JinkoSolar 620W Tiger Neo N-Type Solar Modules

Comprehensive Technical Specification & Engineering Datasheet

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1. Overview & Positioning

The JinkoSolar 620W module belongs to the flagship Tiger Neo N-type TOPCon family, engineered specifically for commercial & industrial (C&I) rooftops, ground-mount arrays, and utility-scale installations.

By deploying N-type Tunnel Oxide Passivated Contact (TOPCon) architecture, this module provides lower temperature derating, minimal degradation, superior weak-light performance, and bifacial rear-side energy generation compared to standard P-type PERC panels.

Key Variants

• Bifacial Dual-Glass: JKM620N-78HL4-BDV (156 half-cells) or JKM620N-66HL4M-BDV (132 half-cells)
• Monofacial Single-Glass: JKM620N-78HL4-(V) (156 half-cells)

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2. Electrical Characteristics

Standard Test Conditions (STC)

Irradiance: 1000 W/m², Cell Temperature: 25 °C, Air Mass: AM 1.5

Parameter	78HL4-BDV (Bifacial)	78HL4-(V) (Monofacial)	66HL4M-BDV (Bifacial)
Max Power ($P_{max}$)	620 Wp	620 Wp	620 Wp
Module Efficiency	22.18%	22.18%	~23.00%
Voltage at $P_{max}$ ($V_{mp}$)	45.93 V	45.79 V	~39.90 V
Current at $P_{max}$ ($I_{mp}$)	13.50 A	13.54 A	~15.54 A
Open-Circuit Voltage ($V_{oc}$)	55.58 V	55.55 V	~48.20 V
Short-Circuit Current ($I_{sc}$)	14.19 A	14.25 A	~16.50 A
Power Tolerance	0 ~ +3%	0 ~ +3%	0 ~ +3%
Max System Voltage	1500 V DC (IEC/UL)	1000 V / 1500 V DC	1500 V DC (IEC/UL)
Max Series Fuse Rating	30 A	30 A	35 A

Nominal Module Operating Temperature (NMOT / NOCT)

Irradiance: 800 W/m², Ambient Temperature: 20 °C, Wind Speed: 1 m/s, AM 1.5

Parameter	78HL4-BDV	78HL4-(V)
Max Power ($P_{max}$)	466 Wp	466 Wp
Voltage at $P_{max}$ ($V_{mp}$)	43.17 V	42.92 V
Current at $P_{max}$ ($I_{mp}$)	10.80 A	10.85 A
Open-Circuit Voltage ($V_{oc}$)	52.80 V	52.77 V
Short-Circuit Current ($I_{sc}$)	11.45 A	11.50 A

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3. Bifacial Operating Characteristics (BDV Models Only)

For dual-glass variants, power output increases according to ground albedo:

• Bifaciality Factor: $80 \pm 5%$

Rear-Side Gain	Calculated Power ($P_{max}$)	Efficiency	Typical Ground Surface
5%	651 Wp	23.29%	Compacted soil, grass
10%	682 Wp	24.40%	Dry sand, bare concrete
15%	713 Wp	25.51%	Light gravel, bright concrete
20%	744 Wp	26.62%	White membrane, fresh snow
25%	775 Wp	27.73%	Highly reflective white paint / specialized TPO

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4. Temperature Characteristics & Coefficients

N-type silicon exhibits superior thermal behavior, minimizing power drop in hot climates:

• Temperature Coefficient of $P_{max}$: $-0.29% \text{ / } ^\circ\text{C}$ to $-0.30% \text{ / } ^\circ\text{C}$
• Temperature Coefficient of $V_{oc}$: $-0.25% \text{ / } ^\circ\text{C}$
• Temperature Coefficient of $I_{sc}$: $+0.045% \text{ / } ^\circ\text{C}$
• Operating Temperature Range: $-40\ ^\circ\text{C} \text{ to } +85\ ^\circ\text{C}$
• Nominal Module Operating Temperature (NMOT): $45 \pm 2\ ^\circ\text{C}$

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5. Mechanical Specifications

Component	78-Cell Bifacial Dual-Glass	78-Cell Monofacial Single-Glass
Dimensions ($L \times W \times H$)	$2465 \times 1134 \times 30\text{ mm}$	$2465 \times 1134 \times 30\text{ mm}$ (or $35\text{ mm}$)
Weight	$34.0\text{ kg} \pm 3%$	$30.6\text{ kg} \pm 3%$
Front Glass	2.0 mm Semi-tempered Glass (Anti-reflective)	3.2 mm Tempered Glass (Anti-reflective)
Back Surface	2.0 mm Semi-tempered Glass	Weather-resistant Fluoropolymer Backsheet
Frame	Anodized Aluminium Alloy	Anodized Aluminium Alloy
Junction Box	IP68 Rated (3 bypass diodes)	IP68 Rated (3 bypass diodes)
Output Cables	$4.0\text{ mm}^2$ (TUV certified), length custom ($+400\text{ mm}/-200\text{ mm}$)	$4.0\text{ mm}^2$ (TUV certified)
Connector Type	MC4-EVO2 / Jinko JK03M / Amphenol UTX	MC4-EVO2 / Jinko JK03M / Amphenol UTX
Mechanical Load	Front: $5400\text{ Pa}$ (Snow) / Rear: $2400\text{ Pa}$ (Wind)	Front: $5400\text{ Pa}$ / Rear: $2400\text{ Pa}$

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6. Key Technology Highlights

1. SMBB (Super Multi-Busbar) Technology:
   • Densely spaced round-ribbon busbars reduce micro-crack risks and shorten electrical current path lengths.
2. HOT 2.0 Technology:
   • Jinko's proprietary tunnel oxide passivation design prevents Potential-Induced Degradation (Anti-PID) and ensures high reliability in humid/hot regions.
3. Zero Light-Induced Degradation (LID):
   • Unlike boron-oxygen complexes in standard P-type modules, N-type substrates are inherently immu