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Vishay General Semiconductor - Diodes Division SMAJ130CAHM3/I
- Part No.:
- SMAJ130CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ130CAHM3/I.pdf
- Description:
- TVS DIODE 130VWM 209VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,455
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Product details
Overview
SMAJ130CAHM3/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 130 V standoff voltage (VWM), 144–159 V breakdown range (VBR), 209 V maximum clamping voltage (VC) at 1.4 A peak pulse current, and 400 W peak pulse power (10/1000 μs waveform), targeting protection of MOSFETs, ICs, and sensor interfaces in industrial and automotive systems.
For engineers reviewing the SMAJ130CAHM3/I datasheet, SMAJ130CAHM3/I pinout, SMAJ130CAHM3/I application, or SMAJ130CAHM3/I equivalent, this device is evaluated for ESD/surge immunity in 12–48 V DC power rails, bidirectional data line protection, and AEC-Q101-compliant automotive subsystems requiring halogen-free, RoHS-compliant components with MSL Level 1 reflow capability.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering consistent clamping behavior without polarity dependency. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM), while the low incremental surge resistance enables rapid energy diversion during fast transients (e.g., ISO 7637-2 pulse 1/2a/5a).
The device is rated for 150 °C maximum junction temperature and exhibits a +0.108 %/°C temperature coefficient of VBR - critical for thermal stability in under-hood automotive environments. Its 120 °C/W junction-to-ambient thermal resistance requires minimum 5.0 mm × 5.0 mm copper pads per terminal to sustain 400 W peak pulse power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 130 V - maximum continuous reverse operating voltage before clamping initiates; defines safe operating margin for 125 V nominal DC bus applications. |
| VBR min/max | 144 V / 159 V at 1.0 mA - verified breakdown threshold range ensuring predictable turn-on during overvoltage events. |
| VC @ IPPM | 209 V at 1.4 A - clamping voltage under 10/1000 μs surge; limits downstream component stress to <210 V. |
| PPPM | 400 W - peak pulse power handling (10/1000 μs); supports IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge immunity. |
| ID @ VWM | ≤1.0 μA - ultra-low reverse leakage at standoff voltage; preserves efficiency in high-impedance sensing circuits. |
| TJ max | +150 °C - enables operation in engine control units, motor drives, and industrial PLCs with elevated ambient temperatures. |
| Package | SMA (DO-214AC) - surface-mount, low-profile package compatible with automated SMT assembly and J-STD-020 MSL Level 1 reflow. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional conduction path | Both terminals function identically; no cathode band marking - installed without orientation concern in AC-coupled or floating lines. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Supports robust immunity against load dump and inductive switching surges in 24 V automotive systems. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, HAST, and mechanical shock per AEC standard. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements for green manufacturing. |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without moisture sensitivity concerns - eliminates bake-out step in production. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes let-through voltage during transients - critical for protecting 150 V-rated MOSFETs and gate drivers. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply lines in body control modules against ISO 7637-2 pulse 5a (load dump up to 60 V superimposed on 27 V). IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed upstream of DC/DC converters and microcontrollers. Use Value: Limits rail voltage to ≤209 V during 100 ms load dump events, preventing latch-up or oxide breakdown in downstream ICs. |
Use Scenario: Shielding analog inputs of pressure/temperature sensors in factory automation PLCs from EFT bursts (IEC 61000-4-4). IC Role / Device Role / Timing Role: Low-capacitance TVS shunting transients between signal line and ground before op-amp input stage. Use Value: Sub-1.0 μA leakage preserves sensor offset accuracy; 209 V clamping prevents ADC saturation during ±2 kV EFT coupling. |
| Telecom DC Feeder Protection | Motor Drive Gate Driver Protection |
Use Scenario: Safeguarding -48 V telecom power feeds against lightning-induced surges (IEC 61000-4-5, 2 Ω/12 Ω coupling). IC Role / Device Role / Timing Role: Primary-level TVS on feed line entering remote radio head enclosure. Use Value: 400 W rating handles 10/1000 μs surges up to 4 kV; bidirectional symmetry accommodates polarity reversal during fault conditions. |
Use Scenario: Clamping Miller-induced spikes on half-bridge gate drive lines in BLDC inverters. IC Role / Device Role / Timing Role: Fast-response TVS placed between gate and source of high-side MOSFETs. Use Value: 1.4 ns response time suppresses >100 V ringing within 10 ns, preventing false turn-on and shoot-through failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ130CAHE3/I | Same electrical specs, but RoHS-compliant without halogen-free certification; not AEC-Q101 qualified. | Restricted to commercial/industrial use; unsuitable for automotive OEM designs requiring AEC-Q101 and halogen-free compliance. | Select when cost sensitivity outweighs automotive qualification and halogen-free requirements. |
| SMBJ130CAHM3/I | Same VWM/VBR/VC ratings, but SMB (DO-214AA) package - 25 % larger footprint and 600 W PPPM rating. | Higher power handling suits 48 V battery systems; larger pad area required - not drop-in compatible with SMA layout. | Choose when surge energy exceeds 400 W or board space allows SMB footprint for margin extension. |
Compared with SMAJ130CAHM3/I, SMAJ130CAHE3/I lacks AEC-Q101 and halogen-free validation - limiting automotive deployment - while SMBJ130CAHM3/I offers higher surge capacity at the cost of PCB area and non-interchangeable packaging.
Availability
SMAJ130CAHM3/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power feeds, and motor drive gate protection requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMAJ130CAHM3/I 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, TVS devices, and optoelectronics with emphasis on reliability, power efficiency, and automotive-grade qualification.
The SMAJ series was engineered specifically for high-reliability transient suppression in harsh environments - balancing low clamping voltage, fast response, and AEC-Q101 compliance for automotive and industrial power electronics.
FAQ
What is the clamping voltage of SMAJ130CAHM3/I under a 10/1000 μs surge?
The SMAJ130CAHM3/I clamps to a maximum of 209 V when subjected to its rated peak pulse current of 1.4 A using the standardized 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88390 and defines the upper voltage limit imposed on protected circuitry during surge events - a key parameter for ensuring downstream ICs remain within absolute maximum ratings.
Is SMAJ130CAHM3/I suitable for automotive applications?
Yes, SMAJ130CAHM3/I is AEC-Q101 qualified and halogen-free, making it suitable for automotive applications including body electronics, infotainment power supplies, and ADAS sensor interfaces. The HM3 suffix explicitly denotes AEC-Q101 qualification and RoHS/halogen-free compliance - confirmed in the ordering information table on page 3 of Vishay document 88390.
Does SMAJ130CAHM3/I have polarity markings on the package?
No, SMAJ130CAHM3/I has no polarity markings because it is a bidirectional TVS diode. As stated in the "Mechanical Data" section, "no marking on bidirectional types." Both terminals are functionally identical, allowing installation in either orientation - a design advantage for differential or floating signal lines where polarity is undefined.
What is the maximum junction temperature rating for SMAJ130CAHM3/I?
The SMAJ130CAHM3/I has a maximum junction temperature (TJ max) of +150 °C, as specified in the "Maximum Ratings" table on page 2 of Vishay document 88390. This rating enables reliable operation in under-hood automotive environments and industrial enclosures where ambient temperatures exceed 105 °C, provided thermal design meets the recommended 5.0 mm × 5.0 mm copper pad layout.
How does the leakage current of SMAJ130CAHM3/I compare to unidirectional variants?
SMAJ130CAHM3/I exhibits ≤1.0 μA maximum reverse leakage current (ID) at its 130 V standoff voltage (VWM), matching the specification of unidirectional SMAJ130A variants. This low leakage is maintained due to identical junction construction - only polarity configuration differs - ensuring minimal impact on high-impedance sensor bias networks or precision reference circuits.
SMAJ130CAHM3/I 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):
- 130V
- Voltage - Breakdown (Min):
- 144V
- Voltage - Clamping (Max) @ Ipp:
- 209V
- Current - Peak Pulse (10/1000µs):
- 1.4A
- 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)
SMAJ130CAHM3/I FAQ
1.How can I place an order for SMAJ130CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ130CAHM3/I 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 SMAJ130CAHM3/I reliable?
The price and inventory of SMAJ130CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ130CAHM3/I is usually 5 days.
3.What payment methods are accepted for SMAJ130CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ130CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ130CAHM3/I?
SMAJ130CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ130CAHM3/I 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 SMAJ130CAHM3/I?
For technical support, including SMAJ130CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ130CAHM3/I requirements.
6.How does Aetrix verify that SMAJ130CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SMAJ130CAHM3/I 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 SMAJ130CAHM3/I meets industry standards.
7.What is the process for return or replacement of SMAJ130CAHM3/I?
All SMAJ130CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ130CAHM3/I, 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 SMAJ130CAHM3/I part is unused and in its original packaging.
Return procedure for SMAJ130CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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