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Microchip Technology 1PMT5954C/TR13
- Part No.:
- 1PMT5954C/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5954C/TR13.pdf
- Description:
- DIODE ZENER 160V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,821
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Product details
Overview
1PMT5954C/TR13 from Microsemi is a 160 V, ±1% tolerance Zener diode in the Powermite® surface-mount package, rated for 3.0 W DC power dissipation at TAB 1 = 60°C, with 700 Ω dynamic impedance at 2.3 mA test current and thermal resistance of 30°C/W junction-to-tab. It serves as a precision voltage reference or overvoltage clamp in high-reliability power supply rails.
For engineers reviewing the 1PMT5954C/TR13 datasheet, 1PMT5954C/TR13 pinout, 1PMT5954C/TR13 application, or 1PMT5954C/TR13 equivalent, key selection criteria include tight voltage tolerance (±1%), low reverse leakage (<1 µA at 121.6 V), ESD robustness (>16 kV HBM), and thermal performance enabled by the full metallic bottom and integral heat sink tab.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal zener voltage of 160 V at 2.3 mA test current (IZT), exhibiting 700 Ω dynamic impedance (ZZT) and 121.6 V maximum reverse voltage (VR). Its knee current (IZK) is 0.25 mA with 6000 Ω knee impedance (ZZK), enabling stable regulation even near threshold.
The device uses a DO-216 molded surface-mount package with cathode designated by TAB 1, full metallic bottom to prevent solder flux entrapment, and an integral locking tab acting as a heat sink. Junction-to-tab thermal resistance is 30°C/W, supporting 3.0 W power dissipation when TAB 1 is held at 60°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 160 V ±1% at IZT = 2.3 mA - enables precise clamping or reference in high-voltage rails |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - supports sustained operation in compact, thermally constrained layouts |
| Dynamic Impedance (ZZT) | 700 Ω at IZT - limits voltage deviation under load current variation |
| Reverse Leakage (IR) | <1 µA at VR = 121.6 V - ensures minimal standby power loss in high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - allows direct thermal coupling to PCB copper for passive cooling |
| ESD Rating | >16 kV per HBM - provides robust handling during automated assembly and field operation |
| Knee Current (IZK) | 0.25 mA - defines minimum current for stable regulation onset |
Pinout & Package
Package: DO-216 (Powermite®), surface-mount, molded, full metallic bottom, cathode designated by TAB 1. Weight ≈ 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat-sinking terminal and electrical cathode connection; must be soldered to thermal pad for rated power handling |
| Lead 2 | Anode | Standard anode connection; mounted opposite TAB 1 on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Integral heat sink locking tab | Mechanically anchors device while conducting heat directly from junction to PCB via TAB 1 |
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term reliability and void-free solder joints |
| ±1% zener voltage tolerance | Reduces need for post-assembly calibration in precision voltage reference circuits |
| ESD rating >16 kV HBM | Enables safe handling in unshielded manufacturing environments without additional ESD protection circuitry |
| Compatible with automatic insertion | Designed for pick-and-place compatibility per EIA-481 tape-and-reel packaging (13-inch reel, 12,000 pcs) |
Applications
| Industrial Power Supply Monitoring | Telecom Line Card Overvoltage Protection |
|---|---|
Use Scenario: Monitoring 150–170 V DC intermediate bus in industrial PLC power modules. IC Role / Device Role / Timing Role: Precision shunt regulator providing stable 160 V reference for comparator-based fault detection. Use Value: ±1% tolerance ensures trip point accuracy within ±1.6 V, reducing false alarms in noisy factory environments. | Use Scenario: Clamping transients on -48 V telecom battery backup lines exposed to lightning-induced surges. IC Role / Device Role / Timing Role: High-energy transient suppressor placed across line-to-ground with series impedance. Use Value: 3.0 W power rating and 30°C/W thermal resistance allow absorption of 10/1000 µs surges without thermal runaway. |
| Medical Imaging HV Bias Supply | Aerospace Avionics Reference Calibration |
Use Scenario: Stabilizing 160 V bias rail for photomultiplier tube (PMT) gain control in portable X-ray detectors. IC Role / Device Role / Timing Role: Low-drift voltage reference maintaining PMT gain stability over temperature (-55°C to +150°C). Use Value: 0.25 mA knee current and 6000 Ω knee impedance enable regulation down to microamp-level bias currents. | Use Scenario: On-board calibration reference for ADCs measuring 100–200 V aircraft bus voltages. IC Role / Device Role / Timing Role: Traceable, high-stability shunt reference used during periodic self-test routines. Use Value: Tight ±1% tolerance and >16 kV HBM ESD rating support compliance with DO-160 Section 25 electrostatic discharge requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ160A | TVS diode (not Zener); 160 V standoff, 3.0 kW peak pulse power, bidirectional | Designed for transient suppression only; not suitable for continuous voltage regulation | Select only for surge-only protection; not a functional replacement for 1PMT5954C/TR13's precision DC regulation |
| BZX84-C160 | SOT-23 package; 160 V ±5%, 300 mW power, 1000 Ω ZZT at 5 mA | Limited thermal capacity and looser tolerance reduce suitability for 3 W, ±1% applications | Acceptable only in low-power, non-critical reference roles where PCB space is severely constrained |
Compared with SMCJ160A and BZX84-C160, the 1PMT5954C/TR13 uniquely combines ±1% DC voltage accuracy, 3.0 W continuous dissipation, and DO-216 thermal design-making it irreplaceable for high-stability, high-power Zener regulation where both precision and ruggedness are required.
Availability
1PMT5954C/TR13 is available at Aetrix Electronics and suitable for industrial power supply monitoring, telecom line card overvoltage protection, and medical imaging HV bias supply requiring stable component supply across extended production lifecycles.
Supply support for 1PMT5954C/TR13 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 to deliver high-power, surface-mount voltage regulation in compact packages with enhanced thermal and mechanical robustness for mission-critical power systems.
FAQ
What is the zener voltage tolerance for 1PMT5954C/TR13?
The "C" suffix in 1PMT5954C/TR13 denotes ±1% zener voltage tolerance at 2.3 mA test current and TAB 1 temperature of 30°C. This tighter tolerance is confirmed in Note 1 of the MSC0995 datasheet and distinguishes it from the standard ±5% (1PMT5954B) and ±2% (1PMT5954D) variants. The 1PMT5954C/TR13 achieves this via post-package screening and binning.
How is thermal management implemented in the 1PMT5954C/TR13 package?
The 1PMT5954C/TR13 uses a DO-216 Powermite® package with an integral locking tab (TAB 1) that functions as both cathode and primary heat sink. Its 30°C/W junction-to-tab thermal resistance requires direct soldering of TAB 1 to a copper thermal pad on the PCB. The full metallic bottom eliminates flux entrapment and improves thermal conduction, enabling full 3.0 W dissipation when TAB 1 is maintained at ≤60°C.
What does the "TR13" suffix indicate in 1PMT5954C/TR13?
The "TR13" suffix specifies EIA-481 compliant tape-and-reel packaging on a 13-inch reel containing 12,000 units. This format is optimized for high-volume automated placement equipment. It does not affect electrical specifications - all parameters for 1PMT5954C/TR13 match those of the same device in 7-inch reel (TR7) or cut-tape formats.
Can 1PMT5954C/TR13 be used as a substitute for 1PMT5954B?
Yes, 1PMT5954C/TR13 is a direct functional upgrade to 1PMT5954B, sharing identical package, pinout, power rating, and zener voltage (160 V), but with improved ±1% tolerance versus ±5%. No PCB layout change is needed. However, due to tighter binning, 1PMT5954C/TR13 may exhibit lower unit-to-unit VZ variation and reduced need for system-level trimming in precision applications.
What is the maximum reverse voltage (VR) rating for 1PMT5954C/TR13?
The maximum reverse voltage (VR) for 1PMT5954C/TR13 is 121.6 V, defined as the voltage at which reverse leakage current (IR) is guaranteed ≤1 µA. This value is derived from the zener current rating (IZM = 14.9 mA) and power limit (3.0 W), and appears in the Electrical Characteristics table. Operation above 121.6 V risks exceeding IR specification and potential thermal instability.
1PMT5954C/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 160 V
- Tolerance:
- ±2%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 700 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 121.6 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
1PMT5954C/TR13 FAQ
1.How can I place an order for 1PMT5954C/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5954C/TR13 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 1PMT5954C/TR13 reliable?
The price and inventory of 1PMT5954C/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5954C/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5954C/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5954C/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5954C/TR13?
1PMT5954C/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5954C/TR13 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 1PMT5954C/TR13?
For technical support, including 1PMT5954C/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5954C/TR13 requirements.
6.How does Aetrix verify that 1PMT5954C/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5954C/TR13 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 1PMT5954C/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5954C/TR13?
All 1PMT5954C/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5954C/TR13, 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 1PMT5954C/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5954C/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5954C/TR13 Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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