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Microchip Technology 1N5350BE3/TR13
- Part No.:
- 1N5350BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5350BE3/TR13.pdf
- Description:
- DIODE ZENER 13V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:2,951
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Product details
Overview
1N5350BE3/TR13 from Microsemi is a 5.0 W axial-leaded silicon Zener diode with a nominal regulation voltage of 13 V, ±5% tolerance (B suffix), 100 mA maximum Zener test current (IZT), 7.0 V maximum voltage regulation (ΔVZ), and 2.5 Ω maximum dynamic impedance (ZZ) at IZT - used for precision voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the 1N5350BE3/TR13 datasheet, 1N5350BE3/TR13 pinout, 1N5350BE3/TR13 application, or 1N5350BE3/TR13 equivalent, key selection criteria include Zener voltage stability under varying load current, thermal resistance (25 °C/W junction-to-lead), surge current rating (7.0 A), RoHS-compliant matte-tin plating, and JEDEC T-18 package compatibility with manual or wave soldering.
Technical Context
This device operates as a two-terminal voltage regulator in reverse-biased mode, with cathode indicated by a band and rated for continuous DC operation up to 100 mA at 25 °C lead temperature. Its low dynamic impedance (2.5 Ω) ensures minimal voltage deviation across 10–50% of IZM, and its 25 °C/W thermal resistance enables stable regulation when mounted with ≥10 mm lead length from body.
The 1N5350BE3/TR13 meets MIL-STD-750 ESD immunity (Method 1020), withstands 8.3 ms half-sine surge currents up to 7.0 A, and exhibits <0.25 V voltage regulation (ΔVZ) - critical for feedback accuracy in switching power supplies and analog reference circuits requiring tight DC stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13 V ±5% - defines precise regulation point for feedback networks and reference rails. |
| Power Dissipation (Pd) | 5.0 W at TL = 25 °C - supports high-current regulation with adequate heatsinking via leads. |
| Zener Test Current (IZT) | 100 mA - operating point where VZ and ZZ are specified; sets minimum bias for stable regulation. |
| Dynamic Impedance (ZZ) | 2.5 Ω max at IZT - ensures <26 mV output variation per 10 mA load change near regulation point. |
| Voltage Regulation (ΔVZ) | 0.25 V max - difference between VZ measured at 10% and 50% of IZM; quantifies line regulation fidelity. |
| Surge Current (IZSM) | 7.0 A peak (8.3 ms half-sine) - enables transient overvoltage clamping without failure. |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - allows direct thermal path to PCB copper or chassis for power handling. |
Pinout & Package
Package: JEDEC T-18 axial-leaded plastic encapsulated case (void-free UL94V-0 epoxy), 0.7 g weight, cathode identified by color band. Leads are RoHS-compliant annealed matte-tin plated, solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-bias reference terminal | Connected to system ground or lower-potential node; forms reference return path in shunt regulator. |
| Cathode | Regulated output terminal | Banded end; connected to regulated rail; maintains 13 V relative to anode under reverse conduction. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener family | Ensures standardized mechanical dimensions, marking, and test methodology across global supply chain. |
| Moisture sensitivity Level 1 | No dry pack required - simplifies SMT/through-hole handling and eliminates bake-out prior to assembly. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Eliminates need for special ESD handling during board assembly or field service. |
| RoHS-compliant (e3 suffix) | Meets EU Directive 2011/65/EU; tin-lead-free matte-tin plating compatible with Pb-free solder processes. |
| Tape-and-reel packaging (TR13 suffix) | Enables automated pick-and-place placement; EIA-296 compliant carrier tape for high-volume production. |
Applications
| Switching Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulates output voltage in flyback or forward converter feedback loop using optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 13 V reference to TL431 or similar error amplifier. Use Value: Maintains ±1% output regulation across line/load transients due to low ΔVZ (0.25 V) and 2.5 Ω ZZ. |
Use Scenario: Clamps transient surges on 12 V automotive or industrial control bus lines. IC Role / Device Role / Timing Role: Two-terminal crowbar element absorbing 7.0 A surge peaks without degradation. Use Value: Prevents downstream IC damage by limiting bus voltage to ≤13.25 V during 8.3 ms transients. |
| Programmable Reference Source | DC Voltage Monitor Threshold |
Use Scenario: Sets adjustable threshold in precision comparator circuit for battery charge termination. IC Role / Device Role / Timing Role: Stable 13 V reference input to LM393 comparator hysteresis network. Use Value: Enables repeatable 13.0 V ±0.65 V trip point across -65 °C to +150 °C operating range. |
Use Scenario: Monitors 12 V rail integrity in telecom shelf management systems. IC Role / Device Role / Timing Role: Reverse-biased sensor detecting undervoltage/overvoltage faults via leakage current shift. Use Value: Provides fail-safe detection with <1 μA IR at 10.4 V (80% VZ), enabling reliable fault flagging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5350B | No TR13 tape-and-reel; same electrical specs and T-18 package. | Requires manual loading or bulk feed; unsuitable for automated SMT lines. | Select 1N5350B only for prototyping or low-volume hand-soldered assemblies. |
| MMSZ5242B-TP | Surface-mount SOD-123 package (200 mW), 12 V nominal, ±5%, 20 mA IZT. | Limited power handling; not interchangeable for 5 W thermal loads or surge clamping. | Choose MMSZ5242B-TP only for space-constrained low-power bias/reference use - not a drop-in replacement. |
Compared with 1N5350BE3/TR13, the 1N5350B lacks tape-and-reel support but matches all electrical and thermal specs, while MMSZ5242B-TP offers footprint reduction at the cost of 96% lower power rating and incompatible mounting - making 1N5350BE3/TR13 irreplaceable for high-energy regulation or surge suppression.
Availability
1N5350BE3/TR13 is available at Aetrix Electronics and suitable for switching power supplies, overvoltage protection circuits, programmable reference sources, and DC voltage monitor thresholds requiring stable component supply with full RoHS compliance and automated assembly support.
Supply support for 1N5350BE3/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, RF, and timing solutions for aerospace, defense, and industrial markets.
The 1N53xxB series was designed specifically for ruggedized 5 W voltage regulation in harsh-environment power systems - emphasizing thermal robustness, surge resilience, and long-term parametric stability over wide temperature ranges.
FAQ
What is the Zener voltage tolerance of the 1N5350BE3/TR13?
The 1N5350BE3/TR13 has a Zener voltage tolerance of ±5%, indicated by the "B" suffix in its part number. This means its actual regulation voltage falls within 12.35 V to 13.65 V at 100 mA test current and 25 °C lead temperature. The e3 suffix confirms RoHS compliance, and TR13 denotes EIA-296 tape-and-reel packaging - none of which affect the ±5% VZ tolerance specification defined in Microsemi's 1N5333B–1N5388B datasheet.
Can the 1N5350BE3/TR13 be used in surface-mount designs?
No, the 1N5350BE3/TR13 uses a through-hole JEDEC T-18 axial-leaded package and is not compatible with surface-mount assembly. For SMT equivalents, Microsemi offers the SMBJ5350B (DO-214AA) and SMBG5350B (DO-214AB) variants - both rated for 5 W but requiring different PCB footprints and reflow profiles. The 1N5350BE3/TR13 must be mounted with ≥10 mm lead length from body to achieve its specified 25 °C/W thermal resistance.
What is the maximum steady-state power dissipation for the 1N5350BE3/TR13 on a standard FR4 PCB?
When mounted on a standard FR4 PCB (1 oz copper, 4 mm² pads, 1 mm track width, 25 mm length), the 1N5350BE3/TR13 has a steady-state power dissipation limit of 1.47 W at 25 °C ambient temperature. This derated value reflects its higher junction-to-ambient thermal resistance (85 °C/W) versus junction-to-lead (25 °C/W). Full 5.0 W operation requires direct lead-to-heatsink mounting at TL = 25 °C, as confirmed in Microsemi's Figure 1 derating curve.
Does the 1N5350BE3/TR13 meet MIL-PRF-19500 screening standards?
The base 1N5350BE3/TR13 does not include military screening; it is a commercial-grade part with RoHS compliance (e3) and tape-and-reel packaging (TR13). To obtain JAN, JANTX, or JANTXV versions, a prefix must be added: MQ1N5350BE3/TR13 (JAN), MX1N5350BE3/TR13 (JANTX), or MV1N5350BE3/TR13 (JANTXV). These prefixes activate MIL-PRF-19500 testing but require separate ordering and qualification documentation.
What is the reverse leakage current specification for the 1N5350BE3/TR13 at 10.4 V?
At VR = 10.4 V (80% of nominal 13 V Zener voltage), the 1N5350BE3/TR13 specifies a maximum reverse leakage current (IR) of 1.0 μA. This value is consistent across all B-suffix parts in the 1N5333B–1N5388B family and is measured per JEDEC test conditions. Low IR at sub-VZ voltages ensures minimal quiescent current draw in monitoring or threshold-detection applications where the device remains below conduction threshold.
1N5350BE3/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 13 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 9.4 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 1 A
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- T-18
1N5350BE3/TR13 FAQ
1.How can I place an order for 1N5350BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5350BE3/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 1N5350BE3/TR13 reliable?
The price and inventory of 1N5350BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5350BE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5350BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5350BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5350BE3/TR13?
1N5350BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5350BE3/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 1N5350BE3/TR13?
For technical support, including 1N5350BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5350BE3/TR13 requirements.
6.How does Aetrix verify that 1N5350BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5350BE3/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 1N5350BE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5350BE3/TR13?
All 1N5350BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5350BE3/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 1N5350BE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5350BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5350BE3/TR13 Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MMSZ4682T1G
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MM5Z5V1ST1G
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