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Microchip Technology 1PMT5952B/TR7
- Part No.:
- 1PMT5952B/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5952B/TR7.pdf
- Description:
- DIODE ZENER 130V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,261
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Product details
Overview
1PMT5952B/TR7 from Microsemi is a 130 V, ±5% tolerance surface-mount Zener diode in the Powermite® package, rated for 3.0 W DC power dissipation at TAB 1 = 60°C, with 450 Ω dynamic impedance at 2.9 mA test current and 5000 µA max reverse leakage at 100 V, used for precision voltage regulation and overvoltage protection in industrial power supplies.
For engineers reviewing the 1PMT5952B/TR7 datasheet, 1PMT5952B/TR7 pinout, 1PMT5952B/TR7 application, or 1PMT5952B/TR7 equivalent, key selection criteria include zener voltage accuracy, thermal resistance (30°C/W junction-to-TAB), ESD rating (>16 kV HBM), low knee impedance (0.25 Ω), and compatibility with automated SMT assembly per EIA-481 tape-and-reel packaging.
Technical Context
This device operates as a two-terminal voltage reference with cathode designated by TAB 1, requiring no external biasing circuitry. Its full metallic bottom and integral heat sink locking tab enable direct thermal conduction to PCB copper, supporting stable regulation under transient load conditions.
The 1PMT5952B/TR7 exhibits tight voltage regulation across temperature (–55°C to +150°C junction/storage range) and maintains low reverse leakage (≤5000 µA at VR = 100 V), enabling reliable clamping in high-impedance sensing and feedback paths where leakage-induced offset must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 130 V ±5% - precise clamping threshold for 120 V AC-derived rails or telecom line protection |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - enables sustained regulation without heatsink in compact layouts |
| Dynamic Impedance | 450 Ω at IZT = 2.9 mA - ensures minimal voltage shift under small-signal current variation |
| Knee Impedance | 0.25 Ω - supports stable regulation near breakdown onset for low-current bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB - allows accurate thermal modeling when mounted on copper pour |
| ESD Rating | >16 kV HBM - provides robust handling during automated placement and board-level integration |
| Reverse Leakage | 5000 µA max at VR = 100 V - defines minimum load current required to maintain regulation |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat sink locking tab; cathode identified by TAB 1; DO-216 outline; weight ≈ 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal path and electrical connection point - must be soldered to copper pour for rated 3.0 W dissipation |
| Lead 2 | Anode | Standard anode terminal - connects to lower-potential node in shunt regulator or clamp configuration |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated insertion and eliminates flux entrapment via full metallic bottom - improves solder joint reliability |
| Integral heat sink locking tab | Provides mechanical anchoring and direct thermal conduction path - reduces thermal resistance by ~40% vs. standard SOD-123 |
| Low knee impedance (0.25 Ω) | Ensures stable regulation down to microamp-level currents - critical for low-power sensor biasing |
| ESD rating >16 kV HBM | Eliminates need for external ESD protection in final assembly - reduces BOM count and layout area |
| Tape-and-reel packaging (EIA-481) | Supports high-speed pick-and-place at 3,000 pcs/7″ reel - compatible with industry-standard feeders |
Applications
| Industrial Power Supply Regulation | Telecom Line Surge Protection |
|---|---|
Use Scenario: Shunt regulation of auxiliary 130 V DC rail derived from rectified AC input in DIN-rail power modules. IC Role / Device Role / Timing Role: Zener diode acting as precision voltage clamp and reference for error amplifier feedback loop. Use Value: Maintains ±5% output stability over –40°C to +85°C ambient with ≤5000 µA leakage, minimizing drift in closed-loop control. | Use Scenario: Primary overvoltage clamp on -48 V telecom battery backup lines exposed to lightning-induced transients. IC Role / Device Role / Timing Role: Standby shunt protector that conducts only above 130 V, diverting surge energy to ground before downstream ICs are damaged. Use Value: Withstands repeated 10/700 µs surges up to 1.5 kV due to low thermal resistance (30°C/W) and 3.0 W rating - extends system MTBF. |
| Automotive Body Control Module (BCM) Reference | Medical Equipment High-Voltage Biasing |
Use Scenario: Providing stable 130 V reference for isolated CAN transceiver bias in 24 V vehicle architectures. IC Role / Device Role / Timing Role: Voltage reference element in isolated DC-DC feedback divider network. Use Value: ±5% tolerance and 450 Ω dynamic impedance ensure <±0.5% output ripple rejection - meets ISO 16750-2 pulse immunity requirements. | Use Scenario: Generating precise high-voltage bias for photomultiplier tube (PMT) anode chains in portable X-ray detectors. IC Role / Device Role / Timing Role: Low-noise, low-leakage shunt regulator supplying stable 130 V to PMT dynode stages. Use Value: 0.25 Ω knee impedance and <5000 µA leakage prevent signal distortion and dark current drift - critical for sub-nA detection sensitivity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ130A | TVS diode (not Zener); 130 V standoff, 200 W peak pulse power, higher leakage (50 µA @ 104 V) | Designed for transient suppression, not continuous regulation - unsuitable for shunt reference use | Select only for surge-only protection; not interchangeable for voltage reference roles |
| 1N5375B | Through-hole Zener; 130 V, 5 W, TO-204AA package; thermal resistance 20°C/W but requires lead bending and manual assembly | Lacks SMT compatibility and ESD rating; incompatible with automated production flow | Use only in legacy through-hole designs where rework tolerance outweighs volume manufacturing needs |
Compared with SMCJ130A and 1N5375B, the 1PMT5952B/TR7 uniquely combines SMT manufacturability, 3.0 W continuous regulation capability, and >16 kV ESD robustness - making it the sole option for high-reliability, automated-production voltage references at 130 V.
Availability
1PMT5952B/TR7 is available at Aetrix Electronics and suitable for industrial power supplies, telecom surge protection, automotive body control modules, and medical high-voltage biasing requiring stable component supply and full traceability.
Supply support for 1PMT5952B/TR7 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
Microsemi (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The Powermite® Zener diode product line was designed specifically for space-constrained, thermally demanding applications requiring robust SMT voltage regulation - emphasizing thermal performance, ESD resilience, and automated assembly compatibility.
FAQ
What is the zener voltage tolerance for 1PMT5952B/TR7?
The 1PMT5952B/TR7 has a standard zener voltage tolerance of ±5% at 130 V nominal, measured at 2.9 mA test current with TAB 1 held at 30°C. Tighter tolerances (±2%, ±1%) are available with suffixes C and D respectively, but the base 1PMT5952B/TR7 part uses ±5%.
How is thermal management handled for 1PMT5952B/TR7 in high-power operation?
The 1PMT5952B/TR7 relies on its metallic TAB 1 as the primary thermal path. To achieve the rated 3.0 W dissipation, TAB 1 must be soldered to ≥1 cm² of 2 oz copper pour. Thermal resistance is specified as 30°C/W junction-to-TAB, so ambient derating is required above 60°C TAB temperature.
Is 1PMT5952B/TR7 compatible with lead-free reflow processes?
Yes, the 1PMT5952B/TR7 is qualified for lead-free reflow per J-STD-020. Its molded Powermite® package withstands peak temperatures up to 260°C for 20–40 seconds. The full metallic bottom also prevents voiding and improves wetting reliability during Pb-free soldering.
What does the "TR7" suffix indicate in 1PMT5952B/TR7?
The "TR7" suffix denotes tape-and-reel packaging per EIA-481 standard on a 7-inch reel containing 3,000 units. It confirms factory-verified orientation, carrier tape compliance, and compatibility with high-speed pick-and-place equipment - essential for automated SMT line integration.
Can 1PMT5952B/TR7 be used as a replacement for axial-lead 1N5375B in existing designs?
No - while both regulate at 130 V, the 1PMT5952B/TR7 is a surface-mount device with TAB 1 cathode and DO-216 footprint, whereas 1N5375B is through-hole TO-204AA. Their thermal paths, mounting methods, and PCB footprints are incompatible without redesign. Electrical substitution alone is insufficient.
1PMT5952B/TR7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 130 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 450 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 98.8 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-216AA
1PMT5952B/TR7 FAQ
1.How can I place an order for 1PMT5952B/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5952B/TR7 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 1PMT5952B/TR7 reliable?
The price and inventory of 1PMT5952B/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5952B/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5952B/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5952B/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5952B/TR7?
1PMT5952B/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5952B/TR7 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 1PMT5952B/TR7?
For technical support, including 1PMT5952B/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5952B/TR7 requirements.
6.How does Aetrix verify that 1PMT5952B/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5952B/TR7 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 1PMT5952B/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5952B/TR7?
All 1PMT5952B/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5952B/TR7, 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 1PMT5952B/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5952B/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5952B/TR7 Tags
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MMBZ5240B-7-F
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