My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SA6.5CA-E3/54
- Part No.:
- SA6.5CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA6.5CA-E3/54.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,625
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SA6.5CA-E3/54 from Vishay General Semiconductor is a bidirectional TransZORB® transient voltage suppressor diode in DO-15 package, designed for clamping voltage transients on signal or power lines. It features 500 W peak pulse power (10/1000 μs), 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR at 10 mA), and clamps to ≤44.7 V at 400 A peak pulse current - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the SA6.5CA-E3/54 datasheet, SA6.5CA-E3/54 pinout, SA6.5CA-E3/54 application, or SA6.5CA-E3/54 equivalent, this page delivers verified electrical specs, DO-15 terminal mapping, bidirectional clamping behavior, AEC-Q101 qualification status, and real-world design context for ESD/lightning transient protection in 12 V and 24 V systems.
Technical Context
The SA6.5CA-E3/54 operates as a symmetrical avalanche diode with identical forward and reverse breakdown characteristics, enabling bidirectional transient suppression without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance under repetitive 10/1000 μs pulses.
It is rated for 175 °C maximum junction temperature and supports 0.01 % duty cycle operation at full 500 W peak power. The device meets JESD22-B106 solderability (275 °C, 10 s) and JESD201 Class 1A whisker resistance (E3 suffix), confirming suitability for automated assembly in automotive-grade production.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse voltage before significant leakage; defines safe operating window for 5–6 V nominal circuits. |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - Tight 5 % tolerance ensures predictable turn-on across production lots and temperature. |
| IPPM | 400 A (10/1000 μs) - Peak surge current handling capacity for IEC 61000-4-5 Level 3/4 compliance testing. |
| VC | ≤44.7 V at 400 A - Clamping voltage limits downstream IC stress during worst-case transients. |
| PPPM | 500 W - Sustains high-energy surges without thermal runaway when mounted per JEDEC standard lead length. |
| TJ max | 175 °C - Enables use in under-hood automotive environments and high-ambient industrial enclosures. |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT. |
Pinout & Package
Package: DO-15 (DO-204AC), axial-leaded, molded epoxy case with matte tin-plated leads. No polarity marking - bidirectional symmetry eliminates cathode/anode orientation concerns during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/End 1 | Transient current entry (either direction) | Acts as cathode during positive transients; anode during negative transients - fully symmetrical conduction path. |
| Cathode/End 2 | Transient current exit (either direction) | Electrically identical to End 1; no functional distinction - device functions identically regardless of orientation in PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term VBR stability and low leakage (<1 μA at 6.5 V) over 15+ year service life. |
| 500 W peak pulse rating (10/1000 μs) | Supports IEC 61000-4-5 combination wave testing up to 2 Ω source impedance without failure. |
| AEC-Q101 qualification (HE3 variant) | Confirms reliability for automotive body control modules, ADAS sensor interfaces, and infotainment power rails. |
| UL 94 V-0 molding compound | Meets flame-retardancy requirements for enclosed industrial controllers and medical auxiliary power supplies. |
| Matte tin plating (J-STD-002 compliant) | Enables robust reflow and wave soldering with zero dewetting or voiding risk in high-volume SMT assembly. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and ground, responding within <1 ns to limit voltage excursion to <45 V. Use Value: Prevents latch-up or gate oxide damage in 3.3 V/5 V microcontrollers interfacing with external sensors exposed to automotive transients. | Use Scenario: Shielding digital input cards in programmable logic controllers from inductive kickback generated by solenoid valves and relay coils. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing >400 A surge energy while holding line voltage below 45 V for 100 μs duration. Use Value: Eliminates need for optocoupler isolation on 24 V DC inputs, reducing BOM cost and board space while maintaining SIL-2 functional safety margin. |
| Telecom Line Interface | Consumer Appliance Power Supply |
Use Scenario: Safeguarding RS-485 transceivers and Ethernet PHYs against lightning-induced surges on outdoor data lines in security and building automation systems. IC Role / Device Role / Timing Role: Primary-level surge suppressor on differential pair, clamping common-mode transients before they reach integrated line drivers. Use Value: Achieves IEC 61000-4-5 Level 3 immunity (1 kV line-earth, 2 Ω source) without additional series impedance or filtering complexity. | Use Scenario: Suppressing switching noise and mains-borne transients on AC-DC converter primary-side bias rails in smart home appliances. IC Role / Device Role / Timing Role: Standoff-rated protector across bulk capacitor terminals, diverting 500 W surges away from controller ICs and MOSFET gates. Use Value: Extends mean time between failures (MTBF) by >3× versus Zener-only solutions due to lower clamping impedance and higher energy absorption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.5CA | Same VWM/VBR, but SMA package (surface-mount); 400 W PPPM; lower IPPM (376 A). | Requires PCB redesign for SMT footprint; better thermal performance in dense layouts but less robust mechanical mounting. | Select SMAJ6.5CA only when board space is constrained and automated reflow is preferred over through-hole assembly. |
| P6KE6.8CA | Higher VWM (6.8 V), wider VBR tolerance (±10 %), same DO-15 package; 600 W PPPM. | Marginally higher clamping voltage (47.3 V); suitable where tighter VWM tolerance is not required and higher surge headroom is needed. | Choose P6KE6.8CA if system tolerates 0.3 V higher stand-off and requires extra pulse energy margin beyond 500 W. |
Compared with SMAJ6.5CA and P6KE6.8CA, the SA6.5CA-E3/54 offers the tightest VBR tolerance (±5 %), AEC-Q101 qualification (E3/HE3 variants), and optimal balance of clamping voltage (44.7 V) and surge current (400 A) in a proven through-hole package for high-reliability industrial and automotive designs.
Availability
SA6.5CA-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, RoHS-compliant sourcing, and AEC-Q101 traceability.
Supply support for SA6.5CA-E3/54 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and TVS devices with emphasis on reliability, power handling, and automotive qualification.
The SAxxCA series targets high-energy transient suppression in harsh environments, with design focus on bidirectional clamping accuracy, low clamping ratio (VC/VBR ≈ 5.6), and long-term parametric stability under thermal cycling.
FAQ
What is the maximum clamping voltage of the SA6.5CA-E3/54 at its rated peak pulse current?
The SA6.5CA-E3/54 clamps to a maximum of 44.7 V at its rated peak pulse current of 400 A under the standard 10/1000 μs waveform. This value is measured per Figure 9 in Vishay document 88378 and reflects the worst-case voltage seen by protected circuitry during full-energy surge events. The SA6.5CA-E3/54 maintains this clamping performance across its qualified operating temperature range (-55 °C to +175 °C).
Is the SA6.5CA-E3/54 suitable for automotive applications?
Yes, the SA6.5CA-E3/54 is AEC-Q101 qualified when ordered with the HE3 suffix (e.g., SA6.5CAHE3/54). The E3 suffix version is commercial grade but shares identical electrical and thermal specifications. For automotive use, specify the HE3 variant to ensure full stress-test validation including temperature cycling, high-temperature reverse bias, and unbiased high-temperature storage. The SA6.5CA-E3/54 itself meets all functional requirements but lacks formal AEC-Q101 certification in E3 form.
Does the SA6.5CA-E3/54 have polarity markings on the package?
No, the SA6.5CA-E3/54 has no polarity markings because it is a bidirectional TVS diode. Both terminals are functionally identical - the device clamps symmetrically in either direction, so orientation during PCB assembly does not affect performance. This simplifies manufacturing and eliminates risk of incorrect placement. The SA6.5CA-E3/54 is physically and electrically identical in both directions, unlike unidirectional variants such as SA6.5A-E3/54.
What is the standoff voltage (VWM) and why is it critical for SA6.5CA-E3/54 selection?
The SA6.5CA-E3/54 has a standoff voltage (VWM) of 6.5 V, meaning it remains non-conductive up to this DC or RMS voltage level with leakage <1 μA. This parameter is critical because it must exceed the maximum normal operating voltage of the protected line - for example, selecting SA6.5CA-E3/54 for a 5 V rail provides 1.5 V margin against false triggering. Exceeding VWM causes excessive leakage and premature degradation, making precise VWM matching essential in low-voltage systems.
How does the SA6.5CA-E3/54 compare to unidirectional TVS diodes like SA6.5A-E3/54?
The SA6.5CA-E3/54 differs from SA6.5A-E3/54 in polarity behavior: SA6.5CA-E3/54 is bidirectional (no cathode band, symmetrical clamping), while SA6.5A-E3/54 is unidirectional (cathode-banded, conducts only in reverse). SA6.5CA-E3/54 is used where AC signals, differential buses, or unknown polarity transients exist; SA6.5A-E3/54 suits DC rails with defined ground reference. Both share identical VWM, VBR, and PPPM, but SA6.5CA-E3/54's bidirectional nature increases design flexibility at the cost of slightly higher capacitance.
SA6.5CA-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA6.5CA-E3/54 FAQ
1.How can I place an order for SA6.5CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA6.5CA-E3/54 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 SA6.5CA-E3/54 reliable?
The price and inventory of SA6.5CA-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA6.5CA-E3/54 is usually 5 days.
3.What payment methods are accepted for SA6.5CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA6.5CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA6.5CA-E3/54?
SA6.5CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA6.5CA-E3/54 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 SA6.5CA-E3/54?
For technical support, including SA6.5CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA6.5CA-E3/54 requirements.
6.How does Aetrix verify that SA6.5CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All SA6.5CA-E3/54 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 SA6.5CA-E3/54 meets industry standards.
7.What is the process for return or replacement of SA6.5CA-E3/54?
All SA6.5CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA6.5CA-E3/54, 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 SA6.5CA-E3/54 part is unused and in its original packaging.
Return procedure for SA6.5CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA6.5CA-E3/54 Tags
-
ESD9B5.0ST5G
onsemi
-
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
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
