes, all SS2xLH devices-including SS23LH-share identical Sub SMA package dimensions, lead configuration, and cathode band polarity marking. Mechanical compatibility is confirmed in the SS22LH–SS215LH package outline drawing (Version A2103), enabling drop-in replacement across voltage grades when electrical parameters permit.
Does SS23LH require special handling for moisture sensitivity?
No-SS23LH is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life at ≤30°C/60% RH and does not require baking before reflow soldering. This simplifies manufacturing flow and eliminates moisture-related popcorning risk during assembly.
What is the reverse leakage current specification for SS23LH at 100°C?
At TJ = 100°C and rated VR = 30 V, the SS23LH exhibits a maximum reverse current (IR) of 15 mA. This value is specified in the "ELECTRICAL SPECIFICATIONS" table on page 2 of the SS22LH–SS215LH datasheet (Version A2103) and reflects typical thermal performance for Schottky devices in this voltage class.
Can SS23LH be used in place of a standard PN rectifier in a 12 V automotive circuit?
Yes-the SS23LH replaces PN rectifiers in 12 V automotive circuits to reduce conduction loss: its 0.50 V VF at 2 A cuts power dissipation nearly in half versus a typical 0.9 V PN diode. However, designers must verify that system reverse voltage stays within 30 V VRRM, and that leakage at elevated temperature remains acceptable for the application.
SS23LH 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:
- 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:
- 400 µA @ 30 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Sub SMA
- Operating Temperature - Junction:
- -55°C ~ 125°C
SS23LH FAQ
1.How can I place an order for SS23LH through Aetrix?
Please submit a Request for Quotation (RFQ) for SS23LH 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 SS23LH reliable?
The price and inventory of SS23LH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS23LH is usually 5 days.
3.What payment methods are accepted for SS23LH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS23LH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS23LH?
SS23LH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS23LH 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 SS23LH?
For technical support, including SS23LH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS23LH requirements.
6.How does Aetrix verify that SS23LH is sourced from the original manufacturer or authorized distributors?
All SS23LH 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 SS23LH meets industry standards.
7.What is the process for return or replacement of SS23LH?
All SS23LH units undergo pre-shipment inspection (PSI). If there is an issue with SS23LH, 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 SS23LH part is unused and in its original packaging.
Return procedure for SS23LH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SS23LH 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…
