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Vishay General Semiconductor - Diodes Division SMAJ60CAHE3/5A
- Part No.:
- SMAJ60CAHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ60CAHE3/5A.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,967
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Product details
Overview
SMAJ60CAHE3/5A from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for robust overvoltage protection of sensitive electronics. It features a 60 V standoff voltage (VWM), 66.7–73.7 V breakdown voltage (VBR) at 1 mA, 96.8 V maximum clamping voltage (VC) at 4.1 A peak pulse current, and 400 W peak pulse power (10/1000 μs waveform). It is AEC-Q101 qualified and used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power rails.
For engineers reviewing the SMAJ60CAHE3/5A datasheet, SMAJ60CAHE3/5A pinout, SMAJ60CAHE3/5A application, or SMAJ60CAHE3/5A equivalent, key selection criteria include bidirectional clamping behavior, 96.8 V clamping under 4.1 A surge, AEC-Q101 qualification status, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional CA construction, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at 60 V), while the low incremental surge resistance supports rapid energy dissipation during ESD or lightning-induced surges.
The device is rated for 400 W peak pulse power (10/1000 μs) up to 78 V and derates to 300 W above that threshold. With a thermal resistance of 120 °C/W (junction-to-ambient) and 30 °C/W (junction-to-lead), it maintains reliable operation within -55 °C to +150 °C junction temperature range under repetitive surge conditions at ≤0.01% duty cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 60 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 66.7–73.7 V at 1 mA - Confirmed minimum/maximum voltage at which device enters avalanche breakdown; ensures predictable turn-on. |
| VC (Clamping Voltage) | 96.8 V at IPPM = 4.1 A - Peak voltage seen by protected circuit during 10/1000 μs surge; critical for downstream component survivability. |
| PPPM (Peak Pulse Power) | 400 W (≤78 V), 300 W (>78 V) - Energy-handling capacity under standardized surge waveform; determines protection level against common transients. |
| IFSM (Surge Current) | 40 A (8.3 ms half-sine) - Unidirectional surge rating; confirms robustness against inductive switching events in power circuits. |
| TJmax | +150 °C - Maximum allowable junction temperature; enables use in under-hood automotive environments and high-ambient industrial settings. |
| Package | SMA (DO-214AC) - Surface-mount package with 5.28 mm × 4.50 mm footprint, compatible with standard reflow profiles and J-STD-020 MSL Level 1. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, polarity-unmarked for bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No polarity marking; terminals function identically in either direction-enables flexible PCB layout without orientation constraints. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per stress test requirements. |
| 400 W peak pulse power (10/1000 μs) | Supports suppression of high-energy transients from load dump or inductive kick in 12 V/24 V vehicle systems. |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes voltage overshoot during clamping-critical for protecting 65 V-rated MOSFETs and 75 V-rated interface ICs. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 μA) across temperature and lifetime-reduces false triggering risk. |
| MSL Level 1 (260 °C peak) | Enables single-pass lead-free reflow without moisture-related popcorning; eliminates pre-bake requirement in SMT line. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional shunt clamp placed across power input prior to DC-DC converter or LDO regulator. Use Value: Limits transient voltage to ≤96.8 V, preventing damage to downstream 65 V-rated power management ICs and microcontrollers. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) of pressure/temperature sensors in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS placed differential across signal pair near connector entry point. Use Value: Clamps ESD (IEC 61000-4-2 ±8 kV contact) and cable discharge events without distorting low-bandwidth analog signals. |
| Consumer Device USB Port Protection | Telecom Equipment DC Power Input |
|
Use Scenario: Adding secondary surge immunity to USB VBUS line in portable docking stations exposed to hot-plug and cable coupling. IC Role / Device Role / Timing Role: Standoff-rated TVS between VBUS and GND, sized to avoid interference with 5 V regulation and USB 2.0 signaling. Use Value: Maintains 60 V VWM margin above nominal 5 V, ensuring no leakage or conduction during normal operation while clamping >100 V surges. |
Use Scenario: Front-end protection of -48 V telecom rectifier outputs against lightning-induced surges (IEC 61000-4-5 2 Ω/12 Ω coupling). IC Role / Device Role / Timing Role: Bidirectional TVS installed across input terminals of DC-DC modules powering base station control logic. Use Value: Handles 400 W pulses without degradation, preserving system uptime in outdoor cabinet installations with minimal maintenance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ60CA-E3/5A | Commercial-grade version; lacks AEC-Q101 qualification and halogen-free certification. | Acceptable for non-automotive industrial or consumer applications where automotive reliability testing is not required. | Select when cost sensitivity outweighs qualification needs and environmental compliance (halogen-free) is not mandated. |
| SMBJ60CAHE3/5A | Same electrical specs but in larger SMB (DO-214AA) package; 600 W peak pulse power rating. | Better thermal performance (RθJA ≈ 85 °C/W) and higher surge handling-suited for higher-reliability or higher-power board areas. | Choose when board space allows larger footprint and enhanced surge margin (600 W vs. 400 W) is prioritized over miniaturization. |
Compared with SMAJ60CAHE3/5A, the SMAJ60CA-E3/5A offers identical clamping and standoff but omits automotive qualification, while the SMBJ60CAHE3/5A trades compactness for higher power handling and improved thermal dissipation-making each suitable for distinct reliability, space, and surge profile requirements.
Availability
SMAJ60CAHE3/5A is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom power supplies, and consumer USB power delivery systems requiring stable component supply and AEC-Q101 assurance.
Supply support for SMAJ60CAHE3/5A 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 and application-specific performance.
The SMAJ series is engineered for high-reliability transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where consistent clamping, low leakage, and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of SMAJ60CAHE3/5A at its rated peak pulse current?
The SMAJ60CAHE3/5A has a maximum clamping voltage (VC) of 96.8 V at a peak pulse current (IPPM) of 4.1 A under the 10/1000 μs waveform. This value is measured per JEDEC standards and guarantees the protected circuit will not experience voltages exceeding 96.8 V during specified surge events. The SMAJ60CAHE3/5A's low clamping ratio supports robust protection of 65–75 V-rated downstream components.
Is SMAJ60CAHE3/5A suitable for automotive applications?
Yes, SMAJ60CAHE3/5A is AEC-Q101 qualified and explicitly designated for automotive use via its "HE3" suffix. It meets stress test requirements for temperature cycling, high-temperature reverse bias, and mechanical shock. The SMAJ60CAHE3/5A is commonly deployed in engine control modules, body electronics, and ADAS power domains where ISO 7637-2 compliance and long-term reliability are essential.
How does the bidirectional design of SMAJ60CAHE3/5A affect its PCB layout?
The SMAJ60CAHE3/5A has no polarity marking and functions identically in both directions, eliminating orientation constraints during placement. This simplifies PCB routing and reduces assembly errors-especially beneficial in dense layouts where space is limited and signal/power line symmetry exists. Unlike unidirectional variants, the SMAJ60CAHE3/5A requires no cathode band alignment, supporting automated optical inspection and faster SMT throughput.
What is the thermal resistance of SMAJ60CAHE3/5A, and how does it impact power dissipation?
The SMAJ60CAHE3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead (RθJL) of 30 °C/W. When mounted on 5.0 mm × 5.0 mm copper pads, it sustains 3.3 W continuous power dissipation at 50 °C ambient. These values define safe operating limits under sustained leakage or repetitive surge conditions-ensuring the SMAJ60CAHE3/5A remains within its 150 °C max junction temperature even in thermally constrained enclosures.
Does SMAJ60CAHE3/5A meet RoHS and halogen-free requirements?
Yes, SMAJ60CAHE3/5A is RoHS-compliant and halogen-free, as confirmed by its "HE3" suffix and Vishay's material categorization documentation (www.vishay.com/doc?99912). The device uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and its molding compound meets UL 94 V-0 flammability rating-fulfilling environmental compliance mandates for automotive, industrial, and export-oriented electronics programs.
SMAJ60CAHE3/5A 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):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 4.1A
- 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)
SMAJ60CAHE3/5A FAQ
1.How can I place an order for SMAJ60CAHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ60CAHE3/5A 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 SMAJ60CAHE3/5A reliable?
The price and inventory of SMAJ60CAHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ60CAHE3/5A is usually 5 days.
3.What payment methods are accepted for SMAJ60CAHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ60CAHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ60CAHE3/5A?
SMAJ60CAHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ60CAHE3/5A 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 SMAJ60CAHE3/5A?
For technical support, including SMAJ60CAHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ60CAHE3/5A requirements.
6.How does Aetrix verify that SMAJ60CAHE3/5A is sourced from the original manufacturer or authorized distributors?
All SMAJ60CAHE3/5A 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 SMAJ60CAHE3/5A meets industry standards.
7.What is the process for return or replacement of SMAJ60CAHE3/5A?
All SMAJ60CAHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ60CAHE3/5A, 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 SMAJ60CAHE3/5A part is unused and in its original packaging.
Return procedure for SMAJ60CAHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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