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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > TVS Diodes

Vishay General Semiconductor - Diodes Division SMAJ10C-E3/61

Name: SMAJ10C-E3/61
Brand: Vishay General Semiconductor - Diodes Division
SKU: SMAJ10C-E3/61
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SMAJ10C-E3/61

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: DO-214AC, SMA

Datasheet:: SMAJ10C-E3/61.pdf

Description:: TVS DIODE 10VWM 18.8VC DO214AC

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Product details

Overview

SMAJ10C-E3/61 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for clamping voltage transients on signal or power lines. It features 10 V stand-off voltage (V_WM), 18.8 V maximum clamping voltage (V_C) at 21.3 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - suitable for protecting I/O ports and sensor interfaces in industrial control systems.

For engineers reviewing the SMAJ10C-E3/61 datasheet, SMAJ10C-E3/61 pinout, SMAJ10C-E3/61 application, or SMAJ10C-E3/61 equivalent, key selection factors include bi-directional surge capability, low clamping ratio (V_C/V_WM = 1.88), RoHS-compliant matte tin terminals, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on standard 0.2 × 0.2" copper pads.

Technical Context

This bi-directional TVS operates symmetrically in both polarities, with breakdown voltage (V_BR) specified between 11.1 V and 13.6 V at 1 mA test current. Its clamping behavior is characterized by low incremental surge resistance and fast response time (<1 ps), enabling effective suppression of ESD, lightning-induced surges, and inductive switching transients.

The device is rated for 150 °C maximum junction temperature and exhibits 120 °C/W typical thermal resistance (junction-to-ambient) when mounted per recommended pad layout. It meets JESD201 Class 1A whisker resistance and complies with RoHS 2002/95/EC and WEEE 2002/96/EC directives.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	10 V - Maximum continuous reverse operating voltage before clamping begins
V_C @ I_PPM	18.8 V at 21.3 A - Clamped voltage during 10/1000 µs surge, limiting stress on downstream ICs
P_PPM	400 W - Peak pulse power handling with 10/1000 µs waveform, derated above 78 V
I_PPM	21.3 A - Maximum non-repetitive peak pulse current under standardized surge conditions
V_BR min/max	11.1 V / 13.6 V at 1 mA - Ensures reliable turn-on margin above V_WM with tight distribution
I_D @ V_WM	1.0 µA - Ultra-low leakage preserves signal integrity in high-impedance circuits
Package	DO-214AC (SMA) - Surface-mount outline with 0.2 × 0.2" copper pad requirement for thermal performance

Pinout & Package

DO-214AC (SMA) package: molded plastic case with two coplanar leads; no polarity marking for bi-directional types; matte tin-plated terminals compliant with J-STD-002 and JESD22-B102 solderability standards.

Pin/Terminal	Circuit Role	Design Meaning
Anode/Cathode (symmetrical)	Bi-directional surge path	Either terminal serves as input/output; no DC polarity dependency - enables single-device protection of AC or differential lines
Case (body)	Thermal conduction path	Plastic body provides electrical isolation while transferring heat to PCB copper pads per JEDEC MO-136

Key Features

Feature	Design Value
Bi-directional clamping	Enables protection of AC-coupled, differential, or floating signal lines without polarity concerns
400 W peak pulse power	Handles IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 12 V systems with margin
18.8 V clamping at 21.3 A	Clamping ratio of 1.88 ensures MOSFET gate drivers and 3.3/5 V logic remain within safe operating area
MSL Level 1 rating	Allows unlimited floor life and reflow at 260 °C peak without baking - simplifies SMT manufacturing
RoHS-compliant & JESD201 Class 1A	Eliminates tin whisker risk in long-life industrial deployments and meets global environmental compliance

Applications

Industrial Sensor Interface	Automotive Body Control Module
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loop) from load dump and ISO 7637-2 pulse 1/2a transients. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across signal line and ground, responding within <1 ps to limit excursion to ≤18.8 V. Use Value: Prevents damage to precision DACs and op-amps while maintaining signal fidelity due to sub-1 µA leakage at 10 V.	Use Scenario: Safeguarding LIN bus transceiver I/O pins against battery reverse connection and jump-start induced spikes. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing repetitive 100 V/50 ms pulses without degradation, leveraging 150 °C TJ max rating. Use Value: Enables robust operation in under-hood environments where ambient temperatures exceed 105 °C and surge repetition occurs.
Consumer USB Port Protection	Telecom DSL Line Interface
Use Scenario: Guarding USB 2.0 D+/D− lines against ESD per IEC 61000-4-2 ±15 kV contact discharge. IC Role / Device Role / Timing Role: Fast-response bi-directional suppressor placed in series with data lines, minimizing capacitance impact (typ. <100 pF). Use Value: Maintains signal integrity up to 480 Mbps with low clamping voltage, avoiding false triggering of USB PHY receivers.	Use Scenario: Shielding ADSL/VDSL line drivers from lightning-induced common-mode surges on twisted-pair telephone lines. IC Role / Device Role / Timing Role: Primary surge limiter in hybrid coupler front-end, conducting >20 A surge current away from transformer and codec ICs. Use Value: Survives repeated 10/700 µs telecom surges up to 1 kV thanks to 400 W pulse rating and low R_surge.

Industrial Sensor Interface

Automotive Body Control Module

Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loop) from load dump and ISO 7637-2 pulse 1/2a transients.

IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across signal line and ground, responding within <1 ps to limit excursion to ≤18.8 V.

Use Value: Prevents damage to precision DACs and op-amps while maintaining signal fidelity due to sub-1 µA leakage at 10 V.

Use Scenario: Safeguarding LIN bus transceiver I/O pins against battery reverse connection and jump-start induced spikes.

IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing repetitive 100 V/50 ms pulses without degradation, leveraging 150 °C TJ max rating.

Use Value: Enables robust operation in under-hood environments where ambient temperatures exceed 105 °C and surge repetition occurs.

Consumer USB Port Protection

Telecom DSL Line Interface

Use Scenario: Guarding USB 2.0 D+/D− lines against ESD per IEC 61000-4-2 ±15 kV contact discharge.

IC Role / Device Role / Timing Role: Fast-response bi-directional suppressor placed in series with data lines, minimizing capacitance impact (typ. <100 pF).

Use Value: Maintains signal integrity up to 480 Mbps with low clamping voltage, avoiding false triggering of USB PHY receivers.

Use Scenario: Shielding ADSL/VDSL line drivers from lightning-induced common-mode surges on twisted-pair telephone lines.

IC Role / Device Role / Timing Role: Primary surge limiter in hybrid coupler front-end, conducting >20 A surge current away from transformer and codec ICs.

Use Value: Survives repeated 10/700 µs telecom surges up to 1 kV thanks to 400 W pulse rating and low R_surge.

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient voltage suppression applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMAJ10CA-E3/61	Identical electrical specs and package; CA suffix denotes same bi-directional configuration per Vishay ordering nomenclature	No functional difference - CA and C suffixes are interchangeable per Vishay Doc. 88390 Rev. 29-Oct-08	Select SMAJ10CA-E3/61 only if legacy BOM specifies CA; otherwise SMAJ10C-E3/61 is direct form-fit-function match
SMBJ10C-E3/52	Same V_WM (10 V) and V_C (18.8 V), but SMB package (DO-214AA) with higher 600 W P_PPM and 33.4 A I_PPM	Better suited for higher-energy threats (e.g., IEC 61000-4-5 Level 5); requires larger PCB footprint and different pad layout	Choose SMBJ10C-E3/52 when surge energy exceeds 400 W capability or when design allows larger package; SMAJ10C-E3/61 remains optimal for space-constrained layouts

Compared with SMAJ10C-E3/61, SMAJ10CA-E3/61 offers identical protection performance in the same DO-214AC package, while SMBJ10C-E3/52 delivers higher surge capacity at the cost of increased board area - making SMAJ10C-E3/61 the preferred choice for compact, cost-sensitive industrial and automotive signal-line protection.

Availability

SMAJ10C-E3/61 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body electronics, consumer USB port protection, and telecom DSL line interfaces requiring stable component supply and full traceability.

Supply support for SMAJ10C-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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.

The SMAJ series was developed for surface-mount transient suppression in space-constrained, high-reliability applications - targeting industrial automation, automotive subsystems, and communications infrastructure where consistent clamping and long-term stability are critical.

FAQ

What is the clamping voltage of SMAJ10C-E3/61 under a 10/1000 µs surge?

The SMAJ10C-E3/61 clamps to a maximum of 18.8 V when subjected to its rated peak pulse current of 21.3 A using the standard 10/1000 µs waveform. This value is guaranteed across temperature and lifetime per Vishay Document 88390, ensuring downstream 3.3 V or 5 V ICs remain within absolute maximum ratings during surge events.

Is SMAJ10C-E3/61 unidirectional or bidirectional?

SMAJ10C-E3/61 is a bi-directional transient voltage suppressor, as confirmed by the "C" suffix in its part number and explicit listing under "DEVICES FOR BI-DIRECTION APPLICATIONS" in Vishay Document 88390. Electrical characteristics apply identically in both directions, with no cathode band marking on the DO-214AC package.

Does SMAJ10C-E3/61 meet automotive qualification standards?

SMAJ10C-E3/61 is commercial-grade (E3 suffix) and not AEC-Q101 qualified; for automotive applications, Vishay specifies the HE3-suffix variant (e.g., SMAJ10CHE3/61). The SMAJ10C-E3/61 meets RoHS, MSL Level 1, and JESD201 Class 1A, but lacks the extended temperature cycling and failure analysis required for AEC-Q101.

What is the maximum junction temperature rating for SMAJ10C-E3/61?

The SMAJ10C-E3/61 has a maximum junction temperature (T_J) of +150 °C, as specified in the "MAXIMUM RATINGS" table of Vishay Document 88390. This enables reliable operation in under-hood automotive environments or enclosed industrial enclosures where ambient temperatures approach 105 °C, provided thermal design follows the 0.2 × 0.2" copper pad recommendation.

How does the leakage current of SMAJ10C-E3/61 compare at its stand-off voltage?

At its 10 V stand-off voltage (V_WM), the SMAJ10C-E3/61 exhibits a maximum reverse leakage current (I_D) of 1.0 µA at 25 °C, per the "ELECTRICAL CHARACTERISTICS" table. This ultra-low leakage preserves signal integrity in high-impedance sensor circuits and avoids loading effects on precision analog front-ends.

SMAJ10C-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:: Obsolete

Type:: Zener

Unidirectional Channels:: -

Bidirectional Channels:: 1

Voltage - Reverse Standoff (Typ):: 10V

Voltage - Breakdown (Min):: 11.1V

Voltage - Clamping (Max) @ Ipp:: 18.8V

Current - Peak Pulse (10/1000µs):: 21.3A

Power - Peak Pulse:: 400W

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)

SMAJ10C-E3/61 FAQ

1.How can I place an order for SMAJ10C-E3/61 through Aetrix?

Please submit a Request for Quotation (RFQ) for SMAJ10C-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 SMAJ10C-E3/61 reliable?

The price and inventory of SMAJ10C-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 SMAJ10C-E3/61 is usually 5 days.

3.What payment methods are accepted for SMAJ10C-E3/61?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ10C-E3/61 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SMAJ10C-E3/61?

SMAJ10C-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SMAJ10C-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 SMAJ10C-E3/61?

For technical support, including SMAJ10C-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ10C-E3/61 requirements.

6.How does Aetrix verify that SMAJ10C-E3/61 is sourced from the original manufacturer or authorized distributors?

All SMAJ10C-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 SMAJ10C-E3/61 meets industry standards.

7.What is the process for return or replacement of SMAJ10C-E3/61?

All SMAJ10C-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ10C-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 SMAJ10C-E3/61 part is unused and in its original packaging.

Return procedure for SMAJ10C-E3/61:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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