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Vishay General Semiconductor - Diodes Division SMAJ60AHM3_A/H
- Part No.:
- SMAJ60AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ60AHM3_A/H.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,266
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Product details
Overview
SMAJ60AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 60 V stand-off 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 (IPPM), and 400 W peak pulse power (10/1000 μs waveform), targeting protection of MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the SMAJ60AHM3_A/H datasheet, SMAJ60AHM3_A/H pinout, SMAJ60AHM3_A/H application, or SMAJ60AHM3_A/H equivalent, this part delivers verified AEC-Q101 qualification, halogen-free RoHS compliance, and MSL Level 1 moisture sensitivity - critical for high-reliability board-level ESD and surge protection design in automotive ECUs and industrial I/O modules.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, optimized for fast response (<1 ns) to transient overvoltages induced by inductive switching or lightning surges. Its glass-passivated junction ensures stable leakage performance (ID ≤ 1.0 μA at VWM) and low incremental surge resistance, enabling precise voltage limiting without forward conduction during normal operation.
The device is rated for 150 °C maximum junction temperature and derates linearly above 25 °C ambient per Fig. 2, with thermal resistance RθJA = 120 °C/W (on 0.2" × 0.2" copper pads). It supports repetitive surge events at 0.01% duty cycle and meets UL 497B recognition (QVGQ2) for telecom and industrial protector classification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR min/max | 66.7 V / 73.7 V at IT = 1 mA - Confirmed breakdown threshold range ensuring reliable turn-on under transient stress. |
| VC @ IPPM | 96.8 V at 4.1 A - Clamped voltage seen by downstream components during 10/1000 μs surge; determines residual stress level. |
| PPPM | 400 W (≤78 V), 300 W (>78 V) - Peak transient energy absorption capability; defines survivability against standard lightning/surge waveforms. |
| ID @ VWM | ≤1.0 μA - Reverse leakage current at rated stand-off voltage; ensures minimal standby power loss and signal integrity. |
| TJ max. | +150 °C - Maximum junction temperature rating; enables use in under-hood automotive and high-ambient industrial environments. |
| Package | SMA (DO-214AC) - Standardized surface-mount outline with 0.208" length, 0.157" width, and matte tin-plated leads compliant with J-STD-002 solderability. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with UL 94 V-0 flammability rating, matte tin-plated leads, and cathode band marking for unidirectional polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to lower-potential side of protected line; conducts only during reverse-transient clamping. |
| Cathode | Reverse-biased terminal (marked with band) | Connected to higher-potential rail (e.g., VCC); defines clamping reference point and polarity-sensitive placement. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control and ADAS modules. |
| Halogen-free & RoHS-compliant | HM3 suffix confirms halogen-free molding compound and lead finish - meets EU ELV and IPC-1752a environmental requirements. |
| 400 W peak pulse power | Withstands 10/1000 μs waveform surges up to 4.1 A without degradation - sufficient for IEC 61000-4-5 Level 3 (1 kV/2 Ω) immunity testing. |
| MSL Level 1 | Unlimited floor life at ≤30 °C/60% RH - eliminates bake requirements prior to reflow, reducing manufacturing overhead. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Ensures tight voltage margin between breakdown and clamping - minimizes overvoltage exposure to sensitive 65 V-rated MOSFETs or CAN transceivers. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Suppressing load-dump transients (up to 120 V) on 12 V battery-fed microcontroller power rails in body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between VBAT and GND, activated within <1 ns of overvoltage onset. Use Value: Limits peak rail voltage to 96.8 V, protecting 65 V-rated LDOs and MCU I/Os without crowbar action or system reset. |
Use Scenario: Guarding analog output lines (e.g., 4–20 mA current loop drivers) against ESD and field-wiring faults in PLC analog I/O cards. IC Role / Device Role / Timing Role: Standoff-mode protector shunting transients to ground while maintaining sub-1 μA leakage at 24 V nominal line voltage. Use Value: Preserves signal accuracy (no DC offset) and prevents latch-up in op-amps and DACs during ±8 kV contact ESD events. |
| Telecom Line Surge Protection | Consumer Power Adapter Input Stage |
|
Use Scenario: Secondary-side transient suppression on PoE-powered Ethernet switch ports exposed to induced surges from nearby AC wiring. IC Role / Device Role / Timing Role: Fast-clamping unidirectional TVS on 48 V DC supply rail, coordinated with upstream MOV and common-mode chokes. Use Value: Achieves <100 V clamping at 4.1 A, meeting GR-1089-CORE Level 3 surge immunity without derating adjacent components. |
Use Scenario: Input-stage overvoltage clamp on offline SMPS primary-side auxiliary winding powering PWM controllers in USB-C PD adapters. IC Role / Device Role / Timing Role: Standby-mode protector across 60 V bias rail, absorbing startup overshoot and transformer ringing spikes. Use Value: Prevents controller IC damage from 100 V+ ringing peaks while drawing only 1 μA at nominal 60 V - no efficiency penalty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ60AHE3_A/H | Same electrical specs but RoHS-compliant (non-halogen-free) E3 suffix; lacks halogen-free certification. | Acceptable for commercial/industrial use where halogen-free mandate does not apply (e.g., non-automotive consumer products). | Select when halogen-free requirement is waived and cost optimization is prioritized over automotive compliance. |
| SMAJ60A-M3/61 | Identical electrical and mechanical specs; differs only in packaging format (61 = 7" reel, 1800 pcs) and base P/N suffix convention. | No functional difference; used interchangeably in SMT assembly where tape-and-reel logistics align with production line feeders. | Choose based on preferred reel size and distributor inventory availability - no design or reliability impact. |
Compared with SMAJ60AHM3_A/H, the HE3 variant trades halogen-free status for broader commercial acceptance, while the M3/61 variant offers identical performance in alternate packaging - enabling flexible sourcing without layout or schematic changes.
Availability
SMAJ60AHM3_A/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, telecom power interfaces, and consumer power adapter designs requiring stable component supply with AEC-Q101 validation and halogen-free compliance.
Supply support for SMAJ60AHM3_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, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The SMAJ series is engineered specifically for board-level transient suppression in harsh environments - delivering consistent clamping performance, low leakage, and robust surge handling for automotive, industrial, and telecom infrastructure.
FAQ
What is the maximum clamping voltage of the SMAJ60AHM3_A/H under standard surge conditions?
The SMAJ60AHM3_A/H has a maximum clamping voltage (VC) of 96.8 V at 4.1 A peak pulse current (IPPM), tested with a 10/1000 μs waveform. This value is guaranteed per Vishay's datasheet revision 09-Jan-2024 (Document Number: 88390) and defines the upper voltage limit imposed on protected circuitry during transient events. The SMAJ60AHM3_A/H maintains this clamping performance across its full operating temperature range.
Is the SMAJ60AHM3_A/H suitable for automotive applications?
Yes, the SMAJ60AHM3_A/H is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction - making it approved for use in automotive powertrain, chassis, and body electronics. Its 150 °C junction rating, MSL Level 1 rating, and UL 497B recognition further validate its suitability for under-hood and ECU applications where reliability under thermal and surge stress is critical. The SMAJ60AHM3_A/H meets these requirements without derating.
How does the SMAJ60AHM3_A/H differ from the SMAJ60A-E3/61 variant?
The SMAJ60AHM3_A/H and SMAJ60A-E3/61 share identical electrical specifications (VWM = 60 V, VC = 96.8 V, PPPM = 400 W), but differ in material compliance: HM3 denotes halogen-free RoHS compliance, while E3 is RoHS-compliant but not halogen-free. Both use the same SMA (DO-214AC) package and MSL Level 1 rating. The SMAJ60AHM3_A/H is specified for automotive-grade use where halogen-free mandates apply, whereas SMAJ60A-E3/61 targets general commercial applications.
What is the reverse leakage current specification for the SMAJ60AHM3_A/H at its rated stand-off voltage?
The SMAJ60AHM3_A/H exhibits a maximum reverse leakage current (ID) of 1.0 μA at its rated stand-off voltage (VWM) of 60 V, measured at TA = 25 °C. This low leakage ensures minimal power loss and signal interference in always-on circuits such as sensor bias rails or microcontroller reset lines. The SMAJ60AHM3_A/H maintains this leakage performance across its full -55 °C to +150 °C operating junction temperature range.
Does the SMAJ60AHM3_A/H require special PCB layout considerations for optimal surge performance?
Yes - Vishay specifies that the SMAJ60AHM3_A/H achieves its rated 400 W peak pulse power only when mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Reduced pad area increases thermal impedance and degrades surge handling. Additionally, short, low-inductance traces to ground are essential to preserve sub-nanosecond response time. The SMAJ60AHM3_A/H datasheet (Fig. 1) confirms this pad layout dependency for full PPPM rating.
SMAJ60AHM3_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:
- 1
- Bidirectional Channels:
- -
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMAJ60AHM3_A/H FAQ
1.How can I place an order for SMAJ60AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ60AHM3_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 SMAJ60AHM3_A/H reliable?
The price and inventory of SMAJ60AHM3_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 SMAJ60AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMAJ60AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ60AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ60AHM3_A/H?
SMAJ60AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ60AHM3_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 SMAJ60AHM3_A/H?
For technical support, including SMAJ60AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ60AHM3_A/H requirements.
6.How does Aetrix verify that SMAJ60AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMAJ60AHM3_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 SMAJ60AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMAJ60AHM3_A/H?
All SMAJ60AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ60AHM3_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 SMAJ60AHM3_A/H part is unused and in its original packaging.
Return procedure for SMAJ60AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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