My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMAJ6.0CAHE3/5A
- Part No.:
- SMAJ6.0CAHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ6.0CAHE3/5A.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,169
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMAJ6.0CAHE3/5A from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for robust ESD and surge protection on signal and power lines. It features a 6.0 V standoff voltage (VWM), 6.67–7.37 V breakdown voltage (VBR) at 10 mA, 400 W peak pulse power (10/1000 μs), and clamps transients to ≤10.3 V at 38.8 A peak current - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the SMAJ6.0CAHE3/5A datasheet, SMAJ6.0CAHE3/5A pinout, SMAJ6.0CAHE3/5A application, or SMAJ6.0CAHE3/5A equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, SMA (DO-214AC) package compatibility, and compliance with IEC 61000-4-2/4-5 surge immunity requirements.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (<1 μA leakage at 6.0 V), then rapidly switches to low-impedance conduction when transient voltage exceeds VBR. Its bidirectional structure enables symmetric clamping in both polarities without external polarity management.
Engineered for automotive-grade reliability, SMAJ6.0CAHE3/5A meets AEC-Q101 stress testing (including temperature cycling, HTRB, and ESD), supports 150 °C maximum junction temperature, and delivers stable clamping performance across -55 °C to +150 °C operating range with ±0.059 %/°C VBR temperature coefficient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 6.0 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 6.67–7.37 V at 10 mA - Verified avalanche onset range ensuring consistent turn-on across production lots |
| VC (Clamping Voltage) | ≤10.3 V at 38.8 A (10/1000 μs) - Limits downstream IC stress during 400 W surge events |
| PPPM (Peak Pulse Power) | 400 W - Sustains single 10/1000 μs transients per JEDEC standards; derates to 300 W above 78 V |
| IPPM (Peak Pulse Current) | 38.8 A - Peak surge current handled without degradation; validated with 0.2" × 0.2" copper pad layout |
| TJmax | +150 °C - Enables operation in under-hood automotive environments and high-power industrial enclosures |
| AEC-Q101 Qualified | Yes - Certified for automotive electronics per stress test requirements including HTGB, AC/DC life test, and ESD HBM ≥8 kV |
Pinout & Package
Package: SMA (DO-214AC) - surface-mount, low-profile case with matte tin-plated leads, UL 94 V-0 molding compound, MSL Level 1 (260 °C reflow peak), and 0.064 g unit weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Terminal 1 | One side of bidirectional junction; no polarity marking required for CA variants |
| Cathode | Terminal 2 | Opposite terminal of bidirectional junction; symmetrical conduction in both directions |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both polarities - eliminates need for polarity-aware board layout |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, high-temp reverse bias, and ESD robustness - supports ASIL-B system designs |
| 400 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth, 2 kV line-line) on properly routed PCB traces |
| Low clamping ratio (VC/VWM ≈ 1.72) | Minimizes overvoltage exposure to protected ICs - critical for 3.3 V and 5 V logic interfaces |
| MSL Level 1 rating | Enables standard SMT reflow without moisture sensitivity concerns - reduces manufacturing risk and cost |
Applications
| Automotive Sensor Protection | Industrial Digital I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive switching transients in engine control units. IC Role / Device Role / Timing Role: Shunt TVS diode placed directly at connector entry point to clamp fast-rising transients before reaching interface ICs. Use Value: Prevents latch-up or gate oxide damage in 5 V tolerant transceivers by limiting voltage to ≤10.3 V during 38.8 A surges. |
Use Scenario: Safeguarding PLC digital input modules against field-wiring induced surges from relay coils, solenoids, and motor drives. IC Role / Device Role / Timing Role: Primary front-end surge limiter on 24 V DC input channels, coordinated with series impedance and filtering. Use Value: Maintains functional safety integrity by absorbing 400 W transients without failure, enabling SIL 2-compliant designs. |
| Telecom Line Interface | Consumer USB/Display Port ESD Guard |
|
Use Scenario: Shielding RS-485/RS-232 transceivers in base station backhaul equipment from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Bidirectional clamping element across differential pairs and shield-ground paths. Use Value: Provides symmetrical protection without polarity constraints - essential for full-duplex communication links. |
Use Scenario: ESD suppression on USB 2.0 data lines and DisplayPort AUX channels in laptops and docking stations. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF typical) shunt device placed adjacent to connector to divert IEC 61000-4-2 ±8 kV contact discharges. Use Value: Clamps sub-100 ns ESD events to <10.3 V while adding negligible signal distortion to high-speed data lanes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0CA-E3/5A | No AEC-Q101 qualification; commercial-grade only; identical electrical specs and package | Not approved for automotive ECUs or chassis modules requiring automotive qualification | Select when cost-sensitive industrial or consumer applications do not require automotive reliability validation |
| SMBJ6.0CAHE3/5A | Higher 600 W PPPM; larger SMB (DO-214AA) package; same VWM/VBR/VC ratings | Requires larger PCB footprint and different thermal pad layout; suited for higher-energy surge zones | Choose when system-level surge testing exceeds 400 W or when legacy SMB layout is fixed |
Compared with SMAJ6.0CAHE3/5A, the E3/5A variant lacks automotive qualification but offers identical clamping performance at lower cost, while SMBJ6.0CAHE3/5A trades compactness for higher energy handling - making SMAJ6.0CAHE3/5A optimal for space-constrained AEC-Q101 designs needing precise 400 W protection.
Availability
SMAJ6.0CAHE3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, long-term lifecycle support, and traceable AEC-Q101 qualified parts.
Supply support for SMAJ6.0CAHE3/5A 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The SMAJ series is engineered for high-reliability transient suppression in harsh environments - targeting automotive, industrial automation, and infrastructure equipment where surge immunity and qualification compliance are mandatory.
FAQ
What does the "CA" suffix indicate in SMAJ6.0CAHE3/5A?
The "CA" suffix denotes a bidirectional configuration: SMAJ6.0CAHE3/5A provides symmetrical clamping in both voltage polarities, with identical breakdown (6.67–7.37 V), clamping (≤10.3 V), and surge current (38.8 A) characteristics regardless of applied polarity. This eliminates polarity marking on PCBs and simplifies layout for AC-coupled or floating signal lines.
Is SMAJ6.0CAHE3/5A suitable for protecting 3.3 V logic circuits?
Yes - SMAJ6.0CAHE3/5A is commonly used to protect 3.3 V interfaces when combined with appropriate series impedance (e.g., 10–100 Ω current-limiting resistor). Its 6.0 V stand-off voltage ensures no conduction during normal operation, while its 10.3 V clamping voltage limits transient overshoot to a safe margin above the 3.3 V rail, preventing damage to downstream buffers or microcontrollers.
How does the HE3 suffix affect the specifications of SMAJ6.0CAHE3/5A?
The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification - confirming that SMAJ6.0CAHE3/5A has passed automotive-grade stress tests including high-temperature reverse bias, temperature cycling, and ESD. Electrically and thermally, SMAJ6.0CAHE3/5A matches the base SMAJ6.0CA specification but adds documented automotive reliability assurance.
What is the maximum recommended PCB pad size for SMAJ6.0CAHE3/5A to achieve rated 400 W pulse power?
To achieve the full 400 W peak pulse power rating, SMAJ6.0CAHE3/5A must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in Vishay's datasheet Figure 1. Smaller pads reduce thermal dissipation and cause premature failure under repeated surges; this layout is validated for 10/1000 μs waveform testing.
Does SMAJ6.0CAHE3/5A have polarity markings on the package?
No - SMAJ6.0CAHE3/5A is a bidirectional device and carries no cathode band or polarity marking. The SMA (DO-214AC) case is symmetric, and both terminals function identically. This distinguishes it from unidirectional variants (e.g., SMAJ6.0AHE3/5A), which feature a visible cathode band for orientation-dependent placement.
SMAJ6.0CAHE3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 10.3V
- Current - Peak Pulse (10/1000µs):
- 38.8A
- 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)
SMAJ6.0CAHE3/5A FAQ
1.How can I place an order for SMAJ6.0CAHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ6.0CAHE3/5A 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 SMAJ6.0CAHE3/5A reliable?
The price and inventory of SMAJ6.0CAHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ6.0CAHE3/5A is usually 5 days.
3.What payment methods are accepted for SMAJ6.0CAHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ6.0CAHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ6.0CAHE3/5A?
SMAJ6.0CAHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ6.0CAHE3/5A 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 SMAJ6.0CAHE3/5A?
For technical support, including SMAJ6.0CAHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ6.0CAHE3/5A requirements.
6.How does Aetrix verify that SMAJ6.0CAHE3/5A is sourced from the original manufacturer or authorized distributors?
All SMAJ6.0CAHE3/5A 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 SMAJ6.0CAHE3/5A meets industry standards.
7.What is the process for return or replacement of SMAJ6.0CAHE3/5A?
All SMAJ6.0CAHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ6.0CAHE3/5A, 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 SMAJ6.0CAHE3/5A part is unused and in its original packaging.
Return procedure for SMAJ6.0CAHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ6.0CAHE3/5A 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 …
