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onsemi SA5V0CA
- Part No.:
- SA5V0CA
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA5V0CA.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:4,191
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Product details
Overview
SA5V0CA from Fairchild Semiconductor is a 500 W bidirectional transient voltage suppressor (TVS) diode in DO-15 package, designed for clamping ESD and surge transients in power and signal lines. It features a 5.0 V reverse stand-off voltage (VRWM), 6.4–7.0 V breakdown voltage (VBR), 9.2 V clamping voltage at 54.3 A peak pulse current, and operates up to +175 °C junction temperature.
For engineers reviewing the SA5V0CA datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, bidirectional clamping behavior, thermal derating curves, DO-15 mechanical interface details, and direct alternatives for overvoltage protection design in industrial power supplies, automotive body electronics, and USB/serial port interfaces.
Technical Context
The SA5V0CA is a glass-passivated, bidirectional TVS diode optimized for fast response (<5.0 ns) and low incremental surge resistance. Its symmetrical I-V characteristics apply equally in both directions, enabling robust protection of AC-coupled or floating signal paths without polarity concerns.
It delivers 500 W peak pulse power on the standardized 10/1000 μs waveform, with clamping performance validated at 54.3 A IPPM and <1.0 μA reverse leakage above 10 V. The device sustains non-repetitive forward surge currents up to 70 A (8.3 ms half-sine) and operates across –65 °C to +175 °C storage and junction temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 500 W - supports high-energy surge events per IEC 61000-4-5 Level 4 (4 kV/2 Ω) |
| Reverse Stand-off Voltage (VRWM) | 5.0 V - maximum continuous working voltage before clamping initiates |
| Breakdown Voltage (VBR) | 6.4–7.0 V @ 10 mA - guaranteed conduction onset threshold with tight tolerance |
| Clamping Voltage (VC) | 9.2 V @ 54.3 A - limits downstream voltage stress during surge with minimal overshoot |
| Peak Pulse Current (IPPM) | 54.3 A - quantifies maximum transient current the device safely diverts |
| Reverse Leakage (IR) | <600 μA @ VRWM - ensures negligible standby power loss in low-power systems |
| Junction Temperature Range | +175 °C max - enables use in under-hood automotive or high-ambient industrial environments |
Pinout & Package
SA5V0CA uses the industry-standard DO-15 axial leaded package with no cathode band (bidirectional configuration). Leads are tinned copper, 0.375" length, rated for 1.0 W steady-state dissipation at 75 °C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Surge current path terminal | No polarity marking; either lead serves as input/output for bidirectional clamping |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term reliability and stable VBR under humidity and thermal cycling stress |
| Fast response time | <5.0 ns turn-on - protects sensitive ICs before transient energy couples into circuitry |
| Low incremental surge resistance | Minimizes VC rise under high di/dt, improving clamping precision for fast-rising transients |
| Excellent clamping capability | VC/VBR ratio = 1.37 - among lowest in 500 W DO-15 TVS family for superior voltage limiting |
Applications
| Industrial Power Input Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: 24 V DC power rail in programmable logic controllers exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Primary surge shunt element placed upstream of DC-DC converter input. Use Value: Clamps 500 W transients to ≤9.2 V, preventing overvoltage damage to 5 V/3.3 V regulator ICs and microcontrollers. |
Use Scenario: LIN bus transceiver power and signal lines subject to battery reversal and jump-start surges. IC Role / Device Role / Timing Role: Bidirectional clamping device across VCC and LIN line to ground. Use Value: Symmetric clamping preserves signal integrity during ±100 V transients while maintaining <1 μA leakage at 5 V operation. |
| USB 2.0 Data Line Protection | RS-485 Transceiver Interface |
Use Scenario: D+ and D− lines of embedded USB host ports vulnerable to ESD per IEC 61000-4-2 ±15 kV contact discharge. IC Role / Device Role / Timing Role: Low-capacitance TVS pair (one per line) referenced to ground. Use Value: Sub-5 ns response captures ESD events before transceiver input stages break down; 9.2 V VC avoids data corruption. |
Use Scenario: Termination resistors and transceiver pins in factory automation networks subjected to cable-induced lightning surges. IC Role / Device Role / Timing Role: Common-mode TVS across A/B differential pair and ground. Use Value: 500 W rating handles multi-kV induced surges; DO-15 form factor allows through-hole mounting near connector entry point. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0CA | DO-214AA package; 600 W rating; slightly higher VC (9.6 V @ 52.1 A); lower IR (1.0 μA max @ VRWM) | Better suited for surface-mount PCBs with space constraints; requires rework of footprint and thermal relief | Select when board real estate is limited and SMT assembly is preferred over axial leads |
| P6KE5.0CA | DO-15 package; 600 W rating; higher VC (11.4 V @ 43.9 A); wider VBR range (6.4–8.0 V) | Higher clamping voltage reduces protection margin for 5 V logic; same mechanical fit but less precise clamping | Choose only if legacy P6KE footprint reuse is mandatory and 11.4 V VC is acceptable for protected circuitry |
Compared with SMBJ5.0CA and P6KE5.0CA, SA5V0CA offers the tightest VBR tolerance (6.4–7.0 V), lowest clamping voltage (9.2 V), and optimal balance of surge capacity and package compatibility for through-hole industrial designs requiring predictable, low-overstress protection.
Availability
SA5V0CA is available at Aetrix Electronics and suitable for industrial power input protection, automotive body control modules, USB 2.0 data line protection, and RS-485 transceiver interface applications requiring stable component supply and long-lifecycle support.
Supply support for SA5V0CA 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
Fairchild Semiconductor was a leading designer of high-performance analog and discrete semiconductors, acquired by ON Semiconductor in 2016; its TVS portfolio remains widely deployed in industrial and automotive systems.
The SA5V0CA belongs to Fairchild's SAxxxC(A) series of 500 W DO-15 TVS diodes, engineered specifically for cost-sensitive, high-reliability overvoltage protection in harsh-environment power and communication interfaces.
FAQ
What does the "C" in SA5V0CA signify?
The "C" suffix in SA5V0CA denotes a bidirectional configuration, meaning the device provides symmetrical clamping in both polarities-no anode/cathode orientation is required during placement. This distinguishes it from unidirectional variants like SA5V0A, which require correct polarity alignment. SA5V0CA is therefore ideal for protecting AC signals, floating buses, or dual-rail systems where voltage reversals may occur.
Is SA5V0CA RoHS compliant?
Yes, SA5V0CA is RoHS compliant per EU Directive 2011/65/EU and meets lead-free soldering requirements. Fairchild's Rev. D datasheet confirms Pb-free terminations and halogen-free construction. Aetrix Electronics supplies only RoHS-compliant lots with full material declarations and test reports traceable to manufacturing lot numbers.
What is the maximum allowable ambient temperature for continuous operation of SA5V0CA?
SA5V0CA is rated for 1.0 W steady-state power dissipation at 75 °C ambient with 0.375" lead length. Derating begins above 75 °C per Figure 5 in the datasheet, reaching zero watt capability at 175 °C. For reliable long-term operation, ambient temperature should be kept ≤75 °C unless thermal management (e.g., heatsinking, airflow) is implemented per the published derating curve.
Can SA5V0CA be used in parallel to increase surge current handling?
No-SA5V0CA must not be paralleled without external balancing resistors due to VBR mismatch between units, which causes uneven current sharing and potential thermal runaway. The datasheet does not specify matched binning or parallel-use guidance. For higher IPPM, select a single higher-rated device such as SA6V0CA or switch to a 600 W family like SMBJ5.0CA.
Does SA5V0CA meet IEC 61000-4-5 surge immunity standards?
SA5V0CA is capable of meeting IEC 61000-4-5 Level 4 (4 kV line-to-ground, 2 Ω source impedance) when properly mounted with short traces and adequate PCB copper area. Its 500 W 10/1000 μs rating and 54.3 A IPPM align directly with that standard's test waveform. System-level validation is still required, but SA5V0CA provides the foundational clamping performance needed for compliance.
SA5V0CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 54.3A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
SA5V0CA FAQ
1.How can I place an order for SA5V0CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SA5V0CA 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 SA5V0CA reliable?
The price and inventory of SA5V0CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA5V0CA is usually 5 days.
3.What payment methods are accepted for SA5V0CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA5V0CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA5V0CA?
SA5V0CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA5V0CA 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 SA5V0CA?
For technical support, including SA5V0CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA5V0CA requirements.
6.How does Aetrix verify that SA5V0CA is sourced from the original manufacturer or authorized distributors?
All SA5V0CA 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 SA5V0CA meets industry standards.
7.What is the process for return or replacement of SA5V0CA?
All SA5V0CA units undergo pre-shipment inspection (PSI). If there is an issue with SA5V0CA, 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 SA5V0CA part is unused and in its original packaging.
Return procedure for SA5V0CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA5V0CA Tags
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