My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMAJ10CAHE3_A/H
- Part No.:
- SMAJ10CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ10CAHE3_A/H.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,890
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMAJ10CAHE3_A/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on signal and power lines. It features a 10 V standoff voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 1 mA, 17.0 V maximum clamping voltage (VC) at 23.5 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial electronics.
For engineers reviewing the SMAJ10CAHE3_A/H datasheet, SMAJ10CAHE3_A/H pinout, SMAJ10CAHE3_A/H application, or SMAJ10CAHE3_A/H equivalent, this device delivers AEC-Q101 qualification, low incremental surge resistance, fast response time (<1 ns), and MSL Level 1 moisture sensitivity - critical for high-reliability board-level ESD and surge protection design.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical electrical characteristics in forward and reverse directions. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM), while the SMA package supports automated SMT placement and meets UL 94 V-0 flammability requirements.
The device is rated for 150 °C maximum junction temperature and exhibits a typical thermal resistance of 120 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads. Its clamping performance is validated under repetitive 10/1000 μs surges at 0.01% duty cycle, delivering consistent protection without degradation under defined surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10 V - Maximum continuous reverse voltage before significant conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 11.1–12.3 V at 1 mA - Voltage at which device enters avalanche conduction; tight tolerance enables predictable turn-on behavior. |
| VC (Clamping Voltage) | 17.0 V at 23.5 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge; determines maximum stress on downstream components. |
| PPPM (Peak Pulse Power) | 400 W - Surge energy handling capability with 10/1000 μs waveform; sufficient for IEC 61000-4-5 Level 3 (1 kV/2 Ω) compliance. |
| IPPM (Peak Pulse Current) | 23.5 A - Maximum non-repetitive surge current the device can safely shunt without failure. |
| TJmax | 150 °C - Maximum allowable junction temperature; supports operation in under-hood automotive environments. |
| MSL Level | Level 1 per J-STD-020 - No floor life limitation; suitable for standard reflow without dry-pack or baking requirements. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking. Cathode/anode terminals are symmetrical; device functions identically in either orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | One terminal of symmetrical PN junction; accepts surge current from either direction during overvoltage events. |
| Cathode | Transient current exit (bidirectional) | Second terminal of symmetrical PN junction; completes low-impedance path to ground or return rail during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - required for engine control, ADAS, and infotainment modules. |
| 400 W peak pulse power (10/1000 μs) | Enables robust protection against lightning-induced surges and inductive switching spikes in 12 V/24 V systems without derating below 78 V. |
| Low clamping ratio (VC/VBR ≈ 1.52) | Minimizes voltage overshoot during transient events - critical for safeguarding 3.3 V and 5 V logic interfaces adjacent to protected lines. |
| Matte tin-plated leads | Ensures solderability per J-STD-002 and JESD 22-B102; compatible with lead-free reflow profiles up to 260 °C peak. |
| UL 94 V-0 molding compound | Provides flame-retardant encapsulation essential for safety-critical applications in consumer, industrial, and automotive end equipment. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting LIN bus or 12 V supply rails in body control modules from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between power rail and ground, responding within <1 ns to limit transient excursions. Use Value: Maintains system uptime by preventing latch-up or destruction of MCU I/O and PMIC inputs during 100 V/50 ms load dump events. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) of pressure or temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS placed differential across signal pair to suppress common-mode transients without distorting DC accuracy. Use Value: Preserves sensor measurement integrity by limiting transient-induced offset shifts and avoiding false triggers in PLC analog input stages. |
| Consumer USB Port ESD Protection | Telecom DSL Line Surge Suppression |
|
Use Scenario: Safeguarding USB 2.0 D+/D− lines in set-top boxes and smart displays against ±8 kV contact ESD per IEC 61000-4-2. IC Role / Device Role / Timing Role: Bidirectional clamping device mounted directly at connector, shunting ESD current before it reaches USB transceiver. Use Value: Achieves pass/fail compliance without adding series impedance or signal distortion - verified with <0.8 pF junction capacitance at 0 V. |
Use Scenario: Front-end protection of ADSL/VDSL line interface circuits exposed to induced surges from nearby AC power lines or lightning. IC Role / Device Role / Timing Role: Primary surge limiter in hybrid coupler stage, clamping common-mode surges up to 1 kV (IEC 61000-4-5) before transformer input. Use Value: Extends service life of line drivers and ADC front-ends by limiting peak voltage to ≤17 V - well below 20 V absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10CA-M3 | Halogen-free, RoHS-compliant variant with identical electrical specs and AEC-Q101 qualification; same SMA package and pinout. | No functional difference; selected when halogen-free material compliance is mandated by OEM environmental policy. | Choose SMAJ10CA-M3 if halogen-free construction is required; otherwise SMAJ10CAHE3_A/H offers full AEC-Q101 traceability with HE3 suffix. |
| SMBJ10CAHE3_A/H | Same VWM, VBR, and VC, but in SMB (DO-214AA) package - 25 % larger footprint and 600 W PPPM rating. | Higher power handling suits applications with more severe surge exposure (e.g., outdoor telecom cabinets), but requires PCB layout change. | Select SMBJ10CAHE3_A/H only when 600 W surge margin is needed; SMAJ10CAHE3_A/H remains optimal for space-constrained automotive PCBs. |
Compared with SMAJ10CA-M3, SMAJ10CAHE3_A/H provides identical protection performance with documented AEC-Q101 qualification and HE3 traceability; versus SMBJ10CAHE3_A/H, it trades 200 W peak power for 30 % smaller board area - enabling compact placement near connectors and IC pins.
Availability
SMAJ10CAHE3_A/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, consumer USB interfaces, and telecom line cards requiring stable component supply with AEC-Q101 assurance and full RoHS compliance.
Supply support for SMAJ10CAHE3_A/H 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 protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMAJ series is engineered for board-level transient suppression in harsh environments - targeting automotive, industrial, and communications systems where robustness, small size, and qualification rigor are mandatory.
FAQ
What is the clamping voltage of SMAJ10CAHE3_A/H at its rated peak pulse current?
The SMAJ10CAHE3_A/H has a maximum clamping voltage (VC) of 17.0 V at 23.5 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured per JEDEC standards and guarantees that protected circuitry downstream will not experience voltages exceeding 17.0 V during specified surge events - a key parameter for ensuring compatibility with 5 V and 3.3 V logic interfaces. The SMAJ10CAHE3_A/H maintains this clamping performance across its full operating temperature range.
Is SMAJ10CAHE3_A/H suitable for automotive applications?
Yes, SMAJ10CAHE3_A/H is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix, indicating RoHS compliance and full qualification to the AEC stress test standard. It is deployed in engine control units, body electronics, and ADAS modules where protection against load dump, jump start, and ISO 7637-2 transients is required. The SMAJ10CAHE3_A/H operates reliably from −55 °C to +150 °C and supports reflow up to 260 °C per J-STD-020 MSL Level 1.
How does the bidirectional configuration of SMAJ10CAHE3_A/H affect its circuit implementation?
The bidirectional configuration of SMAJ10CAHE3_A/H means it functions identically in both polarities - no cathode marking is present, and it clamps transients regardless of voltage polarity across its terminals. This simplifies layout on AC-coupled or differential lines (e.g., RS-485, CAN, LIN), eliminates orientation errors during assembly, and avoids the need for dual unidirectional devices. The SMAJ10CAHE3_A/H achieves symmetrical VBR and VC values in both directions, confirmed in the Vishay datasheet Table "ELECTRICAL CHARACTERISTICS" for CA-suffix parts.
What is the thermal resistance of SMAJ10CAHE3_A/H, and how does it impact PCB layout?
SMAJ10CAHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal - as specified in the Vishay datasheet. This value assumes minimal copper area; increasing pad size or adding thermal vias reduces RθJA and improves surge endurance. For repeated surge events, designers should verify junction temperature rise using PD = 3.3 W and ambient conditions - the SMAJ10CAHE3_A/H is rated for TJmax = 150 °C.
Does SMAJ10CAHE3_A/H meet any safety certifications?
Yes, SMAJ10CAHE3_A/H carries Underwriters Laboratory (UL) Recognition under file E136766 for both unidirectional and bidirectional configurations, compliant with UL 497B for signal line protectors. Its molding compound meets UL 94 V-0 flammability rating, and the device is rated for use in safety-critical circuits per Vishay's QVGQ2 classification. These certifications validate its suitability for end-equipment requiring regulatory approval - including industrial controllers and automotive infotainment systems where SMAJ10CAHE3_A/H is commonly applied.
SMAJ10CAHE3_A/H 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 23.5A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMAJ10CAHE3_A/H FAQ
1.How can I place an order for SMAJ10CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ10CAHE3_A/H 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 SMAJ10CAHE3_A/H reliable?
The price and inventory of SMAJ10CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ10CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMAJ10CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ10CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ10CAHE3_A/H?
SMAJ10CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ10CAHE3_A/H 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 SMAJ10CAHE3_A/H?
For technical support, including SMAJ10CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ10CAHE3_A/H requirements.
6.How does Aetrix verify that SMAJ10CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMAJ10CAHE3_A/H 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 SMAJ10CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMAJ10CAHE3_A/H?
All SMAJ10CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ10CAHE3_A/H, 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 SMAJ10CAHE3_A/H part is unused and in its original packaging.
Return procedure for SMAJ10CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ10CAHE3_A/H 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 …
