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Nexperia USA Inc. PTVS43VS1UTR-QX
- Part No.:
- PTVS43VS1UTR-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS43VS1UTR-QX.pdf
- Description:
- TVS DIODE 43VWM 69.4VC CFP3
- Quantity:
- Payment:
- Shipping:
Inventory:2,990
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Product details
Overview
PTVS43VS1UTR-Q from Nexperia is a unidirectional 400 W transient voltage suppressor (TVS) diode in SOD123W (CFP3) package, designed for high-temperature overvoltage protection in automotive power rails. It features 43 V reverse standoff voltage (VRWM), 69.4 A peak pulse current (IPPM), 51.6 V clamping voltage (VCL) at 5 mA, and operates up to 185 °C junction temperature.
For engineers reviewing the PTVS43VS1UTR-Q datasheet, PTVS43VS1UTR-Q pinout, PTVS43VS1UTR-Q application, or PTVS43VS1UTR-Q equivalent, key selection criteria include clamping performance under 10/1000 μs surge, AEC-Q101 qualification, thermal resistance to solder point (18 K/W), and compatibility with high-reliability automotive power supply protection layouts.
Technical Context
This unidirectional TVS diode operates as a clamping device in parallel with sensitive circuitry, triggering conduction when transient voltage exceeds its 43 V VRWM threshold. Its breakdown voltage (VBR) is specified at 47.8–52.8 V (min–max) with 5 mA test current, ensuring predictable turn-on behavior across temperature.
It complies with IEC 61643-321 for 10/1000 μs waveform testing and delivers stable 400 W peak pulse power (PPPM) up to 125 °C, derating to ~58% at 185 °C per Figure 2. The cathode-anode polarity is marked by a bar on the SOD123W body, enabling correct PCB orientation during automated placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 43 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 36–40 V nominal automotive systems. |
| VCL @ IPPM | 51.6 V - Clamping voltage at 69.4 A peak pulse current; limits downstream voltage stress during ISO 7637-2 Pulse 1/2a/5a transients. |
| PPPM | 400 W - Peak pulse power handling per IEC 61643-321 (10/1000 μs); supports robust protection against load dump and inductive switching events. |
| Tj max | 185 °C - Maximum junction temperature rating; enables operation in under-hood environments without derating penalties typical of standard TVS devices. |
| Rth(j-sp) | 18 K/W - Thermal resistance from junction to solder point; ensures efficient heat transfer to PCB copper, critical for sustained surge duty cycles. |
| IRM | 0.001 μA @ VRWM - Ultra-low reverse leakage; minimizes standby power loss in always-on vehicle modules like body control units. |
| AEC-Q101 | Qualified - Certified for automotive discrete semiconductors; includes HTOL, temperature cycling, and ESD (30 kV contact/air) stress testing. |
Pinout & Package
SOD123W (CFP3) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body height, flat leads, cathode-marked with molded bar. Optimized for high-density automotive PCB layouts and reflow/wave soldering per Figures 6–7.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to protected line (e.g., battery rail); marking bar identifies this terminal; carries full surge current during clamping. |
| 2 (A) | Anode | Connected to ground reference plane; low-inductance path essential for effective transient energy shunting. |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature stability | Junction-rated to 185 °C with no parameter drift - eliminates need for thermal derating in engine compartment designs. |
| Low-profile SMD package | 1.0 mm max height - enables placement beneath connectors or in constrained spaces such as ADAS sensor modules. |
| AEC-Q101 qualification | Includes HTRB, TC, AC/DC life test, and ESD validation - reduces qualification burden for Tier 1 automotive suppliers. |
| Ultra-low leakage | 1 nA IRM at VRWM - preserves battery life in always-on domains (e.g., telematics, alarm systems) over 15-year vehicle lifetime. |
| Controlled clamping ratio | VCL/VRWM = 1.20 - tight 20% overvoltage margin ensures reliable IC-level protection without excessive voltage headroom. |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) CAN Bus Line |
|---|---|
|
Use Scenario: Protection against load dump transients (ISO 7637-2 Pulse 5a) on 12 V battery-fed ECU inputs. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery rail and input filter capacitor. Use Value: Limits voltage to ≤51.6 V during 400 W surges, preventing damage to LDOs and microcontrollers rated for 45 V absolute maximum. |
Use Scenario: ESD and fast transient suppression on CAN_H/CAN_L lines in BCM gateways. IC Role / Device Role / Timing Role: Secondary protection stage after common-mode choke, referenced to chassis ground. Use Value: Withstands 30 kV contact ESD per IEC 61000-4-2 while maintaining <1 nA leakage to avoid CAN bias current errors. |
| ADAS Camera Power Supply | Electric Power Steering (EPS) Motor Driver |
|
Use Scenario: Overvoltage protection on 5 V/3.3 V camera module supplies exposed to ignition noise and alternator ripple. IC Role / Device Role / Timing Role: Local clamping device mounted adjacent to DC-DC converter output. Use Value: 18 K/W Rth(j-sp) enables rapid heat dissipation into 1 cm² copper pad, sustaining repeated 10/1000 μs pulses without thermal runaway. |
Use Scenario: Transient suppression on high-side MOSFET gate drive lines subject to inductive kickback. IC Role / Device Role / Timing Role: Low-capacitance TVS placed between gate and source to clamp Miller-induced spikes. Use Value: 43 V VRWM aligns with 40 V-rated gate drivers; 51.6 V VCL prevents unintended turn-on of 60 V Si MOSFETs during fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A-Q | 43 V VRWM, 300 W PPPM, SMA package (2.4 mm height), Tj max = 150 °C | Larger footprint and lower power rating; not AEC-Q101 qualified | Select only for non-automotive industrial use where space and thermal budget allow larger package. |
| TPSMA6L43A | 43 V VRWM, 600 W PPPM, SMA package, Tj max = 175 °C, AEC-Q101 qualified | Higher power but 2.4 mm height limits placement in ultra-thin modules; higher VCL (58.1 V) | Prefer when surge energy exceeds 400 W; accept trade-off of taller profile and +6.5 V clamping overhead. |
Compared with SMAJ43A-Q and TPSMA6L43A, PTVS43VS1UTR-Q uniquely combines AEC-Q101 qualification, 1 mm profile, and 400 W capability-making it optimal for space-constrained, high-temperature automotive power nodes where both reliability and board area are critical.
Availability
PTVS43VS1UTR-Q is available at Aetrix Electronics and suitable for automotive power supply protection, ADAS camera modules, and electric power steering systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PTVS43VS1UTR-Q 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 logic, discrete, and MOSFET solutions, with deep expertise in automotive-grade components.
The PTVSxS1UTR-Q series belongs to Nexperia's AEC-Q101-qualified TVS portfolio, engineered specifically for harsh-environment automotive power rail protection where thermal resilience and surge immunity are non-negotiable.
FAQ
What is the clamping voltage of PTVS43VS1UTR-Q at its rated peak pulse current?
The clamping voltage (VCL) is 51.6 V measured at 69.4 A peak pulse current (IPPM), per Table 8 of the datasheet. This value is guaranteed under IEC 61643-321 10/1000 μs waveform conditions and defines the maximum voltage seen by downstream circuitry during worst-case surge events.
Does PTVS43VS1UTR-Q support reflow soldering, and what is the recommended footprint?
Yes, it supports lead-free reflow soldering using the CFP3 (SOD123W) footprint shown in Figure 6: 1.2 mm × 1.4 mm solder land, 0.1 mm stencil thickness, and 4.4 mm × 2.9 mm overall occupied area. The design accommodates standard JEDEC J-STD-020 profiles without thermal stress.
How does the 185 °C junction rating impact system-level thermal design?
The 185 °C Tj max allows direct placement near heat sources (e.g., motor drivers or DC-DC converters) without external heatsinking. With Rth(j-sp) = 18 K/W, a 40 °C ambient rise above PCB results in only ~720 mW self-heating at 400 W surge - well within safe limits due to short pulse duration.
Is PTVS43VS1UTR-Q compatible with wave soldering processes?
Yes, it is qualified for wave soldering per Figure 7: uses dual 3.0 mm solder lands with 2.4 mm spacing, 8.3 mm total length, and solder resist-defined dummy tracks. The 1 mm profile prevents tombstoning, and the flat leads ensure consistent wetting across conveyor-based wave systems.
PTVS43VS1UTR-QX 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):
- 43V (Max)
- Voltage - Breakdown (Min):
- 47.8V
- Voltage - Clamping (Max) @ Ipp:
- 69.4V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 185°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
PTVS43VS1UTR-QX FAQ
1.How can I place an order for PTVS43VS1UTR-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS43VS1UTR-QX 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 PTVS43VS1UTR-QX reliable?
The price and inventory of PTVS43VS1UTR-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS43VS1UTR-QX is usually 5 days.
3.What payment methods are accepted for PTVS43VS1UTR-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS43VS1UTR-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS43VS1UTR-QX?
PTVS43VS1UTR-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS43VS1UTR-QX 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 PTVS43VS1UTR-QX?
For technical support, including PTVS43VS1UTR-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS43VS1UTR-QX requirements.
6.How does Aetrix verify that PTVS43VS1UTR-QX is sourced from the original manufacturer or authorized distributors?
All PTVS43VS1UTR-QX 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 PTVS43VS1UTR-QX meets industry standards.
7.What is the process for return or replacement of PTVS43VS1UTR-QX?
All PTVS43VS1UTR-QX units undergo pre-shipment inspection (PSI). If there is an issue with PTVS43VS1UTR-QX, 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 PTVS43VS1UTR-QX part is unused and in its original packaging.
Return procedure for PTVS43VS1UTR-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS43VS1UTR-QX Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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Diodes Incorporated
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