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Nexperia USA Inc. PTVS48VS1UR,115
- Part No.:
- PTVS48VS1UR,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS48VS1UR,115.pdf
- Description:
- TVS DIODE 48VWM 77.4VC SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:6,567
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Product details
Overview
PTVS48VS1UR,115 from Nexperia is a unidirectional 400 W Transient Voltage Suppressor (TVS) in SOD123W (CFP3) package, designed for clamping transient overvoltages on DC power rails. It features a 48 V reverse standoff voltage (VRWM), 58.9 V maximum breakdown voltage (VBR), 77.4 V clamping voltage (VCL) at 5.2 A peak pulse current (IPPM), and <0.001 µA reverse leakage at VRWM - used in industrial power supply protection circuits.
For engineers reviewing the PTVS48VS1UR,115 datasheet, PTVS48VS1UR,115 pinout, PTVS48VS1UR,115 application, or PTVS48VS1UR,115 equivalent, key selection criteria include clamping performance under IEC 61643-321 10/1000 µs waveform, thermal resistance to solder point (Rth(j-sp) = 18 K/W), AEC-Q101 qualification status, and compatibility with high-density SMT layouts requiring ≤1 mm profile.
Technical Context
This unidirectional TVS operates as a clamping device in parallel with protected circuitry, conducting only when reverse voltage exceeds VRWM = 48 V. Its silicon avalanche structure delivers precise VBR = 53.3–58.9 V (min–max) and low dynamic impedance to limit VCL to 77.4 V at IPPM = 5.2 A.
It complies with IEC 61643-321 for 10/1000 µs surge testing and supports operation from –55 °C to +150 °C junction temperature. The device is qualified to AEC-Q101 (per revision history v.4), though automotive use requires verification against latest qualification status per product change notice.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPPM) | 400 W - sustains 10/1000 µs surges up to 400 W without failure, enabling robust protection in 24–48 V industrial systems. |
| Reverse Standoff Voltage (VRWM) | 48 V - maximum continuous DC voltage before significant leakage; sets operating margin above nominal 48 V rail. |
| Clamping Voltage (VCL) | 77.4 V at IPPM = 5.2 A - limits transient voltage seen by downstream ICs during surge events. |
| Breakdown Voltage (VBR) | 53.3–58.9 V at IR = 1 mA - defines onset of avalanche conduction; tight tolerance ensures predictable turn-on. |
| Reverse Leakage (IRM) | <0.001 µA at VRWM - negligible standby power loss and no measurable loading on 48 V supply under normal conditions. |
| Package | SOD123W (CFP3) - 2.6 × 1.7 × 1.0 mm surface-mount package with 1 mm height, optimized for space-constrained PCBs. |
| Thermal Resistance (Rth(j-sp)) | 18 K/W - enables efficient heat transfer from junction to cathode solder point, supporting sustained surge duty in thermally constrained layouts. |
Pinout & Package
SOD123W (CFP3) plastic surface-mount package: 2-terminal, flat lead, cathode-bar marked; dimensions 2.6 mm × 1.7 mm × 1.0 mm; standard footprint per Nexperia sod123w_fr (reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to protected line (e.g., 48 V rail); marking bar identifies this terminal; carries full surge current during clamping. |
| 2 | Anode (A) | Connected to ground reference; completes conduction path during transient; must be low-inductance ground plane for effective clamping. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse rating | Enables protection against high-energy transients (e.g., ISO 7637-2 Pulse 1/2b in industrial control) without derating at Tj ≤ 25 °C. |
| AEC-Q101 qualified | Validated for stress reliability in automotive-adjacent environments (per revision v.4), supporting deployment in harsh industrial settings. |
| 1 mm package height | Allows placement beneath connectors or shields; compatible with automated optical inspection (AOI) and low-profile enclosures. |
| Low IRM & tight VBR | <0.001 µA leakage avoids battery drain in always-on systems; ±5% VBR tolerance ensures consistent clamping across production lots. |
| IEC 61643-321 compliance | Guarantees validated performance under standardized 10/1000 µs surge waveform - eliminates need for custom surge validation. |
Applications
| Industrial Power Supply Protection | Programmable Logic Controller (PLC) I/O Modules |
|---|---|
|
Use Scenario: Protecting 48 V DC input rails in DIN-rail mounted power supplies against load dump and switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed directly across input terminals to clamp surges before they reach upstream regulators or filtering stages. Use Value: Limits transient voltage to ≤77.4 V, preventing damage to 100 V-rated MOSFETs and reducing need for oversized input capacitors. |
Use Scenario: Safeguarding digital input channels in modular PLC backplanes exposed to field-wiring induced surges. IC Role / Device Role / Timing Role: TVS connected between each 24/48 V input line and common ground to suppress fast-rising ESD and inductive kickback. Use Value: Achieves sub-100 ns response time and withstands repeated 4 kV HBM ESD events without parameter shift. |
| Factory Automation Sensors | Telecom Remote Power Feeds |
|
Use Scenario: Shielding 4–20 mA loop-powered sensors in manufacturing cells from ground potential differences and cable-coupled noise. IC Role / Device Role / Timing Role: TVS installed at sensor interface connector to shunt transients before signal conditioning amplifiers. Use Value: Maintains <0.001 µA leakage to preserve loop accuracy while clamping 10/1000 µs surges up to 400 W. |
Use Scenario: Protecting 48 V phantom power feeds in remote radio units (RRUs) and fiber access nodes from lightning-induced surges. IC Role / Device Role / Timing Role: TVS deployed at DC input stage of PoE-like 48 V distribution to prevent cascade failure in multi-drop architectures. Use Value: Delivers 77.4 V clamping at 5.2 A with Rth(j-sp) = 18 K/W, enabling reliable operation without heatsinking in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ48A (onsemi) | Same VRWM (48 V), but SMA package (4.5 × 2.7 × 2.2 mm); PPPM = 400 W; VCL = 77.4 V at 5.2 A - identical clamping, larger footprint. | Requires more PCB area; less suitable for ultra-thin modules; same thermal performance only with enhanced pad layout. | Select if legacy SMA footprint exists or higher thermal mass is needed; avoid where height ≤1 mm is mandatory. |
| 1.5SMC47A (Littelfuse) | DO-214AB package (7.1 × 6.2 × 2.6 mm); PPPM = 1500 W; VRWM = 47 V; VCL = 77.0 V at 19.5 A - higher power, lower VRWM, much larger size. | Over-specified for 48 V rail protection; excessive size incompatible with dense SMT layouts; better for primary-side AC surge. | Choose only for high-reliability 48 V systems needing >1 kW surge margin; not recommended for space-constrained designs. |
Compared with SMAJ48A and 1.5SMC47A, PTVS48VS1UR,115 offers identical clamping performance in a 60% smaller footprint and 55% lower profile - critical for next-gen industrial edge controllers where board real estate and mechanical clearance are constrained.
Availability
PTVS48VS1UR,115 is available at Aetrix Electronics and suitable for industrial power supply protection, PLC I/O modules, factory automation sensors, and telecom remote power feeds requiring stable component supply and long-term obsolescence management.
Supply support for PTVS48VS1UR,115 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.
The PTVSxS1UR series targets compact, high-efficiency transient protection for industrial and automotive-adjacent power systems - emphasizing low-profile SMT integration, AEC-Q101 reliability, and IEC-compliant surge handling.
FAQ
Is PTVS48VS1UR,115 qualified for automotive applications?
Per Nexperia revision history v.4 (2025), PTVS48VS1UR,115 is listed among 33 types granted AEC-Q101 qualification. However, the datasheet notes that automotive qualification status was removed for some variants in prior revisions - confirm current status via Nexperia's official product change notice or part-specific qualification report before automotive deployment.
What is the maximum surge current it can handle?
At VRWM = 48 V, PTVS48VS1UR,115 delivers IPPM = 5.2 A under IEC 61643-321 10/1000 µs waveform, corresponding to its 400 W PPPM rating. This value is derived from VCL = 77.4 V and is validated across production lots - no derating required at Tj ≤ 25 °C.
How does its thermal performance compare to larger packages?
With Rth(j-sp) = 18 K/W, PTVS48VS1UR,115 transfers heat more efficiently to the cathode solder point than SMA- or DO-214AB-packaged equivalents (typically >30 K/W). This allows higher surge repetition rates in confined layouts without thermal runaway, provided the cathode pad meets Nexperia's 1 cm² copper recommendation.
Can it replace PTVS45VS1UR or PTVS51VS1UR in existing designs?
No - VRWM is strictly 48 V (not adjustable), and VBR range (53.3–58.9 V) is specific to this variant. Substituting with PTVS45VS1UR (VRWM = 45 V) risks premature conduction; PTVS51VS1UR (VRWM = 51 V) may fail to clamp at 48 V surges. Always match VRWM to system nominal voltage plus safety margin.
PTVS48VS1UR,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SOD-123W
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 48V
- Voltage - Breakdown (Min):
- 53.3V
- Voltage - Clamping (Max) @ Ipp:
- 77.4V
- Current - Peak Pulse (10/1000µs):
- 5.2A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
PTVS48VS1UR,115 FAQ
1.How can I place an order for PTVS48VS1UR,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS48VS1UR,115 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 PTVS48VS1UR,115 reliable?
The price and inventory of PTVS48VS1UR,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS48VS1UR,115 is usually 5 days.
3.What payment methods are accepted for PTVS48VS1UR,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS48VS1UR,115 transactions.
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4.How is shipping managed for PTVS48VS1UR,115?
PTVS48VS1UR,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS48VS1UR,115 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 PTVS48VS1UR,115?
For technical support, including PTVS48VS1UR,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS48VS1UR,115 requirements.
6.How does Aetrix verify that PTVS48VS1UR,115 is sourced from the original manufacturer or authorized distributors?
All PTVS48VS1UR,115 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 PTVS48VS1UR,115 meets industry standards.
7.What is the process for return or replacement of PTVS48VS1UR,115?
All PTVS48VS1UR,115 units undergo pre-shipment inspection (PSI). If there is an issue with PTVS48VS1UR,115, 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 PTVS48VS1UR,115 part is unused and in its original packaging.
Return procedure for PTVS48VS1UR,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS48VS1UR,115 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
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