My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA6J11A-E3/61
- Part No.:
- SMA6J11A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J11A-E3/61.pdf
- Description:
- TVS DIODE 11VWM 21.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,222
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA6J11A-E3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, with 11 V stand-off voltage (VWM), 12.2–13.5 V breakdown voltage (VBR), and 600 W peak pulse power (10/1000 µs). It clamps transients to ≤17.2 V at 34.8 A IPPM and is used for protecting MOSFETs, ICs, and sensor signal lines in industrial and telecom equipment.
For engineers reviewing the SMA6J11A-E3/61 datasheet, SMA6J11A-E3/61 pinout, SMA6J11A-E3/61 application, or SMA6J11A-E3/61 equivalent, key selection criteria include clamping voltage at rated surge current, thermal resistance (RθJA = 120 °C/W), unidirectional polarity, RoHS-compliant matte tin plating, and MSL level 1 moisture sensitivity rating.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device triggered above its reverse standoff voltage (VWM = 11 V), entering avalanche conduction at VBR (min 12.2 V). Its dynamic resistance (RD = 0.107 Ω) directly determines clamping rise under fast transients, and its 150 °C max junction temperature supports operation in thermally constrained PCB layouts.
The SMA (DO-214AC) package enables automated placement and provides 120 °C/W junction-to-ambient thermal resistance when mounted on 5.0 mm × 5.0 mm copper pads. Its unidirectional polarity-marked by cathode band-and 0.2 µA leakage at VWM ensure minimal standby loading on protected signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse operating voltage before significant leakage; defines upper limit of normal signal swing. |
| VBR (min/max) | 12.2 V / 13.5 V - Breakdown onset range at 1 mA test current; ensures predictable turn-on margin above VWM. |
| VC at IPPM | 17.2 V at 34.8 A - Clamping voltage during 10/1000 µs surge; must be below protected device's absolute maximum rating. |
| PPPM (10/1000 µs) | 600 W - Peak transient energy handling capability; determines survivability against common inductive switching events. |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance on standard pad layout; governs power derating above 25 °C ambient. |
| Polarity | Unidirectional - Blocks reverse voltage only; requires correct orientation relative to protected circuit's ground reference. |
| MSL Level | Level 1 per J-STD-020 - No floor life limitation; safe for standard SMT reflow without dry pack or baking. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; cathode denoted by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference node | Connected to lower-potential side (e.g., GND or signal return); defines directionality of clamping action. |
| Cathode | Avalanche conduction output / Clamping node | Connected to line being protected; conducts surge current to anode when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | VC = 17.2 V at 34.8 A IPPM ensures robust protection of 12 V logic and power rails without overvoltage stress. |
| Thermal reliability | RθJA = 120 °C/W and TJ(max) = 150 °C enable stable operation in enclosed industrial enclosures up to 70 °C ambient. |
| Manufacturing compatibility | MSL Level 1 rating and 260 °C lead-free reflow peak tolerance support high-yield automated assembly without preconditioning. |
| Leakage control | ID ≤ 0.2 µA at VWM minimizes DC loading on high-impedance sensor outputs and battery-backed circuits. |
Applications
| Industrial Motor Control | Telecom Power Interface |
|---|---|
Use Scenario: Protecting gate drivers and microcontroller I/O from flyback spikes generated by 24 V solenoid and relay coils. IC Role / Device Role / Timing Role: Unidirectional TVS placed across coil terminals or between driver output and ground. Use Value: Limits transient overshoot to ≤17.2 V, preventing latch-up or oxide breakdown in 3.3 V/5 V logic interfaces. | Use Scenario: Safeguarding 48 V DC input stage of PoE-powered network switches against lightning-induced surges on Ethernet cables. IC Role / Device Role / Timing Role: Primary front-end clamp on DC input rail prior to DC/DC converter input filter. Use Value: Absorbs 600 W (10/1000 µs) surges while maintaining <0.2 µA leakage to avoid standby current drift. |
| Automotive Body Control Module | Consumer Sensor Hub |
Use Scenario: Shielding LIN bus transceivers and window motor H-bridge FETs from load dump and jump-start transients. IC Role / Device Role / Timing Role: Bidirectionally referenced TVS (anode to GND, cathode to line) on 12 V supply rail and signal lines. Use Value: Withstands 50 A IFSM and clamps to 17.2 V, keeping downstream regulators within safe SOA limits. | Use Scenario: Guarding analog outputs of environmental sensors (e.g., humidity, pressure) connected to MCU ADC inputs. IC Role / Device Role / Timing Role: Low-leakage unidirectional clamp between sensor output and MCU ground, oriented to block negative transients. Use Value: 0.2 µA max ID at 11 V VWM preserves signal integrity and avoids ADC offset errors in µA-level sensor circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J11CA-E3/61 | Bidirectional variant; symmetric clamping for AC-coupled or floating lines; VBR ±12.2 V; same VC and PPPM. | Required where line may experience both positive and negative transients (e.g., RS-485, audio lines). | Select SMA6J11CA-E3/61 only if bidirectional protection is needed; SMA6J11A-E3/61 is optimal for DC-rail or unidirectional signal protection. |
| SMCJ11A-E3/57T | Larger SMC (DO-214AB) package; higher RθJA = 30 °C/W; same VWM/VBR/VC but 1500 W PPPM (10/1000 µs). | Suitable for higher-energy transients where board space allows larger footprint and thermal mass. | Choose SMCJ11A-E3/57T when surge energy exceeds 600 W; SMA6J11A-E3/61 remains preferred for space-constrained 12 V rail protection. |
Compared with SMA6J11CA-E3/61 and SMCJ11A-E3/57T, the SMA6J11A-E3/61 offers the smallest footprint for unidirectional 11 V rail clamping, with optimized thermal resistance for dense industrial PCBs and lowest leakage for precision analog interfaces.
Availability
SMA6J11A-E3/61 is available at Aetrix Electronics and suitable for industrial motor control, telecom power interface, and automotive body control module designs requiring stable component supply, consistent RoHS compliance, and verified MSL Level 1 handling.
Supply support for SMA6J11A-E3/61 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, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The SMA6JxxA series is designed for robust, surface-mount transient suppression in space-constrained industrial, telecom, and automotive systems where precise clamping, low leakage, and automated assembly compatibility are critical.
FAQ
What is the maximum clamping voltage of the SMA6J11A-E3/61 at its rated peak pulse current?
The SMA6J11A-E3/61 has a maximum clamping voltage (VC) of 17.2 V at its rated peak pulse current (IPPM) of 34.8 A under a 10/1000 µs waveform. This value is measured per the manufacturer's test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The SMA6J11A-E3/61 achieves this clamping performance with a dynamic resistance of 0.107 Ω, ensuring predictable voltage rise across the device during transient conduction.
Is the SMA6J11A-E3/61 suitable for lead-free reflow soldering processes?
Yes, the SMA6J11A-E3/61 is qualified for lead-free reflow soldering with a maximum peak temperature of 260 °C, compliant with J-STD-020 MSL Level 1 requirements. Its matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability standards, and the E3 suffix confirms RoHS compliance and industrial-grade qualification. The SMA6J11A-E3/61 does not require dry packing or baking prior to assembly, simplifying manufacturing flow.
How does the leakage current of the SMA6J11A-E3/61 compare to other 11 V TVS diodes in the same family?
The SMA6J11A-E3/61 specifies a maximum reverse leakage current (ID) of 0.2 µA at its 11 V stand-off voltage (VWM), matching the leakage performance of all SMA6JxxA variants rated ≥12 V VWM. This low leakage is maintained across temperature and ensures minimal loading on high-impedance nodes such as sensor outputs or microcontroller reset lines. The SMA6J11A-E3/61 achieves this without compromising clamping speed or energy handling.
Can the SMA6J11A-E3/61 be used in bidirectional signal line protection?
No, the SMA6J11A-E3/61 is unidirectional only and must be oriented with cathode toward the protected line and anode toward ground to function correctly. For bidirectional protection-such as on AC-coupled or floating differential lines-use the SMA6J11CA-E3/61, which provides symmetrical clamping for both polarities. The SMA6J11A-E3/61's design intentionally omits reverse conduction capability to optimize forward surge handling and leakage performance in DC applications.
What is the thermal resistance and maximum junction temperature rating of the SMA6J11A-E3/61?
The SMA6J11A-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal, and a maximum operating junction temperature (TJ) of +150 °C. These values define its power derating curve above 25 °C ambient and confirm suitability for enclosed industrial environments. The SMA6J11A-E3/61 maintains full-rated PPPM only up to TA = 25 °C; derating begins linearly beyond that point per Figure 2 in the datasheet.
SMA6J11A-E3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 172A (8/20µs)
- Power - Peak Pulse:
- 4000W (4kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J11A-E3/61 FAQ
1.How can I place an order for SMA6J11A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J11A-E3/61 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 SMA6J11A-E3/61 reliable?
The price and inventory of SMA6J11A-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J11A-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA6J11A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J11A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J11A-E3/61?
SMA6J11A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J11A-E3/61 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 SMA6J11A-E3/61?
For technical support, including SMA6J11A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J11A-E3/61 requirements.
6.How does Aetrix verify that SMA6J11A-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA6J11A-E3/61 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 SMA6J11A-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA6J11A-E3/61?
All SMA6J11A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J11A-E3/61, 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 SMA6J11A-E3/61 part is unused and in its original packaging.
Return procedure for SMA6J11A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J11A-E3/61 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 …
