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Diodes Incorporated SA6V5A-T
- Part No.:
- SA6V5A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA6V5A-T.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:6,847
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Product details
Overview
SA6V5A-T from Diodes Incorporated is a unidirectional 500W transient voltage suppressor (TVS) diode in DO-15 package, rated for 6.5V standoff voltage, 7.22–7.98V breakdown at 10mA, 11.2V clamping at 44.7A peak pulse current, and operating from –65°C to +175°C. It protects DC power rails and I/O lines against ESD, lightning-induced surges, and inductive switching transients in industrial power supplies and automotive control modules.
For engineers reviewing the SA6V5A-T datasheet, SA6V5A-T pinout, SA6V5A-T application, or SA6V5A-T equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, peak pulse current handling under 10/1000µs waveform, thermal derating above 25°C ambient, and DO-15 lead-form compatibility with legacy PCB footprints.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ps typical), low leakage (<400 µA at 6.5V), and stable clamping performance across temperature. Its unidirectional configuration provides asymmetric protection-low forward voltage conduction during overvoltage events on positive rail only.
The device operates in avalanche mode above VBR, delivering precise voltage limiting without triggering latch-up in downstream circuitry. Its 500W peak pulse rating (1.0 ms, non-repetitive) is validated per REA 10×1000 µs waveform, with derating to 1.0W steady-state at TL = 75°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VR) | 6.5 V - Maximum continuous reverse voltage before significant leakage; sets minimum system operating voltage margin. |
| Breakdown Voltage (VBR) | 7.22–7.98 V @ 10 mA - Confirmed avalanche onset range; ensures reliable triggering before protected IC damage threshold. |
| Clamping Voltage (VC) | 11.2 V @ 44.7 A - Measured peak voltage during 10/1000 µs surge; must remain below absolute max rating of downstream components. |
| Peak Pulse Power (PPK) | 500 W - Validated per non-repetitive 1.0 ms pulse; defines single-event surge energy absorption capability. |
| Operating Temperature | –65°C to +175°C - Full-range operation supports under-hood automotive and industrial motor drive environments. |
| Package | DO-15 - Through-hole molded plastic case with 9.5 mm lead length; compatible with standard wave-solder processes and IPC-7351 footprints. |
Pinout & Package
DO-15 package: axial-leaded, glass-passivated silicon die, cathode band marked on body. Leads are tin-plated, solderable per MIL-STD-202 Method 208, RoHS-compliant matte tin finish available.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive reference terminal for unidirectional clamping | Connected to ground or low-side return path; conducts during positive transients on cathode side. |
| Cathode | Protected line input terminal | Connected to supply rail or signal line; clamps voltage to ≤11.2 V when transient exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 500W Peak Pulse Power | Validated per 10/1000 µs waveform; enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source). |
| Fast Response Time | <1 ps - Limits voltage overshoot during nanosecond-scale ESD events (IEC 61000-4-2 ±8 kV contact). |
| Glass Passivation | Stable junction characteristics over life; prevents moisture ingress and parameter drift in humid environments. |
| DO-15 Mechanical Standardization | Compatible with legacy board layouts and automated insertion equipment; eliminates redesign cost for drop-in replacement. |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module |
|---|---|
Use Scenario: 12 V DC input rail exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping positive transients on main supply line upstream of DC/DC converter. Use Value: Clamps to 11.2 V within 1 ps, preventing overvoltage damage to 16 V-rated input capacitors and controller ICs. |
Use Scenario: LIN bus transceiver power pin subjected to battery disconnect spikes and ESD coupling. IC Role / Device Role / Timing Role: Standoff-limited suppression on VCC pin; blocks >6.5 V while maintaining <400 µA leakage at nominal 12 V. Use Value: Enables fail-safe operation during ISO 10605 ±8 kV ESD events without disrupting LIN communication timing. |
| Telecom AC-DC Adapter Input | Motor Drive Gate Driver Supply |
Use Scenario: Secondary-side 5 V/12 V output of isolated flyback converter subject to cross-talk surges from primary side. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on regulated output, referenced to local ground. Use Value: 11.2 V clamping holds output within safe margin of 15 V-rated LDOs and microcontroller VDD pins. |
Use Scenario: Isolated gate driver auxiliary supply (e.g., 15 V bias for SiC MOSFET drivers) exposed to Miller-induced transients. IC Role / Device Role / Timing Role: Fast-acting clamp on high-side driver VB rail to prevent false turn-on during dV/dt events. Use Value: Sub-1 ps response avoids propagation delay in critical gate timing paths while absorbing 44.7 A surge current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| P6KE6V8A | Same DO-15 package; 6.8 V standoff, 10.5 V clamping @ 47.6 A; higher PPK (600 W) | Lower clamping voltage margin but tighter VR/VC ratio; better suited for 5 V logic rails with narrow voltage headroom | Select when clamping voltage must stay below 10.5 V and peak surge energy exceeds 500 W |
| SMAJ6.5A | SMA package (SMT); 6.5 V standoff, 11.2 V clamping @ 43.2 A; lower PPK (400 W) | Surface-mount footprint reduces board space; unsuitable for high-temperature through-hole mounting or manual repair | Select for space-constrained designs where reflow compatibility and automated assembly outweigh through-hole reliability needs |
Compared with SA6V5A-T, P6KE6V8A offers higher surge capacity and tighter clamping but requires layout verification for 600 W thermal dissipation, while SMAJ6.5A trades mechanical robustness and legacy footprint support for SMT scalability and lower profile.
Availability
SA6V5A-T is available at Aetrix Electronics and suitable for industrial power supply protection, automotive body control modules, telecom adapter inputs, and motor drive gate driver supplies requiring stable component supply and long-term obsolescence management.
Supply support for SA6V5A-T 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the Philippines.
SA6V5A-T belongs to Diodes' SA-series TVS family, engineered specifically for high-energy transient suppression in harsh-environment power systems where reliability, temperature stability, and legacy package compatibility are critical.
FAQ
Is SA6V5A-T RoHS compliant?
Yes, SA6V5A-T is RoHS compliant per EU Directive 2011/65/EU, with matte tin lead finish and exemptions applied for high-temperature soldering and glass passivation per Annexes 5 and 7. Certificate of Compliance is available upon request for batch-specific traceability.
What is the maximum allowable lead temperature during soldering?
The maximum lead temperature for SA6V5A-T is 260°C for 10 seconds during wave soldering, per MIL-STD-202 Method 208. Reflow profiles must not exceed 260°C peak for more than 30 seconds to avoid internal bond wire degradation or package delamination.
Can SA6V5A-T be used in bidirectional configurations?
No - SA6V5A-T is unidirectional only. The "A" suffix denotes unidirectional construction. For bidirectional protection at 6.5 V standoff, use SA6V5CA, which has identical clamping and power ratings but symmetrical breakdown in both polarities.
How does thermal derating affect its 500W rating?
At ambient temperatures above 25°C, SA6V5A-T's peak pulse power must be linearly derated per Figure 4 in DS21501 Rev. 12. At 75°C ambient, it retains ~65% of rated power (325 W), and at 125°C, ~35% (175 W), assuming 9.5 mm lead length and free-air conditions.
SA6V5A-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 44.7A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
SA6V5A-T FAQ
1.How can I place an order for SA6V5A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SA6V5A-T 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 SA6V5A-T reliable?
The price and inventory of SA6V5A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA6V5A-T is usually 5 days.
3.What payment methods are accepted for SA6V5A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA6V5A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA6V5A-T?
SA6V5A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA6V5A-T 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 SA6V5A-T?
For technical support, including SA6V5A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA6V5A-T requirements.
6.How does Aetrix verify that SA6V5A-T is sourced from the original manufacturer or authorized distributors?
All SA6V5A-T 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 SA6V5A-T meets industry standards.
7.What is the process for return or replacement of SA6V5A-T?
All SA6V5A-T units undergo pre-shipment inspection (PSI). If there is an issue with SA6V5A-T, 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 SA6V5A-T part is unused and in its original packaging.
Return procedure for SA6V5A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA6V5A-T Tags
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