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Vishay General Semiconductor - Diodes Division SA150HE3/54
- Part No.:
- SA150HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA150HE3/54.pdf
- Description:
- TVS DIODE 150VWM 268VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,004
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Product details
Overview
SA150HE3/54 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for primary overvoltage protection of DC power rails and signal lines. It features 150 V stand-off voltage (VWM), 167–185 V breakdown voltage (VBR) at 1 mA, 500 W peak pulse power (10/1000 μs), 2.1 A maximum reverse leakage at VWM, and clamps to ≤243 V at 2.1 A peak pulse current - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the SA150HE3/54 datasheet, SA150HE3/54 pinout, SA150HE3/54 application, or SA150HE3/54 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-15 mechanical data, clamping behavior under surge, and direct alternatives for ESD/surge protection design-in.
Technical Context
The SA150HE3/54 operates as a uni-directional avalanche diode with glass-passivated junction, optimized for fast response (<1 ns) to transient events such as ISO 7637-2 load dump or IEC 61000-4-5 surges. Its 175 °C maximum junction temperature and 70 A IFSM rating support robust operation in automotive engine control units and industrial PLC power stages.
Clamping performance is defined by VC = 243 V at IPPM = 2.1 A (10/1000 μs waveform), with incremental surge resistance derived from low VF (3.5 V max at 100 A forward) and tight VBR tolerance (±5 %). The HE3 suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins; sets protection threshold for 12 V/24 V/48 V DC systems. |
| VBR (min/max) | 167 V / 185 V at IT = 1 mA - Confirmed avalanche onset range; ensures reliable triggering above normal operating transients. |
| PPPM | 500 W (10/1000 μs) - Sustains single high-energy surges typical of automotive load dump without failure. |
| VC @ IPPM | ≤243 V at 2.1 A - Clamped voltage level protecting downstream MOSFETs or ICs rated ≤250 V absolute max. |
| ID @ VWM | ≤2.1 μA - Ultra-low leakage preserves battery life in always-on automotive modules. |
| TJ max. | 175 °C - Enables placement near heat-generating components in under-hood ECUs. |
| IFSM | 70 A (10 ms half-sine) - Withstands repetitive inrush currents during cold-cranking events. |
Pinout & Package
SA150HE3/54 uses the DO-204AC (DO-15) axial-leaded package: molded epoxy body, matte tin-plated leads compliant with J-STD-002, 0.300" ±0.070" lead length, and cathode indicated by color band. RoHS-compliant and AEC-Q101 qualified per HE3 suffix.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward current entry / surge return path | Connected to ground or low-impedance return plane; carries full surge current during clamping. |
| Cathode (banded end) | Avalanche junction anode / protected line connection | Connected to the line being protected (e.g., +12 V rail); reverse-biased during normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR over lifetime and temperature; eliminates moisture-induced parameter drift in humid environments. |
| AEC-Q101 qualification | Validated for automotive applications including powertrain, body electronics, and ADAS sensors per stress test requirements. |
| 500 W peak pulse power | Meets ISO 7637-2 Pulse 5a (load dump) energy absorption without derating at TA ≤ 85 °C. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes let-through voltage to protect sensitive gate oxides in power MOSFETs and microcontrollers. |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling, critical for long-life automotive and industrial deployments. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: Protecting 12 V/24 V power input of engine control unit (ECU) against ISO 7637-2 load dump pulses up to 100 V. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between battery rail and DC-DC converter input. Use Value: Limits voltage to ≤243 V during 2.1 A surge, preventing damage to downstream buck controller ICs rated for 28 V input max. |
Use Scenario: Shielding analog output of pressure sensor (0–5 V) from ESD events on factory floor wiring harnesses. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at connector interface before op-amp buffer stage. Use Value: Sub-μA leakage at 5 V ensures no offset error; <1 ns response prevents latch-up in precision ADC front-end. |
| Telecom DC Power Feeder Protection | Consumer Appliance Motor Drive Surge Absorption |
Use Scenario: Safeguarding -48 V telecom rectifier output against lightning-induced surges on outdoor cabinet feeds. IC Role / Device Role / Timing Role: Uni-directional TVS connected cathode-to-rail to clamp positive transients only. Use Value: 150 V VWM allows safe operation across -36 V to -72 V nominal range; 500 W rating handles IEC 61000-4-5 Level 4 surges. |
Use Scenario: Suppressing inductive kickback from brushed DC motor commutation in smart washing machine control board. IC Role / Device Role / Timing Role: Mounted across motor terminals to absorb flyback energy during PWM switching. Use Value: 70 A IFSM withstands repeated 50 A stall currents; 175 °C TJ rating supports sealed enclosure thermal profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150A-E3/52 (Vishay) | Same VWM/VBR/PPPM specs but in SMA (DO-214AC) surface-mount package; 1.5 W PD vs. 3.0 W for SA150HE3/54. | Preferred for space-constrained PCBs; unsuitable for high-temperature through-hole mounting or manual repair. | Select SMAJ150A-E3/52 when board real estate is limited and thermal management via copper pour is feasible. |
| P6SMB150A (Littelfuse) | Identical VWM (150 V), VBR (167–185 V), PPPM (500 W), but TO-277 (SMB) package; 1.5 W PD, no AEC-Q101 qualification. | Lacks automotive qualification; suitable for industrial/commercial use where reliability testing is customer-managed. | Choose P6SMB150A for cost-sensitive non-automotive designs requiring same electrical performance without AEC-Q101 traceability. |
Compared with SA150HE3/54, SMAJ150A-E3/52 offers identical protection specs in a smaller footprint but reduced power dissipation and no axial-leaded serviceability, while P6SMB150A matches key ratings but omits AEC-Q101 validation - making SA150HE3/54 the sole choice for production automotive applications requiring documented qualification and through-hole assembly.
Availability
SA150HE3/54 is available at Aetrix Electronics and suitable for automotive ECU power inputs, industrial sensor interfaces, telecom DC feeder lines, and consumer appliance motor drive circuits requiring stable component supply across multi-year production cycles.
Supply support for SA150HE3/54 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 passive components with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The SAxxxA series was developed specifically for robust transient suppression in harsh-environment applications - targeting automotive power distribution, industrial automation, and infrastructure equipment where AEC-Q101 compliance and repeatable clamping are mandatory.
FAQ
What is the AEC-Q101 qualification status of SA150HE3/54?
The SA150HE3/54 carries full AEC-Q101 qualification per the Vishay datasheet revision 18-Sep-12, confirmed by HE3 suffix designation. This includes stress testing for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life - validating its suitability for automotive powertrain and body electronics applications. SA150HE3/54 meets all required failure rate and parametric stability criteria.
Does SA150HE3/54 have bidirectional capability?
No, SA150HE3/54 is strictly a uni-directional TVS diode, as indicated by the "A" suffix (not "CA"). It conducts only in forward bias and clamps reverse transients above VBR; it does not suppress positive-going transients on grounded lines. For bi-directional protection, SA150CA variants exist, but SA150HE3/54 is specified exclusively for cathode-to-line configuration in DC systems.
What is the maximum clamping voltage of SA150HE3/54 under standard test conditions?
The maximum clamping voltage (VC) of SA150HE3/54 is 243 V, measured at peak pulse current (IPPM) of 2.1 A using the 10/1000 μs waveform per Figure 1 in the datasheet. This value represents the upper limit of voltage let-through during surge events and is guaranteed across the full operating temperature range (−55 °C to +175 °C).
Can SA150HE3/54 be used in place of SA150A-E3/54?
Yes - SA150HE3/54 and SA150A-E3/54 share identical electrical specifications (VWM, VBR, PPPM, VC), DO-204AC package, and RoHS compliance. The sole difference is qualification: SA150HE3/54 adds AEC-Q101 and JESD 201 Class 2 whisker resistance, while SA150A-E3/54 is commercial-grade. SA150HE3/54 is fully backward-compatible and preferred for automotive use.
What is the thermal derating behavior of SA150HE3/54 above 25 °C ambient?
SA150HE3/54 follows linear derating per Figure 2: peak pulse power drops to 50 % at TJ = 125 °C and to zero at TJ = 175 °C. Steady-state power dissipation (PD = 3.0 W) derates linearly from TL = 75 °C (Figure 5), reaching 0 W at TL = 175 °C. Designers must calculate junction temperature using θJA and actual power dissipation to ensure operation within limits.
SA150HE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 268V
- Current - Peak Pulse (10/1000µs):
- 1.9A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA150HE3/54 FAQ
1.How can I place an order for SA150HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA150HE3/54 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 SA150HE3/54 reliable?
The price and inventory of SA150HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA150HE3/54 is usually 5 days.
3.What payment methods are accepted for SA150HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA150HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA150HE3/54?
SA150HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA150HE3/54 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 SA150HE3/54?
For technical support, including SA150HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA150HE3/54 requirements.
6.How does Aetrix verify that SA150HE3/54 is sourced from the original manufacturer or authorized distributors?
All SA150HE3/54 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 SA150HE3/54 meets industry standards.
7.What is the process for return or replacement of SA150HE3/54?
All SA150HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA150HE3/54, 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 SA150HE3/54 part is unused and in its original packaging.
Return procedure for SA150HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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