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~10 Days Air Express (DDP Free Shipping)
1-Year Warranty Official Hardware Coverage
110V-130V Standard Full 3000W without de-rating
ETOMMENS® · Ultra-Low Noise Linear DC Power Supplies · eTM-L303 Series
eTM-L303SPD+ 0-30V 0-3A Variable Bench DC Power Supply — 90W
eTM-L303SPD+ Ultra-Low Noise Linear DC Power Supplies 0-30V 0-3A 90W · 1-Year Factory Warranty & 24/7 Direct Engineering Support
- • 03. Continuous Full-Load Endurance: Engineered for continuous 24/7 full-load laboratory and factory endurance without thermal de-rating.
- • ATE Automation Ready: Optional RS232, RS485, or USB communication interfaces for automated PC and ATE test system integration.
- • Dedicated Output ON/OFF Switch: Preset voltage & current safely before energizing DUT, eliminating live connection spikes.
- • Digital Tuning & High-Clarity Readout: Digital controls with multi-digit metering eliminate potentiometer wear and drift.
VOLTAGE 0-30V
CURRENT 0-3A
RATED POWER 90W
HARDWARE CONFIGURATION OPTIONS
Active Setup:Select AC InputNo CablesManual TuningNo SENSE / External Trigger
Unit Price (Configured):
$716
Qty:
Order Total:$716
Air Express DDP (~10 days door-to-door, tax paid)
1-Year Official Hardware Warranty
100% 4-8h Full-Load Chamber Burn-In Tested
Secure Checkout: Cards, PayPal & Bank Wire (PI)
Corporate PO & Bank Wire (T/T) Supported:Official Proforma Invoice (PI) available for any order quantity (1+ unit). Volume tiered discounts apply from 5+ units.
Control Architecture & Use Cases
eTM-L303SPD+ Ultra-Low Noise Linear DC Power Supplies 0-30V 0-3A 90W
Bench Power Supply
01. CV / CC Auto Crossover
Automatic seamless transition between constant voltage (CV) and constant current (CC) modes.
02. 5-Fold Hardware Protection
Hardware-level OVP, OCP, OTP, OPP, and continuous short-circuit foldback.
03. Continuous Full-Load Endurance
Engineered for continuous 24/7 full-load laboratory and factory endurance without thermal de-rating.
ATE Automation Ready
Optional RS232, RS485, or USB communication interfaces for automated PC and ATE test system integration.
eTM-L303SPD+ - View Full Standalone Datasheet & Engineering Specs Ultra-Low Noise Linear DC Power Supplies
Output Voltage Range 0-30V
Output Current Range 0-3A
Maximum Rated Power 90W
Chassis Form & Dimensions 19" Industrial Cabinet Rack (483×177×480 mm)
Display Metering & Digits 4-Digit High-Visibility LED Readout
Ripple & Noise
Voltage Regulation (Load) ≤ 0.1% + 5mV
AC Input Voltage 110V-130V / 220V-240V AC
Remote Interface & Protocol Standard Isolated RS485 (SCPI/Modbus)
Power Input Wiring Standard Full 3000W without de-rating
Efficiency
Full Protection Suite OVP, OCP, OTP, OPP, Foldback
Cooling System Intelligent Temperature-Controlled Fan
Hardware Warranty 1-Year Warranty
Quality Control 100% 4–8h Burn-In
eTM-L303SPD+ PDF PDF · eTM-L303SPD+ Manual / Datasheet
eTM-L303 Series (0-30V 0-3A) — Architecture Comparison & Quick OrderParametric selection matrix across the eTM-L303 Series platform. Review suffix designations, compare topologies, or order directly.
6 In Stock · DDP Air| Photo | Model Number | Suffix & Meaning | Control Architecture & Use Cases | Unit Price | Fast Procurement |
|---|---|---|---|---|---|
 | 0-30V · 0-3A · 90W | [SPD] Represents:Dual 4-Digit High-Brightness Digital LED Displays (V & A independent windows) | Dual High-Refresh LED Displays with Low Noise TopologyPrimary Applications: Production line assembly, repair stations, long-distance visual parameter checks | $674In Stock · DDP Air | |
 | 0-30V · 0-3A · 90W | [SP] Represents:Standard High Stability Regulation Topology | Precision Regulation with Zero High-Frequency Switching EMIPrimary Applications: General analog electronics R&D, educational labs, sensitive circuit prototyping | $674In Stock · DDP Air | |
 | 0-30V · 0-3A · 90W | [SP+] Represents:Precision Regulation + Enhanced 24/7 Heavy-Duty Industrial Hardware | Reinforced output power stages with transient spike suppressionPrimary Applications: 24/7 continuous industrial full-load aging, endurance testing | $716In Stock · DDP Air | |
| eTM-L303SPD+★ Viewing 0-30V · 0-3A · 90W | [SPD+] Represents:Dual Digital LED Display + Enhanced 24/7 Heavy-Duty Industrial Hardware | Independent Dual V/A Digital LED Displays with Precision RegulationPrimary Applications: Continuous industrial burn-in, motor testing with inductive back-EMF, QA inspection racks | $716In Stock · DDP Air | |
 | 0-30V · 0-3A · 90W | [SPL+] Represents:Multi-Digit LCD Panel Lock + Enhanced 24/7 Industrial Hardware Build | High-Resolution Backlit LCD Readout with Anti-Tamper Front Panel Security LockPrimary Applications: Automated test equipment (ATE) racks, cleanroom labs, semiconductor life-cycle validation | $843In Stock · DDP Air | |
 | 0-30V · 0-3A · 90W | [SPV+] Represents:Micro-Step Precision Fine Tuning + Enhanced 24/7 Heavy-Duty Industrial Hardware | Micro-Step Precision Fine Tuning (<0.5mV RMS noise floor) with Transient SuppressionPrimary Applications: High-power continuous thermal stress testing, sensitive sensor calibration burn-in | $843In Stock · DDP Air |
EN
eTM-L303SPD+ - WHOLESALE Volume Batch Pricing for Labs & ATE
eTM-L303SPD+ - Industrial Validation Industrial Grade
01. Embedded Systems & IoT Device R&D
Ultra-low ripple architecture provides clean, regulated direct current for microcontroller prototyping and sensor boards.
02. PCB Repair & Short-Circuit Millivolt Tracing
Independent Constant Voltage (CV) and Constant Current (CC) auto-crossover enables safe short-circuit tracking.
03. University Engineering Labs & Production EOL
Rugged steel enclosure and comprehensive 5-fold electronic protection withstand daily multi-user handling.
Procurement Comparison: Traditional Distribution vs. Direct Online Sourcing Objective Total Cost of Ownership (TCO) & Lead-Time Analysis
ROI Analysis | Evaluation Metric | Traditional Multi-Tier Distributors (Tektronix / Keysight / Chroma) | Bench Power Supply (Direct Online Sourcing) |
|---|---|---|
| Equipment Acquisition Cost | 3x to 5x higher catalog list prices | $716 (Direct Catalog Pricing · 70% to 80% Cost Advantage) |
| Lead Time & Stock Availability | 12 to 24 weeks backorder lead time | In Stock · 1–3 Working Days Dispatch · ~10 Working Days Transit (DDP) |
| Purchasing Workflow | Complex multi-tier RFQs & sales rep cycles | Instant Online Checkout or 1-Click Formal PI |
| 110V / 220V Grid Compatibility | Region-locked SKUs or bulky external transformers | Full Rated Output up to 3000W on 110V & 220V |
Equipment Acquisition Cost
Traditional Multi-Tier Distributors (Tektronix / Keysight / Chroma) 3x to 5x higher catalog list prices
Bench Power Supply $716 (Direct Catalog Pricing · 70% to 80% Cost Advantage)
Lead Time & Stock Availability
Traditional Multi-Tier Distributors (Tektronix / Keysight / Chroma) 12 to 24 weeks backorder lead time
Bench Power Supply In Stock · 1–3 Working Days Dispatch · ~10 Working Days Transit (DDP)
Purchasing Workflow
Traditional Multi-Tier Distributors (Tektronix / Keysight / Chroma) Complex multi-tier RFQs & sales rep cycles
Bench Power Supply Instant Online Checkout or 1-Click Formal PI
110V / 220V Grid Compatibility
Traditional Multi-Tier Distributors (Tektronix / Keysight / Chroma) Region-locked SKUs or bulky external transformers
Bench Power Supply Full Rated Output up to 3000W on 110V & 220V
Frequently Asked Questions — Procurement & Technical Verification Buyer FAQ
Q1: Can I buy this model online in-stock with immediate dispatch?
Yes. You can purchase directly online on this official catalog page. Orders dispatch within 1–3 working days with approx. 10 working days transit via DDP air express. We support Credit/Debit Card, PayPal, and formal Proforma Invoice (PI) for corporate wire transfers.
Q2: How does international shipping and customs clearance work?
Every order includes Free Global Air Express under Delivered Duty Paid (DDP) terms (~10 working days door-to-door). All import customs clearance and tariffs are fully prepaid.
Q3: What is the warranty and return policy?
Every unit undergoes a 4–8 hour full-load burn-in chamber test before dispatch. We provide a 1-year official hardware warranty with direct engineering support.
Q4: Can the unit deliver full wattage on 110V/120V AC input?
Yes. All models up to 3000W deliver 100% rated power on 110V–130V lines without thermal de-rating. Models exceeding 1500W at 110V ship with heavy-duty industrial open cable leads.
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